| Re: [GMCnet] Possible engine and transmission [message #111348] |
Sat, 08 January 2011 15:20  |
Gary Casey
Messages: 448
Registered: September 2009
Karma:
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Senior Member |
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Interesting. I didn't know some of the Northstar Cadillacs were rear wheel
drive. I have a friend that was involved in the design - I think they did a
reasonable job, but certainly not as good as it could have been. It was about
that time that GM management came to the conclusion that for a V-type engine a
2-valve pushrod version was best. My friend said, "give me the money that the
4-valve engine costs and I'll put every high-tech gadget available on a 2-valve
engine and I'll give you an engine that is still cheaper and will be lighter,
more compact, more powerful, quieter and give better fuel economy than the
4-valve. He went on to spearhead the LS engine development. I think he was
right. He said that the Cadillac got the 4-valve engine only because the Lexii
and Mercs had them and the customers counted the valves before buying. More is
better, I guess. So what holds the record lap time at the Nurburgring for
4-door cars? The CTS-V with a pushrod V8. I don't think they have a problem
selling the CTS-V even when it is missing 16 valves :-)
Gary Casey
Bob de Kruyff wrote on Sat, 08 January 2011 07:07
> Harry wrote on Fri, 07 January 2011 19:50
> > Northstar engines are sideways. They are not good engines. Most of them need
>lots of work after 100,000 miles. It is a modular block and they leak. The
>starter is under the intake manifold.
>
>
>
> They are transverse or fore-aft depending on the car. The redo around 2008 made
>a lot of improvements esp for leaks. You're right about the starter.
OOps--the redo was 1998 not 2008
--
Bob de Kruyff
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