C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

LT4 HOT cam (was "Weakest Link" thread)

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Old Apr 30, 2002 | 01:11 AM
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Default LT4 HOT cam (was "Weakest Link" thread)

I wanted to start a new topic since many will probably reply to this.

Summary: I'm putting a '95 LT1/4L60E into a '76 and asked what would be the first changes you would make to give the engine a little more "umph" and what parts would probably need replacing first (it has 43K on it now)

Many replied w/ changing the cam and chose the LT4 HOT cam as a good selection. Somewhere I *THOUGHT* I read that this was great for the 6-speeds, but only so-so for the Automatics...any validity to this? If so, would a higher stall speed help? If anyone can shed some light, I'd appreciate it :yesnod: Also, many suggested tossing the springs that come w/ the HOT cam kit...which ones would be best?

* and THANKS again for all those who responded to my "Weakest Link" thread...excellent advice!

DR'76


[Modified by DR'76, 11:12 PM 4/29/2002]
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Old Apr 30, 2002 | 01:21 AM
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Default Re: LT4 HOT cam (DR'76)

I have the hot cam in my 94 auto ... no problems here! :D If you can do your own programming, this cam will work great on either. With a stock program, however, good luck sitting at a stop light! :jester
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Old Apr 30, 2002 | 09:23 AM
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Default Re: LT4 HOT cam (Glock'94)

I think with the hot cam you need a higher stall converter, and at least a 3:73 rear since the cam makes most of its power in the higher RPM. My GS pulls like a mother from 3000 up!!!
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Old Apr 30, 2002 | 04:21 PM
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Default Re: LT4 HOT cam (DR'76)

Somewhere I *THOUGHT* I read that this was great for the 6-speeds, but only so-so for the Automatics...any validity to this?
[Modified by DR'76, 11:12 PM 4/29/2002]
I did a bunch a research for this about 6 months ago, the hot cam will do alot better in the Manuals then the automatics. The hotcam really pulls above 4000, which is great for a manual because a redline shift will leave them at 4000rpm in the next gear. The auto's however get stuck at 3000 which means they are SOL. Glock seems to do just fine because he's got a 383 which'll make a big difference in the torque needed to get the auto's going.
A higher stall speed will help you off the launch but not in that 1-2 shift.

As for the Springs, I'm using those springs with my zz-9 cam and they seems to be doing just fine, however, I'm also having problems with the stock ECM not being able to handle a .52 lift. I've got an Ed Wright special on the way to fix that.
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Old May 2, 2002 | 05:10 PM
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Default Re: LT4 HOT cam (mn_vette)

The hotcam really pulls above 4000, which is great for a manual because a redline shift will leave them at 4000rpm in the next gear. The auto's however get stuck at 3000 which means they are SOL.
From all of the before/after testing that I have seen, the hot cam adds torque everywhere rather than trading high RPM power for low RPM power. So if that's the case then at 3000 you'll still be better off with the hot cam since it will be making more power than stock. Just my 2 cents...
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