Rb25 In R32 Not The Usual Problems

[Rolls]

definitely drop exhaust, might have dropped a bolt down there and melted the cat

Edited August 3, 2012 by Rolls

[DVS JEZ]

Yeah had it running off the actuator and made 5 psi fine and spiked to 7 sometimes which i dont really care too much about, but it still felt slow. like it still makes boost and you can hear the turbo spooling but doesn't do much with it.

Its a stock skyline. U might be expecting too much

Get it on a dyno then u will know if it is making the correct power.

[Mitcho_7]

Checked for vac leaks just to rule them out?

[HR32GTS 4DOOR]

Its a stock skyline. U might be expecting too much

Get it on a dyno then u will know if it is making the correct power.

Yeah that is what i was kind of starting to think, but it feels slower than my mates old stockish 32 with an rb20det not a 25. its definitely not slow up top is just majorly lacking in midrange torque

[Rolls]

5psi isn't much but the housing shouldn't be glowing red hot unless you were absolutely beating the hell out of it.

[HR32GTS 4DOOR]

Nah wasn't just going up windy point rd or whatever its called in 3rd.

Ok so took the exhaust off and went for a drive. No difference just made more boost (running off gate spring). still sluggish between 3-5000

[Moodles2]

Any reason why VCT isn't being used? Will explain lack of midrange

[GTSBoy]

So now do the rest of my list.

[HR32GTS 4DOOR]

Any reason why VCT isn't being used? Will explain lack of midrange

Using RB20 loom so no VCT I'll hook it up when I can get a plug for it.

[Rolls]

Just leave it permanently powered, you'll lose a bit of top end but the extra midrange makes it totally worth it.

[HR32GTS 4DOOR]

Just leave it permanently powered, you'll lose a bit of top end but the extra midrange makes it totally worth it.

Have a 33 ecu so may as well hook it up properly

[HR32GTS 4DOOR]

Should probably post more about the drive with no exhaust. when boost builds the car just gets very loud and droney but once it is past the flat spot it sounds quite normal like it should. can't tell change in sound with exhaust on since quiet exhaust. So probably the timing is just hella retarded I'll hook up a timing light when I get the chance.

[HR32GTS 4DOOR]

been a while since I posted here but I finally hooked up a timing light, set it at 15 deg, drove it, made it worse so assumed it was reading double, then tried to do it again but now it wont idle properly, like it will jump between 600-1000 rpm so i can't get a good reading for the timing. turning the screw on the AAC valve does nothing. also if i take the filter off the AFM (AFM still on car tho) it gets a lot worse, like idle drops and eventually stalls. also I connected up the VCT and that did nothing.

[HR32GTS 4DOOR]

Ok so after doing a bit of research I found that I may not have the standard rb25det injectors.

Am I correct to believe that the standard RB25DET injectors are purple?

The plenum on the engine does not have the little nipple on the back of the plenum for the stock boost gage so I believe it may be from a non turbo rb25. (the plenum came off a different engine to the one it is on now)

The injectors on the engine now are red, As said before, am using rb25det computer so I doubt the car would run if non turbo rb25 injectors were used.

Help would be great guys