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The mkiv Supra Owners Club

Single turbo sizing advice


Mk4Gaz

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At 4000 rpm, mine makes 275 rhhp, whereas Kim's pushes 375 rhhp.

At 5k, both around 650 rhhp.

At 6k, Kim 750 rhhp, mine 770 rhhp.

At 6.5k, both 800 rhhp.

 

You see that the 280 cams allow the turbo to pull up to almost 8000 rpm ; Kim's 264 cams let the turbo get out of puff after 6.7k.

 

It's a nice comparision I think. Imo, those cast manifs are interesting, but only in combination with ethanol.

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