5spd to auto?

[Toyota h8r]

Agreed. Sports cars were not meant to have auto transmissions in my opinion. If you get one that already has an auto in it, fine. But if you're replacing a manual transmission (and the R154 at that!) with an auto then you are ruining the car.

My guide to the 5-speed to automatic conversion is very similar to my guide on converting a hard top to a targa top:

1. Sell manual transmission car to someone who wants a manual. There are plenty of people who would pay more for a manual.
2. Buy an automatic.

Heres the thing, the prev owner started the swap. All ive got is a r154 that got thrown in with the car! Nothing else. Also, the comment about sports cars not supposed to have auto tranny? Me confused! Some of the fastest cars around my area are autos. But anyways...thats something to discuss in off-topic! Not my cup of tea.(auto supee) Boosted supra=r154! Thats my idea.

 

[Yellow 13]

HTML doesnt work here...

 

[swaq]

Depends on your definition of fastest I guess. If you mean in a straight line, then sure, of course. I certainly don't drive in a straight line all the time, and the most fun I have when driving the Supra is when I'm going around corners and can pick the gears.

Since it's already been started I can't blame you too much for finishing the job

 

[Toyota h8r]

Just a quick question, can you use a n/a block and crank with turbo pistons/rods? My phone doesnt let me search sm. I love manual shifted cars! FTMFW! Also, how do you break a r154? The guy said first gear had broke, so he started to swap!

 

[Yellow 13]

Cranks the same for turbo and N/A. The block is different, but yes you can use it by easily changing a few things.

R-154's do break, just like any other part of a car. Just takes a little more effort.

 

[NickSupra]

don't make the mistake of switching to auto.

Is this kid even old enough to drive:icon_roll

 

[rakkasan]

how is that true? i thought they were all the same?

The turbo & N/A trannys are different. The turbo trannys have one additional steel plate & friction plate in the 2nd & O/D brakes. They are a little beefier, but still very fragile.

 

[mhopemk3]

Thanx to all whos helping! I do have the ds flex plate and coverter. It is a turbo trans. To answer the question of why, i bought it almost done. Last, can anyone elaborate on what yellow13 said about a small computer near the ecu? Is that the auto tranny computer? Sep from motor ecu? Thanx and rep will be given when i get back on my computer! Shelby

Yellow is right.. There is a tranny ecu behind the passenger kick plate. I did a auto to manual swap and most likely have those parts you need. I know I have the ECM and pretty sure about the throttle stuff as well. This was pulled from my 89T.. Might have missed in your other post but did you have the tranny brackets??

 

[Toyota h8r]

Is this kid even old enough to drive:icon_roll

Hey so whats your damn problem Nicksupra? Im 19 yrs old. All i have owned is s10s and such so i dont know anything about supras but im learnin everyday. Also, if you would of read the prev. owner started the swap and its almost done. I just need to install the harness. The motors blown so im gonna wait and fix my 86.5 first. Thanx shelby

 

[Jspec7m88]

*rubs eyes*

Wait a second!!!! Does that say 5spd to Auto? :love: :love:

I was almost about to ask why you are getting rid of auto, but I literally read the topic name about 5 times before I realized, yaaaaaaaaay! :icon_surp

Auto is FTW! :icon_razz

 

[Jspec7m88]

don't make the mistake of switching to auto.

:nono: Can you explain to all of us why Auto is a mistake?

 

[Toyota h8r]

*rubs eyes*

Wait a second!!!! Does that say 5spd to Auto? :love: :love:

I was almost about to ask why you are getting rid of auto, but I literally read the topic name about 5 times before I realized, yaaaaaaaaay! :icon_surp

Auto is FTW! :icon_razz

+1 for Jspec7m88! Finally someone who does like the auto supee. I think it will fun to own! Also, i do drag race some at the track so...... I have seen most mk4's that were auto beat the manuals. I thought that be the same with mk3's?:1zhelp:

 

[rakkasan]

:nono: Can you explain to all of us why Auto is a mistake?

Simple really. Unless you dump 2-4k into an A430, it just cannot handle much above 350rwhp reliably. It's not a strong tranny, by any stretch of the imagination, unless you dump an assload of cash into it. Also, they shift as slow as a Dodge Reliant's auto, so that's more undue stress put on the friction plates.

In fact, the only person I know making decent power with a A430 behind it is Jdub, and I know his is an IPT tranny.

Are you suprised by this info? It's common knowledge that the A430 is weaker than Woody Allen.....

 

[Toyota h8r]

I probally wont ever make over 310hp. So i guess i dont have anything to worry about.:biglaugh: If I had the choice.......I'd go auto so its all good. I'll be running stock boost and use the car as a cruiser, not a race car. If I remember right, the supra is a GT car. A gt car was a road racing car so i'll run at some local tracks.(if there is any)

 

[Jspec7m88]

Sir, do you not get around much? First off, it's called the A340E. Not A430.

Above 350rwhp reliably? Most certainly not. No arguments there.
Who here is assuming it's going to be stock? Who even said it was an A340E?
I'm so tired of the image the automatic tranny gets. Who said this person even wanted to go above 350hp? You are assuming it all.
Now, for some really big horsepower numbers, will you have to build the transmission? Of course...But what's so strange about that?
Do you expect everyone on here using the R154 will use the stock clutch/flywheel, etc? No. It's all about upgrading...and whether you spend $300 on your R154 Transmission or $3,000 on your built A340E...Guess what.
It all pays off once you go to the track. It doesn't take a rocket scientist to figure out that building an automatic transmission will need deeper pockets than a typical manual transmission...but once again, Ask why Ryan Woon is now Automatic? Why are the worlds fastest cars of all types Auto? (Gearbox).

Just stop and think about it.

And just for the record, whomever's Supra you rode in with an A340E that "shifts as slow as a Dodge Reliant", probably isn't in the most fit condition. (And to be really kind about it with the mood I'm in right now, I'm trying to say it is probably a piece of SHIT).

My A340E is STOCK. With the exception of coming from a donor car, it's stock. I've since then, installed a B&M Tranny Cooler. I've done some serious beating to my car in the last 6 months and it's been GREAT. Mark my words. G-R-E-A-T. Shifts quickly, smoothly and is very satisfying. For the record, 307rwhp here.

Thanks for your concerns. :nono:

Jeff

 

[JustAnotherVictim]

I would think if you're going for serious auto power you would try the TH-400.

 

[NickSupra]

Easy killer! If you would take the time to reread my post, youd see that my comment was not directed at you.

 

[Jspec7m88]

I would think if you're going for serious auto power you would try the TH-400.

Yeah, that's eventually what I was leading to. :icon_razz

 

[Jspec7m88]

Unless you dump 2-4k into an A430,

AGAIN, Assuming. Assuming it all...


:3d_frown:

 

[rakkasan]

AGAIN, Assuming. Assuming it all...


:3d_frown:

Assuming? I dumped a ton into a A430 and it still didn't perform as I had hoped. There is no assumptions here, so what are you basing your opinion on? Sounds like nothing to me, so spare me from your rhetoric, please.