Built Turbo Truck is DONE, PICTURES>>>

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S

Saabeh

10 Year 15 Year
Joined
Sep 5, 2007
Threads
4
Messages
27
Here it is finally.

Turbo_7.sized.jpg


Is that an intercooler?

Turbo.sized.jpg


Sure is.

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Vortec FMU, Forge Twin Piston BOV.

Turbo_1.sized.jpg


Garrett T3 on a custom equal length stainless header and downpipe.

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Custom dash with AFR and boost gauges.

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Engraving with a Dremel.

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A little bit of everything.

The truck is finally in a reliable and drivable condition. It like 14psi of boost. The turbo was just balanced and rebuilt. The next few things that need to be done are: finish the grille, make a better and bigger exhaust, change a U-Joint, and get a tune.

Would it be better to find a 22rte computer or figure out how to tune the computer. Right now, it goes a little bit lean when driving it normally. This only happens between shifts, or if you romp on it suddenly. Under boost, it is nice and rich.

Apparently, it shot a spiraling 10 inch flame out the tailpipe the other day, that's pretty cool :p.
 
That's pretty badass, can you hear it fiercely spooling up? Well done!:cool:
 
Smooth!

I get stopped or yelled at (in a good way, not like by cops or anything) at least once a week for the turbo whine on my 2LT-E. I can only imagine with the T3 on there how wicked cool it sounds. If you can get away with it, going with no muffler will really let the turbo howl. The only reason I put a muffler on mine at all was because it got a weird resonance going uphill at 40-45mph.

Nice work!

Dan
 
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Dayum. Those pictures give true meaning to the term "truck porn".

I'd like a nice hi-res shot straight down on the engine, from above. I need a new image for my desktop. Better yet, drive it up to Salem, NH so I can see and hear it, I'll take the pictures myself. Or I'll come meet you. Seriously.

Very nice.
 
First time visitor and only came because this thread was on top and the word turbo displayed on the main menu.

Nice job on the install and a few thoughts on the Turbo ECM.

I'd grab that ECM for sure. It might take some looking into but the turbo'd motor probably had larger injectors and a MAP sensor to help meter fuel when in boost. Both of these would be a good thing and unlike piggy backs you won't be sacrificing the safety net of fuel cut with it. It's also likely to retard the timing under boost as well.

All speculation on my part but this is pretty much the formula Toyota used back then.
 
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Yeah, that is a pretty generic formula for turbo cars. I am just wondering if I can work with the stock ecu and get it tuned to perfection.

The truck right now has a rising rate FPR and 340cc injectors. The mixture just gets off sometimes, but is always dead on under boost.
 
Saabeh said:
Yeah, that is a pretty generic formula for turbo cars. I am just wondering if I can work with the stock ecu and get it tuned to perfection.

The truck right now has a rising rate FPR and 340cc injectors. The mixture just gets off sometimes, but is always dead on under boost.
Click to expand...

340s seem awful large for stock injectors on a NA engine of that size. Did you swap those in?
 
Thanks for the tips, the 340's were swapped in. They are re-maned Nippon Denso from another car.
 
Saabeh said:
Thanks for the tips, the 340's were swapped in. They are re-maned Nippon Denso from another car.
Click to expand...

I looked around and from what I can tell the stock injectors are 190cc. Expecting the stock ECM to be able to work with those is asking a lot. The turbo ECM is designed for 290cc and you would have better luck with that in there than what you have.

Was swapping in the larger injectors a crystal ball install or where you addressing an issue post turbo?
 
Thanks for the tips.

The injectors were installed because it was still running lean under boost with a Walbro 255 and a Vortec FMU/RRFPR.

Right now it usually runs well, but it just goes lean randomly not even in boost. Under boost it stays rich all the way up.
 
The ECM calculates fuel trim % and those injectors are way over sized and it just can't do it's job and makes some bad choices. I'm thinking something in the 215cc range would still be within the ECMs ability but probably too small for when you're boosted. Since the Turbo ECM is set up for larger injectors that are more in line with what you have it will probably work much better.

How rich are you running at WOT?
 
I do not have a wideband unfortunately. Under boost it is rich enough, that is not what I am worried about. I could crank the fuel pressure way up on the FMU to cope with tons of boost. It is just the rest of the time it is not perfect.

Is the turbo ECU a plug in change with no modifications for a 1993 truck?
 
three things , stock comp is s*** for turboing, get a mega squirt two

fmu's suck, and

third is AFRs are crap , get a wide band and tune it properly 22r family of motors have head sealing issues as they are , so any lean runnign or detonation(early ignition with kill it ) and no one should have to do a head gasket more then once. get a rising rate fuel pressure reg so it is pound for pound of boost. then with the right injectors and fuel system you can make fun of the big trucks.
 
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