So I have an A4 with 110,xxx miles catback, volant, suspension work. with 275's on the front and 315 NItto 555r's on the back also with 2.73 gears currently. I dynod 280 and I know i also have clogged cats. I just feel like i have NO power, is all of this adding up? It seems quite difficult to chrip even 2nd gear and I even have problems doing burnouts..
I have 3.73's , headers, ORY, underdrive, plugs, wires all waiting to go on the car.. but as it sits now.. does it make sense i have no power..?
2000 Trans Am A4 3.73 gears 334/338
BBK Longtubes/ORY | Loudmouth II | P&P TB & Smooth Bellow| LS6 Intake | MTI Lid | 25% SLP UD | Bilstein's/Eibach Pro | BMR STB | UMI Subframes | UMI Panhard | Founder's LCAs | Richmond 3.73's | Tuned by Slowhawk
12.8 @ 110.32
It's impossibile to determine if your performance level is "normal" when you already know that something is wrong with the car. Clogged cats can cost you anywhere between 1% to 100% of overall power depending on how much flow is blocked, so this thread is pointless until you fix this variable.
Take care of this issue before you worry about anything else.
__________________ 1998 Camaro Z28 | 1971 Nova SS-350
Previous LSx Vehicles:
2002 Camaro Z28 | 2000 Trans Am WS6 | 1999 Camaro Z28
280 rwhp with a basically stock car w/ plugged up cats? Seems like you're not doing too bad at all, as mentioned the plugged cats could cost you 1% or 100% depending on the amount of blockage, so if you think you're low on power then that's probably it.
What we should be asking is if you know there's a problem then why are you asking if you have a problem? lol
__________________ 1999 Pontiac Formula M6: lid - LS6 intake - GMMG - Strano bars - Koni Yellows - MGW - few other bits and pieces 2013 Ford Focus SE 2006 Suzuki SV650 2007 Yamaha TW200
i dont think its a performance issue at all....i think u have a good tire issue... 315 nt555 arent gonna blow away like a stock 245...or even a 275... I have headers, true duals, !cats, !EGR, !AIR, SLP lid/filter, 4.10's with 315 NT-01's and i dont spin em either...only time i can is if i slip the clutch a little in first and theyll chirp in second, but for the most part, they HOOK. before the 315's, i had some general POS 245's and in first and second u could burn em off all day long....
you have 315 drag radials and 2.73's......enough said
Like subbie said if you can just hollow those cats out if you arent able to install the rest now.
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