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Re: H&H actually used a stroked 4.0 V8 - 4.4 ( (archive)

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Posted by STT on July 07, 2000 at 09:08:54:

In Reply to: H&H actually used a stroked 4.0 V8 - 4.4 (more) posted by Hans on July 07, 2000 at 08:56:30:

: Re. and they all, H&H, MK and G Power, use Rotrex turbine chargers with 9 psi air/liquid aftercoolled boost. All three engines are rated at 450hp/460lb/ft.

: Not to nit pick but H&H used a stroked 4.0 litre v8, stroked to 4.4 litres in their E36 utilizing a Vortech V1 trim supercharger. No intercooling. 450hp and 421 lb/ft torque. MK used a vortech S1 trim blower as well in their 540i kit and produce 430hp in the 540i 6spd and 390hp in the 540ia. Still not intercooling. The Gpower system does use a triple K supercharger and I would guess that you are right that there is some type of inter/aftercooling to keep charge temp. down.

Well, I have MK hardware and it is Rotrex (KKK turbine compressor side, NO OFFENCE TO MINORITIES, IT IS THE NAME OF THE COMPRESSOR). I also have two pullies - one for 7.5 psi boost and another for 9 psi boost.

With 7.5 boost on Vortech POS with 70% adiabatic efficiency and no aftercooling you can hardly get over 410 hp on pump gas.


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