N/A w/ r154

RPSil13

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Nov 30, 2006
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i have a 89 na and would like to convert it to 5sp, i plan on using the r154 and have been reading through threads all day and the only thing thats unclear is which flywheen to use, any info would be appreciated,
thanks
Art
 

Nocheez

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Apr 17, 2005
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Nothing wrong with using an R154, you might as well do it only once if you ever plan on running more power.

You will need the turbo flywheel and pressure plate for the R154. The non-turbo flywheel has completely different rivets.
 

CRE

7M-GE + MAFT Pro + T = :D
Oct 24, 2005
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But the W58 is so smooth, so buttery and it's light... it's like low-cal margarine only better. :naughty:
 

holdbrooks

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Aug 24, 2006
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Im doing it now too because I will be doing a 2jz swap when I get out of school in a few years. I know that it is overkill for the na for now but it is future proof and I will have a spare for the turbo car if I break it racing. I personally have never driven a car with a w58 but I don't understand why people say the 154 is is so notchy because all rye ones I have driven have been just as smooth as anything else in have driven. You guys must have some busted ass tranmissions.
 

RPSil13

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Nov 30, 2006
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yup basically plan to go 1j very soon, but in the mean time i want to swap it to manual and would rather not do the swap twice ie w58 then r154,
thanks for the 411 i tried to post in a prev thread but it didnt allow me
 

suprarx7nut

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holdbrooks;1097684 said:
Im doing it now too because I will be doing a 2jz swap when I get out of school in a few years. I know that it is overkill for the na for now but it is future proof and I will have a spare for the turbo car if I break it racing. I personally have never driven a car with a w58 but I don't understand why people say the 154 is is so notchy because all rye ones I have driven have been just as smooth as anything else in have driven. You guys must have some busted ass tranmissions.

^^This is key^^. It's not a night and day difference, but it is different. Take it from a few people who have driven healthy versions of both. A worn out tranny will actually seem smoother from my experience. A freshly rebuilt one will feel more "notchy".

All that being said, if you are going for big power than the r154 is DEFINITELY the way to go. :)
 

Jeff Lange

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Mar 29, 2005
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Everything drivetrain related from the flywheel back needs to be from a Turbo (or be the same as or equivalent to a turbo model).

So, you need to make sure you use a GTE flywheel, GTE clutch, pressure plate, fork, ball, slave, hard lines, soft line, front driveshaft, etc, etc.

In any case, to answer your original question, you need a 7M-GTE flywheel, and not a 7M-GE one.

Jeff
 

Rennat

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Dec 6, 2005
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My W58 felt as good as my R154 that i have in my turbo supra right now. if you have a notchy transmission, or something isnt smooth, its more than likely your transmission is old or you need some new fluid. because mine is SUPER smooth....

or the classic 'drive mod'... haha
 

Rennat

5psi...? haha
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Zumtizzle;1097933 said:
^gtfo

there is a difference. maybe your w58 is crappy?


rofl... maybe your transmission is old :sarcasm:. and my W58 shifted great. i ran redline fluid in that, and my R154... i drained out the fluid from it for almost 3 months (while i was rebuilding the engine) so its ALL fresh redline fluid. and i doubt its cause i put new bushings in... but i made sure to grease everything up with high quality grease.
 

Jeff Lange

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No matter how many R154's I drive, and no matter how many W5x's I drive, some of which are in very nice condition (such as my R154). The W58 is still smoother. My R154 is pretty smooth, I have no complaints at all with it, in fact I quite enjoy it.

However it has new Redline gear oil in it and was well taken care of. I've had many a beat-to-crap W5x transmission with who knows how old gear oil in it, and it's just as smooth as my nicely babied R154.

The W series is impressively nice IMO, but if I ever planned on making any serious power, I'd do an R154. It's really the way to go IMO.

Jeff
 

foreverpsycotic

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Jul 16, 2006
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Jeff Lange;1097914 said:
Everything drivetrain related from the flywheel back needs to be from a Turbo (or be the same as or equivalent to a turbo model).

So, you need to make sure you use a GTE flywheel, GTE clutch, pressure plate, fork, ball, slave, hard lines, soft line, front driveshaft, etc, etc.

In any case, to answer your original question, you need a 7M-GTE flywheel, and not a 7M-GE one.

Jeff

I was under the impression that the clutch disks were the same? Can you confirm or deny this? My friend is currently running a NA disk in his 1jz/r154 and it is holding out just fine.
 

suprarx7nut

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Nocheez;1098096 said:
The clutch disk is like $50 from Elmhurst Toyota. I'd get a new one regardless.

I believe he has to get a new one because currently he has no clutch. :dunno: I think he just wants to know which one.

The pressure plates will be different, so if you get a clutch kit which includes the plate, disc, TO bearing, and pilot, it should be for a turbo. If you're just getting a disc then they might be swappable.
 

1988SupraDreams

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Mar 10, 2006
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R154's are notchy when they are new and smooth when they're old ;)

Wouldn't it make sense that a newer transmission would be tighter and an old beat one be looser? My R154 has 40k Toyota miles on it with MT-90 and it always goes into gear and never grinds, but it's notchy. My old R154 had 190K+ miles on it and it was smooth as butter into every gear except second ;)

And to answer the OP's question, just get turbo everything from the flywheel back. It's really not too much more expensive to do it the R154 way aside from the R154 itself.
 

Phantom

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Dec 9, 2005
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From what I was told a few years back, you can use a W58 with a turbo car up to a max of 400hp. Anything past that the R154 would be a better choice.
Again, this is just something that I was told some time ago. I personally don't have any experience with either one since I'm driving with a A340E auto.

Just throwing this out there so other members can confirm or counter it.
 

Rennat

5psi...? haha
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he could pick up a W58 a lot easier and cheaper than the R154 though...

and the new = tight thing would only make sense if its brand new and your breaking it in still. your problem may be that you need some new shifter bushings and a nice grease on them to provide a nice smooth surface.