Race Tracking Your Supra - Information exchange

[Islindur]

295/30 on 18x10.5 is my future plan. Dunlop direzza which is a hair faster than A052

Btw new swan neck on the market:
https://www.battleaero.com/products...-izk8I166MGQnzxG8KFnv8&variant=40935617364011

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[Rocksandblues]

11's you can go 305. i know a guy running 315 slicks

 

[razorlab]

I'm not finding many good options in 285 with 200tw that heat up quickly for street/track use. I like the RT660, but theyre heavy

285 also too wide for 19x10

 

[razorlab]

Side track as usual, what is the max width you think, without feeling like trash for 18x11 on RT660 or CR-S? (probably depends on sidewall)

295 with CRS. They run super wide.

 

[Islindur]

Wing endplates to increase efficiency, any info?
Got Verus UCW, thinking about adding bigger endplates. Gonna cut the front diffuser and do tunnels too. Dont wanna buy enitrely new stuff so trying get out more of the parts I have.
Any thoughts?

 

[razorlab]

Wing endplates to increase efficiency, any info?
Got Verus UCW, thinking about adding bigger endplates. Gonna cut the front diffuser and do tunnels too. Dont wanna buy enitrely new stuff so trying get out more of the parts I have.
Any thoughts?

Put whatever you want, makes very little difference: https://occamsracers.com/2023/11/17/testing-end-plates-in-a-wind-tunnel/

 

[rwense]

I'll also plug Mario (Occams Racers). He does some awesome write-ups and really answers a lot of questions. His writing style is hilarious too.

I spoke with him a little while back about possibly testing a couple things on our chassis. Maybe as a group we could get some things tested.

 

[Islindur]

Put whatever you want, makes very little difference: https://occamsracers.com/2023/11/17/testing-end-plates-in-a-wind-tunnel/

Well, all I needed to know.
But still I'll cut into Verus and do tunnels, dunno which brand tho, dont wanna do it myself-design. Free front df there.

 

[razorlab]

Well, all I needed to know.
But still I'll cut into Verus and do tunnels, dunno which brand tho, dont wanna do it myself-design. Free front df there.

@garudathree did exactly what you are thinking about doing. Maybe he can chime in.

 

[garudathree]

@garudathree did exactly what you are thinking about doing. Maybe he can chime in.

I molded my own tunnels for now, but am waiting to test a set from 777. Occam’s racer also has a set that I would like to test, but we have packaging issues due to side rads.

 

[Islindur]

I molded my own tunnels for now, but am waiting to test a set from 777. Occam’s racer also has a set that I would like to test, but we have packaging issues due to side rads.

They have them on site or custom made for U?

 

[Rocksandblues]

Id like to add tunnels. Not sure where or at what angle to install without a template from a wind tested soln.

 

[Eyelise]

285 also too wide for 19x10

I plan to run 275 CRSs on a square set of 18x10 ET 30s. The offset is significantly less than OEM so my only concern is rubbing the outside fender. I am at stock height so hopefully this will not be an issue but we will see. BTW, I'm not concerned with extracting every ounce of performance, just clearance. I realize putting the tires on "stretch" is a benefit but hey I doubt I would notice the difference at my lvl.

 

[razorlab]

I plan to run 275 CRSs on a square set of 18x10 ET 30s. The offset is significantly less than OEM so my only concern is rubbing the outside fender. I am at stock height so hopefully this will not be an issue but we will see. BTW, I'm not concerned with extracting every ounce of performance, just clearance. I realize putting the tires on "stretch" is a benefit but hey I doubt I would notice the difference at my lvl.

The 275 CRS fit well on 10”

 

[Islindur]

Id like to add tunnels. Not sure where or at what angle to install without a template from a wind tested soln.

Probably somehting like this between those mounting bolts, or maybe cut the inner ones. A rough idea

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