FAST intake manifold questions
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,108
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
I don't know why some people get themselves so locked into dyno numbers when they talk about performance mods. If all it took was big dyno numbers to get the best times at the track, the performance list would look a whole lot different than it is. Don't forget that tuners and sellers of performance parts have a real incentive ($$$) to make their work as attractive as possible by whatever means they have at their disposal, which includes tricks to make the dyno numbers bigger than reality.
Racer
Joined: Aug 2017
Posts: 296
Likes: 76
From: Virginia
As I have the fastest stock head stock cam M6 car on the site with a 10.58@131MPH I will say I am swapping to a mid length runner fast and NW102 looking for power over the curve so I can effectively pull gears at 7000 - 7100 RPM and will be looking for 10.3x@133-135MPH. The car already trapped 132 this past april. Some people say 10HP isnt worth the money. To me its worth every penny as I have yet to maximize my Bolt on set up. I am still utilizing the factory cold air intake with a home made ram air set up that sees a sustained 99-101KPA in a pass. I do have the big no no in rocker arms on my car and a crank scraper. So I care less that I can not be on a bolt on list lol My dyno numbers are 453SAE or 468STD use which ever makes you happy for my car 
As far as header choice I went with the Hooker Tri Y which are 2"x2 1/4"x3" and they work very well. Not sure I would consider anything less then 1 7/8 for a good bolt on car that sees the drag strip. You only pass through the lower RPMs briefly and thats the only benefit of 1 3/4" headers. Gear would be the next best mod with a proper stall OP and a tune. Good Luck and Have FUN
As far as header choice I went with the Hooker Tri Y which are 2"x2 1/4"x3" and they work very well. Not sure I would consider anything less then 1 7/8 for a good bolt on car that sees the drag strip. You only pass through the lower RPMs briefly and thats the only benefit of 1 3/4" headers. Gear would be the next best mod with a proper stall OP and a tune. Good Luck and Have FUN
Last edited by lazerlemonta; Aug 10, 2018 at 10:15 AM.
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,108
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
^^^And here's the current record holder on this forum, who BTW followed all the forum rules and safety requirements of NHRA and the track.
External Engine Modifications LS3 (Bolt-Ons)
10.802 @ 126.84 - HOXXOH - 08 A6 F55 - CAI, conv, ptb, Z06 Exhaust, tune, & more, DR - (6966)
Racer
Joined: Aug 2017
Posts: 296
Likes: 76
From: Virginia
^^^And here's the current record holder on this forum, who BTW followed all the forum rules and safety requirements of NHRA and the track.
External Engine Modifications LS3 (Bolt-Ons)
10.802 @ 126.84 - HOXXOH - 08 A6 F55 - CAI, conv, ptb, Z06 Exhaust, tune, & more, DR - (6966)
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,108
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
BTW, I hope you changed valve springs when you changed the rockers, since the stock springs don't live long above 7000 RPM even with stock rockers.
Racer
Joined: Aug 2017
Posts: 296
Likes: 76
From: Virginia
Probably a whole lot more than just.40 (blower, cam, heads, etc), but I drive it all over the USA and desire a higher degree of reliability without the additional maintenance requirements.
BTW, I hope you changed valve springs when you changed the rockers, since the stock springs don't live long above 7000 RPM even with stock rockers.
BTW, I hope you changed valve springs when you changed the rockers, since the stock springs don't live long above 7000 RPM even with stock rockers.
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