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2GR-FE Head Analysis

Tony Prodigy

By Tony Prodigy
in Aurion / TRD Aurion Club

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campbeam Grand Master

campbeam

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1 hour ago, Tony Prodigy said:

I found this pretty interesting and thought others may too.

 

Interesting to see the head internal dimensions exposed. Looks like the head is already close to the limits so not much potential. Was he suggesting that larger exhaust valve seals could be fitted? What have I missed or not understood?

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Tony Prodigy Grand Master

Tony Prodigy

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8 hours ago, campbeam said:

Was he suggesting that larger exhaust valve seals could be fitted?

Yes. He mentions this @ 13:16 that there is enough room to go to a bigger seat but not a whole lot of room. So you'd need to be careful.

8 hours ago, campbeam said:

What have I missed or not understood?

Not a whole lot but to say that the 2GR-FE head was nicely designed and care was taken to make sure it worked as efficiently as possible from a manufacturing perspective. Toyota made it thick enough to make it work as intended but not thick enough to add unnecessary weight. But having said that, he did see that there is some potential for porting mainly in the tops and bottoms but not a whole lot in the sides. The water jackets are too close.

You gotta love that surface grinder making mince meat of that aluminium. :thumbsup:

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