has anyone put a turbo on a 4.6? - TCCoA Forums
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post #1 of 102 (permalink) Old 01-16-2005, 04:45 PM Thread Starter
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has anyone put a turbo on a 4.6?

is it possible to turbo charge a 4.6? would any ol turbo work? has anyone done it yet?
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post #2 of 102 (permalink) Old 01-16-2005, 05:37 PM
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Yes, No, Yes

There is one turbocharged 4.6 TBird, and it's a totally custom job. I'm sure he'll chime in.

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post #3 of 102 (permalink) Old 01-16-2005, 05:48 PM
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He sure will.... Hey Bill???? Like Rich said man, Yes, No, Yes. SW has a single turbo installed all the way to the back, the camaro guys uses that setup because I think it's easy and probably because of the space. The problem with our cars is the lack of space. If you see under the hood, there's no way you can put 1 or even 2 turbos in the engine bay. Im not saying it's impossible, but if you want it done, you need to pony up the mula bro, not cheap. There's is alot of piping involved, hoses, IC, BOV, but like I said, not impossible. If you want to learn more about turbos, read the sticky, it will at least answer some of the general question about boost, etc. Hope this helped a little.

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post #4 of 102 (permalink) Old 01-16-2005, 07:44 PM
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Yup...been there done that. The one and only Turbocharged Modmotored Thunderbird.

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post #5 of 102 (permalink) Old 01-16-2005, 11:05 PM
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...that posts on Tccoa.

Some supercharged cars blow.......Others just pick up and move.
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post #6 of 102 (permalink) Old 01-16-2005, 11:29 PM
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...that anybody has ever verified to anybody else here...to the best of my knowledge...etc.

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post #7 of 102 (permalink) Old 01-18-2005, 10:17 PM
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I strange feeling Bill is patting himself on the back. I would be.

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post #8 of 102 (permalink) Old 01-19-2005, 11:52 AM
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I was told time and time again that it couldn't be done and that it wouldn't work. That just spurred me on to build it. It's still not perfect, but it's really nice so far. Just a bit more to do.

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post #9 of 102 (permalink) Old 01-20-2005, 12:12 AM
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Hey Sir William, do you have a web page with pics of your car? I've looked around in the members gallery and elsewhere and can't come up with anything. I need to see this engine everyone's talkin' about.

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post #10 of 102 (permalink) Old 01-21-2005, 08:59 AM
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come on dude please give us pic. i really want to do a twin setup on my street mark with a tubular k.

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post #11 of 102 (permalink) Old 01-21-2005, 10:11 AM
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I've got a bunch on my PC, but it's been having issues lately and giving me fits. As soon as I can get it stable for more than 20 minutes, I'll edit and upload the pics.

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post #12 of 102 (permalink) Old 01-22-2005, 03:12 AM
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how about these?

http://www.tccoa.com/turboproject/

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post #13 of 102 (permalink) Old 01-22-2005, 09:19 PM Thread Starter
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seems like you lose alot of power with the turbo all the way in the back? good install!
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post #14 of 102 (permalink) Old 01-22-2005, 10:53 PM
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There are much better pics. I need to pull some of those and categorize them on the turbothunderbird.com.

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post #15 of 102 (permalink) Old 01-22-2005, 11:03 PM
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Hey SW, I like the pic of the tires man


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post #16 of 102 (permalink) Old 01-23-2005, 09:48 AM
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Hey SW whens that going to be a bolt on kit ready for the masses

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post #17 of 102 (permalink) Old 01-23-2005, 11:54 AM
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If you start with a V6 there is plenty of room, for the 4.6...
This looks like it may be an easy conversion from Mustang to Tbird.
.
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post #18 of 102 (permalink) Old 01-23-2005, 01:56 PM
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yeah looks like the exhaust pipes route through the suspension and not the engine bay, but the mustang has a lot more room overall for routing and thangs than the bird does, but Im sure it would be possible.
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post #19 of 102 (permalink) Old 01-24-2005, 10:52 AM
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Hmm putting it way in the back... what about lag? Just seems like alot of pipe. Clean pipework though looks very clean. You don't plan to use that silicone coupler on an exhaust pipe do you? It will catch on fire if it doesn't melt first. You're gonna have to weld it. Use an exhaust flex section (either braided which is best or corrugated which is "ok").

Actually you might want to shield the air induction pipe from the exhaust pipe. Heat is the number one factor for detonation, and detonation is the number one factor in turning a turbo engine into a microwaved popcorn kernel.

What are you doing for fuel requirements for that biggie turbo? Just curious.

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post #20 of 102 (permalink) Old 01-24-2005, 11:12 AM
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well if you look closely, bill only has the silicone couplers on the intake piping, which is fine, the exhaust piping is welded. And the air filter should have absolutely no problem with heat seeing as its in the rear bumper getting plenty of open air, and it also has a water shield on it too.
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post #21 of 102 (permalink) Old 01-24-2005, 11:40 AM
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yeah i see it, mistook one of the pipes as the exhaust feed to the turbine housing. Cool, I'm on the same page now.

Yeah I suppose it does get alot more air than pipes in a bay. So the only question I still have is about lag.

And I guess the only way to have that one answered is gonna be from the owner when he tests it all, and lets us know at what RPM his boost hits full.

One nice thing about a turbo automatic is there's no gearshift to cause lag or stacking. Throttle plate just stays open the whole time you drive.

This is an intercooled setup, right?

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post #22 of 102 (permalink) Old 01-24-2005, 11:57 AM
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Yeah, there's 20 feet of pipe intercooling it.

I start building boost around 2600 and hit full boost by 3400-3600 depending on the gear. I'll get the new pics up soon....

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post #23 of 102 (permalink) Old 01-24-2005, 05:18 PM
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Quote:
Originally Posted by Sir William
Yeah, there's 20 feet of pipe intercooling it.

I start building boost around 2600 and hit full boost by 3400-3600 depending on the gear. I'll get the new pics up soon....
Man Bill... no room at all to fit that turbo up front? The 4.6 must be a real space hog, because I am certain I could do a single on my 5.0 just like a mustang.

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post #24 of 102 (permalink) Old 01-24-2005, 06:47 PM
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Go to a car lot and look under the hood of any 94+ V8 car. You'll see why mine's in the rear.

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post #25 of 102 (permalink) Old 01-24-2005, 06:52 PM
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Quote:
Originally Posted by Sir William
Go to a car lot and look under the hood of any 94+ V8 car. You'll see why mine's in the rear.
I'll have to look... I know those 4.6's are really wide compared to the 5.0.

Out of curiousity, what drove you to turbo your car, over the easier packaging of a SC?

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post #26 of 102 (permalink) Old 01-24-2005, 09:16 PM
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Many people have said that it's impossible to turbocharge a V8 MN12, and Bill proved them wrong. There will be another surprise soon..

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post #27 of 102 (permalink) Old 01-24-2005, 09:37 PM
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The packaging of my turbo was VERY easy. Everything fit with ZERO modifications to the car. That's kind of why I did it. Plus yeah, everybody said it wouldn't work.

Plus, pound for pound any turbo will beat any supercharger in raw horsepower any day of the week. Now the area under the curve will of course vary with each unit, but 10lbs from a turbo will beat 10lbs from any other forced induction type at peak horsepower....period. The size and shape of the hp curve is the touchy part. That's the part we have to concentrate on.

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post #28 of 102 (permalink) Old 01-25-2005, 08:20 AM
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So whats the numbers on it?

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post #29 of 102 (permalink) Old 01-26-2005, 01:55 PM
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Quote:
Originally Posted by Sir William
Yeah, there's 20 feet of pipe intercooling it.
No offense, but a pipe in the wind bears absolutely no comparison to decent or even a not-so-decent intercooler core.

Quote:
I start building boost around 2600 and hit full boost by 3400-3600 depending on the gear. I'll get the new pics up soon....
What is full boost set at presently?

You can further reduce your lag time by reducing the diameter of the pipe between turbo and intake manifold. Besides a lower volume to push through, smaller passages promote better fluid velocities (remembering that air is a fluid).

The same is true of the exhaust piping, but I wouldn't reduce it as much as I would the airpipe. You can also speed up the exhaust velocity by thermal wrapping the exhaust before turbo. It will retain more heat and hotter exhaust gasses generate more pressure which means more speed through the pipe and harder hitting of the turbine (it wil want to expand quicker outward through the turbine housing). Just make sure that the pipe AFTER the turbine housing is bigger and UNwrapped, so there's more volume for the expanding gasses to fill easier. The bigger the better. Don't worry about backpressure loss from a biggie pipe after the turbo, the turbine housing will provide lots of backpressure. And in fact, smaller piping before the turbo will also raise this and you could see some significant gains.

You can also use stainless steel instead of aluminized and this will improve exhaust velocities as it also retains heat better.

You might think those small changes aren't very significant but thermodymanics will tell you otherwise. You'll see noticable gains I am certain considering the lengths of the pipes in question, and considering the simplicity of your setup, changing to different diameters and material will be easy since most of your piping is straight from what it looks like.

Hey I am curious what you did to counteract debris and water. I see something like a black sock...??? I was in AutoZone the other day and they have this new half-cyllinder aluminum filter heat shield, but I don't see why it can't be used or even further modified as a debris/water shield too.

I admit I was skeptical at first but with the spool figures you provided above, and figuring in the suggestions on piping that I made, this is turning my skepticism into high interest. You have a good thing here for sure, not that you need my blessings or anything

I'm not sure if I asked before, but what have you done with the fuel requirements?

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post #30 of 102 (permalink) Old 01-29-2005, 09:33 PM
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Quote:
Originally Posted by Stoltz13
Man Bill... no room at all to fit that turbo up front? The 4.6 must be a real space hog, because I am certain I could do a single on my 5.0 just like a mustang.
The engine bay is pretty full, however if you aren't going to lower it, pull off a fender and take a look at the space over the tire. I think if you moved the battery to the trunk and used that space and the air box area for the TCs you could run the exhaust pipes inside the fenders. You would also need to re-rout your fuel lines so you wouldn't cross them with the pipes.
Yes turbocharging adds huge power. My other car is a 2.0L and has 50 more hp STOCK than my 'Bird has with the work I've done to it.

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