Welen XLR8 Performance skrev:t04z is a 67mm arret turbo right? Have you seen the boys in us makes with the airwerks stuff now days?? almost 1000hp out of a 67mm turbo.. I guess garret are way behind now.. I used to pick garrets myself because of their quality but the roumors I here is that it is going down hill when they moved the manufacturing to mexico or if it was brazil. For my own car I would checkout precision and airwerks with t4 divided exhaust housing and double wastegates but for customers I would still rekomend garret because of the quality.. I would love to try the precision 62 62 ball beraing with the divided exhaust housing and dual wastegates on a street engine.. That would be a killer..
Sorry about the term t04z, it is the non BB t67H.O.
Well The Airwerkes does not make any 700whp turbo that is in a t3 form just yet by what I have seen.
The pressicion unit I feel it is a Us bandwagonstyle turbo, want to see some more R&D on it before trying it out. Im not building engines by what other say works, I build them stricktly by calculations, I try to fit parts that work together, not the biggest of what I can find or the most hot part on the marked. an exaple is the mild In-tec stg 1 cam I made for small a/r , small turbine weel turbos with a bit backpressure, anti reversation valvseats and stepped intake..
That want to produce power past 9000. and gave a tremendus powerband with the t60-1 unit.
The T67 was chosen off compressor map calculations.
VE vs Displacement VS boostpressure vs powerband, calculation and the initial sweetspot/most effiecent area of the turbo. I found that the T67 H.O is one of the most effiecient and cost effective setup before staging to the T4 divided setup.(if so I would choose the Airwerkes over the garret)
The car is beeing dynoed monday or tuesday, last setup did 520whp(570-580hp) at 14psi boost and I will make a overlay with the T67, also going to elaborate with a new custom camsetup Ive been developing.. the daughter company Merketmotor are now grinding cams off blank cores at my specs.
The old cam was a In-tec stg1 turbo cam, I will call this the stage 3. based off the big turbine weel and the .82a/r the lobes are slightly larger both primary and secondary lobes than the stage 1, also the primary are setup to produce way more exhaust so I can build boost earlier to compansate for the poorer response of the T67 unit...
Ill be back with results..
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Mapper, porter, hjulvinkler, girkasseoppbygging, cornerweighting.
vi har 4wd dynapac in house
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Mvh
Andreas T. Fjeldstad
[i]In-tec motorsport Norge[/i]
