TwinTurbo.NET: Nissan 300ZX forum - Well yeah, but they're much smaller than stock TBs
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Subject Well yeah, but they're much smaller than stock TBs
Posted by BlackholeZ on May 11, 2018 at 9:02 PM
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In Reply To It will limit power posted by induetime on May 11, 2018 at 01:54 PM
Message So no, stock throttle bodies do not limit power. The restrictors for most racing classes are much smaller than our throttle bodies. Last ALMS race I was at the prototypes had 2 ~1" restrictors. WRC cars have a single ~38mm. FSAE cars make almost 100hp on a 20mm restrictor. We've got 2 52mm throttle bodies. EACH ONE has more than 6 times the flow area.

The other thing to consider is all the other things in the system that are limiting flow more than the throttle bodies.


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