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SC300 rebuild (1jz , bmw 530d 5-speed)

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Old 04-15-14, 02:28 AM   #1
Lettut
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Default SC300 rebuild (1jz , bmw 530d 5-speed)

Hello fellow SC/Soarer nerds

Iīd like to make a small contribution to this great forum. Please forgive me for bad Spelling and infantile English, as itīs not my native language


Lexus sc300/400 were never sold in Europe, so they are quite rare over here. I have a sc400 since Before, which I love dearly, but couldnīt resist when I found this manual 1994 sc300 last september. Flew down to Rotterdam, Holland , bought it, and drove it back home to Stockholm, Sweden. The alternator gave up on autobahn, but with some help I managed to get home.

The car was in good shape despite that it had 340 000 km (211 000 miles) on the meter. Paint and chassi in good condition, The 2jz and w58 working perfect. Simply Toyota/Lexus quality. Worn out steering Wheel and drivers seat on the minus side. Nice set up of 18" Wheels with good tyres.

Plans
This Winter I have started in a slow pace with the upgrades. My plans are as follows:
1) 1jz swap (I have ordered a soarer motor from the UK, but it hasnīt arrived yet)
2) BMW 530d 5 speed swap
3) Supra LSD diff
4) Brakes: LS400 -98 in the front
Supra tt -95+ in the rear
LS400 -96 Master cylinder +brake booster (To be able to register the car as a fully
rebuilt vehicle, I need to upgrade these as well. Silly Swedish traffic laws.)

The motor has to be completely stock when I do the registration, so all Engine upgrade goodies will have to wait.
/Anders
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Old 04-15-14, 03:28 AM   #2
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Default Transmission

The BMW E39 530d 5 speed has a good reputation among drifters for being very solid. Stronger than the R154 and so much cheaper (not to talk about the cost for a v160) I bought this gear box on ebay for 50 Euro (ca 70 USD)+shipping .
The full adapter kit (adapter plate, flywheel, tilton twin plate clutch) from abc-clutch was ca 2300USD.

I had to do some minor modifications to the tunnel (Close to the Engine bay) to make it fit. Pressed the tunnel roof upwards ca 10-20 mm (1/2") . Also did some grinding on the top of the transmission where it hit the roof.
Iīve also constructed a custom crossmember and shortened the shifter extension to fit the w58 lenght.

left to be done:
*let a machine shop construct a custom, blanced prop shaft with the front of the bmw propshaft and the rear of a sc propshaft
* new lines to the slave cylinder
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Old 04-15-14, 03:36 AM   #3
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Default transmission

BMW-JZ adapter kit
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Old 04-15-14, 04:00 AM   #4
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Default modification of tunnel

The darker, central area is were I had to press the tunnel roof upwards. Also created some more space on the left side/drivers side of the tunnel for the line to the slave cylinder
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Old 04-15-14, 05:08 AM   #5
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Default subframe/differential

The rear subframe was in pretty good condition, but the stock diff pumpkin was leaking.
Did some temporary rust protection and fitted a LSD supra tt diff
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Old 04-15-14, 06:00 AM   #6
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I like the tranny idea....get at it
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Old 04-15-14, 07:20 AM   #7
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Default Brakes

Thanks QWIKSTRIKE! Youīve got a nice Project going on yourself!

Made room for the Supra tt brakes in the rear by cutting away parts of the dust shield.
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Old 04-15-14, 07:36 AM   #8
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Default brakes

As I mentioned earlier Iīll have to replace the brake master cylinder as well. The -94 sc3 has the 3 bolt attachment and the newer ones a two bolt. Hence , Íīll have to change the brake booster as well. The LS400 -96 booster fits without modifications.
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Old 04-15-14, 08:25 AM   #9
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I always wanted to see that transmission swap done.
looks awesome! and looks promising!
good luck!
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Old 04-15-14, 09:00 AM   #10
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Thank you for the encouraging words mecheng10!

Right now Iīm just waiting for this pallet to arrive from the UK. A Soarer-non VVTi-1JZ with 80 000km+ECU +stock intercooler+ propshaft
/Anders
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Old 04-21-14, 11:06 AM   #11
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Still waiting for the 1JZ.

Thought I should post some pictures to show you what condition the car was in when I brought it home from the Netherlands.
It definitely needs some TLC. New steering wheel for example. My plan is to do the motor and tranny swap first and then focus on the interior and exterior.

A question for you fanatics: Does all Lexus steering wheels fit a -94 sc300, or should I look at specific year models?
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SC400 -95
SC300 -94
LS400 -97
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Old 04-21-14, 11:14 AM   #12
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Drivers seat in mint condition. Not.
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SC400 -95
SC300 -94
LS400 -97
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Old 04-21-14, 08:03 PM   #13
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What a way to start out. The headlights look great, even dirty. The interior could use a good cleaning. Use Soft scrub w/o bleach and it work magic in removing the dirt and grime.
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1992 SC400, Sleeper..522RWHP - 93 octane, 1JZ, BW S366, Soarer R154, ACT Stage 4, 800cc, DM LW Flywheel, MINZ FPR, 3" Exhaust, HKS CF Slip on, HKS BOV, Tial 44 WG, BC 264 Cams, AEM gauges, AEM V2, MKIV Auto LSD!
Follow my build thread.....http://www.clublexus.com/forums/buil...and-links.html
Jay's Interior....http://www.clublexus.com/forums/sc-4...y-1jzpwrd.html
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Old 04-21-14, 08:05 PM   #14
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I learned something new today on these BMW's transmission. I have heard of Infinity but BMW. I am anxious to see how it holds up.
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1992 SC400, Sleeper..522RWHP - 93 octane, 1JZ, BW S366, Soarer R154, ACT Stage 4, 800cc, DM LW Flywheel, MINZ FPR, 3" Exhaust, HKS CF Slip on, HKS BOV, Tial 44 WG, BC 264 Cams, AEM gauges, AEM V2, MKIV Auto LSD!
Follow my build thread.....http://www.clublexus.com/forums/buil...and-links.html
Jay's Interior....http://www.clublexus.com/forums/sc-4...y-1jzpwrd.html
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Old 04-21-14, 09:58 PM   #15
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I suggest looking at the 2001 RX300 steering wheel (I think 99-02 will work as well?). It's a nice replacement that looks great with the interior of the SC. It's almost almost a direct plug and play swap. Here's a link for ya..

www.clublexus.com/forums/8036983-post23.html
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Old 04-21-14, 09:58 PM
 
 
 
 
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