Choppy dyno
Thread Starter
Burning Brakes
Joined: May 2005
Posts: 920
Likes: 56
From: Muskoka Ontario
Choppy dyno
I just got back from the dyno with my 93. From 0 to 5000 it is nice and smooth, from 5000 to 6300 it is very choppy, does anyone have any ideas. Everything has been replaced opti, wires and plugs. By the way she made 347rwhp and 334 ft lbs of torque.
Thanks
Fred
Thanks
Fred
Le Mans Master
Joined: Mar 2001
Posts: 9,464
Likes: 1
From: Modesto CA
Originally Posted by fredk
from 5000 to 6300 it is very choppy.
Drifting
Joined: May 2004
Posts: 1,747
Likes: 0
From: Port McNicoll Ontario
347/334 is pretty good fred.
Just for fun my dyno last year showed 220 rwhp/323 lbs torque.
What were you expecting or hoping for?
Sorry, can't help with why it's choppy.
Jeff
Just for fun my dyno last year showed 220 rwhp/323 lbs torque.
What were you expecting or hoping for?
Sorry, can't help with why it's choppy.
Jeff
Last edited by 87 rag; Jun 16, 2006 at 09:21 AM.
Race Director
Joined: May 2003
Posts: 10,749
Likes: 41
Those # sound like around 425chp. I gain of approx. 125chp from stock.
If your ignition is stock, I think that might be the problem, but then again, I cant see much more then 350rwhp from an automatic with your mods, I think your doing good!
Now get some tires, and start running low 12's! You have the MPH to run solid 12.30's. I smell 1.70-1.75 60 foot's.
If your ignition is stock, I think that might be the problem, but then again, I cant see much more then 350rwhp from an automatic with your mods, I think your doing good!
Now get some tires, and start running low 12's!
You have the MPH to run solid 12.30's. I smell 1.70-1.75 60 foot's.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
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
Race Director
Joined: May 2003
Posts: 10,749
Likes: 41
Originally Posted by 87 rag
347/334 is pretty good fred.
Just for fun my dyno last year showed 220 rwhp/323 lbs torque.
What were you expecting or hoping for?
Sorry, can't help with why it's choppy.
Jeff
Just for fun my dyno last year showed 220 rwhp/323 lbs torque.
What were you expecting or hoping for?
Sorry, can't help with why it's choppy.
Jeff
you torque monster you.....
Melting Slicks
Joined: Mar 2003
Posts: 2,472
Likes: 0
From: Toronto ONTARIO
Originally Posted by fredk
I just got back from the dyno with my 93. From 0 to 5000 it is nice and smooth, from 5000 to 6300 it is very choppy, does anyone have any ideas. Everything has been replaced opti, wires and plugs. By the way she made 347rwhp and 334 ft lbs of torque.
Thanks
Fred
Thanks
Fred
Hook up a fuel pressure guage to the schraeder valve and tape it to your windshield. go for a drive and hammer it in 2nd gear + and see if the pressure drops or gets shaky at those rpms. if so its probably the pump
