What PSI?
 

I need some advice on how many pounds to run. Here's my setup-

ZC (OEM rebuild 60k miles ago)
14b w/ 8lb wastegate
CCA 31x8x2.75 FMIC
AFC Hack
MSD BTM
DSM 450s
NGK 1 step colder plugs

The car will be professionally tuned on a dyno. I do not want to blow this motor, so I want to keep it very safe. How many pounds do you think I should run?

Re:What PSI?
 

i've been told 10 psi, i'm running the same set up but with a t25, just finshed today and dynoing it next wed, i'll get back with you then. I'm hoping to run 10psi.

Re:What PSI?
 

What car is this going on?

With proper tuning, most anything is possible, look at jeff running 11.x+ CR with his twin turbo b18 ls/vtec.

Re:What PSI?
 

A 91 CRX. I know tuning plays a huge role in what the motor will take, but I would rather be slower and not blow the motor than vice versa. I was planning on 8 pounds but Ive seen alot of people running 10, so Im kinda confused.

Re:What PSI?
 

for me the stop on any stock internals engine is 10 psi.

Re:What PSI?
 

Yeah, I definitely wont go above that, but Im tempted to run at 10 pounds.

Re:What PSI?
 

im going for 10 psi for sure, lol.

I want to do 13s, I have a d16z6 on a 88 crx.

Re:What PSI?
 

Start off low, add more when you know things are safe, like no detonation and check to make sure your plugs are within the zone often. I'm going with the no more then 10 pound rule. Why didn't you go all out and chip the ecu?

Re:What PSI?
 

Don't ------- use the AFC, you can't "profesionaly" tune with it, go with turbo edit, Run 8 psi, and make more power then you would have with the HACk. The operationaly limit on a stock map sensor with turboedit is 10 psi. Your enigne will handle that safely on a daily basses.

Re:What PSI?
 

I sent the ECU out to street_kings to have TE installed, but he said it could not be done. So I figured the hack was better than an FMU.

Re:What PSI?
 

What was the problem? Can't you just go out and buy a spare one off of ebay and try and work it over? I'm not going to doubt his ability, but what was the issue that is specific to your car?

Re:What PSI?
 

It's possible to chip his 88 Integra ECU, but for that series of ECU's it doesn't have an external EPROM. SO, you would have to desolder the microprocessor, then solder in a daughter board, then resolder the EEPROM, IC, Jumpers, and microprocessor on top of that board.

Cliff notes: too much of a friggin hassle :P

Re:What PSI?
 

11-12psi is doable with some good fuel management. 10 is safe for sure.

Re:What PSI?
 

blah, 88 integra.

yeah that sounds like a pain in the ass, um pick up a spare ecu for cheap and start experimenting with the soldering gun tegunderpressure. Don't forget to invest in some desoldering braid (solder wick). Sounds like a solder mess that I would get into for fun.

Re:What PSI?
 

I dont know the first thing about ECUs.

So considering I am running the hack w/ a BTM would you run 8,9, or 10lbs?

I really, really dont want to blow this motor.

Also, would -35 for idle, and -30 across the board be plenty rich, until I can get it tuned? And I dont need to worry about high/low crossover points do I?

Re:What PSI?
 

woah you will be runin hella rich. check this out mang.
1-3k =-43
4k= -38
5k to 9k =-36
then set your btm to about .25 or .5 dgrees retard and you should be fine up to 9-10psi.IMO you dont even need a btm for 10psi, but just to be safe.
leave your crossovers at 98/99%

Re:What PSI?
 

How certain are you of those points? I dont mean to question your knowledge but I just dont want to mess up my motor.

The least retard I can do with the BTM is 1 degree per PSI.

What do the crossover points mean?

So, 98% would be the low settings and 99% would be the high, correct?

Re:What PSI?
 

Also, do I need a high flow fuel pump?

Re:What PSI?
 

IMO, I would say no to the fuel pump for 10 psi.

But U'll need a boost controller to over ride the stock setting for the internal wastegate. I would suggest U go Electronic, to compensate for spiking in the pressure.

B4 a fuel pump, I would get a boost sensitive fuel regulator. Aeromotive or AEM.

Re:What PSI?
 

Hey can you explain why you should go with the EBC eaxtly, i don't understand spiking in pressure?

Also, why does he need a boost sensitive fuel regulator, i've never heard of anyone using/needing one of these, what exactly does it do/prevent.

Re:What PSI?
 

I think that UR messing w/me, with the amount of posts that U have. ;D
But just in case. The MBC's R usually of the screw based bleed off type. Which R static. They won't compensate for fast acceleration. So U'll go over your boost setting.

The boost aware FPR (oppossed to the B&M variety) R more for your tuner, if U have a good piggy back fuel Mgt. system. I started my turbo project w/a B&M FPR. After tuning my E-Manage on a Dyno, it required subsequent trips for the map to be touched up for the low end. On one of my upgrades I swapped out the B&M for an AEM. The guy that does my E-Manage mappings told me that he usually sees more of the Aeromotive/AEM style FPR for boost applications & that most maps R based on their usage. On my B&M he had to make a one off map. That's Y I had to get minor touch ups.

Re:What PSI?
 

lol, cool. I've never heard of boost sensitive FPR and I didn't know Aeromotive/AEM where any different than a normal FPR. good to know, although I don't see why you wouldn't just keep your FPR stock, seeing as how your tunning with the emanage. hahaha, anyway yeah I don't know jack ---- about the emanage, what car did you use it on?

lol, anyway, yeah I wasn't sure If EBCs kept boost from spiking, compared to a MBC. but I don't understand what causes boost spike.

Re:What PSI?
 

I've got an E-Manage in both my
'93 DelSolSi SOHC, 14G turbo
'97 Eclipse GST, 20G Turbo (30 psi)

If U have a good tuner, the E-Manage does it's job. Problem is Greddy is still reluctant to train "UnAuthorized" personnel. My Tuner normally does Haltech & Hondata. From that experience he has mastered the the Greddy.

To my understanding on M/E BC's; The electronic versions have (what some define as) intelligent boost sensitive circuitry that regulates the bleed off so that the user justs feels an even increase.