03/04 346 camaro/firebird H.P. adjustment

[junior barns]

As far as the camaro/firebird hp it is probably intended for the corvette as there are a few that has been going fast and rated far below their cousins! Look out corvette owners Nhra is coming for you! LOL!!

[Dwight Southerland]

Originally Posted by junior barns

Look out corvette owners Nhra is coming for you! LOL!!

That's not new.

[farmco r/sa]

under the nhra stock car classification for 2003 chevrolet section the change is under "GT factors." at the top, it is the yellow highlighted change dated 1/1/14. at the risk of sounding nieve what is a "GT factor" in stock???

[Stock726]

Originally Posted by farmco r/sa

under the nhra stock car classification for 2003 chevrolet section the change is under "GT factors." at the top, it is the yellow highlighted change dated 1/1/14. at the risk of sounding nieve what is a "GT factor" in stock???

This is because of the new rule that you can only run combinations that don't exist in classes that don't exist.....

[farmco r/sa]

Originally Posted by Stock726

This is because of the new rule that you can only run combinations that don't exist in classes that don't exist.....

interesting.... very interesting. more confused now..

[countrypuppy4865]

Upon my own research, I have gathered that the 405hp engine for GT was previously rated the same as the regular LS1, but the 405hp version has only one casting number for the head. This casting number is not the same as any other LS1 engine. Therefore this makes this combo different than the others. Is there 90hp more in this head? Absolutely not. However, it is listed with only one casting number for the head.

[Ed Wright]

Originally Posted by countrypuppy4865

Upon my own research, I have gathered that the 405hp engine for GT was previously rated the same as the regular LS1, but the 405hp version has only one casting number for the head. This casting number is not the same as any other LS1 engine. Therefore this makes this combo different than the others. Is there 90hp more in this head? Absolutely not. However, it is listed with only one casting number for the head.

Jimmy, isn't that the Vette LS6? 405 is the factory rating, I believe. If so, it should be stick-only, like the 1996 LT4 Vette engine. Different cam. The differences are moot for an S or SS engine. No reason to use it.

[goinbroke2]

Originally Posted by Stock726

This is because of the new rule that you can only run combinations that don't exist in classes that don't exist.....

Exactly, that's why the 2013 mustang with the powerstroke is in SD/C and SD/CA. Personally I think the 400hp factory rating is a little high and it should actually be a SD/D or SD/DA combo.


edit: Just realised that SD is for naturally aspirated diesels, should of been SDT/C and SDT/CA

[farmco r/sa]

Originally Posted by goinbroke2

Exactly, that's why the 2013 mustang with the powerstroke is in SD/C and SD/CA. Personally I think the 400hp factory rating is a little high and it should actually be a SD/D or SD/DA combo.


edit: Just realised that SD is for naturally aspirated diesels, should of been SDT/C and SDT/CA

excellent. it will be cool to see more diesels in stock. is there a VP accepted fuel yet? D10 ?

[442OLDS]

Originally Posted by farmco r/sa

excellent. it will be cool to see more diesels in stock. is there a VP accepted fuel yet? D10 ?

Ultra-low-sulfur diesel (ULSD)