Dyno #'s for SRT+VEC3

[Joseph Dell]

I had the pleasure of working with a VCA member from LA who made the trip to Atlanta so that he could get his car tuned. This car had an arrow rebuild on the motor when the #3 rod bearing went out. Mods are exhaust, headers, green filters, and a VEC3.

The car (when the VEC was zeroed out) experienced the same odd a/f dip that we frequently see on the SRTs. We corrected this.

here's the dyno graph from the end of the session:

Not bad for an almost-bone-stock car!

Joseph

 

[plumcrazy]

damn nice work JD !!!

 

[CuHead]

NICE! Got me thinkin' about doin' it.

 

[ViperTony]

Excellent! What was the AFR before and after?

 

[Joseph Dell]

The before was all over the map. in-line with the that on Steve's car. The AFTER on this car (post cat) was ~13.0 across the board. it goes to 13.3 at one area but other than that it was low 13s. This particular car liked to be just above 13.0 on the dyno whereas Steve's car liked just under. On the other hand, it is all post-cats readings so we don't know the true A/F. We just know it is richer than what it appears to be.

See http://forums.viperclub.org/showthread.php?t=604036 for a stock-looking curve and a modified one.

JD

 

[ViperTony]

Wow...believe it or not my RT/10 AFR is in the low 10's during WOT. I'm just beginning to get the tune going and hopefully I can get it nailed this coming week at Romar Racing. If not, I need to make a trip to Atlanta. Anyway, awesome work Joseph!

 

[plumcrazy]

tony, follow me down in august...

and say hi to kyle

 

[ViperTony]

tony, follow me down in august...

and say hi to kyle

I'd need a SC to keep with you on the way down. I will hopefully be at Romar on Thurs. They've been pretty busy.

- Tony

 

[FikseGTS]

nice solid results, any more details? car year, type of exhaust and headers?

 

[B767DRIVER]

Joseph you have a pm.

 

[MikeR]

Not bad, some cars need a good tune and I guess some dont. My buddies put down 496 rwhp with just headers and Corsa, no cats. He has stock tune.

But mine was way too rich and I ended up getting a tune and went from 466 to 487 rwhp after tune and removing cats, only other mods were Corsa and green filters.

 

[black mamba1]

Looks good Joe! I gotta come check you out soon!

 

[X-Metal]

good job JD, very nice.

 

[RayC]

Any dyno numbers on motor after arrow rebuild. Most of the motors they rebuild produce higher than stock hp when they're done.

 

[Joseph Dell]

This car had already had an arrow rebuild on it.

 

[Simms]

Awesome job JD!

 

[05Viper]

JD, I have an 05 with the mopar cam, exhaust and computer, if I made the trip up could you do anything with my tune or do I have to have the VEC3? I replaced the performance computer with the new performance computer to better handle the A/C so it is not the same one from my Dyno here. 456.9/467.6 af 11.5 were my numbers. I guess my question is: can a good tune be done on the mopar computer without VEC3?