My New Dyno with LT4 Mods
Thread Starter
Racer
Joined: Sep 1999
Posts: 341
Likes: 0
From: Mt. Prospect Illinois
My New Dyno with LT4 Mods
http://www.printroom.com/_vti_bin/Vi...=43&courtesy=1
This is after cam,headers,throttle body,plugs & wires installed
by Vette Wrench and programming by BV Performance.
New dyno best 342 rwhp and 337 rwtq
Prior dyno was 303 rwhp and 301 torque.
I was hoping for more. My goal is 400rwhp. When I do new heads I
think I will need a bigger cam to achieve my goal.
I should of planned out the heads/cam package better. I have not chosen
new heads yet. I think with the Hot cam the best I could get is 380rwhp
with a new/cnc ported heads.
[Modified by vettmanlt4, 11:14 AM 7/15/2002]
[Modified by vettmanlt4, 11:24 AM 7/15/2002]
[Modified by vettmanlt4, 11:24 AM 7/15/2002]
[Modified by vettmanlt4, 11:26 AM 7/15/2002]
[Modified by vettmanlt4, 11:50 AM 7/15/2002]
This is after cam,headers,throttle body,plugs & wires installed
by Vette Wrench and programming by BV Performance.
New dyno best 342 rwhp and 337 rwtq
Prior dyno was 303 rwhp and 301 torque.
I was hoping for more. My goal is 400rwhp. When I do new heads I
think I will need a bigger cam to achieve my goal.
I should of planned out the heads/cam package better. I have not chosen
new heads yet. I think with the Hot cam the best I could get is 380rwhp
with a new/cnc ported heads.
[Modified by vettmanlt4, 11:14 AM 7/15/2002]
[Modified by vettmanlt4, 11:24 AM 7/15/2002]
[Modified by vettmanlt4, 11:24 AM 7/15/2002]
[Modified by vettmanlt4, 11:26 AM 7/15/2002]
[Modified by vettmanlt4, 11:50 AM 7/15/2002]
Team Owner
Joined: Sep 2001
Posts: 62,171
Likes: 1,735
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: My New Dyno with LT4 Mods (vettmanlt4)
hotcam could get you very close, but be careful that going to something bigger than hotcam (over 230/235 @ .050 i mean) on a 350 might cause some idle vacuum problems.
Melting Slicks
Joined: Dec 1999
Posts: 2,816
Likes: 2
From: Austin, TX
Re: My New Dyno with LT4 Mods (vettmanlt4)
I must be getting old -- I can't quite read the labels on the chart. What were the #'s?
EDIT: never mind! you must have edited it as I was posting
[Modified by MarkBychowski, 11:26 AM 7/15/2002]
EDIT: never mind! you must have edited it as I was posting
[Modified by MarkBychowski, 11:26 AM 7/15/2002]
Le Mans Master
Joined: Jun 2002
Posts: 6,097
Likes: 2
From: Cincinnati Oh
Re: My New Dyno with LT4 Mods (vettmanlt4)
It looks like you've made air flow mods (exhaust, intake), I would expect numbers to be a little higher, yours are not bad though. Compare your numbers with these...http://www.hashmarks.com/dyno_page.htm
LT4s are somewhat difficult to evaluate because the stock engines all perform differently with different hp outputs.
LT4s are somewhat difficult to evaluate because the stock engines all perform differently with different hp outputs.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Melting Slicks
Joined: Oct 2000
Posts: 2,726
Likes: 24
From: Freehold, NJ
Re: My New Dyno with LT4 Mods (vettmanlt4)
Same HP numbers as my Dad's car with similar mods. You're making more torque though, probably because of the headers. Check my sig for comparison
Burning Brakes
Joined: Mar 2001
Posts: 792
Likes: 0
From: San Jose CA
Re: My New Dyno with LT4 Mods (vettmanlt4)
I got a cam up for sale. I was planning on going to 400hp with it, its better than the hot cam but keeps its characteristics.
Check it out, its brand new never been used.
http://forums.corvetteforum.com/zerothread?id=334354
[Modified by enhance, 12:25 PM 7/15/2002]
Check it out, its brand new never been used.
http://forums.corvetteforum.com/zerothread?id=334354
[Modified by enhance, 12:25 PM 7/15/2002]
