Thinking of a turbo upgrade

3156 Views 11 Replies 5 Participants Last post by XR2B6T, Sep 22, 2008

mx6 z28

Discussion Starter · Sep 20, 2008

I own a 90 mx6 gt with some minor upgrades and at the moment have it at a friends shop getting the head redone new seals, water pump and timing belt.
So I have basically made everything else like new on this car mechanically except for turbo and am deciding on whether im going to upgrade to a bigger one or get a new stock or t-bird???

So a list of some of the mods are here:
- 88 stiffness racing motor and tranny mounts
- dual friction stage 3 clutch and pressure plate with machined stock flywheel
- cold air along with 2.5 turbo back exhaust with high flow cat.
- probinator chipped ECU
- ngk electrical
- hks evc pro 3 boost controller
- lock tightened shift gate
- new drive shafts, alt, pwr steering, distrib................

So that being said I was hoping to get some helpful hints towards a good upgrade for turbo on my car without having to do to much else to adapt it in to my current setup.
I don't mind doing a injector upgrade or sum but just don't wanna get to crazy with it.
I know of the t-bird upgrade but read up on it some time ago and heard the increase in power was not to serious at all and it had alot more lag. What are some thoughts on that?
I'm still currious about this one though because it is direct bolt on to our stock manifolds if i'm informed correctly.

Are there any benefits of our stock turbos over the t-bird turbo that might make me wanna consider just keeping it?

What is the next step up from even the t-bird turbo?
T3/t4? And what all is involved in trying to accomplish the next step up turbo setup? IT would be nice to sit around 250 or more hp with more then 3001b-ft.
Reliability is very important at the same time to me.

Any suggestions or inputs/ideas will be very much appreciated and I send respect your way.
Thanks for your time.
DREW.:smokin:

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mx_masta

· #2 · Sep 20, 2008 (Edited)

The next logical bolt on step up would be an older Subaru IHI turbo.

Read through the thread in my sig' and you'll see what the extra work over the T-Bird hybrid involves.

There is a VF12 on E-Bay UK for only 20 pounds.

VF12 TURBO SUBARU IMPREZA TURBO CHARGER - eBay, Subaru, Car Parts, Cars, Parts Vehicles. (end time 22-Sep-08 04:00:00 AEST)

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Zach

· #3 · Sep 20, 2008

T3 60 trim would be a great choice

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mx6 z28

Discussion Starter · #4 · Sep 21, 2008

Zach said:
T3 60 trim would be a great choice

Ok thanks Zach. Now what all is involved in that swap inorder to get her working proper?

Thanks!
DREW.

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mx6 z28

Discussion Starter · #5 · Sep 21, 2008

mx_masta said:
The next logical bolt on step up would be an older Subaru IHI turbo.

Read through the thread in my sig' and you'll see what the extra work over the T-Bird hybrid involves.

There is a VF12 on E-Bay UK for only 20 pounds.

VF12 TURBO SUBARU IMPREZA TURBO CHARGER - eBay, Subaru, Car Parts, Cars, Parts Vehicles. (end time 22-Sep-08 04:00:00 AEST)

Will that IHI turbo hook right up to my stock exhaust manifold or would a custom welded adaptor plate have to be made?

Thankyou!
DREW.

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mx6 z28

Discussion Starter · #6 · Sep 21, 2008

Was also wondering if there are any after market header or sum for f2t engines that fit bigger turbos? Maybe a kit of some sort.

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mx_masta

· #7 · Sep 21, 2008

Will that IHI turbo hook right up to my stock exhaust manifold or would a custom welded adaptor plate have to be made?

Bolt on.

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Zach

· #8 · Sep 21, 2008

mx6 z28 said:
Ok thanks Zach. Now what all is involved in that swap inorder to get her working proper?

Thanks!
DREW.

T3 flange welded to the stock manifold, oil drain, inlet adapter, downpipe, etc. The turbo's are good for 250+ horsepower with supporting fuel mods.

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mx6 z28

Discussion Starter · #9 · Sep 22, 2008

Thanks again mx masta and zach for the advice.
One question for mx masta though is how much hp and 1b-ft would this turbo mod make on my f2t? Also what if any other mods need to be made fuel wise or anything?

DREW.

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maffatato15

· #10 · Sep 22, 2008

well if you are going to upgrade your turbo you should buy a wide band for tuning. And it all depends on how much psi you plan on running for hp and tq.

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mx_masta

· #11 · Sep 22, 2008

Thanks again mx masta and zach for the advice.
One question for mx masta though is how much hp and 1b-ft would this turbo mod make on my f2t? Also what if any other mods need to be made fuel wise or anything?

It's like maffatato15 says, hp output is dependant on boost and tuning.

That said it has been hard to find solid info on the VF12 but most estimates point at a 300hp (@ the crank) limit on compressor flow.

That should equate to about 230 - 250hp at the wheels on your MX6.

The problem is that it takes a very good tight tune to get that on the stock fuel system.
It can be done, has been done but it's right on the ragged edge of the fuel system capabilities.

That said a wideband is a good idea, because it will let you know if you are going to get into trouble upping the boost.

A better idea is a properly dyno'd custom tune which you cannot get with a one size fits all chip.
The closest any chip for our cars comes to that is the Woo's mod.
It was written step by step and dyno tuned after each rewrite by Barry (Woo)

So far he has only done chips for the aussie delivered MX6's and TX5's.
AFAIK the ECU's have different part #'s to the US delivered one's (don't know 'bout Canada though)

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XR2B6T

· #12 · Sep 22, 2008 (Edited)

Yes there is a couple different aftermarket T3 Turbo manifolds for the F2T. All here: JGS Precision Turbo

You would have to either weld a T3 flange on your manifold or buy a JGS T3 Turbo Manifold for the F2T. Spendy but all worth it if your looking for that much power.

JGS Precision Turbo

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