IS - 1st Gen (2001-2005) Discussion about the IS models up to the 2005 model

OEM parts? How do you know what OEM parts to put on your car?

Old 12-01-11, 11:46 AM
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LucciLou
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Exclamation OEM parts? How do you know what OEM parts to put on your car?

How do you know what OEM parts from other Lexus's or Toyota's to put on your car that are better then your orginal OEM part?
Old 12-01-11, 11:51 AM
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ais300c
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What r you referring to?
Old 12-01-11, 02:09 PM
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LucciLou
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Red face Any

im referring to parts u can swap out from one car and put on another but the parts are OEM one is just better then the other OEM part n swaps directly onto your car....?
Old 12-01-11, 03:22 PM
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Lux03lxus
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I wouldn't see why you would want to accomplish this. Everything on the is300 is solid. Some will say the w55 tranny isn't up to par, but if the car is na, then really nothing beats what's originally on the car. If you are trying to save money to replace certain parts, then it really depends on the parts. OEM parts are designed for the original car it was manufactured for. There are coincidental instances where people use parts from other cars because car manufacturers want to keep some of their inventory consistent to avoid hundred's of different versions of the same part. In that respect, then yes, you can use OEM parts from other cars, but in the end, OEM is OEM, and using OEM from another car is really just a misconception of it being "better." It really all depends on design, health, and the age of the particular part.
Old 12-01-11, 03:49 PM
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LucciLou
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Question i understand

i understand i thought there were some parts that were OEM but better then the original factory OEM u can swap on?
Old 12-02-11, 03:15 AM
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Lux03lxus
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Are you keeping the car stock or do you plan on making performance mods later? Like mentioned before, I can see the trans being an issue, but the w58 isn't necessarily "better" for a stock setup IMHO...the only other thing I can think of is cosmetic changes, like steering wheel, shift ****, etc...from other Lexus' or Toyota's.
Old 12-02-11, 11:28 AM
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LucciLou
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Post Hmmm

Originally Posted by Lux03lxus
Are you keeping the car stock or do you plan on making performance mods later? Like mentioned before, I can see the trans being an issue, but the w58 isn't necessarily "better" for a stock setup IMHO...the only other thing I can think of is cosmetic changes, like steering wheel, shift ****, etc...from other Lexus' or Toyota's.
no i plan on putting on some performance parts for sure...wut trans should i put in cuz i got an auto and drifting in an auto aint coool....i heard that manual is300 have a thump to them when shifting 1-2 & 2-3???
Old 12-02-11, 12:09 PM
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dsouthmia0
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The thunk is because of the heavy flywheel in the transmission. you can swap in the OEM w55 (im selling one) or you can swap in the R154 with 2jz bellhousing ($1500+) If your staying under 400hp you can also swap in the sc300 w58.
Old 12-02-11, 12:25 PM
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rvalero
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You can get TRD upgrades, such as bushings and sway bars. You can also get an Mk3 Supra Clutch Type LSD for drift. If you plan to boost, you should look into a R154, V160, or V161 tranny. I don't plan to boost, so I never looked into upgrading my W55. Figure out your budget, and start upgrading your suspension.

Get some info here:
http://my.is/forums/f89/suspension-b...rescue-396021/
http://my.is/forums/f114/r154-ultima...thread-379074/

The thump is normal. Once you drive it for a while, you figure out how to make it stop making the noise. From what I've read, the noise is caused by slack in the drivetrain and shifting technique. If you rev match your shifts, the shifter will slide right into place with minimal effort...and no thump.
http://my.is/forums/f87/manual-trann...solved-160602/
Old 12-03-11, 03:34 PM
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LucciLou
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Question

Originally Posted by dsouthmia0
The thunk is because of the heavy flywheel in the transmission. you can swap in the OEM w55 (im selling one) or you can swap in the R154 with 2jz bellhousing ($1500+) If your staying under 400hp you can also swap in the sc300 w58.
Ok sooo i aint got 1500+ for a trans....plus everything else im going to need...ill probably be under 400hp for a lil bit soo how much are u selling yours for? & whats the difference between a W55 & a W58???
Old 12-03-11, 03:39 PM
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LucciLou
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Question Ok

Originally Posted by rvalero
You can get TRD upgrades, such as bushings and sway bars. You can also get an Mk3 Supra Clutch Type LSD for drift. If you plan to boost, you should look into a R154, V160, or V161 tranny. I don't plan to boost, so I never looked into upgrading my W55. Figure out your budget, and start upgrading your suspension.

Get some info here:
http://my.is/forums/f89/suspension-b...rescue-396021/
http://my.is/forums/f114/r154-ultima...thread-379074/

The thump is normal. Once you drive it for a while, you figure out how to make it stop making the noise. From what I've read, the noise is caused by slack in the drivetrain and shifting technique. If you rev match your shifts, the shifter will slide right into place with minimal effort...and no thump.
http://my.is/forums/f87/manual-trann...solved-160602/
hmm ok i get what your saying....i was thinking it might be something along those lines...hey this might sound dumb and u might not know the answer but i got an 01 Auto IS right and i was wondering if i had an LSD & VVTI.....?
Old 12-03-11, 03:56 PM
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rvalero
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Here's a good thread for people new to the IS300. http://my.is/forums/f87/do-i-have-ls...k-more-300932/

Here's a quote from that thread:
How to tell if my IS300 has LSD?
Look at the sticker on your driver door sill/jamb, look for the area that reads "A/TM"
You'll see numbers such as B02A, B02B, B02C
A=no LSD
B,C = LSD
If you are still unsure, call 1800 25 LEXUS and ask them to look up your VIN and they can tell you what options it came equipped it from the factory.

If you bought your car second hand, there is a possibility the owner of a non-LSD IS300 swapped in a factory LSD, if this is not disclosed, it makes things a bit more challenging.
Here are pics and info on how to distinguish the two by looking at the gears;
http://my.is/forums/showthread.php?p...68#post3637468

The methods of doing a burn out and checking if there are one or two tire marks / jacking up the car and spinning the wheels are somewhat debated and I am unsure if this is a valid way of determining if your car has lsd or not.

Info on how to perform a swap; http://my.is/forums/4278310-post10.html
I'm pretty sure all US IS300's have VVTI. Pop your hood, and you should see VVTI on your timing gear cover.


From what I've read, the W55 may be able to hold up to ~350hp as long as you don't beat on it. I don't have any FI experience, so don't take my word for it. You can do some research by following this link: http://my.is/forums/f114/transmissio...-links-351988/. Here's another link for FI info on the IS300: http://my.is/forums/f114/new-forced-...inside-346858/
Old 12-03-11, 04:07 PM
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LucciLou
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Thumbs up on point?

Thank you for the knowledgeable information good insight good looking my friend!
Old 12-03-11, 04:46 PM
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Great info as always, Rey.
Old 12-05-11, 03:12 PM
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LucciLou
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Question swapping tran

when i swap the tran & i put my MT tran in is there anything i should do before dropping it in like fly wheel, short shifter, & clutch?

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