LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

cam for LT4 heads/intake

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Old Jul 21, 2007 | 08:47 PM
  #1  
maro z28's Avatar
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cam for LT4 heads/intake

With mods in sig and some drag radials, my car did a 12.2 in the 1/4. I'm looking for a cam to replace my hotcam. I'd like to get to high to mid 11s. I'd like power by 6200. This is not a dd, but would like a little lope as possible while still accomplishing my goals. Can anyone with similar mods and track results post up or even pm me their cam specs @.050? Off the shelf or custom grinds make no difference. I'd like to get cam reccommendations from Joe O or Bret, but that won't happen. I paid Pat G for his cam reccommendation already. Just looking to weigh ALL of my options. Thanks!
Old Jul 21, 2007 | 09:00 PM
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Do you want the power to beak at 6200 or do you want to shift at 6200?
Old Jul 21, 2007 | 09:45 PM
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Power peak at 6200. This will most likely be on a stock bottom end.
Old Jul 22, 2007 | 01:35 PM
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so power peak at 6200 meaning you'll shift at lets say ~6500?

Then I would say something like a 503 or maybe a LPE cam. Maybe even something smaller like a crane 227 since your heads seem to be pretty good. The hotcam just seems to be lopey cam to me. There are a lot more cams out there that are better. Just my .02.
Old Jul 22, 2007 | 02:08 PM
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Send your heads and intake to AI for additional work an appropriately matched cam. Then add long tubes.

If you're on a budget, just get a cam recommendation from a competant cam selector and put on long tubes.
Old Jul 22, 2007 | 04:16 PM
  #6  
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Originally Posted by Built LT1
Send your heads and intake to AI for additional work an appropriately matched cam. Then add long tubes.

If you're on a budget, just get a cam recommendation from a competant cam selector and put on long tubes.
huh? Mods in sig. I have long tubes. Thanks for your time, but I'm looking for actual cam reccommendations. Not "get a cam recommendation from a competent cam selector" That really tells me nothing. Sorry if this seems harsh. It just seems that no one is willing to share any cam info these days. Like its some big military secret or something.

Also, maybe I have the terminology screwed up, but I don't want to rev the engine past 6200. So, to work with my tc, gears and rev limits, I'm looking for a cam in the peak operating range of 3500-6200.

Last edited by maro z28; Jul 22, 2007 at 04:18 PM.
Old Jul 22, 2007 | 04:41 PM
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lingenfelter.com
219/219 560/560
you'll run a lot better than most big-cammed cars

or the crane 227 will also get you there too
Old Jul 22, 2007 | 07:09 PM
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Originally Posted by reamo04
lingenfelter.com
219/219 560/560
That cam is designed to work more with the super ram/TPI intakes whereas the 211/219 .533/.560(1.6 rockers)/112 is more for the LT1/mini-ram intakes.

I would suggest the LPE cam as well. I had the 211/219 and shifted at 6200rpm. I believe my peak was 5900rpm. You may have to use a smaller stall and gear down to 3.42's with this cam however. The 3.73's may take you past your peak which would slow you down. Can't guarantee you it'd get you into the 11's, but I think it'll change your 60' dramatically. The other thing is this cam has a smooth idle so not sure if that suits you or not.
My M6 car with this cam with LPE LT4 ported heads/intake did a 12.0 @ 115. Car is 3750, 3.73 gears, LT's and ORY. I'm thinking if I would've had an auto w/ a 2800 stall it would've easily been an 11sec. pass.

What was your mph? Where does the LT4 hotcam peak on your engine?
Old Jul 22, 2007 | 07:19 PM
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Originally Posted by SS RRR
That cam is designed to work more with the super ram/TPI intakes whereas the 211/219 .533/.560(1.6 rockers)/112 is more for the LT1/mini-ram intakes.

I would suggest the LPE cam as well. I had the 211/219 and shifted at 6200rpm. I believe my peak was 5900rpm. You may have to use a smaller stall and gear down to 3.42's with this cam however. The 3.73's may take you past your peak which would slow you down. Can't guarantee you it'd get you into the 11's, but I think it'll change your 60' dramatically. The other thing is this cam has a smooth idle so not sure if that suits you or not.
My M6 car with this cam with LPE LT4 ported heads/intake did a 12.0 @ 115. Car is 3750, 3.73 gears, LT's and ORY. I'm thinking if I would've had an auto w/ a 2800 stall it would've easily been an 11sec. pass.

What was your mph? Where does the LT4 hotcam peak on your engine?
ABA383 ran the 211/219 and loved it, and i have called LPE and they said the 219/219 will still work excellent with the LT1.
Old Jul 22, 2007 | 08:21 PM
  #10  
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Originally Posted by maro z28
It just seems that no one is willing to share any cam info these days. Like its some big military secret or something.
its not that its a secret, its that there are so many options along with custom grinds its usually better to talk to someone that will match a cam to do exactly what you want
Old Jul 22, 2007 | 10:10 PM
  #11  
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Originally Posted by reamo04
ABA383 ran the 211/219 and loved it, and i have called LPE and they said the 219/219 will still work excellent with the LT1.
I'm sure it will, but the point is the 211/219 is more accomodating for the mini-ram than the 219/219. Better results will be had with the 211/219 w/ a mini-ram style intake. Trust me... the LPE sales staff are about as qualified as a Wal-Mart greeter. Tim (if he's still there) is the only one who knows a decent amount.

Last edited by SS RRR; Jul 22, 2007 at 10:12 PM.
Old Jul 23, 2007 | 11:50 AM
  #12  
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Those cams are smaller than the hotcam I have now. Why spend thousands of $$ to go smaller? If 11s are a ?(I've run 12.2 with what I have now) why would I even swap?
Old Jul 23, 2007 | 12:32 PM
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Originally Posted by maro z28
Those cams are smaller than the hotcam I have now. Why spend thousands of $$ to go smaller? If 11s are a ?(I've run 12.2 with what I have now) why would I even swap?
because you can go mid 11's with either LPE cam, or the crane 227
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