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-   -   How do you build up any Auto Trans. for upped power? (https://www.homemadeturbo.com/general-discussion-6/how-do-you-build-up-any-auto-trans-upped-power-66149/)

logoutzero 08-04-2006 12:02 AM

How do you build up any Auto Trans. for upped power?
 
** "Swap to stick" doesn't solve the problem, so leave that cat in its bag. **

Anyways, I drive a 03 V6 Accord coupe, and I can't particularly claim that I am proud of the power it puts out. :6

I enjoy driving auto. I don't miss clutching at all. I'm not a racer, and my Accord will never be a track car. And, even though it may sound like it, I'm ~not~ an -------! :P

I glanced over LevelTen.com, didn't get much of a hardon.

Magnus Motorsports only mentions transmissions in the same sentence as clutch, so I don't even need to email them.

I remember a while ago, I stumbled on a thread about Turbo auto vs standard, and someone linked to a site, really exciting, and said something in his post along the lines of "so to me, auto > stick, forget about manual" but, after roughly two hours of searching, I've given up.

So any advice other than "swap it," "buy a new torque convertor," "add a cooler," or "shift kit?"

Or at least some in-depth explinations on mods for autos. I've got plans for my Accord, but I don't need an 11 second track car. But this isn't about the motor or increasing its output, its about the Automatic, which I have no knowledge on.

Thanks folks.

stillnoturbo 08-04-2006 12:08 AM

Re: How do you build up any Auto Trans. for upped power?
 
The car was and is destined for failure. Save your money for better things like a subscription of "Busty". Don't hate them for being big, thats just more to love. :6

93z6t 08-04-2006 12:17 AM

Re: How do you build up any Auto Trans. for upped power?
 
hahahah that ------ crazy ;D ;D um back to the topic i dont think anyone does honda autos and if they do it will cost you out the ass and that is no ---- there

logoutzero 08-04-2006 12:24 AM

Re: How do you build up any Auto Trans. for upped power?
 
Destined for failure? Approaching 80,000 miles, and the car runs as perfect as I can tell.

What's with the hate for anything non-Civic or Integra pre 1992?

Anyone can point me to the learn all of modding autos for power?

jinxy 08-04-2006 12:25 AM

Re: How do you build up any Auto Trans. for upped power?
 
autos are gay.

HMTguy 08-04-2006 12:32 AM

Re: How do you build up any Auto Trans. for upped power?
 
I wouldn't.

fork 08-04-2006 12:48 AM

Re: How do you build up any Auto Trans. for upped power?
 
honda auto transes are gay, dno' ttry and make it better it wont work, if you don't want to swap it then enjoy your 17 second car. you could put a body kit on it, that would be cool

mike94se 08-04-2006 01:11 AM

Re: How do you build up any Auto Trans. for upped power?
 
Get a Torqueflite :y

90accordIHI 08-04-2006 01:28 AM

Re: How do you build up any Auto Trans. for upped power?
 
the best thing you could do would be to swap the tranny faggot

Ravage70 08-04-2006 01:34 AM

Re: How do you build up any Auto Trans. for upped power?
 
get a better cooler and hope it survives

Donald125 08-04-2006 02:11 AM

Re: How do you build up any Auto Trans. for upped power?
 
don`t worth it IMO. For the trouble you "might" be dealing with i`d sell it and buy a manual to start with LOL.
how much more are you looking at anyway

BTw please quit being a smart ass

Originally Posted by logoutzero
What's with the hate for anything non-Civic or Integra pre 1992?

Not every ------- one here drives a civic or integra ::)

crxtuner 08-04-2006 02:37 AM

Re: How do you build up any Auto Trans. for upped power?
 
You dont miss driving a stick? Or you just cant drive a stick :P

USS 08-04-2006 09:38 AM

Re: How do you build up any Auto Trans. for upped power?
 

Originally Posted by logoutzero
Destined for failure? Approaching 80,000 miles, and the car runs as perfect as I can tell.

What's with the hate for anything non-Civic or Integra pre 1992?

Anyone can point me to the learn all of modding autos for power?

The car is an auto. You will have reliability problems and it will fail unless you put a ton of money into it.

We don't hate anying non-Civic or Integra pre 1992. My first HMT car was a 1990 Celica ST (which can be found in the Turbo Projects area), second was a 1991 Integra. I don't see hate there ::)

Do a god damn google search or something on Honda-Tech. You're best option would to find some bellhousing conversion and use a GM tranny. Those new FWD trannies are supposed to be very good.

d0nfry 08-04-2006 10:10 AM

Re: How do you build up any Auto Trans. for upped power?
 

Originally Posted by Snafubmx234
I enjoy driving auto. I don't miss clutching at all. I'm not a racer, and my Accord will never be a track car. And, even though it may sound like it, I'm ~not~ an -------!

they why you want added power? its already like 245 no?

USS 08-04-2006 10:12 AM

Re: How do you build up any Auto Trans. for upped power?
 

Originally Posted by d0nfry
they why you want added power? its already like 245 no?

Did I really say that? :o :o

haha. For real though. Why the hell do you want to build up your auto tranny if you're not wanting some type of race car. Just leave it alone.

sakpase 08-04-2006 11:07 AM

Re: How do you build up any Auto Trans. for upped power?
 

Originally Posted by logoutzero
So any advice other than "swap it," "buy a new torque convertor," "add a cooler," or "shift kit?"
Thanks folks.


Originally Posted by 90boostdaccord
the best thing you could do would be to swap the tranny faggot


Originally Posted by mike94se
Get a Torqueflite :y


Originally Posted by Ravage70
get a better cooler and hope it survives


I'll add the last one..........get a shift kit >:D

78NOVA 08-04-2006 01:09 PM

Re: How do you build up any Auto Trans. for upped power?
 
autos suck. my trans am has one and i hate it because i dont have the power on tap like i do with my 4-speed civic. i cant mash on the gas, drop the clutch and move fast. i feel like im driving a ------ 4 banger in my t/a. get a manual and youll be a lot happier with throttle response and movement. plus i think you like droppin the clutch and gettin the ---- out there anyways right :6

Jorsher 08-04-2006 01:39 PM

Re: How do you build up any Auto Trans. for upped power?
 
Yeah it's funny you group us as all driving pre-92 civic/integras. Most of us DON'T. Mine is a 97 civic :P Any pre-2001 honda is better. And a lot of people here don't even own honda's.

Anyway, that transmission sucks. The reason you haven't found anything is because there is nothing to find. I know you specifically asked us not to say this, but I'm going to anyway. If you want power, and drive a honda, GET A MANUAL.

GenLx 08-04-2006 05:11 PM

Re: How do you build up any Auto Trans. for upped power?
 
i have a 97 accord and its an auto. honda auto trannys are weak. by upped power you mean more than 50-75hp, you really cant do a whole lot there besides getting a better cooler to keep the temps down. if you mean to go more than that, i'm sorry you're ---- out of luck and honestly need a manual. it will cost you more anyone should pay to build that tranny to make it safe for high hp.

btw the v6 coupes are hot, especially with a little lip kit and a drop. and btw, yes it is running 240hp 212tq. not too shabby for starters. you just need to get quicker

mike94se 08-04-2006 05:33 PM

Re: How do you build up any Auto Trans. for upped power?
 
Only great auto was the Torqueflite. Nothing ever surpassed it.



Especialy a Honda one :-*

Zeniceguycrx 08-04-2006 07:58 PM

Re: How do you build up any Auto Trans. for upped power?
 
y is every one talking this 5spd bull ----?
its a v6 accord.
rock the 6 spd

Donald125 08-04-2006 08:14 PM

Re: How do you build up any Auto Trans. for upped power?
 

Originally Posted by Zeniceguycrx
y is every one talking this 5spd bull ----?
its a v6 accord.
rock the 6 spd

LOL i think they are aviliable with 5 speed as well

Jorsher 08-04-2006 08:53 PM

Re: How do you build up any Auto Trans. for upped power?
 
Yeah those accords are clean as hell. There are some nice supercharger kits for it :P Get a manual and boost

krustindumm 08-04-2006 09:38 PM

Re: How do you build up any Auto Trans. for upped power?
 
A shift kit and a better torque convertor are both good places to start. The shift kit should increase line pressure and quicken shifts, both help to limit clutch slip (because that's how auto's work, a bunch of clutches). The torque convertor will change when it begins to function as a torque convertor (they multiply tq, not sure how, has something to do with radial/axial flow and the stator). The cooler is also good because over 180* Tranny fluid begins to break down. Honda's generally run cooler, other companies (because they use a totally different design) tend to run hotter. Keeping it cool will keep it healthy.

I dont think anyone makes performance clutches for your trans, and I really doubt you can squeeze extra plates in, so the best bet to increasing strength is to increase clamping power, aka line pressure.

I hope that helps.

logoutzero 08-04-2006 10:33 PM

Re: How do you build up any Auto Trans. for upped power?
 

Originally Posted by Jorsher
Yeah those accords are clean as hell. There are some nice supercharger kits for it :P Get a manual and boost

Supercharger kits, as far as Comptech I think, its been speculated (from what I've found) won't fit on the 03+ models, until they can find space, something about radiators I think.

Otherwise I think the plan is ZEX. Either that, or now that I have this Accord, I can tear into the 1.5L Kia? HMT KDM style anyone? And yeah, it's a Kia, but it's a 5spd. :6

IndianRide 08-04-2006 11:38 PM

Re: How do you build up any Auto Trans. for upped power?
 
I don't know if the odesey uses the same trans or not, but maybe the internals are stronger on the vans? I know for turbo dodges when building an auto tranny alot of guys put caravan clutches in. Also autos are great for bracket racing

mike94se 08-05-2006 12:15 AM

Re: How do you build up any Auto Trans. for upped power?
 

Originally Posted by skinnye
I don't know if the odesey uses the same trans or not, but maybe the internals are stronger on the vans? I know for turbo dodges when building an auto tranny alot of guys put caravan clutches in. Also autos are great for bracket racing

:y


One guy made a killing with rental Taurases (Tauri?)

Ravage70 08-05-2006 12:25 AM

Re: How do you build up any Auto Trans. for upped power?
 
first the auto, now the kia :X

streetracer42084 08-06-2006 12:23 PM

Re: How do you build up any Auto Trans. for upped power?
 
he must be a noob cus i posted something auto trans as well, and all i got was to swap so he should just go with that advice.

Tom-Guy 08-06-2006 01:22 PM

Re: How do you build up any Auto Trans. for upped power?
 
Automagic transmissions are a kind of Black Art, much like electronics. To someone who does it, it is merely a time consuming PITA, to everyone else it's like whoa.

If you aren't ready to reverse engineer your own valvebody, figure out how to modulate fluid pressures, and find someone to replace the friction material of your bands with a stouter lining... not even touching on how that is an electronically controller transmission, so the control system is going to need molested... you got your two best bits of advice from Transexual Warrick (larger tranny cooler and pray) and everyone else (get a rope).

krustindumm 08-06-2006 02:37 PM

Re: How do you build up any Auto Trans. for upped power?
 

Originally Posted by Joseph Davis
Automagic transmissions are a kind of Black Art, much like electronics. To someone who does it, it is merely a time consuming PITA, to everyone else it's like whoa.

If you aren't ready to reverse engineer your own valvebody, figure out how to modulate fluid pressures, and find someone to replace the friction material of your bands with a stouter lining... not even touching on how that is an electronically controller transmission, so the control system is going to need molested... you got your two best bits of advice from Transexual Warrick (larger tranny cooler and pray) and everyone else (get a rope).

To reinforce what he said, here's how your tranny works.


Originally Posted by Alldata
Hydraulic Flow
Distribution of Hydraulic Pressure
As the engine runs, the ATF pump starts to operate. Automatic transmission fluid (ATF) is drawn through the ATF strainer (filter) and discharged into the hydraulic circuit. Then, ATF flowing from the ATF pump becomes line pressure that's regulated by the regulator valve. Torque converter pressure from the regulator valve enters the torque converter through the lock-up shift valve and it is discharged from the torque converter. The torque converter check valve prevents torque converter pressure from rising.
The PCM controls the shift solenoid valves ON and OFF, and the shift solenoid valves control shift solenoid pressure to the shift valves. Applying shift solenoid pressure to the shift valves moves the position of the shift valve, and switches the port of hydraulic pressure. The PCM also controls A/T clutch pressure control solenoid valves A and B.
The A/T clutch pressure control solenoid valves A and B regulate the A/T clutch pressure control solenoid pressure and apply the A/T clutch pressure control solenoid pressure to CPC valves A and B,
When shifting between upper gear and lower gear, the clutch is engaged by pressure from the CPC pressure mode. The PCM controls one of the shift solenoid valves to move the position of the shift valve. This movement switches the port of the CPC and line pressure. Line pressure is then applied to the clutch, and the CPC pressure is intercepted.
Engaging the clutch with line pressure happens after CPC pressure mode has completed.

http://img406.imageshack.us/img406/6...6789ma1.th.gif

Hydraulic pressure at the ports is as follows:

NOTE:

* CPC: Clutch Pressure Control pressure
* SH: Shift Solenoid pressure
* LS A: A/T Clutch Pressure Control Solenoid A pressure
* LS B: A/T Clutch Pressure Control Solenoid B pressure
* LS C: A/T Clutch Pressure Control Solenoid C pressure
* LC: Torque Converter Clutch Solenoid pressure

N Position

http://img200.imageshack.us/img200/9...1369ue4.th.gif

The PCM controls the shift solenoid valves. The conditions of the shift solenoid valve and positions of the shift valve are as follows:

* Shift solenoid valve A is turned OFF, and shift valve A moves to the left side.
* Shift solenoid valve B is turned ON, and shift valve B stays on the right side.
* Shift solenoid valved is turned OFF, and shift valve C stays on the left side. Line pressure (1) passes through the manual valve and becomes line pressure (25). Line pressure (25) stops at shift valve D. Line pressure (1) also flows to the modulator valve and becomes modulator pressure (6). Modulator pressure (6) flows to the shift solenoid valves and the A/T clutch pressure control solenoid valves. Under this condition, hydraulic pressure is not applied to the clutches.

NOTE: When used, "left" or "right" indicates direction on the hydraulic circuit.

D Position: 1st gear shifting from the N position

http://img343.imageshack.us/img343/9...1371xf1.th.gif

Shift solenoid valves remain the same as in the N position when shifting to the D position from the N position. The manual valve is moved to the D position, and switches the port of line pressure (4) leading to shift valve C and CPC valve B. Line pressure (4) flows to the 1st clutch via the orifice. Line pressure (1) becomes CPC C pressure (4C) at CPC valve C, then goes to the 1st accumulator back side. Line pressure (4) also becomes the CPC B pressure (4B) at the CPC B valve. CPC B pressure goes to the 3rd clutch, via the shift valves C, B, and A, and the 3rd clutch is engaged. The 1st clutch is engaged gently when shifting to the D position from the N position.

NOTE: When used, "left" or "right" indicates direction on the hydraulic circuit.

D Position: Driving in 1st gear

http://img527.imageshack.us/img527/9...6805xi6.th.gif

The PCM turns shift solenoid valves A and C ON, and shift solenoid valve B stays ON. SH A pressure (SA) in the right side of shift valves A and E is released, and shift valves A and E are moved to the right side. SH C pressure (SC) in the right side of shift valve C is released, and modulator pressure (6) is applied to the left side of shift valve C. Shift valve C is moved to the right side. These valve movements release CPC C pressure (4C) from the back of the 1st accumulator and the 3rd clutch, and the 1st clutch is engaged securely.

NOTE: When used, "left" or "right" indicates direction on the hydraulic circuit.

D Position: Shifting between 1st gear and 2nd gear

http://img517.imageshack.us/img517/7...1375bu5.th.gif

As the speed of the vehicle reaches the prescribed value, the PCM controls the A/T clutch pressure control solenoid valves. LS B pressure (57) in the right side of CPC valve B is released, and LS A pressure (56) is applied to the right side of CPC valve A. Line pressure (4) becomes CPC A pressure (4A) at CPC valve A, and CPC A pressure passes through shift valves C, A, and B, to become 2nd clutch pressure. The 2nd clutch is engaged with CPC pressure, and the 1st clutch is also engaged. No power is transmitted because of the one-way clutch.

NOTE: When used, "left" or "right" indicates direction on the hydraulic circuit.

D Position: Driving in 2nd gear

http://img194.imageshack.us/img194/8...6031zn0.th.gif

The PCM turns shift solenoid valve C OFF, and shift solenoid valves A and B stays ON. Shift solenoid valve C is turned OFF, and SH C pressure (SC) is applied to the right side of shift valve C. Then shift valve C is moved to the left side to switch the line pressure port and CPC pressure port. The 2nd clutch pressure is changed to line pressure mode, and the 2nd clutch is engaged securely. The 1st clutch is also engaged. No power is transmitted because of the one-way clutch.

NOTE: When used, "left" or "right" indicates direction on the hydraulic circuit.

D Position: Shining between 2nd gear and 3rd gear

http://img198.imageshack.us/img198/4...1379fs4.th.gif

As the speed of the vehicle reaches the prescribed value, the PCM turns shift solenoid valve A OFF. The PCM also controls the A/T clutch pressure control solenoid valve B to apply LS B pressure (57) to CPC valve B. Shift solenoid valve B stays ON, and C stays OFF. Shift solenoid valve A is turned OFF, and SH A pressure (SA) is applied to the right side of shift valves A and E. Then shift valves A and E are moved to the left side to switch the line pressure port and CPC pressure port. Line pressure (4) becomes CPC A pressure (4A) at CPC valve A, and becomes CPC B pressure (4B) at CPC valve B, CPC B pressure (4B) becomes 3rd clutch pressure (30) at shift valve A via shift valves C and B, and flows to the 3rd clutch. The 2nd clutch pressure is changed to CPC pressure mode by switching the position of shift valve A. The 1st clutch is also engaged. No power is transmitted because of the one-way clutch.

NOTE: When used, "left" or "right" indicates direction on the hydraulic circuit.

D Position: Driving in 3rd gear

http://img198.imageshack.us/img198/7...1384an7.th.gif

The PCM turns shift solenoid valve C ON, and controls A/T clutch pressure control solenoid valve A to release LS A pressure (56) in CPC valve A. Shift solenoid valve A stays OFF, and B stays ON. Releasing LS A pressure (56) in CPC valve A releases CPC A pressure in the 2nd clutch pressure circuit. Shift solenoid valve C is turned ON, and SH C pressure (SC) in the right side of shift valve C is released. Then shift valve C is moved to the right side to switch the line pressure port and CPC pressure port. The 3rd clutch pressure is changed to line pressure mode, and the 3rd clutch is engaged securely. The 1st clutch is also engaged. No power is transmitted because of the one-way clutch.

NOTE: When used, "left" or "right" indicates direction on the hydraulic circuit.

D Position: Shifting between 3rd gear and 4th gear

http://img194.imageshack.us/img194/4...1388ud9.th.gif

As the speed of the vehicle reaches the prescribed value, the PCM turns shift solenoid valve B OFF. The PCM also controls the A/T clutch pressure control solenoid valve A to apply LS A pressure (56) to CPC valve A. Shift solenoid valve A stays OFF, and C stays ON. Shift solenoid valve B is turned OFF, and SH B pressure (SB) is applied to the right side of shift valve B. Then shift valve B is moved to the left side to switch the line pressure port and CPC pressure port. Line pressure (4) becomes CPC A pressure (4A) at CPC valve A, and becomes CPC B pressure (4B) at CPC valve B. CPC A pressure (4A) becomes 4th clutch pressure (40) at shift valve D via shift valves C, A, and B, and flows to the 4th clutch. The 3rd clutch pressure is changed to CPC pressure mode by switching the position of shift valve B. The 1st clutch is also engaged. No power is transmitted because of the one-way clutch.

NOTE: When used, "left" or "right" indicates direction on the hydraulic circuit.

D Position: Driving in 4th gear

http://img194.imageshack.us/img194/7...1393gx3.th.gif

The PCM turns shift solenoid valve C OFF, and controls A/T clutch pressure control solenoid valve B to release LS B pressure (57) in CPC valve B. Shift solenoid valves A and B stay OFF. Releasing LS B pressure (57) in CPC valve B releases CPC B pressure in the 3rd clutch pressure circuit. Shift solenoid valve C is turned OFF, and SH C pressure (SC) is applied to the right side of shift valve C. Then shift valve C is moved to the left side to switch the line pressure port and CPC pressure port. Line pressure (4) from the manual valve becomes 4th clutch pressure (40) at shift valve D via shift valves C, A, and B, and flows to the 4th clutch. The 4th clutch pressure is changed to line pressure mode by switching the position of shift valve C, and the 4th clutch is engaged securely. The 1st clutch is also engaged. No power is transmitted because of the one-way clutch.

NOTE: When used, "left" or "right" indicates direction on the hydraulic circuit.

D Position: Shifting between 4th gear and 5th gear

http://img468.imageshack.us/img468/7...4193qz1.th.gif

As the speed of the vehicle reaches the prescribed value, the PCM turns shift solenoid valve A ON. The PCM also controls the A/T clutch pressure control solenoid valve B to apply LS B pressure (57) to CPC valve B. Shift solenoid valve B and C stay OFF. Shift solenoid valve A is turned ON, and SH A pressure (SA) in the right side of shift valves A and E is released. Then shift valves A and E are moved to the left side to switch the line pressure port and CPC pressure port. Line pressure (4) becomes CPC A pressure (4A) at CPC valve A, and becomes CPC B pressure (4B) at CPC valve B, CPC B pressure (4B) becomes 5th clutch pressure (50) at shift valve C, and flows to the 5th clutch via shift valves B and A and the manual valve. The 4th clutch pressure is changed to CPC pressure mode by switching the position of shift valve A. The 1st clutch is also engaged. No power is transmitted because of the one-way clutch.

NOTE: When used, "left" or "right" indicates direction on the hydraulic circuit.

D Position: Driving in 5th gear

http://img328.imageshack.us/img328/5...0602qt9.th.gif

The PCM turns shift solenoid valve C ON, and controls A/T clutch pressure control solenoid valve A to release LS A pressure (56) in CPC valve A. Shift solenoid valve A stays ON, and B stays OFF. Releasing LS A pressure (56) in CPC valve A releases CPC A pressure in the 4th clutch pressure circuit. Shift solenoid valve C is turned ON, and SH C pressure (SC) in the right side of shift valve C is released. Then shift valve C is moved to the right side to switch the line pressure port and CPC pressure port. Line pressure (4) from the manual valve becomes 5th clutch pressure (50) at the manual valve, via shift valves C, B, and A, and flows to the 5th clutch. The 5th clutch pressure is changed to line pressure mode by switching the position of shift valve C. The 5th clutch is engaged securely, and the 1st clutch is also engaged. No power is transmitted because of the one-way clutch.

NOTE: When used, "left" or "right" indicates direction on the hydraulic circuit.

2 Position

http://img200.imageshack.us/img200/5...6820dj6.th.gif

The PCM controls the shift solenoid valves and the A/T clutch pressure control solenoid valves. The conditions of the shift solenoid valves and the positions of shift valves are as follows:

* Shift solenoid valve A is turned ON, and shift valve A stays on the right side.
* Shift solenoid valve B is turned ON, and shift valve B stays on the right side.
* Shift solenoid valve C is turned OFF, and shift valve C stays on the left side. The PCM also controls A/T clutch pressure control solenoid valve A to apply LS A pressure (56) to CPC valve A. Line pressure (4) from the manual valve becomes 2nd clutch pressure (20) at shift valve B, via shift valves C and A. 2nd clutch pressure (20) is applied to the 2nd clutch, and the 2nd clutch is engaged. The 1st clutch is also engaged. No power is transmitted because of the one-way clutch.

NOTE: When used, "left" or "right" indicates direction on the hydraulic circuit.

1 Position

http://img513.imageshack.us/img513/3...8538gw4.th.gif

The PCM controls the shift solenoid valves and the A/T clutch pressure control solenoid valves. The conditions of the shift solenoid valves and the positions of shift valves are as follows:

* Shift solenoid valve A is turned ON, and shift valve A stays on the right side.
* Shift solenoid valve B is turned ON, and shift valve B stays on the right side.
* Shift solenoid valve C is turned ON, and shift valve C moves to the right side by modulator pressure (6). The PCM also controls A/T clutch pressure control solenoid valve B to apply LS B pressure (57) to CPC valve B. Line pressure (4) from the manual valve becomes 1st clutch pressure (10) at shift valve C. 1st clutch pressure (10) is applied to the 1st clutch, and the 1st clutch is engaged. Line pressure (4) also flows to CPC valve B, and becomes CPC B pressure (4B). CPC B pressure (4B) becomes 1st-hold clutch pressure (15) at shift valve D, via shift valves C, B, and A. 1st-hold clutch pressure (15) is applied to the 1st-hold clutch, and the 1st-hold clutch is engaged.

NOTE: When used, "left" or "right" indicates direction on the hydraulic circuit.

R Position: Shifting to the R position from the P or N position

http://img315.imageshack.us/img315/1...0978im0.th.gif

Line pressure (1) becomes line pressure (3) at the manual valve, and flows to the reverse CPC valve. Line pressure (3) is regulated by the reverse CPC valve and becomes line pressure (3'). Line pressure (3') pushes the servo valve to the reverse position, passes through the servo valve, and flows to the manual valve. Line pressure (3") becomes 5th clutch pressure (50). The 5th clutch pressure (50) is applied to the 5th clutch, and 5th clutch is engaged with the reverse CPC pressure mode.

NOTE: When used, "left" or "right" indicates direction on the hydraulic circuit.

R Position: Driving in reverse gear
The PCM turns shift solenoid valve C OFF. Shift solenoid valve A stays OFF and B stays ON. Shift solenoid valve C is turned OFF, and SH C pressure (SC) is applied to the right side of the reverse CPC valve. Then the reverse CPC valve moves to the left side, creating full line pressure. Line pressure to the 5th clutch is the same as when shifting to the R position, and 5th clutch pressure increases. The 5th clutch is engaged with line pressure mode.

Reverse Inhibitor Control

http://img200.imageshack.us/img200/1...8542dk1.th.gif

When the R position is selected while the vehicle is moving forward at speeds over 6 mph (10 km/h) , the PCM outputs to turn shift solenoid valves A and C ON; and shift solenoid valve B remains ON. The reverse CPC valve is moved to right side and covers the port to stop the line pressure (3') to the servo valve. The line pressure (3') is not applied to the servo valve, and the 5th clutch pressure (50) is not applied to the 5th clutch. As a result, power is not transmitted to the reverse position.

NOTE: When used. "left" or "right" indicates direction on the hydraulic circuit.

P Position

http://img200.imageshack.us/img200/1...0980tw1.th.gif

Shift solenoid valve C is turned OFF by the PCM, and SH C pressure (SC) is applied to the right side of the reverse CPC valve. Then the reverse CPC valve is moved to the left side to uncover the port leading line pressure (3) to the servo valve. Line pressure (3') passes through the servo valve and flows to the manual valve. Line pressure (3") is intercepted at the manual valve, and is not applied to the clutches.

NOTE: When used, "left" or "right" indicates direction on the hydraulic circuit.


Tom-Guy 08-06-2006 02:46 PM

Re: How do you build up any Auto Trans. for upped power?
 
Hell, instructions and operational schematics like that just saved you a couple hundred man hours... just a couple hundred more to go, son, get saddled up!

sakpase 08-06-2006 03:33 PM

Re: How do you build up any Auto Trans. for upped power?
 
uH....uh.....uh too bad I have a manual........or else I'd be all over those schematics.













Donald125 08-06-2006 06:23 PM

Re: How do you build up any Auto Trans. for upped power?
 
JD remind me of how these maxima guy always hack up the ATfluid line resistor to reach maximum line pressure to the transmission, it slips very minimal on the band and locks up very hard , but runs a lot cooler. :S


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