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Re: [GMCnet] Gas Prices- At What Point Do You Park It? [message #116566 is a reply to message #116557] Fri, 25 February 2011 19:10 Go to previous messageGo to previous message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma:
Senior Member
John,

Got it!

So you're going to take an engine with a power band designed for a six speed
transmission and hook it to a three speed trans. I would suggest you get a
copy of the engines torque curve and see how it lines up with the TH-425
gear ratios and shift points.

By the way Dave Lenzi spent a huge amount of time (the number three hundred
hours comes to mind) reprogramming the electronic engine control system for
the Vortec 8.1. He had to fool it into thinking it was still in a Chevy
Truck. I suspect you may be up for the same task.

I laude your efforts in finding this engine but from where I sit adapting it
to the GMC is in the too hard / too costly basket.

Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426


-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of jhb1
Sent: Saturday, February 26, 2011 11:34 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Gas Prices- At What Point Do You Park It?

Not to confuse you I mean to adapt to the current 425 transmission and the
final drive we have now with a 3.70 ratio from JimK

John H. Bell
77 Royale
Montreal Qc.

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
 
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