Evil_Wizard

95 CX hatchback, 2000 GSR swap, Intake, Exhaust only. Gutted catalytic converter, and a P72 ECU.

148.1 WHP
114 TQ

Hp curve looks real choppy tuner said he thinks my CX fuel pump is trying to go out on me. Car is starting to bog on the highway also. I am getting a Wahlboro (SP???) fuel pump and a fuel pressure regulator and he said it should be able to bump it up to 165 with a bit of tuning. I also have some Skunk2 cam gears laying around and a VAFC in which I am gonna get put on to see if maybe I can reach a little higher numbers.

Evs-One

do as you said and dyno again.

I wouldn't bother with other mods until your engine is up to par

you do a compression check?

form'n'function

my friend and i just finished his 95 gsr swap in 93 eg hatch. he had cai, dc header, custom test pipe, 5zigen cat-back, act stage 2, zex flywheel and phantom grip lsd, also hondata stage 2. and he dyno at 160whp

TurboBumblBee

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Evil_Wizard &raquo;</TD></TR><TR><TD CLASS="quote">95 CX hatchback, 2000 GSR swap, Intake, Exhaust only. Gutted catalytic converter, and a P72 ECU.

148.1 WHP
114 TQ

Hp curve looks real choppy tuner said he thinks my CX fuel pump is trying to go out on me. Car is starting to bog on the highway also. I am getting a Wahlboro (SP???) fuel pump and a fuel pressure regulator and he said it should be able to bump it up to 165 with a bit of tuning. I also have some Skunk2 cam gears laying around and a VAFC in which I am gonna get put on to see if maybe I can reach a little higher numbers.</TD></TR></TABLE>

those numbers seem really low for a GSR.. i would get rid of the gutted cat and get a straight pipe, your doing the same to the environment with a gutted cat, get a fuel pump and also make sure that your secondary butterflies are working correctly.. do they work as you know of? ive seen dynos where they lost 10-15 HP cause they were not working properly..

owen_the_soyboy

make sure you get a fuel pump from a vtec car any b16/gsr/itr pump is fine and drops right in... plus cheap used.

dyno tuning is the key

Dancing is Forbidden

I would put a DOHC fuel pump (or your walbro) in and see if that helps. It should help a lot up top. How high were you taking the car? Wideband o2?

Viorent Grip! EG

yea..i agree...numbers seem a bit low...best of luck getting the motor up to par...but how does car feel when you drive it?

Tubby$

my brother has a B16A with minor mods...and he put 160.1 on the dyno?

Dancing is Forbidden

also, is your timing properly set? Advance it a little and you might see a 2-4 hp gain and better mid range.

NEcivic

If your compression is good, check your timing w/ a gun (no just by lookin at the dizzy), throw on a new fuel pump, and pop in a test pipe.

Evil_Wizard

Ok just to let you know. We had it on the dyno and tuned it a little that day. And still the best we could get was 148.1 that was with 4 runs and no wideband as far as I know. The reason I had him do the dyno run was a drivability problem. Car was starting to bog when I got ready to give it gas after normal driving. Say I wanted to pass someone at around 70mph whn I would step on the gas it would bog and on one occasion it even back fired. Friends tell me it has black smoke when i get on it real hard. I went to get a test pipe made from a friend of mine and while I was waiting for him to make one we took the old cat off and discovered it was already gutted. I was thinking it was the catalytic converter going bad. But nope. Anyway the dyno graph on my car was very choppy. He showed me several other dyno graphs and almost all of them were smooth. So we are gonna try Fuel Pump and fuel pressure regulator first and then go from there. And yes the secondary butterflies are working properly. Thanks for the help guys and keep the responses coming.

ProEater

something isnt right.... i got almost the same numbers with my b16a2 with i/h/e

Evil_Wizard

Do you guys know what the compression is suppose to be on a stock GSR? I know it is 10:1 but I mean PSI. 2000 model

TheAutoboxer

i don't know the compression, but i hope someone can tell you. Only advice i can say is i would'nt stress over it, i'm sure it's a little problem that will be solved. problems are only problems if you make them an issue