nhra hp refactor ???

FED 387 · 07-11-2009, 01:19 PM

Where do you look to find the refactored HP per NHRA on any engine in their guide???? Thanx fed387

Alan Roehrich · 07-11-2009, 01:40 PM

It's in the Stock Car Classification Guide. There's Factory HP and NHRA Factored HP listed.

Dwight Southerland · 07-11-2009, 03:27 PM

On the charts, look at the column of power to weight factors; the factory engine displacement and hp will be at the top, the NHRA factor(s) will be at the bottom. Sometimes there will be multiple columns for the same engine, each with an annotation for the classification. (i.e. Stock manual trans, Stock auto trans, Super Stock manual trans, etc. etc.)

07-11-2009, 01:19 PM	#1
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,422 Likes: 532 Liked 333 Times in 180 Posts	nhra hp refactor ??? Where do you look to find the refactored HP per NHRA on any engine in their guide???? Thanx fed387

07-11-2009, 01:40 PM	#2
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,123 Likes: 1,581 Liked 1,874 Times in 422 Posts	Re: nhra hp refactor ??? It's in the Stock Car Classification Guide. There's Factory HP and NHRA Factored HP listed. __________________ Alan Roehrich 212A G/S

07-11-2009, 03:27 PM	#3
Dwight Southerland VIP Member Join Date: Dec 2001 Location: Arkansas - In the middle of everything. Posts: 2,001 Likes: 64 Liked 780 Times in 194 Posts	Re: nhra hp refactor ??? On the charts, look at the column of power to weight factors; the factory engine displacement and hp will be at the top, the NHRA factor(s) will be at the bottom. Sometimes there will be multiple columns for the same engine, each with an annotation for the classification. (i.e. Stock manual trans, Stock auto trans, Super Stock manual trans, etc. etc.)