LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Manual Transmission Conversion Question

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Old 10-09-13 | 07:12 AM
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Just FYI, you cant really do anything with your ECU. You will need to use a piggyback or full standalone for tuning.
Old 10-14-13 | 09:36 PM
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Bump

Does a manual conversion require a standalone ECU?
Old 10-14-13 | 10:00 PM
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No. it's pretty much just a straight forward swap.
Old 10-14-13 | 10:15 PM
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Originally Posted by usoff89
No. it's pretty much just a straight forward swap.
Radical! Thanks so much for all of your help and information! So I just need to get all of the parts and throw them in? Would that be around 3k all things considered?
Old 10-14-13 | 10:46 PM
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The adapter kit plus the clutch will run you around 12-1500. Then you still need to get and install a clutch setup (maybe 200-300?). Then it comes down to the cost of the trans. You might be able to find a good used one for around 500 give or take. Last thing you will need to do is also get a driveshaft made. 100-200 there. So when its all said and done, if you are doing the work you can get away with under 3k. BUT expect to add a decent amount to this if you are paying to have it done.

It's a straight forward swap but pretty hard at the same time.

Oh, and you will have to make a trans mount and install a hand brake too.
Old 10-14-13 | 10:57 PM
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Originally Posted by usoff89
The adapter kit plus the clutch will run you around 12-1500. Then you still need to get and install a clutch setup (maybe 200-300?). Then it comes down to the cost of the trans. You might be able to find a good used one for around 500 give or take. Last thing you will need to do is also get a driveshaft made. 100-200 there. So when its all said and done, if you are doing the work you can get away with under 3k. BUT expect to add a decent amount to this if you are paying to have it done. It's a straight forward swap but pretty hard at the same time. Oh, and you will have to make a trans mount and install a hand brake too.
Could an SC300 console and handbrake be used?
Old 10-14-13 | 11:22 PM
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Originally Posted by LSVIP
Could an SC300 console and handbrake be used?
console: no

handbrake: possibly, depends as it'll require ustom fabrication anyways
Old 10-14-13 | 11:28 PM
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Originally Posted by PureDrifter
console: no handbrake: possibly, depends as it'll require ustom fabrication anyways
Very true, I was looking to delete my parking break and get a pull brake anyhoo.
Old 10-15-13 | 12:47 AM
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Originally Posted by LSVIP
Very true, I was looking to delete my parking break and get a pull brake anyhoo.
Hydraulic E-brakes are sexy. I have no idea where you could squeeze one in the LS without getting in the way of something... but, rest assured, a handbrake turn will the so much easier in comparison to a footbrake(?) turn (God knows how that would go - having one hand on the release and the other on the wheel would be an interesting ordeal indeed).

Last edited by Sc0pe; 10-15-13 at 12:53 AM.
Old 10-15-13 | 02:04 AM
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Originally Posted by Sc0pe
Hydraulic E-brakes are sexy. I have no idea where you could squeeze one in the LS without getting in the way of something... but, rest assured, a handbrake turn will the so much easier in comparison to a footbrake(?) turn (God knows how that would go - having one hand on the release and the other on the wheel would be an interesting ordeal indeed).
....or you could disable the rachet...
Old 10-15-13 | 02:09 AM
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Originally Posted by PureDrifter
....or you could disable the rachet...
Or that... but then you lose the function of the parking brake, unless you have a setup similar to those hydraulic e-brakes which use a spring-loaded button to determine whether the parking brake "locks" or simply pops back.
Old 10-15-13 | 06:17 AM
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Originally Posted by LSVIP
Bump

Does a manual conversion require a standalone ECU?
when your ECU goes bad, you get a free manual conversion!!
Old 10-15-13 | 08:12 PM
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Originally Posted by Sc0pe
Or that... but then you lose the function of the parking brake, unless you have a setup similar to those hydraulic e-brakes which use a spring-loaded button to determine whether the parking brake "locks" or simply pops back.
hydraulic turning brakes don't replace parking brakes. Not a good idea to use a hydro handbrake for parking as it can cause issues leaks.
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