Early 1999 Dually Manual on the Dyno **Pics/Video/Questions**

[Saabeh]

I have a 1999 F-350 Dually with a 6 speed that I recently put on the dyno (barely fit!)

Anyways, it has a Riff Raff Diesel Intake (AFE), DP Tuner 8 position with 120HP race used, 4" Banks monster turbo back with muffler delete, wastegate unplugged running a max of 30psi on the dyno.

Stock injectors, HPOP, etc...

The truck made 237whp and 598wtq. I am wondering if that is low. I know the e99s are lazy, but I was expecting more.

I plan on doing the 140v IDM mod soon, but what should be my next move for performance? A modded 17* HPOP, injectors, turbo??

The truck has 134k miles as well. The clutch was replaced at about 120k, how much power will it hold?

Pictures:





Video:

YouTube - ‪1999 Powerstroke 7.3 on the dyno‬‏

YouTube - ‪1999 Powerstroke 7.3 on the dyno‬‏

[dazdillenger]

with a 6 speed, that is low. I'd make sure your hpop and fuel pump are maintaining pressure at higher rpm's. Do you have a graph?

[Saabeh]

Originally Posted by dazdillenger

with a 6 speed, that is low. I'd make sure your hpop and fuel pump are maintaining pressure at higher rpm's. Do you have a graph?

My graph got ruined in the awesome rainy day of the dyno, I'll see if I can salvage it.

What do people use to monitor data like this?

[dazdillenger]

auto enginuity, edge insight, scanxl, or another GOOD (not autozone) scanner.

scangauge would be a good idea as well. Maybe pick one of those up.

[Saabeh]

I figured the Auto Enginuity would be the one. Does the basic Ford package cover everything I need?

[dazdillenger]

no, you're going to need to get the enhanced ford in order to take full advantage.

[Saabeh]

Originally Posted by dazdillenger

no, you're going to need to get the enhanced ford in order to take full advantage.

Of course.

Well, this sucks. I was really hoping it was just a combo of being on a mustang dyno and having an e99.

[dazdillenger]

I'm not saying you have a problem, but 237hp to the wheels out of a chipped 6 speed is a bit on the low side. I could see that being reasonable out of an auto (still a little low IMO)

[7.3Lariat]

Torque number doesn't seem that far off but HP seems low. My 2000 made about 100 more HP but only another 100ft-lb than yours. Though mine is probably a little low due to the altitude. The truck was rated for what 520ft-lb at most from the factory and that was not at the wheels. Which with 15% loss gives you 442ft-lb at the wheels give or take so you are ~160ft-lb over stock, probably more because you probably have more than 15% loss. That isn't bad but yeah that HP number seems low. Do you remember where it made peak?