HO project .... - Performance Forum

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HO project ....
Saturday, April 30, 2011 9:20 AM
hello i have just finich my new set up for this summer GO WATCH MY MOD LIST.
I HAVE SOME QUESTION .

on my stock injector 27lbs was running 55 psi of fuel presure.Now with my now Ford brown top injectors 36lbs i hame running 47 psi is it ok
on 55psi the car is cranking but wont start can i get a tip on dis... ?

and also i hame going to tune the car dis afthernow put the rev limiter to 7400 to 7500 rpm, unlock the speed limiter not more then 220 KMH or 140MPH, delet the check engine cam sencor
change the advanse and reatard can i also dow some thing more to give it more power i dont now much about tuning ... ?

thank you from a french Canadien

Re: HO project ....
Saturday, April 30, 2011 2:58 PM
7400 to 7500 rpm with a 2.4 oil pump. Good luck. And kinda didn't understand what you had to say.



Re: HO project ....
Saturday, April 30, 2011 8:46 PM
its not worth it. buy an LSX car.



Re: HO project ....
Saturday, April 30, 2011 9:13 PM
z yaaaa wrote:its not worth it. buy an LSX car.


haha lmao

To the OP youll need to get a wideband and data log before you do any serious romping. It will lean out above 3500 and byebye engine. Also 7000 is pushing the stock oilpump in my opinion. It will also not run right with those bigger injectors unless you change the injector constant while tuning. It will idle pig rich and wash the cylinder walls.



Re: HO project ....
Sunday, May 01, 2011 7:02 AM
the oil pump is from turbotech racing, not from gm but i now it is not a 2.3l oil pump set up

i have set the fuel pressure regulator to 40psi on 36lbs injector . shood i get 310cc injectors .... car run very good to me ?

i will put a wideband dis week.
wath number shood the gauge by at 15 + = ritch and 11- = leen
Re: HO project ....
Sunday, May 01, 2011 8:26 AM
14.7 is the stock cruising air fuel ratio. The higher the number the leaner the engine and the lower the number the richer the engine. You probably want somewhere around 13.0 while floored.

Your injectors are fine but you need to adjust the injector constant in your tuning software. I would leave it at the stock psi or putting in the larger injectors is kinda pointless since your in effect detuning them by lowering the psi

.



Re: HO project ....
Sunday, May 01, 2011 9:41 AM
you probably running pig rich with the brown top. i have them and before i tune it, it running wayyyyy too rich. had foul plug due to too much fuel, running on 3 cylinder....
at wot, you will want in the 12.8-13 afr. 14.7 while cruising. its the other around, lower the number on your wideband richer you are. so 11 is rich
whre are you located in qc?
I'm in quebec city



Re: HO project ....
Sunday, May 01, 2011 12:47 PM
i hame in Laval city

idol, the wideband read 14.8 to 15.4 1000 rpm
cruzing the wideband 14.4 to 14.8 2500 rpm
when i hame floring it the widebang read 10 for a 1/4 of a second and it is going to 11.8 all the way to 7400 rpm

all dis on 40 psi fuel presure with the ford brown to 36lbs

the ecm is tune dy DBI TUNING in St-hubert with HPT
all dis on a 91 octane fuel
i dont now much wath i did to the ecm advance 2 degre maybe

also wat is a normal oil pressure

cold : 1000 rpm
warm : 3000 rpm
warm : 7000 rpm

thank you very much for you good info
Re: HO project ....
Sunday, May 01, 2011 1:45 PM
here are the new number

i have lower the fuel pressure a bit more 37 psi

idol, the wideband read 14.8 to 15.4 1000 rpm
cruzing the wideband 14.4 to 14.8 2500 rpm
when i hame floring it the widebang read 11 for a 1/4 of a second and it is going to 12.6 all the way to 7400 rpm

look good to my
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