Quote:
Originally Posted by gogomobil
Why not simply use a K27 7006 turbo?
Better than the 7200, fully compatible and will not loose its punch after 5500rpm.
Should be good for around 400hp.
I want to replace my 7200 and I think I will go the 7006 route.
A turbocar should not feel like a N/A car IMHO, thats why I don't like the HF turbos.
I like the way the 7200 kicks in, but sadly it gets weaker after 5500rpm.
After getting used to the power the 7006 delivers I might switch to a BB Garrett turbo which is more complicated to install, maybe.
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That is a great track turbo. Andial and Porsche used in on there 92 C2 race car.
I believe the 7006 is basically a K27-7200 compressor with a larger hot housing and builds less back pressure in the exhaust manifold. Full boost comes in on a 930 more like 35-3600 rpm than the 3200 if i remember but holds better to red line. For over 400hp one can benefit from a bigger compressor wheel which is the K29 and HF's bread and butter. Put a K27-7006 hot side with a bigger compressor wheel and you have a monster track turbo.
If you can make a 930 breath more easialy with cams, porting, and low restriction exhaust one can just about stretch the K27-7200 to 400hp some have clamed but boost will fall off which is ok if you do not have a good fueling strategy. 360-380 is more like it if I remember correctly.
I defer to the experts.