just curious what do you think the average Hp gaines i can get from the longtubes?? i was thinking like 10hp.. does that sound right?
just curious what do you think the average Hp gaines i can get from the longtubes?? i was thinking like 10hp.. does that sound right?
sounds about right.Originally Posted by whitesilvy04
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'94 Chevy Truck: 8.9 et, 408 twins
cool thanks for posting up a comment and letting me know...
lol, any sarcasm there? sometimes it is hard to a response.
As much work as it is to install them, and as much as they cost, I wouldn't even consider installing long tubes if they didn't give a gain of at least 11 horsepower.
2000 Sierra 2500 HD. 408 (11-2007) Whipplecharged, Big (18x24x4) FMIC.
it doesnt take long at all.... i did it with floor jacks, jack stands and hand tools
sprayedenali: i like catching, but not fishinglol...I wish you would never paint your truck...I bet it bugs them that much more that a primered up truck just soggied his Wheaties. good job buddy
DBTBSS: bring Tyler... we need someone to make fun of
MidnightRider: your right im gay
DamnYankee: my nana failed
DamnYankee: confused...if it can't keep up to begin with, how can it keep up
mitch cobb racing: ya, allen played with it for a while, HUGE difference
Headers may only gain you 10 hp on a stock engine but it enhances the performance of other mods as you go along. A cam with stock exhaust won't output as much HP as a cam with LT headers....etc
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
well, i do have a procharger and already had a catback, but 10 seems like a very low gain. i just installed long tubes and y-pipe and on the butt dyno i felt what seemed like 30 or more, the trucks revs like a bike and just freakin roasts the tires in first and second.
2008 Trailblazer SS LS2, K&N CAI, flowmaster 40 series, hp tuned
2004 Trailblazer 4.2, K&N CAI, hp tuned
2002 Camaro Z28 5.7 ls1, lid, slp loudmouth, bbk longtube headers, ory, hp tuned, tr224 cam, ported 243 heads, moser 12 bolt w/ 3.73's and full spool, and a 100 shot just in case. 463whp, 458 wtq 11.32@ 120 1.52 60' on motor no spray times yet
well if allen says 10 i'm sure he knows, maybe my dyno needs to be calibrated.
2008 Trailblazer SS LS2, K&N CAI, flowmaster 40 series, hp tuned
2004 Trailblazer 4.2, K&N CAI, hp tuned
2002 Camaro Z28 5.7 ls1, lid, slp loudmouth, bbk longtube headers, ory, hp tuned, tr224 cam, ported 243 heads, moser 12 bolt w/ 3.73's and full spool, and a 100 shot just in case. 463whp, 458 wtq 11.32@ 120 1.52 60' on motor no spray times yet
I've heard that to even feel a difference, you need at least 25 more HP. I don't know, though.
2000 Sierra 2500 HD. 408 (11-2007) Whipplecharged, Big (18x24x4) FMIC.
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