DIY mods?

[chumminz01]

I got a 99 in my sig...close to bone stock. Is there anything I can do to help it get near the fuel economy/power of my cummins? I don't have the funds for a clutch so no crazy boxes. Its my workhorse and the only time i use it the truck is pulling a 30 ft cattle trailer. I keep hearing zoodad's and other acronyms?

[Rammstein1224]

First off do the DIY intake with the 6637 filter found here B085011 - 6637 - ECB DONALDSON REPLACEMENT FOR NAPA 6637 - Filter Products

Get some sort of tuner but that still starts getting a little pricey

Straight pipe it if you dont have emissions.

Get higher gearing but not if your towing alot

Clean your exhaust back pressure sensor and tube(theres a good youtube video showing how to do this).

As for the zoodad mod, i havent done it but from what i hear is it only reduces your EGTs it doesnt do much for MPGs

[chumminz01]

The 4.88s you would think are towing gears but its a roach.. Inclines it has to drop a gear and no more than 15 psi boost I'd hate to go to 410s or I'd have to get out and push it myself up grades

[Rammstein1224]

Originally Posted by chumminz01

The 4.88s you would think are towing gears but its a roach.. Inclines it has to drop a gear and no more than 15 psi boost I'd hate to go to 410s or I'd have to get out and push it myself up grades

Yea any heavy towing wouldnt be worth the change i have 5:13s just to turn my 44s and its rough going up some hill just with that not towing anything

[chumminz01]

What about unplugging the red wire on the turbo? Some sort of vac line maybe?

[Rammstein1224]

Originally Posted by chumminz01

What about unplugging the red wire on the turbo? Some sort of vac line maybe?

You mean the wastegate?

[chumminz01]

Yes, or will all that do is overspool since its got the little charger being a early 99

[Rammstein1224]

Originally Posted by chumminz01

Yes, or will all that do is overspool since its got the little charger being a early 99

Well the wastegate is there to prevent overboosting so if you disable that you run the risk of blowing your turbo. but it will definitely go fast up until it blows

[chumminz01]

When will it go past it's limits at what pressure?

[Rammstein1224]

Originally Posted by chumminz01

When will it go past it's limits at what pressure?

Oh idk most boost gauges go up to about 30 but i wouldnt wanna go that high. id image the bearing would fail or the wheel would break before it actually overboosts. Im sure somebody else can chime in that knows more about turbos but those things i said earlier are probably the easiest mods for mpg