SC- 1st Gen (1992-2000)

Supra 6-spd

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Old 03-21-03, 07:26 AM
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SpeedPunkX
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Default Supra 6-spd

Does anyone know if the Supra 6-spd can replace the 4-spd auto on a stock SC300 motor?
Old 03-21-03, 07:28 AM
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jwar
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I think it can be done but you will likely need lots of modifications.
The 5spd supra/sc300 that goes with the 2jz-ge motor can handle up to something like 600hp and bolts right on. There isn't really a point on going with the 6spd.
Old 03-21-03, 07:46 AM
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SpeedPunkX
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Well, here's my reasoning: It's so rare to find a 5-spd SC300, so I was wanting to but the auto and just replace the trans with the standard. I figured...if i'm going to get a trans replacement anyway, why not just go with the 6-spd? If anyone knows of someone selling a SC300 5-spd it would be so much easier. I'd be more than happy to either trade for my SC400 or if they just want the cash I can do that too. Looking for something under $13000 US.
I have pics of the SC400 if anyone is interested.
Old 03-21-03, 07:55 AM
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bmsport
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Finding a 5 speed sc300 isn't all that hard, you just have to look and have some patience. It took me less than a month and i found a 1992 5 speed for $7000. It helps to have liquid cash so you can ****** the right one up quickly before anyone else gets to it. Check out ebay, autotrader, etc. If your budget is $13k, you can pretty much have any sc300 5 speed that comes on the market. But i'd say go with the 5 speed to save yourself the headache. Or just do a 1jz soarer swap with the auto tranny.
Old 03-21-03, 08:00 AM
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SpeedPunkX
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Thanks a lot guys.
I'll definately keep looking.
Old 03-21-03, 08:08 AM
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quikturbo
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Originally posted by jwar
I think it can be done but you will likely need lots of modifications.
The 5spd supra/sc300 that goes with the 2jz-ge motor can handle up to something like 600hp and bolts right on. There isn't really a point on going with the 6spd.
jwar,
unfortunately the 5spd , w58, that does come with the lexus will not withstand 600hp, let alone there are no clutches made for this trans that will truly hold that much power as well. If this were the case I would be ecstatic to keep my 5spd instead of swapping in the 6spd. The 5spd has proven to hold around 400hp give or take.

Another thing to consider is the open diff. on the Lexus. It would be a good idea to either install a TRD lsd, or us a supra rear to ensure a bit more traction

Last edited by quikturbo; 03-21-03 at 08:10 AM.
Old 03-21-03, 08:18 AM
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jwar
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My bad, I was thinking of the R154.

This is where I remembered it from: (3rd response down)
https://www.clublexus.com/forums/sho...&highlight=w58
Old 03-21-03, 09:31 AM
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quikturbo
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Honest mistake You don't even know how bad I wish it held that much power
Old 03-21-03, 09:42 AM
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jwar
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Sorry I bet you gasped when you saw that a w58 could handle that much power and then cried when you realized I was wrong.

Why do you need a tranny that can handle over 400hp anyway? What are you running? Aren't you going to need to upgrade your fuel if you go much more than 400hp?

This kills me, you're complaining about being limited to 400hp. I have an auto!
Old 03-21-03, 10:05 AM
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quikturbo
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jwar,
I've actually just about finished my gte motor swap into my sc300. I'll be going with a moderate size single turbo later this year :crosses fingers: I'll definitely be making too much power for the 5spd. So the 6spd is inevitable.

I feel for your auto, but you do have the sp trans as a solution
Old 03-21-03, 11:17 AM
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jwar
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Wow, you're the guy with that sweet swap. I saw that thead 3-5 months ago.

So, if a w58 bolts up to a 2jz-gte then that must mean that a getrag 6spd will bolt up to a 2jz-ge motor.

If you're going single turbo youre most likely going to need a big fuel upgrade. Could get expensive. Especially with something big like a t78. You wont need one, however, with a smaller one such as the sp57.

Whats the sp tranny?
Old 03-21-03, 11:42 AM
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Yes the 6-speed bolts up to the sc300, but only on some model years due to the trannel tunnel. It was no problem on my '95 5-speed.

As for fuel upgrades, big power doesn't necessarily mean big fuel system cost. The stock TT fuel system is good to 500rwhp. That's big enough for me. Consequently, one Walbro, 720s, and the TT fpr should do the job all for about $730. That's what I'm going with.

-scott

Last edited by motorheaddown; 03-21-03 at 11:44 AM.
Old 03-21-03, 11:46 AM
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quikturbo
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You're correct about the 6spd bolting up to the ge block, just ask Scott (motorheaddown).

Also correct on the fuel system upgrade. I used to own a T78 supra, and built my own dual pump, dual line, fuel system on that car, so it should be a piece of cake. I can build a system for around $1400. Still have my parts list if anyone is ever interested.

Sound Performance takes an TH400 GM tranny and mods the bellhousing a bit to fit it up to the gte block. My buddy, just got his back from them. It's a 3spd auto, but will handle a crap load of power!

Chris

edit: you beat me to it Scott

Last edited by quikturbo; 03-21-03 at 11:47 AM.
Old 03-21-03, 11:54 AM
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motorheaddown
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Chris,

Sent you a pm.

-scott
Old 03-21-03, 06:33 PM
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quadoptix
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Default tranny swap

got a quick question for you all, besides the tranny tunnel needing to be hammered a little bit, what else needs to be done for this swap to work in full? (tranny wise to a 2jzge) ive done multiple searches for everything, but there is not a thread i found to have details of everything...thanks people
Mike


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