im finishing up my b20 vtec motor and the c/r will be around 12.7 to 1 . im using endyne rollerwaves and polishing the cyl head bowl. im hoping to run pump gas (93 oct) w/ about 15 degrees timing . im using a stock pcm so the timing map isnt to radical. any info or suguestions are welcome.

 

I have this to add: your car will move :o

 

12.0 an up have been run on the street, it has happen'd but why push it the power you will make won't be worth the edge you running on, if you make 187at 11:7.1 you will only make about 194-195 at 12.7 just an example, is it really worth that 6-8hp for running on the edge if not over it on street gas and you have to remeber how hot it get's on fl, but i think at 12.7 it won't last till summer so that not a prob,

 

if i only put down 195 you will be right but i have my hopes set much higher-210whp.

 

with hondata its more like 220whp

 

hondata is in my future but for now stock pcm, vfac, and larger injectors will have to do.

 

i was giving an example only who know what you will put down just showing you it's not worth it, and i know of a b20/vtec that put down 210-215 and he had 12.1(red eg hatch wild rice) so you don't need a crazy comp ratio but go for it that thing will rape for the two months it run's

 

yup.

id stat under 12:1

you should get ur 220+whp but you motor life will be like 10-25k miles.
either spun bearing or the rings are gunna fry.

 

its not a spun bearing or ring you need to wory aboutwith a b20vtec , its the stock sleeves.

disregard this if youre going golden eagle or aebs.
one thing you should remember though however is if you run 100 octane which is only like 1.85-1.90 a gallon you will be perrectly fine with a compression ratio of damn about 13:1 with good timing.

its flooring it at 2000 rpm in 5th gear where you'll have trouble.

 

i don;t see a prob with stock sleeve's 4 bottle's and counting on the coupe, many 1-5 5th spray over a loney bridge on sat a whole bottle in a night. but i will say they are aren't as strong as say gsr b16 sleeve's, when building a race motor witch anyhitng over 11.5-11.7 is no matter what you think, shit something is going to break be it spun bearing's(happen's alot on lsvtec's), or fired rings or busted sleeve's,