Rep Power: 0

well, there is noticeable increase in low end, or but maybe its my imagination... you have to fill with premium or your engine will knock to hell!!! my guess is 150 hp with 1 octane booster on 93 pump gas. i will let you know with a dyno, but even with 1 octane booster, it still knocks. now my engine could become unstable... whats your opinions? i should get a dyno soon.

edit when i put them in we had wo shave a lil of the piston head so maybe compression is near like 12.0 to 1. i wasnt present at all... the guy is a professional... i left it all to him.

 
Rep Power: 432

i would love to see dyno sheet.
keep us updated.

 
Rep Power: 0

no prob, i'm all ears!

 
Rep Power: 404

tight, so umm, when is it going to be dynoed?

 
Rep Power: 0

i forgot to say... check engine light is on! i dunno what that means, but the pull is still harder from pedal to the metal.

 
Rep Power: 0

soon, like next friday when i get paid

 
Rep Power: 404

humm, i think the check engine light could be on because of the change in fuel needed, so it would be a good idea to get a V-afc a tell it to give you more fuel.

 
Rep Power: 0

so i would have to run richer in order for it not to be on, wwhere do you get a vafc?

 
Rep Power: 0

stock compression of 9.9/127=12/x... what is x... that could be my hp... maybe

edit 9.9/114=12/y y is tq

 
Rep Power: 404

cross multiply

9.9x=12* 127

9.9x=1524

1524/9.9=x

x= 153.93

 
Rep Power: 0

time for all motor competition with the turbos and nitrous'd

 
Rep Power: 404

9.9/114=12/y

9.9y=12*114

9.9y= 1368

1368/9.9=y

y= 138.18

 
Rep Power: 404

i think all motor is good but i don't think it is good for high compression with turbo or nos

 
Rep Power: 404

wait never mind, a all motor and a turbo with the same hp, the all motor will probly win

 
Rep Power: 404

all you need now is to port and polish with a 3 angle valve job

 
Rep Power: 0

138 tq, good god!! yikes

 
Rep Power: 0

p/p would increase my compression right? that might mess things up. i had that dont in my old auto and i kinda did feel a difference

 
Rep Power: 404

port and polish will free up the flowage of air in and out of your car. and maby now you can get you cam shft regrounded.

 
Rep Power: 0

what would the 3 angle valve job do?

 
Rep Power: 339

well u are probablly gonna want a block guard and change the air-to-fuel mixture to run a little more rich, that should take care of the knocking also test the compression so we can get a good idea of what compression ratio you are running... also try to raise the rev limit up to around 7500-8k...

also a vtec controller would be money too cause u dont want it initiating too soon on an N/A car

 
Rep Power: 337

thats why a v-afc would be perfect as the next mod.

(this is of course if i'm thinking its the right thing. v-afc = vtec & a/f controller s-afc = only a/f contoller)

 
Rep Power: 512

so, an s-afc can raise the rev limit past 6800? can you bring it all the way up to 8000? is there any harm in this?

 
Rep Power: 424

You're going to need to do some serious work now. You'll first need to cut that compression back down below 12. It'll definately need more air and more fuel. Either a VAFC or something like the Greddy Protec E01 (it's an engine management system). Probably gonna need a head job to make it run right. Get yourself an EGT gauge, and make sure it stays below 1500, if it goes over SHUT IT DOWN. You'll melt the internals. The CEL could be on for many things... the car is probably running lean, it may sense too much pressure or temperatures that are higher than they should be all around. Watch your coolant temp too... it's probably running much hotter than usual.
Change the plugs too.
This is something that should have been done with a full engine build up, bumping your compression by changing the pistons is not the intelligent way to do it, you're gonna kill your engine VERY fast, especially if it's knocking. You're just asking for detonation.

 
Rep Power: 404

well i wouldn't suggest the rise of your rpm to go up unless you have changed alot of internals on your car, i wouldn't even suggest you go to red line right now since you have fuel problems

 
Rep Power: 0

i will see if i can let copression down by shaving the heads more... i hope the guy wont charge me anymore since my last payday went too him, instead off some of the bills i pay... i just put in 2 more octane boosters and it quit knocking

 
Rep Power: 512

what fuel problems are there now? would there still be a fuel cutoff at 6800 even if you raised the rpm limit?

 
Rep Power: 0

the check engine light is still on but the knocking is gone

 
Rep Power: 0

Umm, how do you think they limit the revs? When the computer detects the motor buzzing that high it cuts the fuel off, which doesn't allow the engine to rev any higher....

 
Rep Power: 375

Hey if you want a quick temporary fix to run a lil richer i think one of those resistors stuck in your IAT sensor (your intake sensor) will work...get a 100ohm resistor

 
Rep Power: 512

so you think the sound of the engine is what cuts the fuel off and limits the rev???