johnny boii Posted May 8, 2011 Share Posted May 8, 2011 (edited) hey guys i have what i believe to be a 1.5 series r33 with a rb25det in it i fitted a rebuilt and hiflowed stock rb25det turbo to it after i did that the stock boost raised from 7psi to 9 psi i had no issues was running fine. the other day i fitted a turbosmart boost tee into the equasion so i could raise the boost to about 12 psi once i had fitted my fmic i fitted the boost tee having alot of trouble then realised that i had to take the ball and spring out of it to allow it to run on my engine. now my issue is that once i raise the boost to about 12psi under wide open throttle it misses and feels like it is fuel cutting like it completely shuts down the engine for a millissecond and comes back on but only half throttle it boosts fine. when i turn the tap fully closed then open it about a half a turn it runs the stock 9psi and drives fine i have replaced the plugs the day i fitted the boost tee any help would be fantastic please help ahahah Edited May 8, 2011 by johnny boii Link to comment https://www.sau.com.au/forums/topic/363577-rb25det-missing-underload/ Share on other sites More sharing options...
ahh 33 s2 Posted May 9, 2011 Share Posted May 9, 2011 Standard computer? If so that would be ur problem is my guess Link to comment https://www.sau.com.au/forums/topic/363577-rb25det-missing-underload/#findComment-5802485 Share on other sites More sharing options...
JonnoHR31 Posted May 9, 2011 Share Posted May 9, 2011 if its standard ecu your maxxing the afm and its cutting out to protect the motor. keep the boost under 10psi until you can get an aftermarket ecu Link to comment https://www.sau.com.au/forums/topic/363577-rb25det-missing-underload/#findComment-5802705 Share on other sites More sharing options...
johnny boii Posted May 9, 2011 Author Share Posted May 9, 2011 yes standard computer...i was planning on a safc2 would that fix the problem or? Link to comment https://www.sau.com.au/forums/topic/363577-rb25det-missing-underload/#findComment-5802759 Share on other sites More sharing options...
JonnoHR31 Posted May 9, 2011 Share Posted May 9, 2011 it'll help but its not ideal and you certainly wont be able to get the most out of the highflow. a full aftermarket computer and possibly z32 afm and injectors, depending on power goals and the ecu, is the best solution. Link to comment https://www.sau.com.au/forums/topic/363577-rb25det-missing-underload/#findComment-5802791 Share on other sites More sharing options...
johnny boii Posted May 9, 2011 Author Share Posted May 9, 2011 i wanted around about 300hp atw but i dont really wanna splurge the money on a PFC for now so i guess im stuck to 9 psi hahahah cheers guys Link to comment https://www.sau.com.au/forums/topic/363577-rb25det-missing-underload/#findComment-5803185 Share on other sites More sharing options...
JonnoHR31 Posted May 9, 2011 Share Posted May 9, 2011 300rwhp would be pushing it for injectors and afm aswell Link to comment https://www.sau.com.au/forums/topic/363577-rb25det-missing-underload/#findComment-5803258 Share on other sites More sharing options...
johnny boii Posted May 9, 2011 Author Share Posted May 9, 2011 if i had the money for a pfc i would have the money for injectors afm intake mani id do the lot haha Link to comment https://www.sau.com.au/forums/topic/363577-rb25det-missing-underload/#findComment-5803270 Share on other sites More sharing options...
ahh 33 s2 Posted May 9, 2011 Share Posted May 9, 2011 well dont waste money on a SAFC and save for a bit longer for a PFC, its well worth the wait Link to comment https://www.sau.com.au/forums/topic/363577-rb25det-missing-underload/#findComment-5803275 Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now