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-   -   electric clutch on a Sc (https://www.homemadeturbo.com/forced-induction-7/electric-clutch-sc-52999/)

Skuce 12-31-2005 03:24 PM

Re: electric clutch on a Sc
 

Originally Posted by WHISKEYDICKS45
so all SC come with a mechinism so that you can control when the super charger is engaged

Yes. I did read the entire thread. Maybe you should too. This answer infers that he's assuming that all SC's come with a clutched pulley.

Bone1 12-31-2005 03:33 PM

Re: electric clutch on a Sc
 
hey drunk, skuce and me know whats going on.........really simple.........

I even posted pics in a different post..........

Eaton M63 if it matters to you.

Skuce 12-31-2005 06:07 PM

Re: electric clutch on a Sc
 
:y


In all honesty. it is nice having the switch to turn the S/C on and off and go back to N/A.

Just some things to be aware of.

-N/A with the S/C just sitting there slightly freewheeling is a LOT less power than if you were stock N/A
-The engine doesn't like the S/C being turned off while the engine is running. It jerks and hesitates (stalls the very odd time if rev's are low) because there is all of a sudden a very big block in the air passage that wasn't there a second earlier...and the ECU can't compensate that fast. It goes to N/A mode about 2 seconds afterwards.
-ECU doesn't like switching. It adapts to Boosted. Then when you switch to N/A it tries to relearn everything. Then when you go back to Boost, all the N/A values are rewritten again. Stock computer really doesn't like the change.
*My car is MAF'd so i don't know how a MAP'd car will react in this.
-Standalone is the best way to go if you are going to be switching it on and off all the time.

Mind you, running N/A then hitting the switch is a lot like nitrous. Instant power! and you can do it over and over again and never fill up a dumb bottle ;D

Bone1 01-01-2006 04:14 AM

Re: electric clutch on a Sc
 
simple part I'm gonna tell you about, Benz bypass valve, we took over the Intel processor with Radio Shack parts.

drunkinmaster1 01-01-2006 11:13 AM

Re: electric clutch on a Sc
 
my appologies for being a dick. i was thinking more of a centrifugal supercharger than a roots style.

con 01-01-2006 12:20 PM

Re: electric clutch on a Sc
 
my ford lightning had a bypass valve that opened up when you wern't on the throttle so the sc just turned with very very little load. I do believe this is what Mista is talking about, I also believe he has used these superchargers before and is very knowlagable on this subject although I have never seen one mounted up on a engine before. +HINT HINT+

Bone1 01-02-2006 05:17 AM

Re: electric clutch on a Sc
 
Ford uses the Eaton's with built in bypass to the blower casing......

My plate which requires a custom header, only thing holding me back right now, working with SMSP on the issue.......

http://bonespec.com/Honda/AKSC/AKplate1.jpg

The original design that cleared the stock manifold (like the one that sold on ebay!) but due to being mounted out so far it breaks the mounting bolts......

http://bonespec.com/Honda/vids/aksc/P3030021.jpg

reddevil 01-02-2006 10:24 PM

Re: electric clutch on a Sc
 
Hello Nooblets......


Two well known superchargers come with an electric clutch.

The Eaton M62 from the Mercedes Kompressor series and a Toyota Corrola (?) AZG??!?!?. I don't know the Toyota info cause I havent owned one, but have seen it in person as a STOCK JDM setup.

Back to the M62.

It moves .75 liter of air per revolution.

You need to have a LARGE crank pulley to get serious PSI on a motor 2.2 and larger. I am using a 7.25" crank pulley to its 3.625" pulley for a 2-1 ratio and getting only 8-10 psi with no intercooler.

When switched off, it idles PERFECTLY. The rotors simply freewheel. I still have plenty of fun with it off compared to when the SC wasnt installed at all.

I have hooked up a vacumn switch that turns the SC on when I get near 0 vacumn, ie on the gas.

I went from 100 whp ? torque to 155 whp 175 torque.



Here is a thread with pics

https://www.homemadeturbo.com/forum/...?topic=52953.0

Bone1 01-03-2006 05:26 AM

Re: electric clutch on a Sc
 
with the current Honda D series setup, we are only seeing 7-8 psi at 11-11.5K blower shaft rpm intercooled, yeah need a 2:1 drive ratio but the large clutch pulley prevents it.

reddevil 01-05-2006 02:57 AM

Re: electric clutch on a Sc
 
Can Hondas have custom LARGE crank pullies made? Or do you have to depend upon some sort of dampener pulley? Subarus don't "need" a dampender crank pulley, so I just had a huge ass pulley milled for me.

My plan is to either go to a 2.5-1 ratio (which means a HUGE 9.25ish crank pulley), or a twin supercharger setup for 18-20 psi with front mount IC. Yeah I know turbo would be easier at that point, but it will be cool!


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