Skip to main content
Gerry | Vanagon
Checking account...
← vanagon.com home · Continue the discussion in the forum
Subject:Re: While Talking About Fuel
From:Don Hanson
Date:Fri, 18 Jun 2010 10:07:18 -0700

Real numbers from some dyno runs..

  91 Porsche GT 6.5 liter V8 stroker motor.

  With normal premium fuel  (92 octane) it ran at 414rwhp
  With race gas..unleaded 102 octane we got 434 from it, same day, same
dyno.
Don Hanson

On Fri, Jun 18, 2010 at 9:48 AM, Mark Tuovinen <aksyncronaut@gmail.com>wrote:

> The consensus is regular 87 octane but for the sake of discussion I will
> share what the late Bob Donalds suggested when I inquired with him once.
> For cooler weather and light loads 87 octane and fully loaded trips in
> hot(Summer) weather Premium which around here is 91 octane.  I do not have
> enough knowledge on the subject to declare either way, just sharing what
> Bob
> recommended.  I do know that the baseline gasoline is the same no matter
> what name is on the sign and that it is the additive package that makes it
> different.
>
> Mark in AK
>
> On Thu, Jun 17, 2010 at 10:03 AM, Loren Busch <starwagen@gmail.com> wrote:
>
> > So while we are talking about additives like Techron, what gas are you
> > burning in your stock WBXs?  Regular, Mid Grade, or Premium? Ignore brand
> > names please.
> >
>