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383 Cam?

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Old 01-21-2009, 05:41 AM
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Originally Posted by 99 Black Bird T/A
That was the rule of thumb I used for my 383. I like 224 cam'd 346's so my 383 has a ~ 230 cam
Yeah I read that in a Vizard article. Take the difference between the 2 engines in cubes and use the square root of that number as the amount to add to the smaller engines cam spec's that you know works well..
Old 01-21-2009, 08:01 PM
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Originally Posted by slowandrichws6
ok just thought i would throw this in here, 374 ls6 stroker,11.36:1, NX 200 shot, PRC ls6 heads, JE flat tops, Eagle h beams, Eagle crank, FULLY STUDDED, ls6 intake, and patrick g sent me a custom grind that is a 246/253, .622/.621 112+4 LSA. this is a daily driver and if freakin screams, from down low all the way to the top. i know its not a 383 but just thought i would let you know what i am running.
What kind of power are you making?
Old 01-21-2009, 10:22 PM
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about anywhere from 480-500 rear wheel on motor, i havent ran on a dyno yet but it is really strong
Old 01-22-2009, 12:17 AM
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mine made 465rwhp. don't remember the TQ.
Old 03-28-2009, 10:04 AM
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BUMP this thread up! Anybody got any new cams or dyno results or track times? I seen a thread recently where Patrrick G specd a cam for a 347 using solid roller lobes and gained 28rwhp with about the same size cam and was thinking of trying that out??
Old 03-28-2009, 01:19 PM
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Anybody running the tsp 383? if so what pistons did you go with and what h/c/i? dyno numbers and times?

I am about to order the tsp 383 so any info would be nice. lets keep this thread going.

here is how i was going to set it up:

tsp 383 short block w/ wiseco +5cc dome pistons, wiseco steel top rings, eagle 6.125" H beam rods w/ arp 2000 rod bolts, eagle ls1 forged crank, arp main stud kit, 24x reluctor wheel

want to go with either the magic stick 3 cam or Texas Speed Torquer v.2 Cam w/ the prc spring kit and pushrod package.

Want to go with the dart ls1 heads

havn't decided on an intake and tb yet.
Old 03-28-2009, 03:34 PM
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I've got the old ms4 in my 383 with a Ls6 intake, and it only made 430rwhp/406rwtq thru the A4. It only peeks at 5900rpm with stage 1 (297cfm/227cfm) Ls6 heads, 11.75:1, and the rest of the norm. best e.t. 11.42@119w/ 1.61 60'. at 3590 lb race weight(w/ driver). Would I benefit from a better cam or fast 90or92.
Old 03-28-2009, 04:26 PM
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I run a TSP 383.
-7cc Diamond flat tops with 62cc chambers= 11.4 static compression.
Cam specs are 236/242 .615”/.612” 111LSA +2 advance

Last edited by BYE RICE; 03-28-2009 at 04:32 PM.
Old 03-28-2009, 05:23 PM
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What size headers are you 383 guys running? I was going to run the TSP 1 7/8 headers but I may have clearence problems? Plan on a 150-200 shot and a huge cam
Old 03-28-2009, 09:46 PM
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1 3/4 LG Pros is what I have. It is all I need according to Meaux's Flowmax program.
Old 03-29-2009, 04:43 AM
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1 3/4 QTP's with their 3" Ypipe.
Old 03-29-2009, 12:00 PM
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Heres what I really want to know...

1. Who is making 500rwhp (or close to) with a 383 on pump gas?
2. current setup

im looking to make 500 hp na and then spray a 200 shot (NANO)
Old 03-29-2009, 12:42 PM
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Originally Posted by 1bdtrk
Heres what I really want to know...

1. Who is making 500rwhp (or close to) with a 383 on pump gas?
2. current setup

im looking to make 500 hp na and then spray a 200 shot (NANO)
1. I am.
2. 2004 TSP prepped LS6 block, Eagle crank, Scat rods w/ARP2000 bolts,Diamond -7cc pistons(11.4 scr) TSP 2.5 truck heads w/ 62cc chambers, 2.02/1.60's, Pat G cam 236/242 .615”/.612” 111LSA +2 advance, LS7 lifters,Comp 7.4" pushrods,Harland modified stock rockers, Comp 921 springs,
QTP oil pump
Unported FAST 90/90,
-30 lb FRPP injectors, Racetronix wired 255 fuel pump.
-'04 Z06 MAF
-K&N FIPK
-QTP 1 3/4 headers+QTP 3" Y-pipe
-Borla catback,no plate.

Power might've been higher if I didn't run 3.73's in a 12 bolt.

All this & the car gets 26 MPG hwy.
Old 03-29-2009, 12:42 PM
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Originally Posted by BYE RICE
I run a TSP 383.
-7cc Diamond flat tops with 62cc chambers= 11.4 static compression.
Cam specs are 236/242 .615”/.612” 111LSA +2 advance
are you sure thats 11.4?
Old 03-29-2009, 12:53 PM
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Originally Posted by 1BADAIR
are you sure thats 11.4?
Yes.
Stroker motors need either bigger combustion chambers in the heads or larger valve reliefs in the pistons in order to keep the compression to pump gas levels.
The reason for that is a stroker motor has extra distance to compress the mixture over a stock stroke engine.

My engine doesn't ping with 93..But it will with 92.
It pings at idle with 89. It's on the ragged edge of needing to mix in race gas.
Old 03-29-2009, 01:10 PM
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the reason I asked is cause I have the same pistons, same chamber size , gm MLS gaskets and everything I can find and everyone I talked to says mine is only 10.7-8
Old 03-29-2009, 01:31 PM
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I run Cometic head gaskets for what that's worth.
I wish I had my cam recommendation form from Pat G..because those were the #'s that he came up with.
The truck heads required some milling after the fact in order to get them BACK to 62cc's.
Whatever bowl work was done in the porting process enlarged the CC's by either 2 or 3.
I cc'd the heads locally & had sent back to TSP to be corrected.
My cam is set up EXACTLY around those dimensions.

Did TSP build your motor?
Old 03-29-2009, 01:35 PM
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Originally Posted by BYE RICE
1. I am.
2. 2004 TSP prepped LS6 block, Eagle crank, Scat rods w/ARP2000 bolts,Diamond -7cc pistons(11.4 scr) TSP 2.5 truck heads w/ 62cc chambers, 2.02/1.60's, Pat G cam 236/242 .615”/.612” 111LSA +2 advance, LS7 lifters,Comp 7.4" pushrods,Harland modified stock rockers, Comp 921 springs,
QTP oil pump
Unported FAST 90/90,
-30 lb FRPP injectors, Racetronix wired 255 fuel pump.
-'04 Z06 MAF
-K&N FIPK
-QTP 1 3/4 headers+QTP 3" Y-pipe
-Borla catback,no plate.

Power might've been higher if I didn't run 3.73's in a 12 bolt.

All this & the car gets 26 MPG hwy.

Sweet, thanks man. That is what i needed to hear. Ill probably go with a setup almost identical.
Old 03-29-2009, 01:40 PM
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Comp XE-R lobes, 238/244 duration @ .114+2 comp cam.....idle video of my old 383ci in the sig
Old 03-29-2009, 01:58 PM
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Originally Posted by 1bdtrk
Sweet, thanks man. That is what i needed to hear. Ill probably go with a setup almost identical.
I forgot to mention..XFI lobes on the cam..Very important.
When I get the FAST Mamo ported..I hope to be over 500 RWHP.


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