what would be the most optimal CR to use for street? the most i would boost is 12-14lbs. I just dont want the car to feel slugish when driving it at low rpm.. is it posible to stay with 10.1 cr? it has to be something closer to 9.5.1?
Please shed some light.. thanks!

 

nah...i think 9:1 would be fine for 12psi or so...not as high as gsr compression a lil slower in the lower rpms but when boosting it would be safer.

 

with good fuel management 9.5:1-10:1

 

9-1 seems to be the common compression from what I have seen. (I'm running 10psi now.. soon to be uppped to 12-14)

I have 9-1 pistons and the car isn't dog slow off the line or driving normally.. sometimes it feels that way, but my car is retarted a few degrees on the distributor, which does cause a little slugishness, but not that noticable..

 

i found this in a magazine..by the looks of it 9.0:1 and 9.5:1 are your best bet and maybe higher with real good fuel management...hopeully this helps out..

0psi 2psi 4psi 6psi 8psi 10psi 12psi 14psi 16psi

8.0:1 9.1 10.2 11.3 12.4 13.4 14.5 15.6 16.7
8.5:1 9.7 10.8 12.0 13.1 14.3 15.4 16.6 17.8
9.0:1 10.2 11.4 12.7 13.9 15.1 16.3 17.6 18.8
9.5:1 10.8 12.1 13.4 14.7 16.0 17.3 18.5 19.8

[Modified by b18b98, 11:49 PM 12/25/2001]


[Modified by b18b98, 11:49 PM 12/25/2001]

 

thanks all for the input.. little more info.. i plan on running that with 550CC injectors and hondata. should i be ok at 14lbs MAX. I want to run 8-10 lbs daily driving but make sure that it can take 14 anytime in case something *unexpected comes up* let me know fellas.. i plan on doing this set up before summer so that i can have a better more enjoyable summer this year.