High Comp. Hesitates. No Power. Runs hot. Dies Up Top
 

These are some of the issues I am having with my car.

I did a compression check and it was 225 psi all across, with 8.5:1 pistons
The car with bog/hesitate just when its about to come out of vacuum, anywhere from 5"hg and 0.
The power band is completely pushed up in RPM range and all power dies up top. I used to make 240 TQ by 5k and hold that 240 to redline and now i just make it at 6800 and it immediately dies off.
And it also seams to run slightly hotter

Any ideas?

Re: High Comp. Hesitates. No Power. Runs hot. Dies Up Top (rdssk8rcs1)
 

Are you throwing any codes ?
It sounds like the vehicle maybe running lean.
What engine management are you running ?

Re: High Comp. Hesitates. No Power. Runs hot. Dies Up Top (mtber)
 

how is it high comp. with 8.5:1 thats not high sounds like the motor is built for turbo and its not hooked up

Re: High Comp. Hesitates. No Power. Runs hot. Dies Up Top (superfast666)
 

Sorry, i should have stated my set up before.

ls/vtec W/ pistons and rods
gsr head/tranny
revhard turbo kit
1000cc injectors
tuned with hondata

Re: High Comp. Hesitates. No Power. Runs hot. Dies Up Top (rdssk8rcs1)
 

so its boggin out on the top end sounds like fuel but you have huge injectors maybe its a fuel pump or pressure regulator

Re: High Comp. Hesitates. No Power. Runs hot. Dies Up Top (superfast666)
 

Air fuel seams to be good all the way up. 12.0:1 ish all the way up

Re: High Comp. Hesitates. No Power. Runs hot. Dies Up Top (rdssk8rcs1)
 

that dosent make sense

Re: High Comp. Hesitates. No Power. Runs hot. Dies Up Top (superfast666)
 

Heres my old dyno sheet @ 15psi....
https://i64.photobucket.com/albums/h...tDynoSheet.jpg
And heres my new dyno sheet on the same exact set up except bigger injectors...
https://i64.photobucket.com/albums/h...4/HPIM1029.jpg


Modified by rdssk8rcs1 at 11:17 PM 7/7/2008

Re: High Comp. Hesitates. No Power. Runs hot. Dies Up Top (rdssk8rcs1)
 

Take the car back to your tuner to have it checked out. Trying to diagnose this over the net is going to be difficult.

Re: High Comp. Hesitates. No Power. Runs hot. Dies Up Top (rdssk8rcs1)
 

I was hoping to just come up with some ideas

Re: High Comp. Hesitates. No Power. Runs hot. Dies Up Top (rdssk8rcs1)
 

maybe the new bigger injectors are crappin out on the top end

any reason why you switched to bigger injectors i dont really see a problem with the first dyno graph it looks pretty good.

Re: (unusual71)
 

Well after that tune, went back again @ 21 psi and was starting to reach too high of a duty cycle