E.T. Gains with headers

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Jan 26, 2007 | 06:42 PM

kevins2000LS1

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From: Greenville,NC

E.T. Gains with headers

what gains can i expect from some pacesetter long tubes w/ 3' y-pipe

Jan 26, 2007 | 07:18 PM

TransAminal

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You'll probably gain about 20-25WHP.

With a tune, guys on here have gained 35-40WHP, which is very impressive.

Plus the engine runs more efficiently with LT's and a tune, so fuel economy can increase as well

Jan 26, 2007 | 07:34 PM

phoenixv8

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From: south texas

quarter mile i gained about half a second.

Jan 26, 2007 | 08:16 PM

BLK02TA

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From: Fort Knox, KY

Quote:

Originally Posted by phoenixv8

quarter mile i gained about half a second.

So you went from a 13.8 to a 13.3 by installing longtubes?

Jan 26, 2007 | 08:27 PM

BayAreaSS

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From: Bay Area, CA (Pittsburg)

I was wondering the samething. I just added LT's and duals and my car feels a lot stronger! It also has a street tune.

Jan 26, 2007 | 09:46 PM

Rob98LS1

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From: Sacramento

picked up about 3 tenths without a tune. My lts were stepped though .

Jan 26, 2007 | 09:53 PM

bene

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From: Texan in Colorado

Quote:

Originally Posted by Rob98LS1

picked up about 3 tenths without a tune. My lts were stepped though .

I'm w/ him... I was running 13.5s prior LTs and now run consistent 13.1s w/ LTs w/o tune also.

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Jan 27, 2007 | 03:46 PM

chrs1313

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i would say same conditions...meaning air, launch 60ft you are going to gain at the most 2mph or .2 tenths with lontubes(this is only lontubes, and y not catback change or change to dual)...the stock exhaust and catted y flows better than you think...look at my times for proof...i am hoping to get 15 hp or .15 tenths from my qtps and ORY i will be shocked if i get 20hp IMHO

Jan 27, 2007 | 03:48 PM

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davered00ss

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You will see at least .3

Jan 27, 2007 | 04:04 PM

#11

chrs1313

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Quote:

Originally Posted by davered00ss

You will see at least .3

we will see when i get to the track and compare da and launches...really think about it though i would be at 118.4mph at 3330 weight (now) with -950 DA the fastest stock internal is what 121 mph and is 400 lbs lighter which is another 4mph so i am at 122.4mph, also i could still add gears and a 90/90 combo which i would say is worth at least 1mph together so i am at 123.4mph now...my da was 372 feet better which i calculated every 800 ft is around a tenth or 1mph so that puts me right around 123mph...so i am going to be 2 mph faster than the best SI car, just seems a little high to me to say 3mph at least, FWIW

also not sure if they were on an EWP too with is worth another 3-5rwhp or .5mph

so maybe even 123.5mph

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E.T. Gains with headers

E.T. Gains with headers

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