Geoff's pulls are the Blue ones, mine are in Red.
7670 is 1.05A/R External, 8374 is .92A/R IWG


Geoff's 2.0L 8374 on 91 pump vs. R/TErnie's 2.2L 7670 on 92 pump
3rd GEAR


Geoff's 2.0L 8374 on Race gas vs. R/TErnie's 2.2L 7670 on E85
3rd GEAR


Geoff's 2.0L 8374 on Race gas vs. R/TErnie's 2.2L 7670 on E85
4th GEAR

 

how many miles do you have on your turbo?

 

thanks for posting the dyno comparison eric - it may also be worth noting my 8374 has 0.92 a/r internal WG and your 7670 has 1.05 a/r external WG

 

Both are twin scroll? What boost were all of those at?

 

mine was 18psi on 92 oct.
25psi in 3rd
spike to 34psi settle to 25 in 4th

I forget what Geoff was running, but I don't think he was running much more boost than I was.

 

are you concerned about reliability Jerry?
We (E&H Motors) received one of the first 7670 external wastegate turbo's after BW's "revision", and that car has been absolutely hammered on the track and the dyno. It's going well, and the owner (Carl Ruiterman) absolutely loves it!
Even more fun with the 6 speed sequential

 

I'll be hitting the dyno soon so we will have more graphs to over lay. Mine is a 2.0, it will be on E85 or E-98 if I can find some.

 

and at altitude

 

Very nice results!

 

Any updates on availability

 

November???

 

Talx,
what turbo are you waiting for?

 

yes very much so. It seemed all the initial results were riddled with turbo failure. some had multiple failures.

 

good to hear that! That's exactly what I am going to do. Turbo won't be seeing more than 25psi though.

 

I have a 1000 miles on mine. Peak recorded boost pressure (per map limit) was 390kpa. I'll be out autocrossing the weekend... drag racing next weekend.