Apten Dyno Results

[tliss]

Well, I went to the dyno this weekend and what a difference! I gained at least 25 peak HP, but the before and after are on two different dynos. I ended up with 405/457 at the wheels. My A/F ratios are all out of whack, too (13:1 most the way across the band) so I need a reburn bad. I'm thinking my tune is what is holding the truck back, so I'm hoping to get it fixed this time.

One thing that was very impressive on the dyno is the Apten blower pitched out nearly 15 lbs of boost, and that was with only a 2# lower pulley! The other thing that the guy behind the wheel said that was pretty interesting was the boost didn't creep up; it jumped from 10# to 14# without hesitiation.:banana:

I can't wait to get a proper tune on this thing. I'm figuring I should top 410/500 at the wheels with the right tune.

Tom

[tliss]

Here are the dyno sheets. As you can see, it flattened out the torque curve and kept the torque near peak through 4600RPM, and the horsepower just keeps climbing!

Stock Program
http://www.svtgalleries.net/gallery/data/500/26Stock_Program_after_Apten-med.JPG

Summer Street
http://www.svtgalleries.net/gallery/data/500/26Summer_Street_after_Apten-med.JPG

Winter Street
http://www.svtgalleries.net/gallery/data/500/26Winter_Street_after_Apten-med.JPG

Look at those A/F ratios :eek2: :nono:

Tom

[Crawford]

Tom,

It was fun hitting the dyno with ya on Saturday. Once you get the chip thing worked out you should be able to get that 400/500 thing down no problem. Let me know when you go back to redyno the new programs, I want to see the results.

Hooters was a blast. You guys had me laughing my ass off! I have two words to say to you... DONKEY PUNCH!

[my2002lightning]

Tom,

Tune that monster and get her dialed in! :tu:

Ronald

[tliss]

Tom,

It was fun hitting the dyno with ya on Saturday. Once you get the chip thing worked out you should be able to get that 400/500 thing down no problem. Let me know when you go back to redyno the new programs, I want to see the results.

Hooters was a blast. You guys had me laughing my ass off! I have two words to say to you... DONKEY PUNCH!Right back at you :beer: . I'll let you know. I'm giving Danny a call today to see what he can do and I'll be sending the chip off to get it reburned in the next few days.

Those friends of your are a trip! I definitely need to party with you guys more often! DONKEY PUNCH!! :rll: Don't forget the order of business....donkey punch and then toss out the window :D !

Tom