383 Cam?
TECH Fanatic
Joined: Aug 2005
Posts: 1,691
Likes: 1
From: Sunny London, UK
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..
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.
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??
Staging Lane
Joined: Sep 2008
Posts: 80
Likes: 0
From: Currently, Zormat, Afghanistan....Home staion, FT. Richardson, Alaska
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.
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.
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.
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
-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; Mar 28, 2009 at 04:32 PM.
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Staging Lane
Joined: Sep 2008
Posts: 80
Likes: 0
From: Currently, Zormat, Afghanistan....Home staion, FT. Richardson, Alaska
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. 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)
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.
Thread Starter
10 Second Club
iTrader: (1)
Joined: Jan 2003
Posts: 1,902
Likes: 1
From: oxford, Michigan
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.
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.
Thread Starter
10 Second Club
iTrader: (1)
Joined: Jan 2003
Posts: 1,902
Likes: 1
From: oxford, Michigan
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
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?
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?
Staging Lane
Joined: Sep 2008
Posts: 80
Likes: 0
From: Currently, Zormat, Afghanistan....Home staion, FT. Richardson, Alaska
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.
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.
