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Good evening everyone
I am curious what my 97 A4 with 3.15 gears would run in the 1/4. The car has Texas speed 1 3/4 long tube headers 3 Inch catless x pipe and Billy boat bullet axle back. It also has blackwing filter ported TB and ls6 intake with both motor and trans tuned. Below is my dyno graph. Also I live in FL so Im right at sea level
I have not gone to the track with it because the closest track to me is 2hrs away and I don't to have some go wrong and then have it towed home lol. I'm sure there are several members here with the same mods that do run their car that can offer opinion. Thanks in advance
Im curious about this as well i have a 99 c5 3.15 gears and tsp headers. Is one without the tune and the higher numbers are tuned? You made that much torque at 2200 rpms? May i ask where you got the ported throttle body or how the port work was done? They opened up the beveled part?
Last edited by Justin Raney; Jan 15, 2022 at 01:44 AM.
No unfortunately I never got a base line pull to see what the car made completely stock. The 307rwhp is what it made with ls6 intake and zip tie mod and ported TB and tune. The 2nd graph is with headers and xpipe pipe and blackwing filter and tune.
To answer your other question. I ported the TB myself. It wasn't difficult to do.
There’s a ton of factors to gauge what a car will run, most importantly starting with the driver. I was able to get my C5 to go 11.80 with only 315 hp at the wheels. My buddy Pete went 11.3 I believe with around 350wheel. My other buddies Bolton c5 went 10’s with the stock heads/cam and no spray. All three above cars were tracked regularly, broke parts more often than wanted, but ran their asses off. We were also in the northeast so we would often see negative DA in the spring/fall/winter. I’ve also seen guys with 10 second factory cars that can’t break into the 12’s.
No unfortunately I never got a base line pull to see what the car made completely stock. The 307rwhp is what it made with ls6 intake and zip tie mod and ported TB and tune. The 2nd graph is with headers and xpipe pipe and blackwing filter and tune.
To answer your other question. I ported the TB myself. It wasn't difficult to do.
So, headers/x-pipe and a black wing netted 15 hp? Am I reading this correctly?
As far as quarter times you’re looking at low 13’s. A Z06 cam would give you about a thousand more rpm and drop your et by a second, or more.
I have a 2004 m6 and have been looking at a mild cam that would drive well, but maintain the hp curve to 6000+ rpm. Stock, our cars start gasping after 4500.
Check out this LS6 cam variant from SDPC. It would need the addition of GM LS6 valve springs.
You should take a few days off and drive to Bradenton for the NMCA race on 3/18-3/20.
Race your car in the rumble class. And true street. It’s a blast and a great way to wring out your car. Meet a lot of great folks that like to race and party.
nmcadigital.com
I bet your car would be pretty competitive in the 13.0 class.
Curious what it would run
