Re: [DMCForum] Turbo Bosch X-Jet?
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Re: [DMCForum] Turbo Bosch X-Jet?



Hi Dave

Yes - but that's my point - they all boost through the throttle plate so
the calibrtion will be a mile out. If I were you, I'd stick with the
stock 066cpr and hook up the front port to the manifold and the rear
port to the throttle port. In my tests, I worked out that having a
higher pressur ein the rear port than in the front port makes no
difference, but having higher at the front than the rear, as it does for
a short time on the stock engine, continues working into the boost range
- or 5psi on my friend's Island setup. Unfortunately it works too well
and he gets about 100miles to the tank even though he also gets a lot
more power. I've been toying with applying a restricted bleed-off to
that port so that we can manually set the pressure seen by it and lower
the effect it has. It's a real shame the J&S controller's no longer
available.

You're on the right track with the later PRV's. Certainly all the
renault lumps after the turbo came into being all use the same
strengthened bottom end - even the 24 valver which is why my friend with
the Alpine Atmo is supercharging a 24v for it...

Martin

Dave Stragand wrote:

>
>
> The Porsche & Lotus turbos that used Bosch CIS must have had some way to
> effectively manage the turbo fuel requirements under boost, correct? 
> To not
> reinvent the wheel, that's what I'm currently investigating grafting into
> place.
>
> -Dave




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