My boring Sunday
11-27-2005, 05:37 PM
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My boring Sunday Well, my little woman is working today so I was bored. So I took in a dyno tuning job to tune a 2004 supercharged Dodge Viper. Now before anyone goes off the deep end, I do know this is a LS1 board. But seeing how this section is for us Northwesterners. I just thought some of you guys and gals may want to know what the other guys are up to.
This Viper belongs to a local business man, I won't say what kind of business as he is fairly well known here and I don't know if he would appreciate me spilling the beans about his car. The Viper is a local car purchased new by the owner. It was modified by a local Viper tech at Timberline Dodge who I have known personally for about 30 years. This car has one of the new Paxton Novi intercooled blower kits making 8 PSI of boost. It is also equipped with an exotic traction control system that is used on the very high end road race Vipers. The heads were CNC ported by the cyinder head engineer that developed the original V10 Viper heads for Mopar. And the internals of the engine was highly modified for boost as well, the usual stuff like what we do, forged pistons, rods, roller rockers (shaft mounts) and a blower friendly cam.
After 3 hours of tuning, the final numbers were 644 HP and 622 Ft/Lbs
And these numbers are on my Mustang dyno which is supose to be notoriously low. I was rather impressed with the power this beast put out. In the begining we had some problems with the traction control that was causing an erratic power curve, and I had a problem with getting a decent tach signal. Once these issues were resolved I could tune the beast. I went from a baseline of 568hp to the final number of 644Hp. I have no idea as to what it was stock but my friend tells me its in the high 400's. It was a fun way to spend a Sunday afternoon, not to mention I made a dyno payment with this job 
His license plate reads: BYE BYE 
Here is the dyno sheet:
I added a couple pictures of the red snake. One shows the Paxton Novi blower and the inlet air filter which is nearly as wide as the engine bay!
This Viper belongs to a local business man, I won't say what kind of business as he is fairly well known here and I don't know if he would appreciate me spilling the beans about his car. The Viper is a local car purchased new by the owner. It was modified by a local Viper tech at Timberline Dodge who I have known personally for about 30 years. This car has one of the new Paxton Novi intercooled blower kits making 8 PSI of boost. It is also equipped with an exotic traction control system that is used on the very high end road race Vipers. The heads were CNC ported by the cyinder head engineer that developed the original V10 Viper heads for Mopar. And the internals of the engine was highly modified for boost as well, the usual stuff like what we do, forged pistons, rods, roller rockers (shaft mounts) and a blower friendly cam.
After 3 hours of tuning, the final numbers were 644 HP and 622 Ft/Lbs
And these numbers are on my Mustang dyno which is supose to be notoriously low. I was rather impressed with the power this beast put out. In the begining we had some problems with the traction control that was causing an erratic power curve, and I had a problem with getting a decent tach signal. Once these issues were resolved I could tune the beast. I went from a baseline of 568hp to the final number of 644Hp. I have no idea as to what it was stock but my friend tells me its in the high 400's. It was a fun way to spend a Sunday afternoon, not to mention I made a dyno payment with this job His license plate reads: BYE BYE Here is the dyno sheet:
I added a couple pictures of the red snake. One shows the Paxton Novi blower and the inlet air filter which is nearly as wide as the engine bay!
Last edited by tjwong; 11-28-2005 at 03:08 PM.
11-28-2005, 12:52 AM
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Those cars put up some serious numbers. It is amazing to me that you don't see more of them in shops and getting tuned to produce what they are really capable of (compared to 'Vettes, for example). Most that I have run into have been stockers and garage queens.
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11-28-2005, 08:06 AM
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Serious numbers for a Mustang Dyno! Kinda wierd how the power sags at 3300rpms...I would expect big tq down low from a blown 8L 10 cyl motor. Spool up? Still impressive tho!!!
11-28-2005, 01:52 PM
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Originally Posted by TwoFast4Lv
The questions is...when is GM giving us two more damn cylinders!!
After they fire 30,000 more people?.... GM is a sleeping giant right now....
Wow, what color is that car, oh ya red, I'll stay away from that beast. 
11-29-2005, 12:11 AM
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Originally Posted by Steve Goodwin
Enjoyed the write-up. 76 hp gain your customer must have been very pleased.
It has brutal power, and unrefined as compared to a C6 which can be called luxurious in comparison. 
