'tec Tb & Maf Swap Into Vulcan

[Dubeckyj]

Alright, so to accompany my composite UIM that's going on, I've got a 60mm throttle body and whatever size MAF off a '96 'tec. The throttle linkages look like they'll go on without a problem. Along with the MAF, I kept it on the top half of the intake box, and it looks like it'll fit right into my lower. The IAT is housed in the air box, so I might have to extend the wires but that's covered. The MAF plug is the same, so that's fine. The tube from the MAF to the TB has three vacuum connections, whereas the tube on my '97 vulcan only has two. I don't know what the third one is for, but I'm thinking I'll just seal it off. I don't know about electrically, but physically, it's completely plug & play. Am I forgetting about anything, here?

[ffvulcanpowah]

You'll need the airbox top from a Duratec. The bolt holes in the vulcan airbox are too close together to fit the 'tec maf. IF the car idles with the swapped duratec maf, chances are, it will run like poo. This swap is not the best idea without proper tuning to accomodate the larger MAF size.

The throttle linkage on the duratec TB should be different than your vulcan's. I had to swap cables when I used the g3 Tec TB on my vulcan. It's not a hard swap, just a bit of a pain to remove from the donor car.

You'll need an adapter or a good way to seal the 'tec tb to the vulcan intake manifold. The bolt pattern is the same, but that's where the exact similarities end. The IAT tunnel is positioned differently, and the opening in the vulcan UIM is smaller than the exit of the 'tec TB. The exit of the 'tec tb is larger than the rubber o-ring seal on the composite manifold.

You'll also need to flip the TPS around. In it's stock, rear-facing position on the 'tec TB, you'll encounter interference with the brake booster line on the composite manifold. When flipped (i/e in the positon that the vulcan TB has it in), there are no interference problems.

Physically, the MAF is a bolt-on project (with appropriate parts). The throttle body is not a straight bolt-on project when being attached to a vulcan intake manifold, but it IS possible.

[Dubeckyj]

QUOTE (FFVulcanPowah @ Mar 4 2010, 03:08 PM)

You'll need the airbox top from a Duratec. The bolt holes in the vulcan airbox are too close together to fit the 'tec maf. IF the car idles with the swapped duratec maf, chances are, it will run like poo. This swap is not the best idea without proper tuning to accomodate the larger MAF size.

The throttle linkage on the duratec TB should be different than your vulcan's. I had to swap cables when I used the g3 Tec TB on my vulcan. It's not a hard swap, just a bit of a pain to remove from the donor car.

You'll need an adapter or a good way to seal the 'tec tb to the vulcan intake manifold. The bolt pattern is the same, but that's where the exact similarities end. The IAT tunnel is positioned differently, and the opening in the vulcan UIM is smaller than the exit of the 'tec TB. The exit of the 'tec tb is larger than the rubber o-ring seal on the composite manifold.

You'll also need to flip the TPS around. In it's stock, rear-facing position on the 'tec TB, you'll encounter interference with the brake booster line on the composite manifold. When flipped (i/e in the positon that the vulcan TB has it in), there are no interference problems.

Physically, the MAF is a bolt-on project (with appropriate parts). The throttle body is not a straight bolt-on project when being attached to a vulcan intake manifold, but it IS possible.[/b]

Yeah, I read your topic about the TB swap, so I'm still looking for aluminum to do the adapter plate. I'm just having trouble getting the screws off of the TPS to turn it around without stripping them. I have the top of the duratec airbox, it's still attached to the MAF. I guess I'll wait to do this mod 'till I have an SCT tuner, then.

EDIT

Actually, why does it have to be aluminum? What happens if I use regular steel for the adapter plate, or even plastic?

[94clit]

You could make it out of whatever you want.

[ffvulcanpowah]

I chose aluminum because It's light, won't corrode easily, and was decently easy to work with.

You could use steel. It's just heavy, takes a lot more to machine (unless you have access to machining equipment), and is prone to corrosion/rust.

A thick piece of plastic that is able to withstand higher temperatures, and wont react to oil would work, too. Perhaps what folks make phenolic spacers from.

So yeah, aluminum is just a suggestion.

[Dubeckyj]

I made it out of some composite I found for $25. I was going to take some pics, but I'm pretty embarrassed of my shoddy workmanship on it. It took way too long for me to cut another piece and try again, though. It doesn't look pretty but it'll do its job.

I'm going to be grabbing a throttle cable for the 'tec this afternoon, and I'm waiting on an EGR tube still (my dealer had to order it in) so this swap won't be done for another week or so. In the meantime, should I place some of the leftover plastic in a bin of dirty oil and see if it corrodes? I have no idea what kind of material it is.

[ffvulcanpowah]

Couldn't hurt.

You'll likely hit a snag when you try to fit up the EGR tube. The rear exhaust manifolds between the g3 and g4 are different, including where the tube attaches to the exhaust manifold. IF it works, that would be most excellent, but I foresee it being a cut and paste affair.

[Dubeckyj]

QUOTE (FFVulcanPowah @ Mar 11 2010, 10:37 AM)

Couldn't hurt.

You'll likely hit a snag when you try to fit up the EGR tube. The rear exhaust manifolds between the g3 and g4 are different, including where the tube attaches to the exhaust manifold. IF it works, that would be most excellent, but I foresee it being a cut and paste affair.[/b]

Yeah, I've read the UIM swap topics. I'm going to try heating it first to see if it can be bent into place. Failing that, I'll be borrowing my neighbor's welder.

And I got one of the bolts out of the TPS. The other one is way too stripped. I'm going to try to cut a slot into it and try a different bit, but I'll probably end up drilling it out.

[shoz123]

To accurately tune the MAF you will need a Wide Band O2 sensor.

[Dubeckyj]

QUOTE (SHOZ123 @ Mar 11 2010, 12:07 PM)

To accurately tune the MAF you will need a Wide Band O2 sensor.[/b]

Why's that?

And I got the throttle cable. It was tough to get to, I ended up ripping off the UIM from the donor car so I could get to the housing bolts. And I stepped in a puddle. It was a most uncomfortable experience.