10:12:59am, Saturday, July 27, 2024
NTPA pro stock classes turbo limits
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Registered: 08/10/2015 Posts: 37 |
For those of us who don't have rule books can some list the turbo size limits for all NTPA prostock classes |
Re: NTPA pro stock classes turbo limits
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Registered: 03/26/2008 Posts: 503 |
Pro Stock limited to 6 inch inlet and exhaust. Heavy Pro Stock (RN) is 5 inch smooth bore inlet--5.370 inch exhaust outlet (box turbo). The Light Pro Stock turbo is limited to a 4.5 inch exhaust with unlimited inlet size. The Limited Pro Stock turbo is limited to 4.1 inch smooth bore inlet with no Map ring allowed and a 4.5 inch exhaust outlet. Super Farm turbos are 3 x 3 with additional restrictions that are too lengthy to put here!! Pro Farm turbo is a 3 x 3 smooth bore in and out and a Hot Farm is a 3 inch in x 3 1/2 out, HF and PF are state/region only> |
Re: NTPA pro stock classes turbo limits
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Moderator Registered: 07/06/2008 Posts: 1,382 |
What about Classic SS? (just kidding but someone knows). |
Re: NTPA pro stock classes turbo limits
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Registered: 03/26/2008 Posts: 503 |
Haha,,,,they asked for Pro classes and I did go a little overboard with the SF, HF, and PF--lol |
Re: NTPA pro stock classes turbo limits
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Fred
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There’s not a 6.0 in and out turbo in that big PS class! |
Re: NTPA pro stock classes turbo limits
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Registered: 12/19/2016 Posts: 1,186 |
I thought it was unlimited inlet size and exhaust was 6.0 inches. Brent Yaron Hooked Up Pulling Productions hookeduppullingproductions@gmail.com |
Re: NTPA pro stock classes turbo limits
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Moderator Registered: 03/19/2018 Posts: 669 |
Correct. 6.0 bore spec on exducer. Inlet is open. 6.4+ anyone? No? No one admits that? Hehehe...
CP |
Re: NTPA pro stock classes turbo limits
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Registered: 08/10/2015 Posts: 37 |
What is the box turbo, some sort of Holset? and who are the suppliers? |
Re: NTPA pro stock classes turbo limits
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Registered: 02/18/2018 Posts: 245 |
Wimer only for now |
Re: NTPA pro stock classes turbo limits
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Classic super stock is 2.75” inlet and 3” outlet |
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