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those with lt4 hot cam

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Old Mar 23, 2003 | 04:47 PM
  #1  
c4boom's Avatar
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From: concord New Hampshire
Car: 87 iroc and 88 k2500 tbi truck
Engine: l98 and lo5
Transmission: 700 r4's babby
those with lt4 hot cam

how lummpy is it and what is your idel set to. on top of that what do you get for mpg
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Old Mar 23, 2003 | 11:31 PM
  #2  
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I guess no one knows. The LT4 "Hot" cam wasn't quite "hot" enough for me, so I went bigger. There's hardly any lope, and fuel mileage didn't change a bit from the regular cam I had in it. The cam I used is a Comp Comp 07-305-08 .510/.520 220°/230° 114° LSA. With 1.6 rockers it specs at .544/.555, 223°/234°, 114° LSA. This is on an LT1, but it's still a regular old 350 SBC. I think the slightly wider LSA helps me a lot for vacuum and mileage.
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Old Mar 23, 2003 | 11:53 PM
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From: concord New Hampshire
Car: 87 iroc and 88 k2500 tbi truck
Engine: l98 and lo5
Transmission: 700 r4's babby
so where dose your cam peak out on you
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Old Mar 24, 2003 | 04:40 PM
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From: Middleburry, CT, USA
I have the LT4 hot cam on a 383 and at 800 RPMs I get a noticeable lope out of it.... it made my car a **** load louder too compared to the L98 cam. And I have to say, for 112 LSA, my car still has good vacuum.... I havent measured it with a gauge, but my brakes weren't effected at all.
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Old Mar 24, 2003 | 05:05 PM
  #5  
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From: The State of Hockey
Car: 1987 Trans Am GTA
Engine: Miniram'd 383, 24X LS1 PCM
Transmission: TH700R4, 4200 stall
Axle/Gears: 9", 4.33:1
Here is about a 700RPM idle:

http://www.mnfbody.com/memberpages/m...ndQuickRev.wav

The mics a POS, but you get the idea.... Mine seems to sound a bit more aggressive than most. This may be due to a bit higher compression than some have and the exhaust (headers, no cat, flowmaster muffler).....
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