WS6SP33D

iTrader: (2)

Two weeks ago i take my bone stock TA to the track and was happy with results 13.7@102 60'was 2.02 so last week, i order and install a magnaflow catback and went back to track tonight. Ran about 7 times and each was the same or very close, best tonight was 14.4@94 60'was 2.23 whats the deal is it the catback? sure i can understand it was alittle warmer today but not that much, any advice would be nice thanks guys

11SECSS

iTrader: (199)

looks like your 60ft was a little slower this past time and weather will affect your times.

waterbug1999

iTrader: (3)

......x2

WS6SP33D

iTrader: (2)

right i understand with the weather been racing for a while but .7 of a sec?

zracer323

iTrader: (12)

An 8mph drop is not due to a slower 60'. How did the weather compare between the two runs? If they were not drastically different, I would say you have something wrong.

Start with the bascis...check plugs, wires, fuel filter, clean MAF, etc.

WS6SP33D

iTrader: (2)

thats what im saying and ive did nothing except exhaust, it was about 5 degrees warmer today, but i even ran after dark this time so i dont know. Same launching, same track, and everyone else where running their normal times.

waterbug1999

iTrader: (3)

heat soak will kill a few MPH... Anything bangin after you added the exhaust? could be pulling timing due to a false knock.

WS6SP33D

iTrader: (2)

Bangin? sorry not really sure what that means but if its like knocking, or rough idle no everything is fine

waterbug1999

iTrader: (3)

Usually its the after market "Y" pipe that bangs on the floorboard. But, it sounds like you didnt add that. When it does though, the computer thinks its knock and pulls timing, so it kills hp.

I wouldnt sweat it just yet.. Find a cool evening and go back and give it a whirl.

WS6SP33D

iTrader: (2)

well learn something new thanks, but no it still has stock pipe, kinda hard not to sweat it but im gonna try it again on another day, thanks for info

NHRAFORMULA00

iTrader: (2)

maybe you have some bad gas!

WS6SP33D

iTrader: (2)

Yeah i keep looking at all the things it could be i will just go back next wek and see what changes then make excuses lol thanks agian

transamtom

iTrader: (8)

How much gas did you have in it?

I try to get to the track with about a 1/4 tank.

Bring 5 gallons in a jerry can to fill up after racing or to top up if you make a lot of passes.

96onele

What's a jerry can?

transamtom

iTrader: (8)

A red plastic DOT approved container for gasoline.

WS6SP33D

iTrader: (2)

Both times i had about 1/2 tank maybe a little more this week

Nitroused383

iTrader: (10)

I'd check all your plugs / wires / coil connections. Sounds like you're running on 7 cylinders.

WS6SP33D

iTrader: (2)

yeah im gonna do plugs, wires, and fuel filter this week, just because i dont know the last time it was done.