Do you have some Dyno sheet with 6266 and 6766?

What are the spool difference with same AR? 1000rpm?

 

The XX66 turbine wheel is a bit too new for anyone to have such a comparison, for a given engine. Engine size, rpm, A/R all play a factor.

Give until next Spring here in the U.S... then you'll find some results to compare to. Suffice it to say, its for those that want over 500whp on a lower amount of boost for the 6766 and is for drag racing only, really.. not too much street use.

 

I've yet to see any numbers from a 6766... I figured we'd see something by now

 

give me a month ill post some

 

search google. i found a 6766 vs 6765 on evo and supra. the 66 wheel is making 80+ whp more.

on the supra, they compared a 6266 to a 6765 as well. the 6266 had a fatter powerband and made more power up top

 

That's not really because of the exhaust wheel. There's a bit more to it, including but not limited to the amount of boost pressure used per range. Its hard to do "back to back" to jump to such a conclusion.

Just be patient, people, real results will come soon.

 

i found a few shops that had done dyno comparisons... generally the new turbos made 30-50hp more once spooled at the same level of boost... STM had comparisons using an EVO VIII