I recently installed a revhard (stage 2) turbo kit on my 96 gsr. All motor I ran the car at its best, 14.9 in the 1/4 mile, consistant 15.1's. Now that Im running 7 pounds of boost I can not get better than a 14.7. The car runs very smooth and is reliable but, it just seems I should be hitting a little bit better times. Everything seems to be installed correctly, does anyone have any advice? What should I check out first? I do not see full boost until about 4 grand, is this normal (t3t4)? Additional mods are stage 1 clutchmasters clutch, custom 2.5 inch exhaust without cat, and walbro 255 pump. The only other problem I have with the car is sometimes when Im just driving at a stedy speed for a while, it will start jerking, it almost feels as if im running out of gas. What could that be?Any advice will be helpful.

 

are you gripping?? do you have an a/f guage? if you do have one check to see if you are rich or lean. and yeah boost shouldnt hit its full till around that rpm, mine didnt hit full til about 4500 but I was on 11 psi.

 

What AFC system are you using? Get Hondata and tune it. It's probably running rich. What injectors? You should be hitting under 14's at 8 pounds.

Boost at ~4k is normal.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boofster &raquo;</TD></TR><TR><TD CLASS="quote">What AFC system are you using? Get Hondata and tune it. It's probably running rich. What injectors? You should be hitting under 14's at 8 pounds.

Boost at ~4k is normal.</TD></TR></TABLE>
he wont be hitting under 14's if there is no traction. grippin is important when you are turbo.

 

1) Time doesn't mean anything, we need your mph
2) What is your fuel setup?

You could run 14.9 almotor @ 93, while you could run 14.5@ 104, so what was the mph on the boosted run? As of right now your problem sounds fuel related.

 

He gots a good point if the mph is up there its running right, just not getting any traction.

 

i'm guessing you need better fuel management........

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crawdad689 &raquo;</TD></TR><TR><TD CLASS="quote">i'm guessing you need better fuel management........</TD></TR></TABLE>

Exactly what I'm thinking. That and better tires. Revhard doesn't include "proper" fuel management with their kits so best advise is to look into a good Hondata setup with larger injectors and a larger fuel pump.

 

The stumbling is a common af/timing issue. What are you using to control fuel, and what is your timing set at?

 

yea sounds like maybe even a little detonation when "cruising" steady

you say you have no cat... so you must have a CEL.... not good... get an o2 simulator.... or a cat. you won't pass inspection with a CEL anyway....

-Erik

 

Im using the vortech fmu. My mile per hour was 95.23 when I ran 14.7. My front tires are getting down to the wear bars, which may have something to do with it. My CEL is not on, I didnt think it should be. Inspections are not a problem, I just go into the shop I used to work in and slap a sticker on. I cant really afford a hondata right now so I bought a vafc II, hope it helps. I do also need a a/f gauge. You guys respond quick thanks for info. Oh yeah, as far as timing it has not been touched.

 

holly ****, greensboro??/

post a pic of your car and your engine bay if you have one.......
i can only think of a select few turbo integras from greensboro and none of the ones i've seen are gsr's....... all ls's.

search up on this... post in the forced induction forum for sure but i would think you should retard your timing.... i dunno why i'm saying this but it seems like i've heard that before... since i don't know the first thing about tuning i dunno though.... just a thought.

-Erik &lt;--- formerly residing in High Point... until Jan...

 

You should be trapping much higher than 95mph.

Do you know your FP #'s? Stock injectors?

You wont need an a/f guage to tune, the dyno will have wideband capabilities or your tuner will have his own sensor/display. Get it tuned man! Do not rag on it until you have it set up properly.

 

What is fp #? Yes stock injectors

 

Its not that im trying to rag on it, I just thought a bolt on kit would do a little more for me. I am planning to tune on a dyno soon.

 

Do you have any where locla you can take the car? Somethign is definetely wrong if your trapping 95 mph. Even with Fmu(bandaid) a stock gsr with bolt on kit, 6-7 psi should trap around 104-105 or so when running properly.

Also this may be a long shot, but a friend if mine at one time noticed his car was not running 100%, times were off, the works. Turns out the fuel pump was wired in backwards

My suggestion is go back step by step and try to find the problem. It may just be your fuel, but try to eliminate as may problems as you can.

 

get hondata and tune that summ mmummabitch

 

Hondata would be nice, just to much $ for right now.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1boostedgsr &raquo;</TD></TR><TR><TD CLASS="quote">Hondata would be nice, just to much $ for right now.</TD></TR></TABLE>

Then what do you plan on doing to tune it when you take it to the dyno. Also, try and find some bigger injectors and maybe a larger fuel pump. I'm thinking maybe some DSM injectors.

 

I will use a VAFC for now, and I do have a 255 in tank pump. I was trying to hit mid 13's without anything besides the turbo kit on 7 pounds of boost. I was told it was not nessesary for me to get bigger injectors on 7 pounds. But I don't know.

 

i've seen stock injectors running 6psi... i'm sure 7psi would be fine since you've got the vafc to dump more fuel but i'm not speaking from first hand experiance, so.....

i don't see why you couldn't hit a 13 with traction....

 

Correct me if I have mistaken, but doesn't the vafc control air flow? If your running rich it adds air and lean it takes air.

 

even w/ poor traction liek someone said, you should have higher trap speeds, i ran 97 mph trap w/ my c5 motor w/ jus intake. you should be faster. def thinks it needs some serious tuning

 

If you are running stock injectors @ 7lbs then this is what you NEED:

12:1 fmu
inline fuel pump
missing link

I think you can slap a VAFC on there to tune, but i don't know how this will interact with the missing link (MAP sensor).
Are you trying to do the AFC hack? I did it and got the same jerkiness you described. It's caused by the inability of the stock ecu to control 440 injectors at part throttle. This is what you need:
AFC
255 high flow pump
440cc injectors

Peace.

 

I do already have the fmu, intank pump, and missing link.