[s-cars] "Negative Boost", Oh yes Martha its that dreaded subject once again

[Jared Robinson]

teastrainer and panty hose... always worked for me ;)

On Tue, Oct 5, 2010 at 12:03 PM, Hap Maguire <captmagu at gmail.com> wrote:

> Cody
>
> That's exactly what I'm now running. It should be noted that Tufty wanted
> to install the BMC CDA airbox filter and I rejected this. Foolish on my
> part. Oh well. The reason for this post is so we can all learn from success
> as well as failure. In this case, rather dramatic failure.
>
> Hap. wit dakine admission not from Evahboost, Maguire
> On Oct 5, 2010, at 8:59 AM, John Cody Forbes wrote:
>
> > HKS Super Mega Flow Reloaded. Yeah, a stupid name, but a great filter.
> 034 dyno tested one to something like 600whp with minimal vacuum between the
> turbo and filter.
> >
> > Cone filters, indeed all K&N style filters, take huge amounts of surface
> area to flow properly. On K&N's website you'll find a filter area calculator
> which will show you that that tiny filter you were running is good for like
> 300bhp.
> >
> > -Cody (mobile)
> >
> > On Oct 5, 2010, at 8:23 AM, Joe Pizzimenti <joe.pizzimenti at gmail.com>
> wrote:
> >
> >> Have you tried a K&N?
> >>
> >> Or chicken wire, for that matter?  :)
> >>
> >> On Mon, Oct 4, 2010 at 9:30 PM, Hap Maguire <captmagu at gmail.com> wrote:
> >>
> >>> S-Heads
> >>>
> >>> A sporadic boost issue has been driving Tufty Jones, Brendan Rudak and
> >>> yours truly very crazy for the last several months. Last week Brendan
> and I
> >>> set about logging runs on da computer to see if there was a software
> issue
> >>> and everything checked out perfectly. We even tried swapping out the
> Tial
> >>> 44mm wastegate for a plug and play Turbosmart WG with a minor change
> >>> invloving a slightly laggier but still inconsistent boost between 10-15
> lbs
> >>> due to a 7 lb vs 1 bar spring in the Turbosmart WG. Tufty and I finally
> >>> decided to do an intake tract leak check even though we knew it
> couldn't be
> >>> that as this car has basically a full hard pipe tract with the only
> silicon
> >>> pieces at the joints for engine flex. This would also eliminate the BOV
> as a
> >>> potential source. Well as the pressure built upwards of 30 lbs the only
> leak
> >>> we found was from the test valve. The intake was solid. To do the test
> >>> though, we had to remove the 4" elbow that runs from the air cleaner to
> the
> >>> turbo inlet. As Tufty was scratching his head yet again he took a good
> look
> >>> at the cleaner and Voila, we had found our "Negative Boostie".
> >>>
> >>> As you can see from this inside view, the plastic frame has broken
> down.
> >>> This allowed the cleaner to shrink in on itself as Da BEEG Comp turbo
> >>> literally sucked the life from its veins. You can also see the crease
> lines
> >>> on the outside of the cleaner and visualize what was going on.
> >>>
> >>> http://i935.photobucket.com/albums/ad199/hapster47/a-1-3.jpg
> >>>
> >>> http://i935.photobucket.com/albums/ad199/hapster47/a-3-1.jpg
> >>>
> >>> This air cleaner was mounted to a 4" aluminum pipe that had a 90 degree
> >>> bend and the cleaner just hung from the pipe without touching anything
> else.
> >>> You can just see the pipe here in this shot.
> >>>
> >>> http://i935.photobucket.com/albums/ad199/hapster47/dm-63.jpg
> >>>
> >>> Well mucho thanks to Tufty and Brendan for their continuing help in
> >>> perfecting this beast. Something tells me this is gonna be a long
> story.
> >>> Throughout this all, the car still ran beautifully if somewhat muffled
> >>> because of the cleaner. I gotta see if I can get a refund or do you
> think
> >>> AEM will just laugh???
> >>>
> >>> Hap, wit dakine "Negative Boost" nomoh not(and yes Mr Baloney that's 3
> >>> negatives) from Evahboost, Maguire
> >>> _______________________________________________
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> >>>
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-- 
Jared Robinson