What would be a good turbo upgrade for the rb25det engine if it was going into a 240. I know its a very general question but I can't find info anywere else.

 

depends what you want to do with the car. i would probably cheap out and put a holsett diesel turbo on there lol. gt30 or gt32 would be nice

 

No, learn the power that you will have stock. Then once you have mastered that upgrade. Otherwise you crash.

 

yeah I got it on mines silvia s14 and its fast,hey.Does any one know about idle problems,my rb25 doesnt want to go above the 3000 rpms.when it gets there it starts to idle like if its time to shift?

 

i'm debating whether to go with a GT30 or GT35 with the RB25.

 

GT3071R
Direct bolt on..

 

i think you should go with a gt42r

my opinion

 

your bets bet is a VG turbo out runs the gt42 and it spools on 250rpms on CTF is runing those on there car and they have been runing for 2 long sessons
and there less expencive the garret and precision.upgrade your fuel system.for me Im going with 1600cc injectors aeromotive fuel pump,since I dont trust twin walbros.The thing is if my fuel pump brakes down or have a problem the car will stop runing,with two walbros and one brakes your running still running with out noticing your running lean,I aways advise read and keep reading.I havent seen a full build RB25 in the US sow cant go with what other people say,its time to change the thing about RB25 and what other poeple think they know about them.I have never build a mild build engine and sure wont start now.good luck bro...oh... and sorry for the maf problem it was one wire from the ECU got lose sow its all good