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

Hotcam ONLY dyno numbers

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Old Jul 8, 2005 | 11:41 PM
  #1  
Compstall's Avatar
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From: Tacoma, WA, USA
Hotcam ONLY dyno numbers

Finally got on the dyno tonight to check out the gain from the cam. I can't
believe how much I gained. I got almost a 28 hp gain with the Hotcam ONLY, no tuning, no headers yet. So now I'm sitting at 324 rwhp SAE. I lost a few
pounds of torque throughout the powerband up until above 5k, then I'm making 30 more lb. feet.

Since I'm still on stock tuning, they had to cut me short (~5,800 rpm)....the
car was still building power at that point. I don't think it will get much
above 330 or so with a new redline set, but I'm extremely impressed with where it sits. Not bad with a little ole Hotcam through stock exhaust manifolds.

Once I get a set of headers, and tuning, I'm optimistic that it just might hit
the 350 rwhp mark.

http://memimage.cardomain.net/member...5_142_full.jpg
Old Jul 8, 2005 | 11:44 PM
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1FASASZ's Avatar
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Re: Hotcam ONLY dyno numbers

daaam good job, i think hitting 350 is verry possiple
Old Jul 9, 2005 | 12:10 AM
  #3  
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Re: Hotcam ONLY dyno numbers

This gives me hope... But damn the cam doesnt give TQ for **** down low.
Old Jul 9, 2005 | 12:15 AM
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Re: Hotcam ONLY dyno numbers

well, i can't say i've ever seen any hotcam only car go 350, but u can try. i think the highest known lt1 cam only car is owned by a member with a gm 847 cam. something around 355-360rwhp. i doubt you can make 350, but hey we're always finding new ways to make power.
Old Jul 9, 2005 | 12:38 AM
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Re: Hotcam ONLY dyno numbers

Nice... your probably making more than my old set up which was only in the 13s at 3500ft. Maybe now you can get yourself back into the 13s...lol altitude sucks man.
Old Jul 9, 2005 | 10:30 AM
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Re: Hotcam ONLY dyno numbers

Are you a full bolt on car? Are you running a complete exhaust system with
a catalytic?
Old Jul 9, 2005 | 10:56 AM
  #7  
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Re: Hotcam ONLY dyno numbers

wow great numbers, back when i had the hotcam i dynoed 337rwhp with shorty headers,no electric waterpump and all the bolt ons. this was with my cut out open.
Old Jul 9, 2005 | 10:56 AM
  #8  
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Re: Hotcam ONLY dyno numbers

with headers and a good tune i think 350 is acheivable, g'luck
Old Jul 9, 2005 | 11:17 AM
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Re: Hotcam ONLY dyno numbers

Nice numbers comp, get some LT's on that thing and prove that 350 mark, cause with a tune and LT headers I DEFINATLY would think 350 is achievable. If not very very close to it.
Old Jul 9, 2005 | 11:46 AM
  #10  
Compstall's Avatar
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Re: Hotcam ONLY dyno numbers

Originally Posted by truedualws6
Are you a full bolt on car? Are you running a complete exhaust system with
a catalytic?
I have a Borla y-pipe, Flowmaster exhaust and a straight-piped cat. convertor.

Other power mods:

1.6 RR's
Hotcam springs
Lingenfelter CAI
CSI Elect. wp
March pullies
Granatelli MAF
uh, airfoil thingie...
Old Jul 9, 2005 | 12:15 PM
  #11  
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Re: Hotcam ONLY dyno numbers

Man nice #'s

There is someone who broke the 350rwhp mark like with stock heads and a hotcam so it can be done.

Some LT's and a good tune and you could be close
Old Jul 9, 2005 | 12:36 PM
  #12  
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Re: Hotcam ONLY dyno numbers

No doubt 350rwhp is attainable with headers and a tune. I only made 325rwhp with the Hotcam kit, e-mail PCM tune shorties and decent exhaust. Nice #'s. Later Clint
Old Jul 9, 2005 | 04:17 PM
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Re: Hotcam ONLY dyno numbers

while we're on the subject, what are some ideal stock-headed cams for near(or fully) stock cars?

nice numbers, is there any way you can get a dyno graph of what your car did with the stock cam so you can lay the graphs over each other to compare where you lost/gained power and how much?
Old Jul 9, 2005 | 09:48 PM
  #14  
Feenix's Avatar
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Re: Hotcam ONLY dyno numbers

while we're on the subject, what are some ideal stock-headed cams for near(or fully) stock cars?

I personally wouldn't go any higher than a cc306 on a stock bottom end unless you don't mind the risk and can afford a rebuild should a bearing spin. Even the 306 spun a bearing on a buddy of mines z28 with 92k miles.
Old Jul 9, 2005 | 10:22 PM
  #15  
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Re: Hotcam ONLY dyno numbers

Originally Posted by Feenix
I personally wouldn't go any higher than a cc306 on a stock bottom end unless you don't mind the risk and can afford a rebuild should a bearing spin. Even the 306 spun a bearing on a buddy of mines z28 with 92k miles.
No cam by itself is going to spin bearings unless there is something physically wrong with it. It's the stock bearings themselves that can't handle high rpm, even though the cam you put in is designed for it. That's what can cause spun bearings; either that or dirt got in there during the install, etc.



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