LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Help me choose between two grinds

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Old Jul 19, 2007 | 03:03 PM
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Since you have LE2 Heads, and your a M6 with a 4.10 Gear I Suggest a 236/236 on a 110-112 LSA Using lobe number 3122 (magnum High lift lobe) 1.6 rocker .608 lift OR 1.5 rocker .570. This is saying your using some very Good Valvetrain. If you don't, forget about it. I like to have around .600 lift on street cars with good heads IMO, I am no expert but this cam will make just as much Peak power than the other cams maybe more and have more power under the curve (throughout the powerband).

The LE2 cam from Bret has some pretty good lift on it as well.

Last edited by T/A KID; Jul 19, 2007 at 03:11 PM.
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Old Jul 19, 2007 | 04:15 PM
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Originally Posted by T/A KID
Since you have LE2 Heads, and your a M6 with a 4.10 Gear I Suggest a 236/236 on a 110-112 LSA Using lobe number 3122 (magnum High lift lobe) 1.6 rocker .608 lift OR 1.5 rocker .570. This is saying your using some very Good Valvetrain. If you don't, forget about it. I like to have around .600 lift on street cars with good heads IMO, I am no expert but this cam will make just as much Peak power than the other cams maybe more and have more power under the curve (throughout the powerband).

The LE2 cam from Bret has some pretty good lift on it as well.
He doesn't want to rev his car to 7K....
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Old Jul 19, 2007 | 06:01 PM
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He doesn't want to rev his car to 7K....
Who said anything about reving there car to 7 grand?? With that lobe I would not go over 6300-6400 unless I had really good valvetrain, and even then for a STREET car I wouldn't. You don't have to rev the crap out of a street car if you set it up correctly to make power IMO.
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Old Jul 19, 2007 | 06:05 PM
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the 468 not for stock cubes. not gonna be happy with the results
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Old Jul 19, 2007 | 06:33 PM
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Thanks for the input everyone, I'm going to wait for a day and see if Jay Allen emails me back, if he doesn't I'll go for the 230/236.
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Old Jul 19, 2007 | 06:38 PM
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Originally Posted by T/A KID
Who said anything about reving there car to 7 grand?? With that lobe I would not go over 6300-6400 unless I had really good valvetrain, and even then for a STREET car I wouldn't. You don't have to rev the crap out of a street car if you set it up correctly to make power IMO.
That cam wouldn't even peak by 6300 so shifting at 6300 would be a complete waste, his car would be alot faster with a smaller cam.
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Old Jul 19, 2007 | 06:57 PM
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Deff the XFI 467, same cam im running, I love it and it's not tuned yet, even so it's only died on me at a red light twice, really had a nice lil pull even from a slow 20-roll, and really opened up the car in the mid-range and topend part. I'm very satisfied with it...Im on stock heads though so I can only imagine what it would do for you and those LE2 heads you got...
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Old Jul 19, 2007 | 07:11 PM
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Originally Posted by GreatWhiteZ28
Deff the XFI 467, same cam im running, I love it and it's not tuned yet, even so it's only died on me at a red light twice, really had a nice lil pull even from a slow 20-roll, and really opened up the car in the mid-range and topend part. I'm very satisfied with it...Im on stock heads though so I can only imagine what it would do for you and those LE2 heads you got...
How's the idle? Lopey?
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Old Jul 19, 2007 | 07:12 PM
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i'm running a 230/236 580/580 on a 110.....its going to be fun to drive
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Old Jul 19, 2007 | 07:16 PM
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Originally Posted by urbanhunter44
How's the idle? Lopey?
It's got a nice little lope to it, once it's tuned to idle lower than 1k it will have a really nice lope to it....heard it when it almost died the 1st time it was fired up.....forgot to add gas...
Also, someone on here has a ilde/sound clip of their LT car with this same cam as well...I had a thread awhile back asking about the cam itself and had a few people post up their clips
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Old Jul 19, 2007 | 07:20 PM
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i'll look around for that

thanks
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Old Jul 19, 2007 | 08:07 PM
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That cam wouldn't even peak by 6300 so shifting at 6300 would be a complete waste, his car would be alot faster with a smaller cam.
You know nothing about different Lobes then
Ever heard of a Spintron machine my buddies have access to one at Comp, so I get info most people don't know about.
Not all 236 duration cams are the same, they have different Profiles, ramp rates, etc. The High lift version that i listed above is fast and aggresive meaning you don't have to rev it to the moon to make power.
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Old Jul 19, 2007 | 10:25 PM
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Originally Posted by T/A KID
You know nothing about different Lobes then
Ever heard of a Spintron machine my buddies have access to one at Comp, so I get info most people don't know about.
Not all 236 duration cams are the same, they have different Profiles, ramp rates, etc. The High lift version that i listed above is fast and aggresive meaning you don't have to rev it to the moon to make power.
Why don't you explain how the Spintron fits into this topic.
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Old Jul 19, 2007 | 10:50 PM
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I don't even know what a spintron is
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Old Jul 20, 2007 | 12:50 AM
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Originally Posted by T/A KID
You know nothing about different Lobes then
Ever heard of a Spintron machine my buddies have access to one at Comp, so I get info most people don't know about.
Not all 236 duration cams are the same, they have different Profiles, ramp rates, etc. The High lift version that i listed above is fast and aggresive meaning you don't have to rev it to the moon to make power.
This makes no sense at all. And how exactly would a spintron tell the powercurve of a cam? And yes, you would have to rev that cam to ~7K to take full advantage of it.
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Old Jul 20, 2007 | 02:54 AM
  #36  
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CompCams will make you a cam, they made mine, no problem. They asked me what all my mods were and made me one that would produce the best results. They got it perfect.
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Old Jul 20, 2007 | 12:01 PM
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Originally Posted by urbanhunter44
Yeah, I think they're just busy.


I think i'll go with the 230/236
I think that'sthe best, my 233/239 isn't much bigger and I shift at 6650 if that gives you any idea. I'm on stock heads, your heads actually breathe, lol
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Old Jul 20, 2007 | 12:48 PM
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Originally Posted by speed_demon24
This makes no sense at all. And how exactly would a spintron tell the powercurve of a cam? And yes, you would have to rev that cam to ~7K to take full advantage of it.
Not true, as I've said before, and I have a dyno graph to prove it, but oh well...
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Old Jul 20, 2007 | 03:16 PM
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The 467 will be great for your set up,i have a friend who put 402whp LE2 heads & xfi 467 very nice sound too.
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Old Jul 20, 2007 | 03:35 PM
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Why don't you explain how the Spintron fits into this topic
A Spintron Machine basically measures the movement of a engines valvetrain, what I am saying is with the aggresiveness of the cam I chose, you would not have to rev it to 7,000.
The XFI lobes are pretty aggresive but the High lift XE 3100 lobes and the High lift magnum Lobes have more lift per degree of duration than the XFI lobes even and most of them peak by 6500, hence why I said around 6300-6400 for my selected camshaft.

This makes no sense at all. And how exactly would a spintron tell the powercurve of a cam
It tells the stabability of the valvetrain, keeping the valvetrain stable is the most important thing in valvetrain and cam discussion.

And yes, you would have to rev that cam to ~7K to take full advantage of it.
Maybe a Slow profile camshaft like a Low lift magnum cam (like the CC306 you guys like so much).
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