808MIKE

Hey all...Finally got my truck on a Dyno to do some Data logging for my tuner. Which is Justin at VMP. Got my Roush SC installed about 2 months ago....Only Mods my truck has is a Somewhat custom Cat-back Flowmaster 40...3in Inlet/Dual 2.5 outlet no resonator. Truck has 3.31 gears....Tried getting logs on street but too dangerous. so had to get on a dyno....it was a Dynojet....So called Heartbreaker at this shop. Did the runs in 3rd gear up to 6500rpm. Had some spin on the dyno so not sure if that took away some numbers on the dyno. this tune was somewhat off the shelf tune....never data logged...and it's only for 91 octane. he'll be making me a hotter 92 octane tune after I send these logs. as we don't have higher than 92 Octane in Hawaii! ...Sucks! But anyway these are the number my truck put out....479whp /453tq. Runs were done back to back truck never cooled! which I did not like. Maybe I would have higher numbers if they did some cool down times! What everyone else got with this kit? and how much HP is my truck making? close to the Kit's 570HP...or more or less? LMK!

engineermike

Post the dyno sheet if you get a chance.

808MIKE

Ok will do....But they never get any AFR data....and I read my Tuners log info sheet wrong....I was supposed to dyno in 4th gear not 3rd! Ughhhh

808MIKE

Here my sheet.

engineermike

Next time you dyno, try unhooking the muffler. I've gained 40 or more hp when unhooking chamber type mufflers like flowmaster.

808MIKE

Hmmm thanks...I'm going to change out my Flow...to the full 3 inch Roush system....and Im still working with my tuner to get revised tunes....if I datalogged correctly. I never got a revision since he sent me this tune to run my Roush SC. So hopefully he can finally play with it seeing my logs...and get more WHP!!