Markgtni Posted April 25, 2015 Share Posted April 25, 2015 since i had my engine change from my silver car (now sold) into my white V, it has been boost creeping to around 12psi and still not hitting fuel cut wich i thought kicks into safe mode anything over .8psi?.. as i had the same problem with my gt advance it was boosting high but kicked into safe mode, and have also noticed even tho its boosting alot higher now it doesnt feel anywere near as quick as what the silver car was on standard boost.. still same engine and same turbo, im proper confused, any advice appreciated Quote Link to post Share on other sites
ReeceGolliker Posted April 26, 2015 Share Posted April 26, 2015 (edited) I could be wrong but ive read a few times that boost cut is at .85bar ( 12.5psi ) so I think you will be boosting just below the fuel cut, mines currently doing the same but not going over 12psi. Edited April 26, 2015 by ReeceGolliker Quote Link to post Share on other sites
mikey4410 Posted April 26, 2015 Share Posted April 26, 2015 (edited) tiz correct reece.have a read through my TOPICS..I induced fuel cut whilst staionary and have alot of written up voltages and values for all to read Edited April 26, 2015 by mikey4410 Quote Link to post Share on other sites
Markgtni Posted April 26, 2015 Author Share Posted April 26, 2015 cheers guys..and will have a look through mikey Quote Link to post Share on other sites
Ryan_EP82 GT Posted April 27, 2015 Share Posted April 27, 2015 fuel cuts 12.5 psi as above, i run mine at 12 psi for a few years and never hit fuel cut once mate. Quote Link to post Share on other sites
Markgtni Posted April 27, 2015 Author Share Posted April 27, 2015 happydays so should be safe enough running 12psi? also any idea why even tho its boosting higher now than standard why it doesnt feel as quick as when the engine was in the silver glanza, i know the white car is slightly heavier because its sunroof model has slightly bigger wheels, and doesnt have carbon fiber bonnet, but i still dont think that extra should effect it as much as it is Quote Link to post Share on other sites
ReeceGolliker Posted April 27, 2015 Share Posted April 27, 2015 Bigger wheels cause slower acceleration as well as the car being heaver could cause it to feel slower maybe? Quote Link to post Share on other sites
Ryan_EP82 GT Posted April 27, 2015 Share Posted April 27, 2015 bigger wheels will affect acceleration as reece says mark, but not excessively tbh. have you any boost leaks? maybe do a compression check on the engine just for peace of mind mate. all the same running gear? Quote Link to post Share on other sites
Markgtni Posted April 28, 2015 Author Share Posted April 28, 2015 ok will have look at getting some lightweigt 14's again, doesnt sound like theres any boost leaks had all the vacuum hoses changed, but will get it checked over again, will get compression test done aswell, and yes all same running gear same gearbox everthing is the same apart from im running a fmic now and have no dump valve at the min, the hks one i was using is made to fit the tmic, Quote Link to post Share on other sites
Ryan_EP82 GT Posted April 28, 2015 Share Posted April 28, 2015 could just be a change in the way the power comes in mate due to the front mount being fitted now as it shifts the power band higher up, prolongs the revs abit whereas top mounted your threw the gears in no time. just from my own personal experience. Quote Link to post Share on other sites
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