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

93 ls400 turbo minfold/downpipe?

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Old 02-18-09, 05:27 PM
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420man361
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Default 93 ls400 turbo minfold/downpipe?

anyone know where to get these? or know of something compatable?

oops, i meant manifold, slip of the fingers
Old 02-18-09, 08:08 PM
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LiCelsior
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totally custom, no one makes it unless u spend 8k to buy the kit.
Old 02-18-09, 10:32 PM
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Rocan
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go to an exhaust shop and get one made... as LiCelsior said, totally custom.

why not run remote turbos? makes installing a turbo (or two =D) on this car way easier

keep us updated on the project

and lay off the 420 while you do the project xD
Old 02-19-09, 07:51 AM
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420man361
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Originally Posted by Rocan
go to an exhaust shop and get one made... as LiCelsior said, totally custom.

why not run remote turbos? makes installing a turbo (or two =D) on this car way easier

keep us updated on the project

and lay off the 420 while you do the project xD
ha ha, thats funny!

anyway, honestly i had never heard of a remote turbo, but i researched it now, sounds pretty cool. i'm waiting for them to e-mail me with the info. i called sts, for about $3,400, and $40 worth of pipe work at my muffler shop, i'm gona be able to install my own turbo!!! many thanx to ROCAN for the tip. should have it done in a month or two,i'll be sure to post pics!!!!

Last edited by 420man361; 02-19-09 at 09:25 AM.
Old 02-20-09, 09:47 PM
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Rocan
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Originally Posted by 420man361
ha ha, thats funny!

anyway, honestly i had never heard of a remote turbo, but i researched it now, sounds pretty cool. i'm waiting for them to e-mail me with the info. i called sts, for about $3,400, and $40 worth of pipe work at my muffler shop, i'm gona be able to install my own turbo!!! many thanx to ROCAN for the tip. should have it done in a month or two,i'll be sure to post pics!!!!
KEEP US INFORMED!

ive been dying to do the kit from sts for ages but im broke and cant even drive legally yet... hehe.. legally...

pics pics pics! oh and PLEASE dual turbo?
Old 02-23-09, 11:02 PM
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420man361
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Originally Posted by Rocan
KEEP US INFORMED!

ive been dying to do the kit from sts for ages but im broke and cant even drive legally yet... hehe.. legally...

pics pics pics! oh and PLEASE dual turbo?
after talking with guys at sts, i found that a single turbo(with a big turbo) is better a tt with two smaller turbos. also alot cheaper to buy and install. i should have the money late march, or april. as soon as get it, i'll post pics. and once i get it tuned i'll post stats and videos
Old 02-24-09, 12:03 AM
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ehh, except that you WILL get lag unless you run a single small turbo, which spools faster. single big turbo will equate to lag off the line or at low RPM.
Old 02-24-09, 08:46 AM
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420man361
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o, i hadn't thought about that. you're one of the most helpful members in this forum. what about a bigger turbo, just with a smaller turbine? i've heard of some people doin this, never accually seen it done tho
Old 02-24-09, 09:25 AM
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well A, the LS really isnt a off-the-line beast. so a single big turbo will help with the highway runs .
Old 02-24-09, 11:21 AM
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meh, the fact that the LS lacks low end tq is something that bugs me, mostly due to the high final drive ratio and the trans gearing.
Old 02-24-09, 02:28 PM
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I wouldn't press a LS400 from the line anyway... All from a roll if you wanted to get on it..

there is always "some" lag on a turbo setup whether up close and personal with the engine or if its remotely... brake boost anyone?!

Main thing is, oil feed. A dry sump in the trunk would be best, a shield to help prevent any debris entering the unit etc etc....

I was (still am at times) part of the maxima world where this was implemented on a 4th gen (95-99) max and made some very impressive numbers. Even with its location at the exhaust area.
Old 02-24-09, 08:17 PM
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Bill Dowd
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Pure Drifter here is a question for you will the lexus bottom end hold up to a turbo, Here is Costa Mesa toyota racing division has stopped selling turbos for the trucks due to bottom ends coming unglued and blowing out the crank bearings. I know the bottom end of the LS motor is bullet proof but stories are abound about the LS 400 motor blowing out due to people set the waste gate to high what is your call on this. I have been thinking about buying a 2000 LS 400 and having a turbo put in cost so far are about 7,000 to 12,000 dollars. Is this a risky investment.
Old 02-24-09, 08:19 PM
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Rocan
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my reason for two small turbos was less lag while keeping the overall power gain...

http://www.lextreme.com/tt.html

GO FOR IT =D
Old 02-24-09, 08:20 PM
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Rocan
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Originally Posted by Bill Dowd
Pure Drifter here is a question for you will the lexus bottom end hold up to a turbo, Here is Costa Mesa toyota racing division has stopped selling turbos for the trucks due to bottom ends coming unglued and blowing out the crank bearings. I know the bottom end of the LS motor is bullet proof but stories are abound about the LS 400 motor blowing out due to people set the waste gate to high what is your call on this. I have been thinking about buying a 2000 LS 400 and having a turbo put in cost so far are about 7,000 to 12,000 dollars. Is this a risky investment.
shoouldnt blow... id say that the engine should be good to AT LEAST 15psi... way more then most of us would run on a street setup
Old 02-24-09, 09:16 PM
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the trucks use the 2UZ, which like all post 95/96 1UZ/3UZ engines, has weaker rods.

1uz is good to ~12-15psi with older conrods.


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