1.9" Pulley - Page 4 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 12-27-2007, 07:55 PM   #31
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I and that bolt sticking out of the valve cover... Look to be an 88-89 LN3 Valve cover... They were aluminum...

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Old 12-27-2007, 08:44 PM   #32
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No...I think those are S2 L67 covers. Injector boss cutouts give it away

That there motor looks to be a member of the Heinz 57 club (mine included).
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Old 12-27-2007, 09:26 PM   #33
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Quote:
Originally Posted by sandrock
No...I think those are S2 L67 covers. Injector boss cutouts give it away
I don't see injector cutouts?
There would be 3 more indents in the top that aren't there.
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Old 12-27-2007, 10:07 PM   #34
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(......)

I retract my previous statement.I had a brainfart. Y'gotta excuse me...been inhaling brake cleaner and leftover R134a in the shoparage.

Yes, that is a word I just came up with.
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Old 12-27-2007, 10:07 PM   #35
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I have many doubts on the build just like most others here, but putting all of that aside, this is the question I have.

How efficient is the M62 with a 1.9" pulley? Without the data in front of my face, I have a feeling that it is taking more power to spin it than it is making up with the rpm...but I could be wrong... The same reason why I make more power on a 2.55 pulley with my M90 than with a 2.45, even though I get no KR on either.
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Old 12-27-2007, 10:24 PM   #36
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Very good observation, Shawn. And you're dead on. The only way (regardless of all the claimed work) he'd be able to go that small is if he were intercooled, and the closest (and only car) to that is in my driveway.

Fully ported, I see no improvement going from a 2.2" to a 2". KR or not (neither do on my current setup), there'* still no more power, as it'* creating more heat to rob what power might have been produced.

Intercool, and it'* yours. Don't, and you just lost power.
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Old 12-27-2007, 10:32 PM   #37
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Old 12-27-2007, 10:41 PM   #38
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DR, there'* too much BS, and he was treated pretty fairly early on. His refusal to answer our questions makes it a little harder to swallow the pills he'* pushing. Some of what he claims is purely impossible. He'* either misinformed by whoever he hired to do the work, or he'* BS'ing.

That'* it in black and white.
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Old 12-30-2007, 08:25 PM   #39
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Most of us know that painting the SC is a big no-no, but DAMN! That engine looks good, IMO. Maybe I can achieve a similar effect with Wilren'* special sauce. :P

To the original poster: I too have been working in a garage for years. Not 20 years, only about half that long, but I know my way around a car. Trust me, most of the people here aren't "computer kids." I thought so too when I first came here and some of these guys, the same people who are giving you constructive criticism, criticised my ideas. There'* a lot to be learned here, even for you and me. I too would like to see some more pictures of the porting job on the heads. It'* cool that you've gone so far with a series 1, really cool. But please give us more information.
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Old 12-30-2007, 10:15 PM   #40
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DS, there are very detailed pics of my porting on the Heads already posted from last off-season.

Painting the entire engine AFTER all the parts have been bolted on is a big no-no, in spite of being incorrect. You paint over all the gasket transitions. It'* obvious that'* what he did, and he ended up trapping heat in the water pump and other accessories. Not only that, but he painted the interface where the water pump pulley mounts. One removal and replacement of that pulley will put it out of true rotation with paint chips. There are alot of corners that weren't only cut, but totally ignored. I suspect the toipic author isn't actually doing the work, and that he'* been misled by his builder.

The 65E won't even come close to half-*** operation on his L27 PCM. There was also alot of money wasted on parts that weren't necessary. That money could have been saved or better spent elsewhere. This is why it'* important to post your ideas and plans before moving forward. Chances are, there'* at least one person out there with something good to contribute that you haven't thought of.
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