So I was thinking about what one would need to do to get a bigger cam to work with stock manifolds. Would something like a 226/232 XER/LSK on a wide LSA with an appropriate amount of advance work? Or would that just be to much air for the manifolds to handle, even with a big split and extra lift? Patrick G and Predator your input would be greatly appretiatied.
Thanks in Advance
AJ

 

Why would you want to use stock manifolds?

 

"I was thinking about what one would need to do to get a bigger cam to work with stock manifolds."

I think this makes your question irrelavent. Also, "stealth cam idea" ??

 

he wants to use stock manifolds to make it quieter.Patrick G. did this with suprising results.

 

Surely good muffler design would do this without the stock manifolds robbing power!?
I can see iron manifolds deadening the sound exiting the head somewhat, but would have thought good muffler selection with some quality solid headers would more than compensate for the power loss and still give the stealth sound effect.

 

I agree 100% with ringram. There are a lot of quiet mufflers out there that wont rob power like those manifolds will. If you are that concerned with noise, use a muffler as close to the header as possible...and the rear mount. You wont hear anything.

 

I just got into the whole ls1 thing, I got one to swap into my 79 camaro. And I really want to keep the exhaust quiet but make power too, but I heard somewhere that the closer the muffler is to the header it will be louder...just what I heard, Im not experienced enough to say though...but which muffler would you suggest to do that with?

 

the stock manifolds is something that applies to a lot of people in smog states, not so much for passing smog but gettting hassled by cops when you get pulled over and hood popped if you have LT's in cali your getting a ticket and going to the smog ref its that simple, sometimes you just dont want to be hassled.

 

Why not just go with the Cheatr cam from Thunder ---->

214/230 .601/.578 117 LSA

 

You have it backwards, the more restrictive the exhaust, the less overlap you want

 

+1. It was designed specifically with the intent of making as much power as possible with a smooth idle and restrictive exhaust. And it worked. . .

Mike

 

im running a 224/228 on a 114 with the stock 02 manifolds... works GREAT.. you can hear a little lope, its not stealth, but its mild.... put 366 uncorrected to the rear wheels thru a 9".. not too bad for just the cam.
only other engine mod is an ASP pulley.

 

I vote for the cheaTR if you are running stock manni.

 

im thinking about going with the cheaTR (for stealthyness) but i alreadt have LT's would i be better off going with a different cam?

 

The CheaTR works well with headers also.

 

it was a theoretical question, my pace setter long tubes are going in this weekend. I was thinking more along the lines of a well designed cam with stock manifolds and a hidden nitrous system for a little bit of steet work. Theoretically of course because I do not condone any illegal street racing activity. Really though, I was just curious to see what would work in that application and what some more experience cam guys would say.

 

seems like you would still want more split in the exhaust, even though the LSK lobe would give it more curtain area. those durations will be hard to make work and remain stealth.

 

So maybe more like 220/236? Just a bigger version of the CheaTR cam? CheaTR v2 if you will? I have a mac and can not seem to get any of the desktop dyno programs to work, can some one try this one for me? on a XE-R/LSK lobed cam with a 116+4. Thanks in advance
AJ

 

The CheaTR cam is not simply a cam with mediocre duration on a wide LSA. The valve timing events were specifically chosen to optimize power in a certain rpm range, while keeping a smooth idle and restrictive exhaust. Simply adding duration may actually make less power because of valve events being timed where they should not be. Be careful. . .

Mike

 

I know that the CheaTR cam is very well designed and I wasn't trying to say that it wasn't. I was just wondering if the same sound could be produced with a little more duration to make more power. It's just a little bench racing. I really like the idea of stealth cams, but want to know if it's possible to make a little more power that the CheaTR, using a custom grind. Although I suppose that if they could make more power and keep the sound down they would have.