How would you build the ultimate autocross sc400? - Page 2 - ClubLexus - Lexus Forum Discussion


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How would you build the ultimate autocross sc400?

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Old 03-28-07, 01:02 AM   #16
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Originally Posted by ant1k View Post
carbon fiber , doors, trunk, and hood, then fiberglass fenders, get a cusco stb, trd sways, no tein products what soever, maybe hks? jic? so where the hell do you autocross in hawaii, id certainly like to know.
Stadium, next autocross is april 8th.
cya there
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Old 03-28-07, 01:07 AM   #17
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Future suspension plans include:
Supra TT brake kit (dont know if i should get front, rear or both front and rear)
Daizen sway bar set
Daizen high performance control arm bushing kit
Daizen camber adjustment kit
Jic or cusco front strut tower bar
17" wheels with some wide tires (any suggestions?) dont wanna spend a lot
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Old 03-28-07, 01:24 AM   #18
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Originally Posted by emoshun View Post
Improve by losing the 19's on the track, and get some wide 17" track tires...


LOL, i didnt catch that one.
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Old 03-28-07, 01:26 AM   #19
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Quote:
Originally Posted by insomniac View Post
Future suspension plans include:
Supra TT brake kit (dont know if i should get front, rear or both front and rear)
Daizen sway bar set
Daizen high performance control arm bushing kit
Daizen camber adjustment kit
Jic or cusco front strut tower bar
17" wheels with some wide tires (any suggestions?) dont wanna spend a lot

It's best to get front and back tt brakes for some balanced braking.

Strut bar doesnt do much, but i would suggest the carbing cause it has the master cylinder stopper.

Since u need to get as light as possible, i would go w/ te37's 17x9 and 17x10, but they cost a bit.
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Old 03-28-07, 10:02 PM   #20
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Quote:
Originally Posted by insomniac View Post
Future suspension plans include:
Supra TT brake kit (dont know if i should get front, rear or both front and rear)
Daizen sway bar set
Daizen high performance control arm bushing kit
Daizen camber adjustment kit
Jic or cusco front strut tower bar
17" wheels with some wide tires (any suggestions?) dont wanna spend a lot
if you want to go uber cheap, get some supra TT wheels (245 front, 275 rear)
if your not concerned with looks get some 17x9 17x10 5zigen FN01RCs (265 front, 295 rear).

as for brakes i would get just the front setup to shave a little weight. might get some nice pads and ss brake lines to go with that.

I like where you're heading, but keep in mind that it's you, the driver, that defines how well you drive, NOT the car. Keep practicing with the setup you currently have until you've reached the full limit of the car's potential, THEN upgrade where necessary. Keep it up!!
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Old 03-29-07, 01:01 AM   #21
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Definately DL the rulebook if you're planning on AX glory
If not... then you don't really have to worry... jus giv em!

TT brakes would be champ, do the full swap.
Speedbleeders and Motul RBF600... good stuff. Andy's and Off The Lip usually has the Motul in stock. HPI carries ATE Super Blue, good alternative + it's blue
thinking of trying the GS5/6 and R4S pads... neone?

Whiteline makes some adjustable sways. You'll probably need to make adjustments in the future. Plus it's an easy change to make, and can be done at the same time you're taking your race wheels on/off.

Torsen diff

Here's where the whole ESP, STX thing makes the difference. Enkei RPF1s are light and affordable but takeoffs from another car (esp if you still want to use the stock brakes for awhile) are probably the cheapest.
I noticed a whole lot of RT-615s out there and their reputation (along with the RE-01R) seems to be pretty good. 245 f/r is also a pretty good amount of tire, this might be the way to start.
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Old 04-03-07, 02:55 PM   #22
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Upgrade the stock brakes,
put in coilovers which a higher spring rate but with good valving
JIC FLTA2 is my pic for $$$

Get some smaller lighter wheels 17's maybe 16's (if they can clear the brakes), with some grippy tires (Federals).

Gut the whole car,

and get a 1.5way LSD
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Old 04-15-07, 01:09 AM   #23
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Quote:
Originally Posted by Sly Guy Yu View Post
It's best to get front and back tt brakes for some balanced braking.

Strut bar doesnt do much, but i would suggest the carbing cause it has the master cylinder stopper.

Since u need to get as light as possible, i would go w/ te37's 17x9 and 17x10, but they cost a bit.
The carbing for the Supra? CA6410140LT is all I found, all around 280 shipped, any deals?
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Old 04-17-07, 07:38 PM   #24
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whats the master cylinder stopper do?
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Old 04-20-07, 07:08 AM   #25
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the master Cylinder stopper applies pressure to the MC reducing flex and increasing fluid pressure.

To really make this shine though, get metal braided break lines.

From what i've heard and read (including on this forum) is that it only fits the 300 and Supra. the MC stopper sadly does not fit the 400. I'd love to get one that does fit.
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Old 04-21-07, 06:20 PM   #26
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I'm a cheating bastard and want to modify my SC400 and still remain in F Stock. What Toyota factory parts can I use to improve my car's handling and stay in stock class?

I already have a set of 1998 GS400 17" five-spoke wheels. Will the 95+ LS400 calipers fit with these wheels? Supra calipers would be a dead giveaway. Will factory Supra springs stiffen and lower my car just a little? As far as I can tell Supra Konis are legal for stock class and will fit on my car. Is it even possible to tell a black poly suspension bushing (esp. sway bar bushing) from a rubber bushing after it is installed on the car? I think a Supra rear sway bar will bolt up. Is this true?
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Old 04-21-07, 06:53 PM   #27
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I think the 95+ LS400 4 piston calipers will fit under those wheels with some spacers. Yes factory Supra springs will lower your car a bit (~0.5") and you would have to use Supra shocks to go with it. The MKIV Supra sway bar will not bolt up unless you have the complete Supra rear subframe.
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Old 04-21-07, 09:03 PM   #28
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Quote:
Originally Posted by sc300max View Post
I think the 95+ LS400 4 piston calipers will fit under those wheels with some spacers. Yes factory Supra springs will lower your car a bit (~0.5") and you would have to use Supra shocks to go with it. The MKIV Supra sway bar will not bolt up unless you have the complete Supra rear subframe.
I am going to have LS400 4 piston calipers and MKIV shocks with Swift springs installed on my ride within the week. I honestly can not wait. Weather is supposed to be perfect this weekend.
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Old 04-23-07, 10:44 AM   #29
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Quote:
Originally Posted by emoshun View Post
Improve by losing the 19's on the track, and get some wide 17" track tires...
The Kumho V710 were gripping for me when I first took my SC to the autocross. I would highly recommend those.

To improve handling on the SC I would look into changing out all the bushings, getting fatter sway bars, change out suspension from shock/spring combo to dampers, and do as much as I can to lighten the load.
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Old 04-23-07, 11:14 AM   #30
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Get a cheapo auto-x toy like an old miata, or vw. The car is just not intended for auto-x as I see it. You might do well at an open track day though.
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