🔧 BUILD My MKIV Supra build-ish thread...big boy 3.4L motor time

General Information

Most of you that have access to FB have probably already seen this but I did part ways with my Turbo TA yesterday. I've owned that car for over 10 years and took it from completely stock to a monster that is easy to drive and fun to thrash. I will miss that car but where I am in my life is I'd like to slow it down a bit and just have some cruisers and the TA deserves better than what I'm will to do with it. I think it's got everything to be competitive in the right hands. The new owner is a good friend of mine and lives less than a mile away from me so we will be seeing each others cars often that's for sure so it's not gone gone. This was not an easy decision but a combination of right place, right time, right person and right price as I had to come up with some cash on the difference. I would never sell this car normally as I don't think I could trust someone to not hurt themselves in it, but the new owner is more than capable of handling it and I'll be able to still see it perform at the track albeit from the sidelines and not in the drivers seat.

Edit: I'm going to turn this into a mini build thread and document some progress

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Pressure Ratio

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Nov 11, 2005
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Glen Ellyn
I just watched about a minute of you driving the car. Seems like the conversion went well and works as expected. Even better when it came to the shifter. If you want to smooth out the shifter action you can always add a weighted shift knob. In my experience, they work well. The heavier the smoother they feel. I have used a 125 gram to 485 gram knob and they all made a noticeable improvement. If after driving the car for a while you think the action isn't exactly what you are after.

Is the open diff next on the list of things to change? Is that a big deal or pretty basic swap?
 

willizm

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May 13, 2009
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I'll keep the weighted shift nob in mind. I have about 30 miles of driving so far. Drove a little this morning before work and the car just feels real solid. At low rpm in 3rd/4th gear you do hear some of the gear noise but I think i recall that being normal for a t56. I'll just keep my rpm up a little higher. I may try the weighted shifter but it's not annoying. Just something I noticed on my first impressions.
 

Pressure Ratio

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Nov 11, 2005
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Glen Ellyn
Some times fluids can help quiet down gear noise as well. Is it a rubber or poly trans mount? Poly may contribute to that as well.

The weighted knobs work. I know in some circles they are easy to come by used. A used one is nice to see if it is to your liking. Can't be any easier to install. lol



It will also be interesting to see how the turbo comes on. Between the gearing in the trans and rear end and how it loads differently than the auto. But I am sure it will be all kinds of fun to drive.
 

willizm

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May 13, 2009
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The Woodlands, TX
Some times fluids can help quiet down gear noise as well. Is it a rubber or poly trans mount? Poly may contribute to that as well.

The weighted knobs work. I know in some circles they are easy to come by used. A used one is nice to see if it is to your liking. Can't be any easier to install. lol



It will also be interesting to see how the turbo comes on. Between the gearing in the trans and rear end and how it loads differently than the auto. But I am sure it will be all kinds of fun to drive.

I got into boost a little bit this morning an man is it a totally different feel than the auto. RPM's climb up fast so I'll have to get use to that.
 

willizm

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lol short shift for a while until you get accustomed to that rpm climbing so quickly. I can imagine the stock gearing in a 1990's era auto isn't very aggressive. Should make for a good time though!

I switched out the diff so whats in it now is a 4.27 while stock the auto came with a 3.76. Grannas said the sweet spot for these transmissions is 4.08 which i'm not that far off considering i'm on a 28" tire.
 

willizm

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May 13, 2009
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I've got a couple hundred miles on the car so far. With the 4.27 gears I sit at around 2200rpm at 70mph on the highway in 6th so I think i'm going to keep that gear ratio. I need to get my differential out to a shop to rebuild with new bearings and a spare 4.27 ring and pinion gearset I have. Then it's off to the dyno for a good tune and all that fun obnoxious antilag and rolling antilag stuff like they demonize on the news.

#StraightPipedExhaust lol

Z4RXHIx.jpg
 

willizm

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May 13, 2009
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The Woodlands, TX
Your best! Losers always whine about their best. Winners go home and fuck the prom queen.
Well I still got to talk to Larry and see if he wants me to stick around and get it done today or if it’s not going to be done today I’ll head home. If he’s jumping on it first thing then I’ll be here for glorious videos and stuffs
Nice job. Not too surprised on the T56 part. For some reason V161s seem to have gone through the roof. We all know that the only autos you really want in a Supra are GM anyways. :rofl:

I gotta put some gm into this car. :D
 

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