[s-cars] MTM issues, etc.

[Dave Burig]

OK, so is it too late to get in on the MTM GP?
Air conditioner be damned!

Dave "If you go fast enough, who needs AC?" Burig

-----Original Message-----
From: s-car-list-admin at audifans.com
[mailto:s-car-list-admin at audifans.com]On Behalf Of Paul Krasusky
Sent: Thursday, July 18, 2002 3:19 PM
To: 's-car-list'
Subject: [s-cars] MTM issues, etc.


Hey Ed!  Great to hear you're enjoying your new 'toy'....

Hmmm...  must say, some of what you're experiencing I too believe happens to
my '95.  I had posted a while back about that with no response, the needle
fluttering @ 22 psi, etc.  Though, I don't get the 'kicked goose' sound,
that sounds more BPV related I'd think.  I was told the flutter (and
associated noise) was the WG bleeding off pressure.

I am VERY curious to hear the opinion on THAT matter.  Should we screw down
the spring a few turns?  Any negative ramifications?  Any thoughts on this
greatly appreciated...

As you've seen from my, er, 3x occurrences, blowing hoses came RIGHT after
MTM install.  Good thing Samco GP is not far away.  I 'think' it's too late
to get in on this one though.  I'd either start another or just buy your
own.  Guaranteed to fail my friend!  Hope not!

-Paul K.
CT
'95 //S6 NOT sounding like a goosefart as it's kicked
'58 TR3A resurrected from storage this week!  Whoo hooo!


--original message--
Date: Thu, 18 Jul 2002 05:22:41 -0700 (PDT)
From: Ed Walsh <rundeep_32 at yahoo.com>
To: s-car-list at audifans.com
Subject: [s-cars] GP   MTM 1+ report

I could break out the dictionary and throw down some
of the longest adjectives available for the new
performance of my S4... but that wouldn=92t be doing the
upgrade any justice...  The car is now PHAT!  I really
see how easy it is for you big-mod guys to justify
spending more and more and more!  Simply intoxicating.

A couple of comments:

- When I received the ECU from Hoppen (with cool red
MTM sticker in the box), I noticed they sent along a
plastic wrapped card.  On one side of the card, there
is a picture of the intake plumbing.  Highlighted are
the crossover/intercooler hose and the turbo/crossover
hose.  A note recommends their replacement with Samco
hoses.

Q:  Is it too late to get on the Samco GP?

- On the other side of the same card, there is a
picture of the wastegate with instructions to pull off
the cap and turn down the wastegate screw by 6
revolutions. ??? I thought the list consensus was that
this was taboo?  I think I am going to do it for 2
reasons.  1) I think Hoppen/MTM wouldn=92t recommend it
unless it was needed with the upgrade.  2) When I am
at max boost, the boost gauge flutters rapidly (10
cycles a second) around the 22-PSI mark.  The boost
flutter is not a sensation felt on the butt dyno, just
seen on the gauge.  My thought is the wastegate, at
its stock spring preload, can=92t handle the extra PSI.

Q:  Will turning down the screw reduce/eliminate the
boost flutter?

- Finally, at MTM=92s higher boost levels, the intake
track really makes a weird noise.  The steady sound
emanates from the intercooler area and sounds like a
kicked goose or a dull dentist drill.  Hard to
describe.

Q:  Is that sound from a hi-pressure only leak in the
xover/intercooler hose?  My old 92 w/MTM 1+ (with
screwed down w/g) didn=92t do this.  Could a leak in the
hose account for the boost fluttering as mentioned
above?

Thanks again to Chris for putting this all together!

Ed

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