Who have a 382 stroker?
My 383 Stroker put down 460rwhp/430rwtq. This was in an A4 with a 12 bolt and 4.11 gears. I am going 408 Iron Block this time and shooting for over 500rwhp. I am just changing the pistons and block. If I were to do it all over again I would have done this from the start...
I have a 370 iron block does that cound.
I have SPDC LS6 heads and a lpe 228/228 588 588 114lsa cam.
It ran realy good in my stock bottom end ls1 so i asume it is going to run like a dream sence it will have low CR 9.1;1 and it will be bigger. I hope it does not swallow up the cam.
I have SPDC LS6 heads and a lpe 228/228 588 588 114lsa cam.
It ran realy good in my stock bottom end ls1 so i asume it is going to run like a dream sence it will have low CR 9.1;1 and it will be bigger. I hope it does not swallow up the cam.
TECH Senior Member
Joined: Mar 2004
Posts: 14,620
Likes: 17
From: BFE
Originally Posted by goober35
I have a 370 iron block does that cound.
I have SPDC LS6 heads and a lpe 228/228 588 588 114lsa cam.
It ran realy good in my stock bottom end ls1 so i asume it is going to run like a dream sence it will have low CR 9.1;1 and it will be bigger. I hope it does not swallow up the cam.
I have SPDC LS6 heads and a lpe 228/228 588 588 114lsa cam.
It ran realy good in my stock bottom end ls1 so i asume it is going to run like a dream sence it will have low CR 9.1;1 and it will be bigger. I hope it does not swallow up the cam.
Why 9.0:1 CR? and that cam will act like a 220, maybe less.
If you do not boost you'll loose power on that combo.
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I've got a 383 and the initial dyno results only put down 439/408. There's still some tweaking to do with the tune, and some intake modifications to do, I'm hoping when it's done i'll be closer to SAM98WS6's numbers.
If I had to do it all over again, I would.
If I had to do it all over again, I would.
Originally Posted by ls1fbod
Not worth the $$$, do heads and cam and use the stock discplacement...Good Luck
Please explain your theory to me?
Originally Posted by ls1fbod
Not worth the $$$, do heads and cam and use the stock discplacement...Good Luck
Originally Posted by Reboot
Wanna race? I've had my dyno overlayed with a H/C car making the same peak numbers. The only thing similar is the peak number. Over most of the power curve I have the H/C car beat by a good 35-40rwhp.
People who talk like that are usaully peak number runners. They don't take the time to check out the whole curve. I have a 382 going in with TEA/AFR 228's, FAST 90/90, Kooks stepped headers, with a pretty big cam. Hope to do a little better than the numbers the guy above me got. We have similar combos so it should be interesting.
On The Tree
Joined: Apr 2004
Posts: 157
Likes: 0
From: Brampton, Ontario
Originally Posted by texada
Do you even have a 383 stroker? I have never heard someone on this site say that its not worth getting Please explain your theory to me?
Please explain your theory to me?Remember, all things being equal, on an all stroke 383, all you’re really doing is increasing the pistons speed. If you increase the stroke, you should decrease your rev limit to compensate for the extra speed. Currently, motorcycle manufacturers and Chevrolet are using about 4,000 feet per minute average piston speed limit. There's a mathematical equation you use to determine the engine's safe rev limit. (too lazy to type it out....)
RPM = 1/Stroke (increase the engine's stroke and you must reduces its rpm limit to maintain the same reliability).
An all bore 383 is a much better option, but more expensive.
Last edited by tlaselva; Jan 12, 2005 at 10:07 PM.
383ss posted this a long *** time ago.
blue = his old 383
red = mark "the **********" shomaker's forged 347 (h/c 11.7cr w/ full bolt ons)
green = a 427
yes the 347 and 383 make simlar peak HP but the 383 kicks the **** out of it in under the curve power.
blue = his old 383
red = mark "the **********" shomaker's forged 347 (h/c 11.7cr w/ full bolt ons)
green = a 427
yes the 347 and 383 make simlar peak HP but the 383 kicks the **** out of it in under the curve power.
Last edited by jrp; Jan 12, 2005 at 10:55 PM.
TECH Junkie
Joined: Aug 2002
Posts: 3,726
Likes: 0
From: Fort Collins, CO
Originally Posted by tlaselva
Remember, all things being equal, on an all stroke 383, all you’re really doing is increasing the pistons speed. If you increase the stroke, you should decrease your rev limit to compensate for the extra speed. Currently, motorcycle manufacturers and Chevrolet are using about 4,000 feet per minute average piston speed limit. There's a mathematical equation you use to determine the engine's safe rev limit. (too lazy to type it out....)
RPM = 1/Stroke (increase the engine's stroke and you must reduces its rpm limit to maintain the same reliability).
An all bore 383 is a much better option, but more expensive.
RPM = 1/Stroke (increase the engine's stroke and you must reduces its rpm limit to maintain the same reliability).
An all bore 383 is a much better option, but more expensive.
(Stroke x RPM) / 6 = X? FT/MIN
So let's say you pull your 4.000" Stroke 382" motor to 6,800 RPM. That's a peak piston spead of 4,533 FT/MIN.
And there's no real formula to determine an engine's safe RPM limit. It's determining factors are the parts used and the way in which they were assembled. Keep in mind safe RPM limit and useable RPM limit are different. RPM's can be a bad thing.
It seems to me that the 383 has came a long ways since the early 1999-2000. Better heads, headers and the fast and LS6 Intake has pushed power right around 470 or better. There shouldn't be too many street cars out there that will out run a 470rwhp and torque car. Besides in Houston, Texas They have some wicked fast cars out there.
They have some wicked fast cars out there. TECH Junkie
Joined: Aug 2002
Posts: 3,726
Likes: 0
From: Fort Collins, CO
Actually, Texas has a HP correction factor that makes our motors read WAY more Hp than the same motor in Michigan. I'm talking differences of like, 130HP.
Somebody actually said that too.
Somebody actually said that too.
