TwinTurbo.NET: Nissan 300ZX forum - TB's are not necessary with larger piping.
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Subject TB's are not necessary with larger piping.
     
Posted by Evan(CA) on January 25, 2015 at 11:38 PM
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In Reply To thanks. Does anyone still sell larger throttle bodies for z? posted by zxnazx(tt) on January 25, 2015 at 11:05 PM
     
Message In fact the gains are almost non existent. There was a 3071 car that did back to back dynos of 58mm to Robs (62?) Or it could have been stock TBs to one or the other but even at the 500hp+ level they only gained ~5whp which at that power level isn't even noticeable and the gains would be even less at lower power levels with smaller turbos. I believe the heads are the bottle neck not the TB's. So maybe with sufficient head work the TB's would help but IMHO until I see hard evidence I wouldn't waste the money on them.


     
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