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Thinking of purchasing this but

Old May 14, 2010 | 10:54 PM
  #1  
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Car: 1990 RS Camaro
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Thinking of purchasing this but

I want to purchase this:


http://www.summitracing.com/parts/CCA-SK12-242-2/

but want to know if itll require any type of machine work to my lo5 swirlports (I know).

I have the money for the cam but no money for any type of machine work.


Also is this a good choice in cam for a car that'll see mostly street, and a little strip. looking for around 300-400hp with no power adder

Last edited by sparkplug619; May 14, 2010 at 11:03 PM.
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Old May 14, 2010 | 11:02 PM
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Re: Thinking of purchasing this but

sorry i meant this kit

http://www.summitracing.com/parts/CCA-SK12-242-2/
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Old May 15, 2010 | 12:44 AM
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Re: Thinking of purchasing this but

from what ive read, no machine work is required. the website just threw me off when it said head machining required
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Old May 15, 2010 | 01:38 AM
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Re: Thinking of purchasing this but

I run the same cam. My heads were already machined for bigger valves and .550" valve lift clearance when I got them though. I think that cam is as big as youll be able to go using stock ratio rocker arms without having to machine the heads for more lift. You will however have to change the valve springs and rocker arms. I just so happen to have a spare set of the comp cams springs you need for that cam taking up space in my closet. Its the full set of springs, steel retainers, and steel valve locks. They were used for about 1000 miles on a friends engine before he blew it up, but they are in perfect shape.
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Old May 15, 2010 | 01:58 AM
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Re: Thinking of purchasing this but

that is an awesome street cam. But if your car is still EFI, it will not work. carb only
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Old May 15, 2010 | 02:04 AM
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Re: Thinking of purchasing this but

Originally Posted by travis401
I run the same cam. My heads were already machined for bigger valves and .550" valve lift clearance when I got them though. I think that cam is as big as youll be able to go using stock ratio rocker arms without having to machine the heads for more lift. You will however have to change the valve springs and rocker arms. I just so happen to have a spare set of the comp cams springs you need for that cam taking up space in my closet. Its the full set of springs, steel retainers, and steel valve locks. They were used for about 1000 miles on a friends engine before he blew it up, but they are in perfect shape.
pm me a price?? I dont have much money though

Originally Posted by Ron88formula
that is an awesome street cam. But if your car is still EFI, it will not work. carb only

Why only carb'd? the comp website offers variations, one for carb, tbi, tpi, bigger engines, smaller engines, I got the one for 350 tbi.
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Old May 15, 2010 | 02:05 AM
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Axle/Gears: 9 bolt 3.70 gears
Re: Thinking of purchasing this but

another thing, with a cam like that its better to run a lower gear ratio. 3.42 at a minimum. 3.73s would be better. and a higher stall converter like a 2,400
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Old May 15, 2010 | 02:08 AM
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Re: Thinking of purchasing this but

i thought you were looking at that exact one. as long as its compatible, your good
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Old May 15, 2010 | 02:10 AM
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From: West Bend, Wi
Car: 87 & 88 Formula
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Axle/Gears: 9 bolt 3.70 gears
Re: Thinking of purchasing this but

I thought you were looking at that exact one. as long as its efi compatible, your good
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Old May 15, 2010 | 02:17 AM
  #10  
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Re: Thinking of purchasing this but

Originally Posted by Ron88formula
I thought you were looking at that exact one. as long as its efi compatible, your good

I would need a computer controlled cam correct?

I checked the website again and they only have the one in the link, a tpi version, and one for big block.


Here is the selection... will any of these fit my car? I need to keep it tbi because california emissions


---sorry cant get it to link---

Last edited by sparkplug619; May 15, 2010 at 02:23 AM.
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Old May 15, 2010 | 02:25 AM
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Re: Thinking of purchasing this but

this one here... will this work


http://www.summitracing.com/parts/CCA-CL12-268-4/
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Old May 15, 2010 | 02:27 AM
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From: West Bend, Wi
Car: 87 & 88 Formula
Engine: 334 stroker
Transmission: 700r4
Axle/Gears: 9 bolt 3.70 gears
Re: Thinking of purchasing this but

is your engine completely stock? also, are you still running the stock injectors? what are your plans with it. if u can tell me your setup, then i can help u pick out a cam to fit your needs
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Old May 15, 2010 | 02:29 AM
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From: West Bend, Wi
Car: 87 & 88 Formula
Engine: 334 stroker
Transmission: 700r4
Axle/Gears: 9 bolt 3.70 gears
Re: Thinking of purchasing this but

efi engines need a lobe seperation like a 112 -114. they dont anything tighter like a 108 or 110.
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Old May 15, 2010 | 02:44 AM
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Re: Thinking of purchasing this but

Originally Posted by Ron88formula
is your engine completely stock? also, are you still running the stock injectors? what are your plans with it. if u can tell me your setup, then i can help u pick out a cam to fit your needs

I currently have the engine out of the car. It is a stock lo5 with the basic swirlports.

My mod after a good cam is vortec heads.

I want to keep it a smog legal as I could. what I mean is sniffer legal, visual doesnt really matter.

I want to do hooker 2055's > 2055 y-pipe > cutout before cat > stock exhaust.

I want my car to be a semi daily driver, but also a strip beast.

Im looking for about 300 mid-high range hp.

I'm not to good with chevy performance yet but I know how to work on an engine.
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Old May 15, 2010 | 02:52 AM
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Car: 1990 RS Camaro
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Re: Thinking of purchasing this but

Originally Posted by Ron88formula
is your engine completely stock? also, are you still running the stock injectors? what are your plans with it. if u can tell me your setup, then i can help u pick out a cam to fit your needs
Originally Posted by Ron88formula
efi engines need a lobe seperation like a 112 -114. they dont anything tighter like a 108 or 110.
the second one I posted has a lobe seperation of 114.
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Old May 15, 2010 | 03:01 AM
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Re: Thinking of purchasing this but

That cam has a lift of .480". If I'm not mistaken, the stock heads can handle about .460" of lift, anything over that and you gotta machine the guides to handle more lift.
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Old May 15, 2010 | 03:04 AM
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Re: Thinking of purchasing this but

Originally Posted by travis401
That cam has a lift of .480". If I'm not mistaken, the stock heads can handle about .460" of lift, anything over that and you gotta machine the guides to handle more lift.
the person who posted above you is running this same cam and it fits but I couldnt go any bigger than this lift
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Old May 15, 2010 | 03:05 AM
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From: West Bend, Wi
Car: 87 & 88 Formula
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Re: Thinking of purchasing this but

what kind of compression are u plannin?
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Old May 15, 2010 | 03:10 AM
  #19  
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Re: Thinking of purchasing this but

Originally Posted by Ron88formula
what kind of compression are u plannin?

more then likely 9.5:1 or 10.0:1. If I go with 9.5:1 I would want to build the car to be able to handle a power adder, more then likely a supercharger. But I dont have that kind of budget so I may just go with higher compression
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Old May 15, 2010 | 03:16 AM
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Re: Thinking of purchasing this but

Well I found this and post #3 is saying that .480" of lift is the max you can safely do on stock swirl ports.
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Old May 15, 2010 | 03:16 AM
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Axle/Gears: 9 bolt 3.70 gears
Re: Thinking of purchasing this but

if you go close to 10.0 with that cam, Vortec heads, and a good int manifold, you should be close to 400 hp. i think you'll be really happy with it. there's mods you must do to the tbi unit to support that kind of power. that tbi is your biggest restriction. check out the tbi section, there's tons of info there on what to do.
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Old May 15, 2010 | 03:18 AM
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Re: Thinking of purchasing this but

and i do agree with travis, i think u need to have them machined.
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Old May 15, 2010 | 03:27 AM
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Re: Thinking of purchasing this but

Originally Posted by Ron88formula
if you go close to 10.0 with that cam, Vortec heads, and a good int manifold, you should be close to 400 hp. i think you'll be really happy with it. there's mods you must do to the tbi unit to support that kind of power. that tbi is your biggest restriction. check out the tbi section, there's tons of info there on what to do.

Oh Ya I know that article front and back... That'll definitely be my next mod.

As for the engine. I believe a rebuild is in order.. I dont think I can survive on stock 8.3:1 compression
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Old May 15, 2010 | 03:31 AM
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Re: Thinking of purchasing this but

well Im not paying to have these heads worked on when Im going to swap them out anyway so Im just going to buy the cam and parts, if it doesnt fit, im saving up for vortechs
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Old May 15, 2010 | 03:38 AM
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From: West Bend, Wi
Car: 87 & 88 Formula
Engine: 334 stroker
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Axle/Gears: 9 bolt 3.70 gears
Re: Thinking of purchasing this but

the vortec heads with that cam is whats goin to make the difference. they should work together nicely. your not going to be able to take advantage of that cam with those stock tbi heads. if your on a really tight budget and you have to run them, id pick a little smaller cam.
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Old May 15, 2010 | 03:39 AM
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Re: Thinking of purchasing this but

Seeing as Im running the vortec heads, Im gonna agree with that statement
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Old May 15, 2010 | 04:12 AM
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Re: Thinking of purchasing this but

I just read an article where a guy upgraded his cam ad rockers, giving him a max lift of .488. Everyone said he should have no problems with that much lift. I think Ill be fine. Im not giving up on vortecs, I just cant afford it
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Old May 15, 2010 | 04:58 AM
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Re: Thinking of purchasing this but

Originally Posted by Ron88formula
efi engines need a lobe seperation like a 112 -114. they dont anything tighter like a 108 or 110.

I have a 110 in mine and it runs great? I've seen quite a few of the LSX guys run tight LSA's also.
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