Smoking Rb25det

[R33S14]

Ok heres my dilemma. ive got a 95 240 with a 97 ECR33 RB25DET swap. i just did the following modifications, Greddy intake plenum, infinity Q45 throttle body, FMIC, Greddy Type RS BOV, and walboro 255 fuel pump. When i cranked the car up white smoak poured out of the exhaust constantly while at idle and when the throttle was engaged. it smells like antifreeze but where the hell is it coming from. i need to get my car back running so any help on figuring out my problem will be greatly appreciated. thanks.

[Devils_Advocate21]

HeadGasket? Could be if it is white smoke, white means water, black is fuel, blue is oil, i recon the head gasket?

Anyone else?

[Abo Bob]

How long did you run it for? Does it idle rough?

[R33S14]

I only ran the car for roughly 1 minute total. it smoothly idled at 1000RPM and i dont think its a head gasket cause the smoke only came out of the exhaust nothing leaked out of the motor. and were talking tons of smoke.

[Stronzo]

imho the problem is blown head gasket . Usually overheating leads to this. Check for bubles in the antfreese tank while reving the engine + if your antifreese disappears without leaks -- that`s it.

[R33S14]

ok so i went outside today and cranked the car and cheked the radiator to see what happened. at idle (which was 2000 today) a small amount of white smoke came from the exhaust. after accelerating lots of white smoke came out and black shit blew out of the exhaust also the coolant level dropped in the radiator. so im assuming its a headgasket problem correct?

[mad082]

if the coolant has dropped then it is a head gasket that is gone, so you will need to get the head machined as well.

[R33S14]

ok so now that ive figured out its a headgasket problem what size gasket should i go with. ive got a place thats goin to do the work for me i just need to get the parts. i was looking at a 1.2 mm cosmetic or a 1.0mm greddy with ARP headstuds. what will be the best.

[Abo Bob]

Cometic are pretty good. What compression ratio do you want? What turbo are you using/do you intend to use?

[R33S14]

right now im running stock until i can get some more cash. and as for compression im not sure when its all said and done maybe in the 8.5:1 to 9:1. as for aftermarket turbo ive looked at alot and right now am looking at a T-67.

[180bfj20det]

Just before you go taking the head off do a compression test.

I remember once a 180sx doing this only at idle and it wasnt a HG. (never knew what it was)

[The Dan]

Compression leakdown test first before you take anyone's advice on definate causes. Then do a dye test to be sure. Takes about 1/2 an hour to do both and the results are 100% accurate.