rb25 turbo - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

240sxwanted · 08-28-2010, 05:23 PM

So i was installing a blitz dual sbc boost controller on my rb25 today. After it was installed, I took it out for a ride. I set the controller to 10%, 0% is stock boost. I had a boost gauge hooked up to make sure i wouldn't overboost. So i hit the gas for about 4 seconds and the boost gauge only read up to 7.5 psi, and boom! the turbo blows. I pull over and see ceramic pieces on the exhaust canister. Im sure the boost controller was installed correctly. Now im in the market for an rb25 non ceramic turbo. Also i was thinking of buying a t2 to t3 flange adapter and get an sr t28. Has anyone heard of putting an sr t28 with a flange adaptor? Or what do you guys think happened to the turbo? Any input is appreciated. Thanks

singlecamslam · 08-28-2010, 05:55 PM

Arent all rb25 turbos non ceramic?

240sxwanted · 08-28-2010, 06:05 PM

dont think so, rb25 s1's are the cermic ones im not sure though. Obviously this one is ceramic because there was chunks of ceramic on the exhaust canister. What i want to know is if anyone has tried a t28 from an sr on an rb25 using an adaptor flange

Sileighty_85 · 08-28-2010, 06:40 PM

Quote:

Originally Posted by singlecamslam

Arent all rb25 turbos non ceramic?

All the　Stock RB turbos use ceramic Exhaust wheels

240sxwanted · 08-28-2010, 06:44 PM

was the turbo bound to blow eventually, or was it caused by the boost controller?

eklips3 · 08-28-2010, 10:46 PM

The RB25 NEO turbo has a steel wheel.

i guess your turbo might have been weak to begin with . Did you get a crazy boost spike after your 4 seconds of 7.5 psi ? cause even still if the turbo was good and hasnt been acting up on you before then it should of been able to take one boost spike.

240sxwanted · 08-28-2010, 11:46 PM

Quote:

Originally Posted by eklips3

The RB25 NEO turbo has a steel wheel.

i guess your turbo might have been weak to begin with . Did you get a crazy boost spike after your 4 seconds of 7.5 psi ? cause even still if the turbo was good and hasnt been acting up on you before then it should of been able to take one boost spike.

thats what im guessing that the turbo was weak. no crazy boost spike though.

om3ga · 08-29-2010, 12:48 AM

Crazy, you didn't see any spike at all?

240sxwanted · 08-29-2010, 07:52 AM

there might have been a boost spike, I had a friend beside me checking the boost guage. I guess no one happened to look at it while the boost spike. So can someone clear this up, which rb25 turbos are ceramic, and which are steel?

Sileighty_85 · 08-29-2010, 09:47 AM

Quote:

Originally Posted by eklips3

The RB25 NEO turbo has a steel wheel.

From what ive seen and researched they are still ceramic but have a very thick high temp coating of some sort on them to allow them to handle more boost

Quote:

Originally Posted by 240sxwanted

So can someone clear this up, which rb25 turbos are ceramic, and which are steel?

None of them are, they are all ceramic

Katsumbhong · 08-29-2010, 11:28 AM

All of the RB25DET have Ceramic exhaust wheels/fins.

08-28-2010, 05:23 PM	#1
240sxwanted Zilvia Junkie Join Date: Mar 2009 Location: Santa Fe, NM Posts: 311 Trader Rating: (11) Feedback Score: 11 reviews	rb25 turbo So i was installing a blitz dual sbc boost controller on my rb25 today. After it was installed, I took it out for a ride. I set the controller to 10%, 0% is stock boost. I had a boost gauge hooked up to make sure i wouldn't overboost. So i hit the gas for about 4 seconds and the boost gauge only read up to 7.5 psi, and boom! the turbo blows. I pull over and see ceramic pieces on the exhaust canister. Im sure the boost controller was installed correctly. Now im in the market for an rb25 non ceramic turbo. Also i was thinking of buying a t2 to t3 flange adapter and get an sr t28. Has anyone heard of putting an sr t28 with a flange adaptor? Or what do you guys think happened to the turbo? Any input is appreciated. Thanks

08-28-2010, 05:55 PM	#2
singlecamslam Post Whore! Join Date: Apr 2008 Location: Norcal Posts: 2,531 Trader Rating: (10) Feedback Score: 10 reviews	Arent all rb25 turbos non ceramic? __________________ Nothing says racecar like a stock car with no interior.

08-28-2010, 10:46 PM	#6
eklips3 Zilvia Addict Join Date: Apr 2008 Location: Calgary Canada Age: 31 Posts: 626 Trader Rating: (3) Feedback Score: 3 reviews	The RB25 NEO turbo has a steel wheel. i guess your turbo might have been weak to begin with . Did you get a crazy boost spike after your 4 seconds of 7.5 psi ? cause even still if the turbo was good and hasnt been acting up on you before then it should of been able to take one boost spike. __________________ 1992 240sx (RB20. [email protected])

08-29-2010, 11:28 AM	#11
Katsumbhong Zilvia Junkie Join Date: Aug 2006 Location: San Diego, California Age: 35 Posts: 454 Trader Rating: (2) Feedback Score: 2 reviews	All of the RB25DET have Ceramic exhaust wheels/fins. __________________ ~USMC~

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08-28-2010, 06:05 PM	#3
240sxwanted Zilvia Junkie Join Date: Mar 2009 Location: Santa Fe, NM Posts: 311 Trader Rating: (11) Feedback Score: 11 reviews	dont think so, rb25 s1's are the cermic ones im not sure though. Obviously this one is ceramic because there was chunks of ceramic on the exhaust canister. What i want to know is if anyone has tried a t28 from an sr on an rb25 using an adaptor flange

08-28-2010, 06:44 PM	#5
240sxwanted Zilvia Junkie Join Date: Mar 2009 Location: Santa Fe, NM Posts: 311 Trader Rating: (11) Feedback Score: 11 reviews	was the turbo bound to blow eventually, or was it caused by the boost controller?

08-29-2010, 12:48 AM	#8
om3ga Zilvia Addict Join Date: Jan 2007 Location: Up and Down! California Posts: 878 Trader Rating: (8) Feedback Score: 8 reviews	Crazy, you didn't see any spike at all?

08-29-2010, 07:52 AM	#9
240sxwanted Zilvia Junkie Join Date: Mar 2009 Location: Santa Fe, NM Posts: 311 Trader Rating: (11) Feedback Score: 11 reviews	there might have been a boost spike, I had a friend beside me checking the boost guage. I guess no one happened to look at it while the boost spike. So can someone clear this up, which rb25 turbos are ceramic, and which are steel?