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

350rwhp with a hotcam possible?

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Old 09-14-2006, 01:10 PM
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Originally Posted by borninatransam
if you feel comfortable with it run triple springs with it to acheive a little more lift. compared to some of the other cams out there the hotcam is kind of a low lifting cam. and i think the max lift anyone has achieved on lt1 heads is about .600". so its just whatever you feel comfortable with to make the power.
pardon my ignorance, but what exactly is meant by the terms double and triple springs?
Old 09-14-2006, 01:55 PM
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double valve springs, are valve springs that have an inner, and out spring, to increase pressure, to control the valve better.
Old 09-14-2006, 02:16 PM
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oh wow, i didnt even know that sort of thing existed.
Old 09-14-2006, 02:24 PM
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dont even attempt to run the stock springs. ever seen a pissed off accorian player? thats what they'll look like
Old 09-14-2006, 02:26 PM
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at the very LEAST ill be using the LT4 springs.
Old 09-14-2006, 02:29 PM
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are you looking at the kit for $550 or whatever it is? it comes with springs, lifters, rockers, cam.

Originally Posted by JoeliusZ28
at the very LEAST ill be using the LT4 springs.
Old 09-14-2006, 02:53 PM
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Originally Posted by @nthony
are you looking at the kit for $550 or whatever it is? it comes with springs, lifters, rockers, cam.
i was, but now i think i found someone local who is going to sell me just the cam for a good price... so if i do that ill have to piece the rest together myself. this is why im considering 1.7s. Just havent found anybody that has done 1.7s on anything bigger than a stock cam.
Old 09-14-2006, 03:05 PM
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Originally Posted by ele-blue95
mac mids are on my car. I know my car would run in the 11s with a drag race suspension and DRs.
A bit optimistic in my opinion.
12.2/4 more realistic.

I ran 12.70's with a hot cam/DR's and shorties @ 110.6
Old 09-14-2006, 06:13 PM
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Originally Posted by Bad Dad
A bit optimistic in my opinion.
12.2/4 more realistic.

I ran 12.70's with a hot cam/DR's and shorties @ 110.6
I know it is very posible. If you do the math for every 10th off my 60' is 1.5 to 2tenths in the 1/4. Im not trying to be a jerk. I have been doing this for 10 years.
Old 09-14-2006, 06:54 PM
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Originally Posted by ele-blue95
I know it is very posible. If you do the math for every 10th off my 60' is 1.5 to 2tenths in the 1/4. Im not trying to be a jerk. I have been doing this for 10 years.
Me neither Iv'e been doing this awhile myself,
the "math and a timeslip are 2 different things".
For sake of discussion (not arguement) what 60 do
you think you could cut using a optimum suspension and
your current power level.
Old 09-15-2006, 12:30 AM
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Originally Posted by Bad Dad
Me neither Iv'e been doing this awhile myself,
the "math and a timeslip are 2 different things".
For sake of discussion (not arguement) what 60 do
you think you could cut using a optimum suspension and
your current power level.
If he wasn't babying his car outta the hole due to the rear end, and could put a set of tires that stuck on there, I think he'd pull a 1.7x easy. The suspension isn't the problem, the shitty street tires that he's running are. When he hooks, he gets out to the top of first, the car blows the tires off, when he doesn't hook... well...

Eric is gonna get that problem rectified shortly.

For what it's worth, when we race at the track, I get him outta the hole, but he starts pulling back around the 1000 foot or so pretty damn noticiably.
Old 09-15-2006, 12:39 AM
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Don't even try to run 1.7's on the LT4 springs. LT4 springs are barely enough for the 1.6's @ the rated .525 lift. You can definitely run 1.7's on a hotcam, should put you in the .547 / .557 lift area ? I would probably use a combination motorsports EX-614 spring, rated to .600 lift.

Old 09-15-2006, 11:30 AM
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Like Doubt it said I will be working on the tire issue soon. As far as the suspension goes I could get in the 1.6s easy on slicks. My car just spins 1 thru 3 on street tires. So if you want slips I will get slips here before to long. Doubt it good luck at the track tonight and I will be out next week to run you down.
Old 09-15-2006, 11:32 AM
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i got 344 with the hot cam through a 6 speed. that was with shorty headers and stock water pump. with an electric water pump and a little more tuning im sure i could of hit 350
Old 09-15-2006, 11:50 AM
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Originally Posted by 96silverram
Don't even try to run 1.7's on the LT4 springs. LT4 springs are barely enough for the 1.6's @ the rated .525 lift. You can definitely run 1.7's on a hotcam, should put you in the .547 / .557 lift area ? I would probably use a combination motorsports EX-614 spring, rated to .600 lift.

oh i wouldnt even try to run 1.7s on the LT4 springs. Im still trying to find somebody who has DONE 1.7s on the hotcam (with any springs) before. I have a bunch of people tell me it should work, and a bunch of people say it isnt a good idea.

from another forum:
The cylinder heads and the intake are holding back the power more then the camshaft. 1.7 ratio rockers are not a good idea on the old SBC valvetrian architecture without some other upgrades and geometry changes to make them work like taller valves etc.
I dont know who to believe, but i know im not going to gamble over an extra 10hp. ill go with 1.6s before i risk something coming apart on me.
Old 09-15-2006, 12:01 PM
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well now i just found this:

http://www.wku.edu/~nathan.plemons/h..._corvette.html

14rwhp apparently, i wish he gave more details.
Old 10-22-2006, 11:57 AM
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Hey Joelius,

Im going for a similar goal as u, aiming for around 350rwhp.

I have a 94 Trans Am GT M6 with the mods listed in my signiture, and I had it tuned at Speed Inc. in Schaumburg, IL after I did my LT4 conversion, and I was only cranking about 320 hp. For what I use the car for (daily driver, all season) its good enough.

Old 10-22-2006, 12:37 PM
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good numbers and times ele-blue95
Old 10-22-2006, 06:52 PM
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4:33 with DR and 1.5 60" will get you to 11sec

350rwhp is NP on light ported stock heads



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