1999 Ford F150 V6 Turbo

6 Shooter

Well-Known Member
Hey--Great photos and explanations with having work arounds to get things to fit. You are nearly there. Was told one time that when there is no more room under the hood, your modding is done. Found that to be true with my car. Will also say 400 to the wheels is BAD ASS. My rear tires are on 10.5" rims and 315's on the widths. Still slip the tires when turbos go into full boost around 3000 RPMs with the boost controller set to only 10 lb boost for the street. When you drop the hammer, better be in a straight line with no cars in front of you for at least 1/4 mile. Have someone take a photo of your white knuckles at the time.
 
It lives!!!!!!!! Open turbo, and a few things left to button up. I don't even have coolant in this damn thing. But I really needed to hear this thing to give me some hope.

And yes, that IS a little strut at the end.

 
Bam! Now I have a down pipe! I still have to connect the wastegate to the downpipe and finish the rest of the exhaust. I am not sure If I will use the stock muffler and exhaust or straight pipe it.
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6 Shooter

Well-Known Member
Could not tell, but are you using a 3" down pipe all the way to out the back? Will say that turbos really cut the exhaust sound way down. Am running twin turbos with 3 inch down pipes to the ball/socket connectors and then twin 2 3/4" exhausts with H-pipe to twin turbo mufflers (minimal back pressure). Then twin 2 1/2 mandrel bends over the axle. This setup sounds real good, but not nearly as loud as with the ProCharger. Think you would be disappointed with a stock muffler which increases back pressure.
 
Could not tell, but are you using a 3" down pipe all the way to out the back? Will say that turbos really cut the exhaust sound way down. Am running twin turbos with 3 inch down pipes to the ball/socket connectors and then twin 2 3/4" exhausts with H-pipe to twin turbo mufflers (minimal back pressure). Then twin 2 1/2 mandrel bends over the axle. This setup sounds real good, but not nearly as loud as with the ProCharger. Think you would be disappointed with a stock muffler which increases back pressure.

That is 3" pipe from the turbo to the back of the truck. At this point I will not be using a muffler, but that will most likely change. I like a nice loud exhaust, but I am also getting kinda old, so I will make that decision then. Since this is on a truck I may be able to get over the rear axle with minimal bends. I am tucking it up as close to the bed as safely possible, which should only require a 30 degree bend to allow axle clearance.
 
Quick shot showing the turbo oil feed line and the blow off valve line. Both of which are -4an.

The blow off valve line is connected to a 1/8npt to -4an adapter. I drilled and tapped an existing vacuum port, I also drenched the adapter in epoxy for good measure.
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The front half of my exhaust all done. Well, almost, I still need to add a few hanging points and connect the wastegate to the downpipe. Then wrap from the turbo to the first v-band with header wrap.
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Since I had the materials laying around, I decided to make my own muffler. It turned out pretty good. Not as pretty as I wanted. I am purposely not showing you the weld that closes the middle of the muffler. It looks horrible. I mean, Stevie wonder probably could have done better. I kept burning through the thin sheet metal. When it's mounted, I will be turning the ugly weld to the top where it can't be seen.
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Exhaust is done, for now it dumps before the rear axle pointing at the passenger tire. Once I have some spare cash to buy a few mandrel 180's it will go all the way to the rear bumper.

I duplicated the factory exhaust mount under the trans tailshaft. It is so solid, I can do a pull up from the exhaust.
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Deceptively plain looking. Missing turn signals, dents and dings everywhere, and ready to surprise douches at stoplights everywhere.

Ill get better pics tomorrow, it didn't move under its own power until 8pm, but I couldn't resist snapping a few now.
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Finally got the truck to the dyno. Had some fuel issues though, ran lean at 4500 rpm at 8psi. The motor is built to turn 6k rpm and have a 15psi spring in the gate.

I have 3 solutions to the fuel supply issue:
1. Replace the stock supply fuel line with -8an hose and filter.
2. Replace the stock wiring to the fuel pump with heavier gauge wire.
3. Add multiple hose clamps to the hose that connects the pump to the hat.

Until then, here is the current dyno run and power numbers. More to come in 2 weeks.

334hp and 350tq

 
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