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PostPosted: Fri Dec 01, 2017 10:24 pm 
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245 R7 will fit the template on a 9" wheel.

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PostPosted: Sun Dec 03, 2017 8:10 am 
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Question,
How is OEM track width determined? I have an identical street car that I used to measure from.

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PostPosted: Sun Dec 03, 2017 11:12 am 
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what tires can be used in rain?

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PostPosted: Sun Dec 03, 2017 12:35 pm 
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Tough decisions made wisely by the NASA team!


Can I be the guy that starts lobbying for a long term rules freeze?


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PostPosted: Sun Dec 03, 2017 2:24 pm 
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Matt@NCM wrote:
Tough decisions made wisely by the NASA team!


Can I be the guy that starts lobbying for a long term rules freeze?


Are you a BMW on Hoosiers?

I am overall a big fan of the rules layout. But there are some modifiers, tire compound especially, that are wildly off from the real world.

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PostPosted: Sun Dec 03, 2017 2:56 pm 
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I am a BMW but I'm not a fan of the new rule set. If you'd prepped your car close to the extent of the TTC rules, you're getting pushed into TT4 with these new rules.

The lose of the tire size modifier plus losing the ability to take points for the splitter and brake calipers vs hits to the HP:Lb ratio aren't good for me at all.

Oh well. I'll only be ~50rwhp low for TT4. If I had the cash it'd be time for an S54 swap...


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PostPosted: Mon Dec 04, 2017 6:11 am 
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docwyte wrote:
I am a BMW but I'm not a fan of the new rule set. If you'd prepped your car close to the extent of the TTC rules, you're getting pushed into TT4 with these new rules.

The lose of the tire size modifier plus losing the ability to take points for the splitter and brake calipers vs hits to the HP:Lb ratio aren't good for me at all.

Oh well. I'll only be ~50rwhp low for TT4. If I had the cash it'd be time for an S54 swap...


Very true. TT5 was designed to slow down TTC cars so that TTC & TTD could be merged. All the fast TTC guys will need to detune, but the reward is a bigger class size with simpler rules.

I'm taking a brake caliper hit, no complaints there.

Anyone else using aero will be subject to the same modifier you are.

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PostPosted: Mon Dec 04, 2017 10:14 am 
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hufflepuff wrote:
Matt@NCM wrote:
Tough decisions made wisely by the NASA team!


Can I be the guy that starts lobbying for a long term rules freeze?


Are you a BMW on Hoosiers?

I am overall a big fan of the rules layout. But there are some modifiers, tire compound especially, that are wildly off from the real world.


Lol. No.
This rule set is gonna get awfully close to parity. Id rather leave it alone and have a few years to flesh out all the minor details than constatly tweaking.

People take for granted how a consistent rules package is conducive for growth.

No rulebook is perfect. "The grass is always greener" addage couldnt apply more accurately


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PostPosted: Mon Dec 04, 2017 12:47 pm 
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Quote:
Non-OEM Transmission swaps are only permitted when used in conjunction
with an engine swap. Note--The transmission must come from the same donor
vehicle model as the engine, and that donor vehicle must be a model eligible to
compete in ST5 (section 4). Otherwise, the transmission must be OEM.


Whats the intent of this rule? I have a trans going into in my RX8 that fits within the stock tunnel. Its mated to a Honda engine but they are not from the same donor vehicle (I have a trans adapter plate - the motor and trans are both OEM Honda parts).

This car really won't have the power to compete in ST4 as I've envisioned it now - and I already have most of the components to take to completion. I think I can engineer my way around the restrictions to subframe / crossmember but that's irrelevant if I'm blocked on motor/trans not being from the same donor.


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PostPosted: Tue Dec 05, 2017 6:33 am 
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E36 sedan is looking really good right now. +.2 for 4 door and .7 for non A arm. That's a .9 advantage over other chassis right off the bat.

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