My 03 Cobra
Thread Starter
Launching!
Joined: Nov 2004
Posts: 281
Likes: 0
From: Houston TX
My 03 Cobra Well I just got my Cobra dyno tunned today. It put down 458 RWHP and 503 RWTQ. They couldn't seem to get the car running right though. Chris at Houston Performance said he needed to talk with Diablo on Monday and I would need to bring my car back. It drives good except when you roll on the throttle it hesitates big time before it goes. Chris tried 4 or 5 times to make adjustments but nothing seemed to work. I just hope they get it running right on Monday.
Staging Lane
Joined: Mar 2005
Posts: 65
Likes: 0
my cobra does the same thing but it did not do it on the dyno but it does ot on the street mostly from a roll I also had my car tuned at HP with diablo products so post up your results if they fix it I have not had time to go back so we may have the same fix
Thread Starter
Launching!
Joined: Nov 2004
Posts: 281
Likes: 0
From: Houston TX
Originally Posted by snakebite
my cobra does the same thing but it did not do it on the dyno but it does ot on the street mostly from a roll I also had my car tuned at HP with diablo products so post up your results if they fix it I have not had time to go back so we may have the same fix
Trending Topics
Staging Lane
Joined: Mar 2005
Posts: 65
Likes: 0
Originally Posted by blakester
Just went to go for a drive and my car is sying left and right. when I come to a stop it's idling at 1,500 RPM's, that's if it doesn't die. This is just my kind of luck. I'm gonna have it towed to HP Monday morning. I will let you know what they say.
my car is not that bad it runs fine it only does it when I roll into at about 30 or 40 mph it does for a split second then goes keep me posted
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
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
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Thread Starter
Launching!
Joined: Nov 2004
Posts: 281
Likes: 0
From: Houston TX
Originally Posted by snakebite
my car is not that bad it runs fine it only does it when I roll into at about 30 or 40 mph it does for a split second then goes keep me posted
so did mine until I got home, don't know wtf is going on. I know it had major belt slipage on the dyno after 5,500 rpm but still doesn't explain what's going on. I will try to post up a pic of the dyno sheet this week. damn the car had 500 RWTQ at about 3200 RMP's!
That's right! 
I hate to cut on Houston Performance, but I have a buddy that they ripped off really bad on a dyno tune also. He had a Sean Hyland stang, and they could not get it tuned, tried like 8 different tunes then said sorry, pay us and take it somewhere else.
By the way those are bad *** numbers on the cobra.
By the way those are bad *** numbers on the cobra.
Thread Starter
Launching!
Joined: Nov 2004
Posts: 281
Likes: 0
From: Houston TX
Originally Posted by Mike TexaSS
Just tuned a stock 04 cobra today. Picked up 48 RWHP and 50 RWTQ!!
As soon as I gett the money I will be there. I wasted my money. Wasn't really impressed with HP at all, not very professional. Chris did give it all he had though and I do give him props for working with it as long as he did.