Contour Enthusiasts Group Archives Forums General Dyno and Drag Looking to compare Dyno Sheets

I am looking to compare my dyno sheet with anyone else who has somewhat the same set up. I am mainly looking to see how much torque I am losing by not having any or very little back pressure. I have noticed since I got the entire exhaust system on that I seemed to have lost low end torque. I have been thinking of maybe puttung mufflers on to help this.

Here is a list of my current mods.

K&N Filter
BAT Intake Pipe
Ford Racing 9mm Plug Wires
Bosch Plat. +4 Plugs
Weaapon-R Headers & Y-Pipe
Flex Pipe
Test Pipe
TruBendz Standard catback w/Magnaflow straight thru muffler

Pics of Dyno Sheet




Thanks

1) Backpressure helping low-end torque is a myth.
2) Your sheets look fine. You have gobs of low-end. Maybe you're just feeling it pull to redline harder because of more top-end?

I dont have headers on yet, only performance mods are intake, inlet pipe, sho shop y-pipe, and borla 2.25 exhaust.

Not sure if you can see the plot, but its 166 hp 153 tq as the highs. I hope to gain more torque with my headers!

Also the backpressure myth is indeed a myth, svtdriver's car dyno'ed higher on both torque and HP with no exhaust

Get rid of the bosch plats and get autolite double plats.

This is my un tuned 2.5 Mystique (and the installer has the MIL's on the primary O2 sensors.- I threw a code 10 minutes later..

151 HP 148 TQ
[image]http://www.cardomain.com/ride/2231339[/image]

Pete

Nice numbers.