408 cam question.....
Thread Starter
Melting Slicks
Joined: Jun 2004
Posts: 3,413
Likes: 278
From: NC
408 cam question.....
hey fellas,
What size cams are you 408 guys running?
I'm running this, but I think I reached it's limit. Comp XER grind 242/248 .608/.612 112 lsa
I don't run my car as a daily driver, but I used to and am not afraid of putting miles on it.
I'm interested in something bigger, but don't want to be stalling at the stop light or surging.
TIA
What size cams are you 408 guys running?
I'm running this, but I think I reached it's limit. Comp XER grind 242/248 .608/.612 112 lsa
I don't run my car as a daily driver, but I used to and am not afraid of putting miles on it.
I'm interested in something bigger, but don't want to be stalling at the stop light or surging.
TIA
Racer
Joined: Apr 2005
Posts: 466
Likes: 0
From: Greenville NC
This probably won't help you too much, but I have a G5X3 cam on my 383 that was just finished last week- it has gotten a bit tamer than it was when I had it with stock displacement. So I imagine you could go a bit bigger w/o much problems.
What kind of power are you making with that 408?
What kind of power are you making with that 408?
Thread Starter
Melting Slicks
Joined: Jun 2004
Posts: 3,413
Likes: 278
From: NC
Made 465 rwhp/ 445 tq, but i added a FAST intake, LS2 TB, and Bigger 1 7/8 Kooks, no cats and it made 491.77 rwhp/ 486.68 tq. It made 30 to 40 lbs feet more tq across the board, but I'm just not happy w/ the peak hp numbers....thought it would be atleast 500 rwhp, but I think my cam is holding me back.
Thread Starter
Melting Slicks
Joined: Jun 2004
Posts: 3,413
Likes: 278
From: NC
Originally Posted by Honez
Magic Stick from Texas Speed
Thanx for the input...anyone else?
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Thread Starter
Melting Slicks
Joined: Jun 2004
Posts: 3,413
Likes: 278
From: NC
Originally Posted by 90droptopp
238/242 xer 113 See sig for numbers with a 4.10 gear to boot. It's not your cam. What heads are you running??
I'm happy w/ the torque, but was hoping to get over 500 rwhp. Just trying to compare my setup.
I don't know what else I could do except an underdrive pulley, but that will get me what? 10 rwhp?
Le Mans Master
Joined: Oct 2001
Posts: 5,577
Likes: 3
From: Southern Maryland Maryland
Originally Posted by nextphasemarko
hey fellas,
What size cams are you 408 guys running?
I'm running this, but I think I reached it's limit. Comp XER grind 242/248 .608/.612 112 lsa
I don't run my car as a daily driver, but I used to and am not afraid of putting miles on it.
I'm interested in something bigger, but don't want to be stalling at the stop light or surging.
TIA
What size cams are you 408 guys running?
I'm running this, but I think I reached it's limit. Comp XER grind 242/248 .608/.612 112 lsa
I don't run my car as a daily driver, but I used to and am not afraid of putting miles on it.
I'm interested in something bigger, but don't want to be stalling at the stop light or surging.
TIA
If you got someone who knows how to tune get a 254/260 110 + 2
Phil
Thread Starter
Melting Slicks
Joined: Jun 2004
Posts: 3,413
Likes: 278
From: NC
Originally Posted by Phil97SVT
If you got someone who knows how to tune get a 254/260 110 + 2
Phil
Phil
TIA
-Marko
Safety Car
Joined: Apr 2004
Posts: 3,818
Likes: 4
From: San Bruno ca
Your cam seems to be a good size but what about your heads? I am running a baby cam in my 402 (226/226 lsa 112 .600 ) with a set of patriot heads and am get 473 rwhp and 489 rwtq. If you go to a bigger cam it won't nesseary help you . You might see better peak HP but will not get you down the track any faster as you would be loosing you low end.
Racer
Joined: Nov 2005
Posts: 418
Likes: 0
From: Murrieta Ca..... America, fun while it lasted
Originally Posted by nextphasemarko
Stage III T.E.A. heads......(my setup is in my sig)
I'm happy w/ the torque, but was hoping to get over 500 rwhp. Just trying to compare my setup.
I don't know what else I could do except an underdrive pulley, but that will get me what? 10 rwhp?
I'm happy w/ the torque, but was hoping to get over 500 rwhp. Just trying to compare my setup.
I don't know what else I could do except an underdrive pulley, but that will get me what? 10 rwhp?
Thread Starter
Melting Slicks
Joined: Jun 2004
Posts: 3,413
Likes: 278
From: NC
Originally Posted by 90droptopp
I can't see your sig....
Y2K Triple Black Vert M6. Borla,Kooks 1 7/8 ,B&M,Slammed. Z06 sway bars. 408ci Iron block 11.1:1 static compression ratio;Fresh LQ4 block bored .030 over,Eagle 4" crank,Eagle 6.125" rod w/ L19 bolt upgrade,Diamond flat top pistons,Comp OE style lifters,A.R.P. head bolts and main studs,Cometic MLS head gaskets,TEA Stage III cylinder heads,FAST w/ LS2 TB, Comp XER grind 242/248 .608/.612 112 lsa, All Motor.....for now. NX on the way...again
Got your pm. Thanks for the input.....
Pro
Joined: Jun 2005
Posts: 734
Likes: 0
From: Austin TX
I'm running a 240/248 .608 .612 on a 112 in a 383 ls1 w/ patriot heads. I dyno'd 486 rwhp w/ 5* knock retard. Torque was 458. That's with an ls6 intake and stock throttle body and TPIS Headers.
I know theres room for improvement in mine and I'm sure there's still some room in yours. I'm gonna see that 500 rwhp mark w/ this cam. Since you have way more cubic inches, I don't see why you shouldn't either. Good luck.
BTW I have an underdrive pulley and was told that they make about a 1hp difference. I tried to research this but couldn't find anyone w/ dyno proven results.
I know theres room for improvement in mine and I'm sure there's still some room in yours. I'm gonna see that 500 rwhp mark w/ this cam. Since you have way more cubic inches, I don't see why you shouldn't either. Good luck.
BTW I have an underdrive pulley and was told that they make about a 1hp difference. I tried to research this but couldn't find anyone w/ dyno proven results.
