Cam question in relation to bottom end build.
Thread Starter
TECH Apprentice
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From: Morinville, Alberta, Canada
Cam question in relation to bottom end build. Kind of a dumb title but i wasnt sure how else to word it.
Couple months ago i did a entire top end rebuild, le2 goodies,injectors,tb, etc. You get the point.
Well now that ive driven the car a few months and have come to find out that for one: my clutch is gone (comp. clutch in future ) and that i may have been over zealous with my cam choice, and that my car still has a high rpm miss even with a new opti
Cam in question. 230/236 .592/.592 110lsa. It feels like i can spin it right to the moon it seems and it just wants to keep going. Don't get me wrong, this makes me happy but i don't foresee the bottom end holding up to 6800-7000rpm on the stock bottom end.
I realize the cam is a little on the bigger side for a factory bottom end, but what about a 355? Or even a 383? I imagine it would perform quite nicely in a properly built 355 from what ive been reading.
I have a feeling it would be a little small for a proper 383 setup, am i wrong?
Im trying to decide between a 355 build or 383 and id rather build a bitchin' 355 as opposed to a half assed 383.
Im still lacking a little experience with cam sizing, etc so im welcome to opinions.
Ive searched and i realize this topic is beaten to death but my questions are a little more specific then asking 355 vs 383
Thanks in advance.
Couple months ago i did a entire top end rebuild, le2 goodies,injectors,tb, etc. You get the point.
Well now that ive driven the car a few months and have come to find out that for one: my clutch is gone (comp. clutch in future ) and that i may have been over zealous with my cam choice, and that my car still has a high rpm miss even with a new opti
Cam in question. 230/236 .592/.592 110lsa. It feels like i can spin it right to the moon it seems and it just wants to keep going. Don't get me wrong, this makes me happy but i don't foresee the bottom end holding up to 6800-7000rpm on the stock bottom end.
I realize the cam is a little on the bigger side for a factory bottom end, but what about a 355? Or even a 383? I imagine it would perform quite nicely in a properly built 355 from what ive been reading.
I have a feeling it would be a little small for a proper 383 setup, am i wrong?
Im trying to decide between a 355 build or 383 and id rather build a bitchin' 355 as opposed to a half assed 383.
Im still lacking a little experience with cam sizing, etc so im welcome to opinions.
Ive searched and i realize this topic is beaten to death but my questions are a little more specific then asking 355 vs 383
Thanks in advance.
Yeah that cam with LE2 heads should probably put out 410+rwhp according to LE. I was going to do a 383 build but everybody on here convinced me to just do a bad *** 355 because of my budget. Im doing forged rods, pistons, stock crank and putting my money in my top end. Probably will go with the AI 190cc heads.
Lmao you dont need that much freaking cam to put down 410.
We did 411 with a 220 intake duration cam! Not a 22x, a 220...
You're right OP, that cam is a terrible choice for stock bottom end. You could do a high RPM 355 if your only aspirations are for drag racing. If you do a 383 that cam will actually be fairly mild and should make for a good powerband.
Really depends on your goals with the car.
We did 411 with a 220 intake duration cam! Not a 22x, a 220...
You're right OP, that cam is a terrible choice for stock bottom end. You could do a high RPM 355 if your only aspirations are for drag racing. If you do a 383 that cam will actually be fairly mild and should make for a good powerband.
Really depends on your goals with the car.
Thread Starter
TECH Apprentice
iTrader: (3)
Joined: Jul 2008
Posts: 374
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From: Morinville, Alberta, Canada
Yeah that cam with LE2 heads should probably put out 410+rwhp according to LE. I was going to do a 383 build but everybody on here convinced me to just do a bad *** 355 because of my budget. Im doing forged rods, pistons, stock crank and putting my money in my top end. Probably will go with the AI 190cc heads.
Im all for a 383, but i dont think the funds are there to properly build it. If i can't fund it properly, id rather not attempt it. I really dont want to break the bank doing it as that stupid voice in the back of the head is telling me to be a little responsible. I am planning on doing the efi 24x conversion also.
Lmao you dont need that much freaking cam to put down 410.
We did 411 with a 220 intake duration cam! Not a 22x, a 220...
You're right OP, that cam is a terrible choice for stock bottom end. You could do a high RPM 355 if your only aspirations are for drag racing. If you do a 383 that cam will actually be fairly mild and should make for a good powerband.
Really depends on your goals with the car.
We did 411 with a 220 intake duration cam! Not a 22x, a 220...
You're right OP, that cam is a terrible choice for stock bottom end. You could do a high RPM 355 if your only aspirations are for drag racing. If you do a 383 that cam will actually be fairly mild and should make for a good powerband.
Really depends on your goals with the car.
So i gather it would be in my best interest to get a smaller cam if i do a 355 which is fine as i sort of figured id have to do that. The highest id like to spin it is 6200-6500 roughly. I just dont know how much of a difference the usable rpm will be with the same cam in a 383 as opposed to a 350. Is there a general rule of thumb on that?
I only see flame war's on the questions that have beaten to death and back. Kind of understandable to a point i suppose.
Ultimately the car will be on the street. Ill take it to the track maybe 3 times a year if that. Im missing the low end grunt it used to have. It comes on at like 2500-2800 like a bat out of hell, but until then it feels like nothing. Makes drive-ability under 30 sub par to say the least
Most people aren't honest about their use for the car and pick a drag race oriented setup for what is really a street car, and it's not near as fun as it could be.
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Then you need a smaller cam, or a stroker. The low end "grab you by the *****" brutal tq is what makes a STREET car fun.
Most people aren't honest about their use for the car and pick a drag race oriented setup for what is really a street car, and it's not near as fun as it could be.
Most people aren't honest about their use for the car and pick a drag race oriented setup for what is really a street car, and it's not near as fun as it could be.
