Disapointed in my results..
Thread Starter
10 Second Club
Joined: Aug 2004
Posts: 328
Likes: 0
From: Houston
Disapointed in my results.. I went to the dyno with a group of Fbods for dyno day.. After dynoing my car I was shocked at my torque #'s... First pull was 402.47hp 368.28tq. With that said.. it went lean from 4-5.5k sitting right around 14... I know I have a small cam, but ****.. why is my torque so low!? My cam is in my sig, with .550 lift.. Could it be the combination of my small cam and the AF going lean to cause that much of a loss? Or is there something that could be worse then that...
Last edited by TexasLT4; Mar 6, 2005 at 04:21 PM.
I got the numbers in my sig with the G5X2 cam. I also thought my torque was low.
Since you have heads, you should be at around 420+rwhp and 390+rwtq IMO.
I'm assuming you haven't tuned it yet?
Since you have heads, you should be at around 420+rwhp and 390+rwtq IMO.
I'm assuming you haven't tuned it yet?
Thread Starter
10 Second Club
Joined: Aug 2004
Posts: 328
Likes: 0
From: Houston
Originally Posted by Bo White
If your engine size is still 5.7 and your runnin 6.0 heads your compression is like 9.5 or so and that is what is hurtin ya.
It could just be something as simple as your spark table. The stock spark table goes down to 23* at 4800 rpm where you should be making your torque. Once you get the "timing speedbump" removed it should help, don't know how much.
Last edited by P Mack; May 24, 2007 at 09:12 PM.
Trending Topics
TECH Enthusiast
Joined: Sep 2004
Posts: 564
Likes: 0
From: Omaha, NE
Good tuners often decrease timing and keep it more rich in the peak torque RPM range because engines are most prone to detonate there due to the highest cyl pressures occur there. When I see peak and valley ridges in fuel and timing maps in someone's custom tune it usually means it is a good tune and required a lot of time.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Your heads are way too big for this cam. These heads are for big cube motors or FI. In order to get your moneys worth out of these heads (on your 5.7), you should be at least in the mid 230s and well over .550 on both sides. More like .600. You will not get much more torque out of these heads. The runner volume is just too much, but you can get a lot more HP.