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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, 10:29 AM   #21
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The above PCM wouldn't even properly control a 92/92 L67, much less a 94/95. Let alone a 4T65E trans.

And why would you LOWER compression to RAISE boost? You would have gained more going the OTHER way. I very nearly did that last year. You want compression and timing before you want more boost.

I'm really at a loss to figure out what you're trying to do here.
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Old 12-27-2007, 12:21 PM   #22
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I think we should at least give this guy a little room to breathe..

It sounds like he stuffed some 65 guts into a 60 case. Thats been done before.
A L27 pcm could run a S1 L67 but obviously not as well as the original pcm..
Hogging out the combustion chamber in the head will lower compression (and unshroud the valves) in addition to the thicker headgaskets. Lowering the compression with an m62 isn't really the best thing to do but neither is it with a m90 and people do that..
Who cares if he bought extra parts that he didn't need? If he'* never on a computer he won't really know what fails first etc.
He painted his blower.. Not a good idea but it'* also no the first time someone has done it..

Alot of the stuff seems b.sey. But I don't think he'* even getting a fair shot.
I'd be pissed too if I didn't frequent that much and had a bunch of people calling me a poser etc. in a thread I can't even post in anymore.. And if he dosen't frequent that much, maybe that'* why some of the previous questions in past threads never got answered..

I'm not saying I believe everything this guy is saying, but damn, turn the heat down cause all your gonna get is heat back.
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Old 12-27-2007, 12:34 PM   #23
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Old 12-27-2007, 12:56 PM   #24
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I would laugh too!

Quote:
by the way a 4t60 E is the exact same as a 4t65E
i mearyl swaped only my gears into it, ad a stall and a stage 3 shift kit and some power and you to may be able burn them upon entering the 2nd gear
no pcm change is needed since the gearinhg is still the same
No, they aren't the exact same. They're VERY different, particularly in the way the PCM controls them.

You swapped your 4T60 gears into the 65? That'* what I read. And the fact that you have a 'stage 3' shift kit tells me you certainly do (at least think you have) have a 4T65E running off a 91/92 L27 PCM, which is impossible, and I'm not talking about shift points.

So to clear this up, he didn't swap 65 parts into the 60, he did it the other way around. Mike, I agree with you that we're being pretty harsh, but it'* been pretty mellow up until now. He'* been given ample opportunity to answer the questions raised, and has made no attempt to do so. Far too much of what he'* posted he is either very misinformed about (someone else built it and he doesn't understand?) or he'* trying something he thinks will work, and it won't.

I'd like to know more about those rockers and crank. I still don't understand why the heads were ported with the valvetrain still installed.
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Old 12-27-2007, 02:57 PM   #25
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All I know is that I'd like to see more of this. More of the port work(I like that stuff). Even with a lot of mismatched information about what is going on here, I will give the benefit of the doubt and look forward to knowing the full details on how, why, and WTF.
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Old 12-27-2007, 03:30 PM   #26
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I agree with Mike we all need to easy up on oldsrocket a little.

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Originally Posted by willwren
I still don't understand why the heads were ported with the valve train still installed.
I see pictures of heads installed on a block & then a picture of what looks like a head off the car with the valve train attached. I don't see anything that would make me think it was ported with the valve train attached.


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Old 12-27-2007, 03:48 PM   #27
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Ed, look at that pic of the exhaust side of the cylinder head. I can clearly see massive amounts of iron shavings stuck to the ports by cutting lubricant. I know exactly what it looks like from experience. If you look closely, you can see the buildup, and also see the valvetrain (including rocker arms, springs, valves, etc) are still installed on that cylinder head.
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Old 12-27-2007, 03:59 PM   #28
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not that it really matters, but i obviously have my doubts on the kr.


but that aside, i must say that the engine and blower look awesome. even if it doesn't perform well for heat dissipation, it does look really cool. so good job on that.
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Old 12-27-2007, 06:12 PM   #29
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I'm looking at that motor and what it came out of.. The motor in the Pic is a G Body... From what I can gather he used an L27 engine and built it up... The car in the pic I will bet is the Tornado 1992 L27 with a 4T60-E.. Most likely where both the PCM and MEM Cal came from..

Now did he use the L67 Rods? and wrist pins?


How about a Pic of the 94 SSEi, and a little more detail about how you built the engine...Like the custom cam grind, The lowered compression and the like...

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Old 12-27-2007, 07:41 PM   #30
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Anybody else notice the valve covers? That was the first thing I noticed on that motor, other than the whole Darth Vader look.


Kinda makes me wonder how in the h3LL he doesn't have any leaks up there.
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