Supercharged IS200 race car - Printable Version

Supercharged IS200 race car - Printable Version

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Supercharged IS200 race car - P.Lindblom - 15-08-2019

About a year ago I posted a few pics of a weight reduced IS200 that I fitted a supercharger to.

According to Lexus Sweden it's a pre production model and possibly the first IS200 ever made. It has no VIN number so it can't be registered for road use. Also, since it's not registered it has no official owner and nobody seems to be sure whose it actually is. It was used at various motor shows around Europe to promote the launch of the Lexus IS in the late 90s.

The car was then used in a Swedish movie called Livvakterna (Executive Protection) where it was supposed to be totaled in a crash. However, the IS only sustained minor scratches and after the film was done it ended up in a hangar at an airfield near Stockholm, along with a pre production TTE supercharger kit.

Last year the small company called Active Driving, currently in possession of the car asked me if I could fit the supercharged kit for them, as they had heard about my own charger install. When we rolled out the car from the hangar it had 2593 miles on the clock. It had done 200 miles the last ten years.

[Image: large_207191-1954248.jpg]

I took the car home to my parent's house and fitted the supercharger kit on a lovely summer day.

[Image: large_207191-1959817.jpg]

In exchange for the job Active Driving lent me their test track for one day to host the first official Swedish Lexus meet where we had a lot of fun with the IS200 "race car" as well as with an IS-F and other demo cars that Lexus Sweden brought.

[Image: dsc3929fix.jpg]

Here's a partial lap around the test track. For some reason my ContourHD suddenly stopped recording.
[youtube]1FUSV9Xvvkk[/youtube]

Supercharged IS200 race car - P.Lindblom - 15-08-2019

Now winter is closing in and the guys at Active Driving wants to do some ice racing when the lakes are frozen. They have given me a list of things they want fitted or adjusted on the car and I'm going to have to ask for your advice on a few of them.

These are the things I want to ask you about:

Fit an LSD - My initial thought was to take the diff from an IS200 Sport. Is that a straight swap? The car currently has an automatic gearbox, but they intend to replace it with a manual one next year
Front brakes are locking under hard braking. They want to even out the braking performance between the front and rear brakes. Can this be done somehow?

Supercharged IS200 race car - dimis - 15-08-2019

Hi the diff from the sport model is a straight swap, I did this on my car and works fine. I The only difference is the ratio of the auto diff and the torsen diff, which i am not sure how it will affect the gearbox and gear changes

Supercharged IS200 race car - Sparkystav - 15-08-2019

Yes the diff should fit no problem, their all the same, except the ratio in the auto is different to the manual but the physical size is the same.

as for the braking, it could be done i suppose but if i remember correctly the ABS box has two lines in then the four lines out. with a seperate line for front and rear so some sort of bleed valve could be put between them i think. I'd have to look into it more

Supercharged IS200 race car - P.Lindblom - 15-08-2019

dimis Hi the diff from the sport model is a straight swap, I did this on my car and works fine. I The only difference is the ratio of the auto diff and the torsen diff, which i am not sure how it will affect the gearbox and gear changes

Sparkystav Yes the diff should fit no problem, their all the same, except the ratio in the auto is different to the manual but the physical size is the same.

as for the braking, it could be done i suppose but if i remember correctly the ABS box has two lines in then the four lines out. with a seperate line for front and rear so some sort of bleed valve could be put between them i think. I'd have to look into it more

Thanks mates. I appreciate your help Smile

Do you reckon the IS200 Sports LSD is good enough to use on the race track or should I look for an alternative? I think I read somewhere that TRD made an LSD for the IS200.

Active Driving is paying for all the parts. The only thing I have to do is locate them and help fit them.

Supercharged IS200 race car - Sparkystav - 15-08-2019

I dont know if TRD made it but its an excellent LSD made by Torsen i think.

Supercharged IS200 race car - Bandit - 15-08-2019

The braking should be possible with an adjustable brake bias valve mate? maybe like this one? CLICK ME?

Supercharged IS200 race car - dimis - 15-08-2019

TRD made an LSD for the altezza and there was one recently on uk ebay. I believe it should also fit the IS200. The torsen from the sport version should be ok for the track. I know many Austrian guys that visit the track and just have the torsen from the sport.

Supercharged IS200 race car - Sparkystav - 15-08-2019

Bandit The braking should be possible with an adjustable brake bias valve mate? maybe like this one? CLICK ME?

trying to figure out how these work now!
i thought without looking that you sort of tapped between the lines (front and rear) and it released some across depending on how you had it set.

it appears not, but most go on about fitting to the rear line when you upgrade from drums to discs. i cant find a simple explaination

Supercharged IS200 race car - is300_dino - 15-08-2019

would an is300 diff work? is there any difference tween the 200's and 300 diffs or are they the same?