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PostPosted: Mon Dec 25, 2017 10:27 pm 
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srproductions wrote:
According to the rule set, the 981 Cayman Base 06-08 should be eligible since it was factory rated at 245HP. The 987.2 and 981 Caymans are 265HP and up in base trim.

Correct, the '07-'08 would be permitted. He was talking about the '09+.

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PostPosted: Tue Dec 26, 2017 7:14 am 
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Great - thanks for the clarification!

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PostPosted: Thu Jan 04, 2018 1:33 pm 
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In endurance racing, will ST5 be classed in E1?


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PostPosted: Thu Jan 18, 2018 6:04 pm 
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timbuk2 wrote:
In endurance racing, will ST5 be classed in E1?

Not certain, but sounds about right under the current enduro rules. I've sent an e-mail to those who decide on Enduro rules to make a decision and let you guys know.

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PostPosted: Tue Apr 03, 2018 10:26 am 
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Plus one for helping double strut and strut/live axle cars.

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PostPosted: Wed Apr 04, 2018 8:47 am 
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Greg G. wrote:
timbuk2 wrote:
In endurance racing, will ST5 be classed in E1?

...sounds about right under the current enduro rules. I've sent an e-mail to those who decide on Enduro rules to make a decision and let you guys know.


Who would that be, Greg?

ST4 and ST5 present some challenges for enduro classing because they introduce some rule limitations that can't be easily addressed on the enduro side with just engine maps and wheel/tire sizes.

The front fascia and fender flare limits make it difficult for an ST4 car to be competitive in E0 vs an ST3 car and bumping ST4 down to E1 will make ST5 cars with base model HP limits uncompetitive there too.

What's your recommendation on how to get those issues addressed?


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PostPosted: Wed Apr 04, 2018 8:54 am 
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geeveepee wrote:
Greg G. wrote:
timbuk2 wrote:
In endurance racing, will ST5 be classed in E1?

...sounds about right under the current enduro rules. I've sent an e-mail to those who decide on Enduro rules to make a decision and let you guys know.


Who would that be, Greg?

ST4 and ST5 present some challenges for enduro classing because they introduce some rule limitations that can't be easily addressed on the enduro side with just engine maps and wheel/tire sizes.

The front fascia and fender flare limits make it difficult for an ST4 car to be competitive in E0 vs an ST3 car and bumping ST4 down to E1 will make ST5 cars with base model HP limits uncompetitive there too.

What's your recommendation on how to get those issues addressed?

Talk to Jeremy Croiset.

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PostPosted: Tue Apr 17, 2018 5:09 pm 
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So does this mean that BTM Spoilers and wings are a no go? Even though most/all are basically for looks?

6.1.4 “BTM Aero” Modification Factor
Vehicles that maintain the unmodified Base Trim Model (BTM) body lines, do not have
non-BTM aerodynamic aides or modifications, and do not have a rear wing or rear
spoiler may assess the Modification Factor for “BTM Aero” in calculating the “Adjusted
Wt/HP Ratio”. Under this specific rule, an aerodynamic aide is considered non-BTM if it
did not come configured on the base trim model (BTM) of the vehicle from the
manufacturing factory. Except for those vehicle-specific higher level trim models (nonBTM)
listed in Appendix B, there is no updating or backdating across trim models or the
addition of dealer installed options permitted.



and on that subject... How in the world is a WING basically FREE just for giving up the BTM aero bonus?!?! That's only 85 lbs on a 3,000 lb car!

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PostPosted: Tue Apr 17, 2018 5:16 pm 
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CRallo wrote:
So does this mean that BTM Spoilers and wings are a no go? Even though most/all are basically for looks?

6.1.4 “BTM Aero” Modification Factor
Vehicles that maintain the unmodified Base Trim Model (BTM) body lines, do not have
non-BTM aerodynamic aides or modifications, and do not have a rear wing or rear
spoiler may assess the Modification Factor for “BTM Aero” in calculating the “Adjusted
Wt/HP Ratio”. Under this specific rule, an aerodynamic aide is considered non-BTM if it
did not come configured on the base trim model (BTM) of the vehicle from the
manufacturing factory. Except for those vehicle-specific higher level trim models (nonBTM)
listed in Appendix B, there is no updating or backdating across trim models or the
addition of dealer installed options permitted.

They must be removed to take this modification factor.

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PostPosted: Fri May 25, 2018 6:14 pm 
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Why is there a maximum horsepower limit in the rules?

Seems like it'll keep some cars out that could make that 14:1 lbs/hp ratio.

I have a 2003 350Z and my current starting point in the ST rule set is ST4 due to the cars factory 287fwhp. The ST4 12:1 would mean I would have to invest a good amount of money on power mods. I'd rather keep the engine closer to stock for reliability and also cost benefit.

Honestly a 350Z might not be competitive due to the tire width limitation in ST5, but it would be great to just have a chance at lower budget time trialing and W2W with the car.


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