Input wanted on Proving Grounds classes

[v8klla]

Here is what we're thinking for classes this year, please share your thoughts!

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Heads Up Classes: Pro Tree

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The following classes are designed for various types of street legal vehicles. Exotics and other unique platforms may be asked to compete in another class at our discretion.

Real Street / NA (RS/N)

Requirements:
• Must be naturally aspirated
• Must have full interior / exhaust
• Tire Restrictions: DOT approved radials only

King Street / NA (KS/N)

Requirements:
• Must be naturally aspirated
• Tire Restrictions: Slicks up to 26”

Real Street / Unlimited (RS/U)

Requirements:
• Turbocharger Restrictions: 62mm maximum inducer
• Maximum of one power adder
• Tire Restrictions:
o AWD/RWD: DOT approved drag radials
o FWD: Slicks up to 26”

King Street / Unlimited (KS/U)

Requirements:
• No power adder / turbocharger limitations
• Tire Restrictions: Slicks up to 26”

Quick (QK)

Requirements:
• No tube chassis vehicles, ¾ chassis are acceptable.

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The following classes are designed for factory turbocharged vehicles, but NA and factory supercharged vehicles are certainly welcome. Exotics and other unique platforms may be asked to compete in another class at our discretion.

Stock Appearing (SA)

Requirements:
• Stock appearing turbocharger
o Compressor / turbo inlet must be stock size.
o No visible external wastegates
o 2G DSMs may run TD05H variations (14B, 16G, etc).
• Must have stock appearing intake and exhaust manifolds or a factory heat shield rending any upgrade undetectable.
• Front mount intercoolers and upgrades are acceptable
• DOT Radials Only
• Must have full interior & exhaust

Stock Appearing / Unlimited (SA/U)

Requirements:
• Stock frame turbocharger
o External wastegates are acceptable
o Intake and Exhaust manifold upgrades are acceptable
o 2G DSMs may run TD05H variations (14B, 16G, etc).
• Tire Restrictions:
o AWD/RWD: DOT approved drag radials
o FWD: Slicks up to 26”

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Bracket Classes: Sportsman Tree

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The following bracket classes are for participants that may not fit into one of our elimination classes or prefer to race in a bracket style format. Use the time trials and qualifying sessions to hone in on your dial in and make sure to write it on your window prior to eliminations! Competitors in these classes must pass a general safety inspection.

Bracket 1 (B1): 13.99+
Bracket 2 (B2): 12.00-13.99

[niterydr]

Stock Appearing (SA)

Requirements:
• Stock appearing turbocharger
o Compressor / turbo inlet must be stock size.
o No visible external wastegates
o 2G DSMs may run TD05H variations (14B, 16G, etc).
• Must have stock appearing intake and exhaust manifolds (Swaps between generations allowed)
• Front mount intercoolers and upgraded BOV allowed
• Unlimited fuel modifications (alternative fuel allowed, no nitrous)
• DOT approved Tires Only, tread rating over 100 required
• Must have full interior & exhaust that exits behind rear tires
• Any ECU mods allowed (standalones allowed)

Stock Appearing / Unlimited (SA/U)

Requirements:
• Stock frame turbocharger
o External wastegates are acceptable in any configuration
o Intake and Exhaust manifold upgrades are acceptable in any configuration
o 2G DSMs may run TD05H variations (14B, 16G, etc).
• Must have full exhaust that exists behind rear tires
• Unlimited fuel modifications (alternative fueling allowed, injection of methanol and nitrous allowed)
• Any ECU mods allowed (standalones allowed)
• Tire Restrictions:
o AWD: DOT approved drag radials
o RWD: DOT approved drag radials
o FWD: Slicks up to 24.5”


The tweaks above will help separate the SA and SA/U classes and keep the SA classes competitive for people "just starting out on mods"

[v8klla]

Yea I was just trying to list the restrictions or points of protest instead of listing a yes or no for everything. I don't know that I would personally want nitrous allowed in SA/U, anyone else?

[niterydr]

Yea I was just trying to list the restrictions or points of protest instead of listing a yes or no for everything. I don't know that I would personally want nitrous allowed in SA/U, anyone else?

Maybe not SA/U with nitrous.

But the question becomes, do you allow meth injection in SA/U or SA? What about Propane injection?

The concern is that meth or propane are what some use to try to compete with E-85 setups that would probably be allowed in SA. I agree on the yes/no, just trying to cover the other questions that may come up with the list.

[v8klla]

I'm not sure that I would want to restrict it in any class, if they're running pump gas they're going to need something to keep up with the E85 guys lol

[carltalon]

Looks good to me. Niterydr's additions look good and add more clearity. Are all classes except Bracket going to be running pro tree? I always thought it was weird racing in a "street" class with pro tree but thats Just my opinion.

[v8klla]

The Honda guys are insisting on pro tree and I think it fits for heads up classes (brackets obviously need the sportsman tree for delays)

[turbotalon1g]

I agree with the pro tree being weird.

Honda idiots, what they think they are pros? Didn't look like 80% of the people even knew how to stage.

I'd allow nitrous in SA/U class, why not its basically a balls out class for stock appearing turbos.

Real Street / Unlimited (RS/U)

Requirements:
• Turbocharger Restrictions: 58mm maximum inducer - wonder who this is for? :lol:
• Maximum of one power adder
• Must have full exhaust
• Tire Restrictions:
o AWD: DOT approved drag radials
o RWD: DOT approved drag radials
o FWD: Slicks up to 24.5”

[goodhart]

I also think nitrous should be allowed for unlimited classes. It is after all "UNlimited"

[CornFed2.4]

Ill take bracket one please. LOLz! Seriously looks good, though Im sure a few things will change before the event. Thanks MAP