SiV6Qcoupe

Just wanted to hear a few peoples thoughts on the subject of a supercharger conversion on a 12V V6 but without modifiying the ECU. Instead of electronicaly controlling boost, fuel pressure would be controlled via a rising rate fuel regulator which would use the air intake pressure to vary fuel to the injectors. The ECU would operate normally supplying normal amounts of fuel only supplemented via the additional fuel regulator.
The drawbacks being boost would be restricted to no more than 7psi resulting in hp figures not exceeding 250hp.
Has anybody considered this as a viable alternative to tackling the troublesome Hitachi ECU conversion?

Thanks for your interest.

Bjowett

I did a similar system on my 93 Corrado VR6. I opted for a Haltech ad. injector control unit. The F5 fires up to 4 (I run 2) ad on injectors under boost. A good system.

BTW, I have a spare Vortech supercharger forsale if you are looking. $900 shipped.

Brian

Kevin K2

I've posted on this a few times (search for Vortech). I think 230-240 hp is possible with $3000 in parts, mabe $3500 vendor kit. SHO has a similar kit, see link. Cathleen said demand does not justify expense of development.

I think fuel can be handled as you described, but the rrfpr may tax the pump in a 4 bar system. RRFPR with larger injectors would work, with base set to about 2.5-3 bar to keep closed loop about the same. Instead of rrfpr, the ARC1 amm signal conditioner could be used for more finesse.

MSD could be talked into a crank triggered timing boost-retard molule, similar to the one for miatas.

Problem is finding room and making bracket for the compact type-5 vortech unit. They have dimensions on there site...looks like it would be into right headlight.

Another path is a single bank turbo, like saab did, driven by 3 cyl's and pressurizing all 6. Good for mabe 4-5 psi, and a much easier install than a regular turbo.<ul><li><a href="http://www.shoshop.com/">SHO Vortech Kit</a></li></ul>

RangeR BoB

What kindof vortech blower do you have? Condition/application etc.