Killed my own truck

[southern7.3]

Found out today my Super duty is way way way faster even on stock than my 96. Is it the gears the advanced motor or what? My super duty on stock settings will kill, I mean kill my obs. I don't like that. Is the obs just that slow. I do have to take into account it has a helatious flat bed/service body on it but dang.

What will make these obs wake up? A guy I know has the intake side of the charger from banks and he said he would give it to me. I know a TW chip would wake it up but I just didn't expect it to be this slow.

[southern7.3]

Bump.... .

[cndrm]

If you're looking to wake up an OBS, go check out the '94-'97 powerstroke performance parts forum. There are quite a few things they changed between the two generations of the 7.3L Powerstroke, that really changed the power. (i.e. injectors, HPOP, etc.)

Personaly, I would start with ditching the stock intake for a DIY (inexpensive) or aftermarket (pricey), then the exhaust, cut out the cat, and go with a turbo back exhaust. (primarily ditch the stock DP, and cut out the cat) Just those two things will really wake up an OBS. It still won't be a SD, but more like right inbeween an OBS and an SD.

mike

[Cj Ford]

obs has amaller injectors and smaller turbo .. and id almost bet the gear ratio is not the same either in the diff

[Dave]

Yeah the OBS probably has either 3.55s or 4.10s
You need a good chip, turbo and injectors to keep up to superduty.

[southern7.3]

Yea its got the 3.55 gears. I knew it would be slower than my superduty but dern.

A guy has a banks turbo intake charger side and banks wheel. Will that help out any? He said he would give it to me. Im not crazy about making big power with it. It needs to be really reliable for the next 2-3 years. After that im gonna get another superduty. I just figured with the money I can get out the super duty I will have one nice obs when im finished. Gonna hate to see the super duty go though. Its got over $200 in stickers lol. And she was my first diesel. Traded my first love, my 92 coupe, saturday and now gonna let the super duty go.

Gonna get the vin numbers ran at a local dealership tomorrow to see what was all done. I was told it had a new motor put in at a Ford dealership in 04. Seems like I got a straight truck.

I think my up-pipes are leaking at the gasket....Is it as simple as unbolting it and putting on a new one?

[97powerstroker]

why are you getin rid of the sd? also the obs has a 1.10 turbo housing .so unless the banks housing is smaller like a 1.0 or .84 housing,you wont see a perf. gain.

[southern7.3]

Originally Posted by 97powerstroker

why are you getin rid of the sd? also the obs has a 1.10 turbo housing .so unless the banks housing is smaller like a 1.0 or .84 housing,you wont see a perf. gain.

MONEY. I can get more for the super duty then I could the mustang. The super duty has many more miles than the obs and I have some people already interested in the SD. I like the way my 99 looks a lot better but I want something a little different anyway. The obs gets better mileage than the 99. The 96 isn't as powerful, or so it seems, it has smaller gears but its ok. If I could keep both I would but one has to go. It isn't set in stone that the SD is out yet but its promising.

Im not gonna take it off the rode and put it up for sale until I know everything is all good on the OBS. Don't want any surprises. Gonna do it right the first time.

[cndrm]

Originally Posted by Cj Ford

obs has amaller injectors and smaller turbo .. and id almost bet the gear ratio is not the same either in the diff

Actually, the OBS turbo is larger than the SD. The turbo housing was scaled down for the SD's to speed up turbo spool time. The SD's injectors are larger though. (and the HPOP is a 17* instead of 15*, therefore creating higher fuel injection pressures)

I'm glad to hear you're really doing a lot of research on the OBS. They can carry some secret little quirks. (the truck being a one owner vehicle is great, especially if the guy can sit down and "tell" you, everything the truck has thrown at him.

There really isn't that much that seperates the OBS motors, from the SD motors. Just a few things here and there. Other than that, it's the same motor.

I've heard "REALLY" mixed things about stuff that Banks puts out for the OBS trucks. Generally speaking, I haven't heard anything good, except for their IC pipes and octopus. (IC replacement for the "Y" pipe)

As for gearing, I'm not sure what the SD's come stock with. The 3.55 gears, would be better for high end cruising on the highway. The 4.10 gears are better for towing (i.e. low end)

To match up with a SD truck, you'd want to open up the intake and exhaust. Then, replace the injectors, HPOP, and get a good chip.

mike