Individual vs Single Throttle Bodies

[gixer]

on a test between an SR20DET from an s14 and an SR20DET from a GTiR, we found that with the single throttle, 50% throttle didn't mean 50% power while the the ITB's of the GTiR were very close 50% throttle was about 50% throttle etc etc

[gixer]

The above test was on an engine dyno.

[Mr Ed]

50% throttle was about 50% throttle etc etc

That sounds remarkably similar to my throttle too.........funnily enough, on my motor 50% revs was about 50% revs too!

/ENDSILLYNESS

[KGB]

I don't remember saying it was good gains for dollars From a peak power perspective, if the plenum is designed alright, and the TB isn't a restriction, the power should be the same regardless. There obviously is some benefit to a well setup multi-throttle turbo engine in circuit racing, otherwise Nissan wouldn't have bothered to spend the coin on the GTR Skyline and the GTi-R Pulsar, both made for racing, and for the aforementioned reason, it's most likely response....but ONLY when setup correctly

Well said hehe ...with the GTR & GTI-R i suspect it was a on paper engineer thing looks good
but in the real world ending up a pain in ass for little gain & turbo technology was lacking in the area of response back in those days .... my take on things ....

Keith:

[JustCallMeOrlando]

Ahh, but this was racing. There was only little gain, BUT there was gain They wouldnt have spent the money cos it looks good.