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gaz_moose · 02-01-2017, 02:24 PM

Ive changed from stock compression ratio to roughly 9:1, am I going to be ok using the car on the current map that I had done for the old compression ratio? I want to put some miles on it before I stick a bigger turbo on it and go all out on the rollers. I don't plan on bashing it off the limiter just cruising it around on the 100RON fuel its mapped for..

its a VVT s14 engine mapped on nistune with s15 injectors and turbo/z32afm,

it had decent (140psi) compression test results when mapped and should have 150/160 across the board now as its brand spanking new.

soo. id going up half a point on CR a real deal breaker??

02-01-2017, 02:24 PM	#1
gaz_moose Zilvia Member Join Date: Mar 2008 Location: engerland Posts: 242 Trader Rating: (0)	SR20 from 8:5:1 to 9:1 compression Ive changed from stock compression ratio to roughly 9:1, am I going to be ok using the car on the current map that I had done for the old compression ratio? I want to put some miles on it before I stick a bigger turbo on it and go all out on the rollers. I don't plan on bashing it off the limiter just cruising it around on the 100RON fuel its mapped for.. its a VVT s14 engine mapped on nistune with s15 injectors and turbo/z32afm, it had decent (140psi) compression test results when mapped and should have 150/160 across the board now as its brand spanking new. soo. id going up half a point on CR a real deal breaker??