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2022 STU discussion

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Old Oct 11, 2022 | 11:11 AM
  #346  
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I've boiled Endless 650 on track and just about lost brakes. Switched to Castrol SRF and haven't had that issue again. I'm on Ferodo DSUno pads which seem to hold up pretty well too.
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Old Oct 11, 2022 | 12:38 PM
  #347  
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Originally Posted by tolas
I've boiled Endless 650 on track and just about lost brakes. Switched to Castrol SRF and haven't had that issue again. I'm on Ferodo DSUno pads which seem to hold up pretty well too.
That.....took some effort.
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Old Oct 11, 2022 | 12:41 PM
  #348  
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do you have the bottom cover? my friend with an IX and I went to COTA together. my brakes were fine but he boiled his fluid every session. the only difference was the bottom cover (and I also brake-test(knockback) before the turn after the long straight)
these days, I have X brakes and I add these to the bottom, thought it might help in cooling


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Old Oct 11, 2022 | 01:20 PM
  #349  
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Those look good! Look like the direct more air than the OEM guides.
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Old Oct 11, 2022 | 02:03 PM
  #350  
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ya my wheels are super clean everytime I use them
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Old Oct 12, 2022 | 06:10 AM
  #351  
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Originally Posted by tolas
I've boiled Endless 650 on track and just about lost brakes. Switched to Castrol SRF and haven't had that issue again. I'm on Ferodo DSUno pads which seem to hold up pretty well too.
Originally Posted by Balrok
That.....took some effort.

To clarify, are you saying: That took some effort? Or THAT! But it took some effort?

Originally Posted by ViciousLSD
do you have the bottom cover? my friend with an IX and I went to COTA together. my brakes were fine but he boiled his fluid every session. the only difference was the bottom cover (and I also brake-test(knockback) before the turn after the long straight)
these days, I have X brakes and I add these to the bottom, thought it might help in cooling
Still have the bottom cover for STU but that seems to be an idea as well!
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Old Oct 12, 2022 | 07:37 AM
  #352  
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Originally Posted by LV///R
Still have the bottom cover for STU but that seems to be an idea as well!
you dont need that in STU, its not bolted it makes the cone bumper stronger though
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Old Oct 12, 2022 | 07:51 AM
  #353  
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Originally Posted by ViciousLSD
you dont need that in STU, its not bolted it makes the cone bumper stronger though
AFAIK, the undertray is required for STU.
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Old Oct 12, 2022 | 07:53 AM
  #354  
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Originally Posted by ViciousLSD
you dont need that in STU, its not bolted it makes the cone bumper stronger though
i believe you are misinterpreting what "bolt-on front valance lips/spoilers" are. the plastic undertray the evo has cannot be removed in STU.
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Old Oct 12, 2022 | 07:57 AM
  #355  
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really? thanks for the info. i've had them fall off once, before i started using screws
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Old Oct 12, 2022 | 08:51 AM
  #356  
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not sure if anyone has neatly routed a brake duct hose with all the plastics (it seems impossible to me)... there's this stuff you can check out at Lowe's its big inlet, low profile, lightweight, very sturdy
this elbow is 45-90degree (see other parts)
StealthFlow 4631 Adjustable Elbow, Black - - Amazon.com StealthFlow 4631 Adjustable Elbow, Black - - Amazon.com
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Old Oct 12, 2022 | 09:05 AM
  #357  
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As much as I would love to ditch the undertray for STU - yeah it's definitely not legal to remove.
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Old Oct 12, 2022 | 09:37 AM
  #358  
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Originally Posted by LV///R
As much as I would love to ditch the undertray for STU - yeah it's definitely not legal to remove.
my bad. when i was in STU my competition didnt have it so I thought the cones took it out and cant be mounted anymore. I have mine ziptied to the engine mount so i doesnt just fall off when the quick release fasters pop. I've already lost 4 tabs on my bumper lip
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Old Oct 12, 2022 | 01:09 PM
  #359  
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Originally Posted by ViciousLSD
my bad. when i was in STU my competition didnt have it so I thought the cones took it out and cant be mounted anymore. I have mine ziptied to the engine mount so i doesnt just fall off when the quick release fasters pop. I've already lost 4 tabs on my bumper lip
No worries man!

Maybe I missed - but did you make those air ducts/diverters for the undertray?

I see that Rexspeed makes some that mount to the front LCA's. Unsure if they are effective. Seems to be an absolute pain to get 2.5/3.0" ducting routed properly. Especially after looking at Miller's car at Gridlife... I was leaning towards the Titanium shims, stainless pistons, Castrol fluid and/or these Rexspeed pieces if they have any sort of impact. Then throwing on more aggressive/heat tolerant pads if needed.
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Old Oct 12, 2022 | 02:37 PM
  #360  
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Originally Posted by LV///R
No worries man!

Maybe I missed - but did you make those air ducts/diverters for the undertray?

I see that Rexspeed makes some that mount to the front LCA's. Unsure if they are effective. Seems to be an absolute pain to get 2.5/3.0" ducting routed properly. Especially after looking at Miller's car at Gridlife... I was leaning towards the Titanium shims, stainless pistons, Castrol fluid and/or these Rexspeed pieces if they have any sort of impact. Then throwing on more aggressive/heat tolerant pads if needed.
I have some old school brake ducts that fit the OEM brakes for I think 2.25 or 2.5" hose. If you want them to try, they're yours.

They dont work with SSB uprights and I have an idea of what to do for my parts for an additional duct.
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