Which cam and what HP should I expect?
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Which cam and what HP should I expect?
I am looking to start picking up parts to do a cam swap. My question is, what cam do you all suggest I use? I am looking for a moderate cam. A little lopey and max hp. I dont want to lose any of my bottom end power, but also do not want to lose any of my allready poor traction. IT is a 98 Z28.
Here is what I have allready, Pacesetter LTs and ORY, CCed heads skimmed about 30 thousands(no flow numbers because I got them used with a fresh valve job and what look like Ferrea valves and 918 springs), Unknown catback, but seems to flow well(looks like a dynomax), lid, LS6 intake, and a light tune.
I am looking for numbers over 400rwhp. Driveability is somewhat important, but it is an extra vehicle so as long as it is reliable I am happy.
Also, what all should I also replace at the same time? Oil pump, water pump, timing chain, underdrive pulley etc etc etc??
Thanks in advance
John
Here is what I have allready, Pacesetter LTs and ORY, CCed heads skimmed about 30 thousands(no flow numbers because I got them used with a fresh valve job and what look like Ferrea valves and 918 springs), Unknown catback, but seems to flow well(looks like a dynomax), lid, LS6 intake, and a light tune.
I am looking for numbers over 400rwhp. Driveability is somewhat important, but it is an extra vehicle so as long as it is reliable I am happy.
Also, what all should I also replace at the same time? Oil pump, water pump, timing chain, underdrive pulley etc etc etc??
Thanks in advance
John
#2
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All you need to know about rquirements fo a swap is in http://www.ls1howto.com
Since you milled the heads and they have bigger valves, I would go with 218/224 .590/.605 112+2 LSA (XFI cam)
That will fit the criteria you are asking for.
Since you milled the heads and they have bigger valves, I would go with 218/224 .590/.605 112+2 LSA (XFI cam)
That will fit the criteria you are asking for.
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What kind of rwhp can I expect. I have read through the swap info and the specs they mention, but I am looking for real world numbers.
Last edited by mnypitZ; 07-04-2007 at 09:40 PM.
#5
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This is your criteria:
That is why I recomended what I did. You have ported/milled heads with larger FERREA valves so you lost .050 PTV right there with stock gasket.
The cam I gave you will make the 400 you require and have massive low>midrange trq.
On a 98, i wouldn't spin past 6300 with those rods and bearings.
The 918s will handle the lifts shimmed. But I recommend a dual.
Otherwise, TR224 112 or one of the Crane/VINCI cams, you can find the specs on various ones on their site.
Like this one:
DUR @ .004" 278*/ 286*
DUR @ .050" 216*/ 224*
LIFT .551/.551
OVERLAP 57*
LSA 113*
"THE BOSS FOR STICK SHIFTS" " THE BOSS 113"
STREET / STRIP CAM
POWER RANGE 2200 TO 6400
TUNING & STALL CONVERTER REQUIRED
GREAT MIDRANGE
POWERFUL CHOPPY IDLE
I am looking for a moderate cam. A little lopey and max hp. I dont want to lose any of my bottom end power, but also do not want to lose any of my allready poor traction. IT is a 98 Z28.
The cam I gave you will make the 400 you require and have massive low>midrange trq.
On a 98, i wouldn't spin past 6300 with those rods and bearings.
The 918s will handle the lifts shimmed. But I recommend a dual.
Otherwise, TR224 112 or one of the Crane/VINCI cams, you can find the specs on various ones on their site.
Like this one:
DUR @ .004" 278*/ 286*
DUR @ .050" 216*/ 224*
LIFT .551/.551
OVERLAP 57*
LSA 113*
"THE BOSS FOR STICK SHIFTS" " THE BOSS 113"
STREET / STRIP CAM
POWER RANGE 2200 TO 6400
TUNING & STALL CONVERTER REQUIRED
GREAT MIDRANGE
POWERFUL CHOPPY IDLE
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I am not sure how to read those specs. Why does it say at .004 and then at .050? What does that mean? How important is the overlap and lift?
I was thinking of something in the 228 range with a 112 LSA. How would that change from the 224?
Thanks again for the info. I am just cam stupid.
I was thinking of something in the 228 range with a 112 LSA. How would that change from the 224?
Thanks again for the info. I am just cam stupid.
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Originally Posted by mnypitZ
I am not sure how to read those specs. Why does it say at .004 and then at .050? What does that mean? How important is the overlap and lift?
I was thinking of something in the 228 range with a 112 LSA. How would that change from the 224?
Thanks again for the info. I am just cam stupid.
I was thinking of something in the 228 range with a 112 LSA. How would that change from the 224?
Thanks again for the info. I am just cam stupid.
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#8
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Originally Posted by LS1rulz
I doubt you'll fit a 228 on a 112 under those milled heads, with those valves. Have you begun to notice a pattern yet? Everyone is telling you those valves are not a good choice.
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Originally Posted by PREDATOR-Z
Crane/VINCI cams, you can find the specs on various ones on their site.
Like this one:
DUR @ .004" 278*/ 286*
DUR @ .050" 216*/ 224*
LIFT .551/.551
OVERLAP 57*
LSA 113*
"THE BOSS FOR STICK SHIFTS" " THE BOSS 113"
STREET / STRIP CAM
POWER RANGE 2200 TO 6400
TUNING & STALL CONVERTER REQUIRED
GREAT MIDRANGE
POWERFUL CHOPPY IDLE
Like this one:
DUR @ .004" 278*/ 286*
DUR @ .050" 216*/ 224*
LIFT .551/.551
OVERLAP 57*
LSA 113*
"THE BOSS FOR STICK SHIFTS" " THE BOSS 113"
STREET / STRIP CAM
POWER RANGE 2200 TO 6400
TUNING & STALL CONVERTER REQUIRED
GREAT MIDRANGE
POWERFUL CHOPPY IDLE
http://vincihighperformance.com/BECK...CT%20PAGE.HTML
also, i mentioned the XXX cam
http://vincihighperformance.com/CAMS...%20LS1%202.htm
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Originally Posted by mnypitZ
I am not sure how to read those specs. Why does it say at .004 and then at .050? What does that mean? How important is the overlap and lift?
I was thinking of something in the 228 range with a 112 LSA. How would that change from the 224?
Thanks again for the info. I am just cam stupid.
I was thinking of something in the 228 range with a 112 LSA. How would that change from the 224?
Thanks again for the info. I am just cam stupid.
lift is subjective.
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OK Robert, we need to sit down and find out what will work with my combo, not what wont like so many seem to want to tell me about.
I will talk to you tomorrow.
John
I will talk to you tomorrow.
John