Could you send me that spreadsheet? PM for email address.
A6 Drag racing. 3.15 with 26" tire vs 3.31 with a 28" tire.
- Thread starter Bmr4life
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Could you send me that spreadsheet? PM for email address.
126.94MPH on a 28" tire at 7500 in 4th...
That's wha I meant, stuck to a 28" tire, no Sportlines....
what your missing here is the converter when your talking about the fastest coyote a6 cars.
your correct that most of the fastest high stall cars run 3.31's, mainly due to traction issues that folks don't want to deal with so the 3.31/28's keep them in 3rd at the stripe, although most still go thru at an rpm that is uncomfortable on a stock bottom end for some folks.
the fastest non converter cars use more gear & go across at the top of 4th. I have 4.10's & 27's (ie. 295/45 17 et street II's) & go across at 7k in 4th with the et/mph in my sig.
the mph/gear chart listed seems pretty solid but you'll never see any of the mph listed with your combo as it sits so it'ss kind of a mute point.
with a season on my combo now, my advice to someone in your shoes would be to decide weither or not your doing a converter & gear the car accordingly, knowing before hand that if you go easy on the gears in preperation for a converter then you'll be leaving some et on the table till you get the converter (I would do both at the same time if the converter is a solid plan)
I've gone back and forth about getting a converter. Problem being that its roughly $2k or more installed and for me that money would be better saved up and added to the FI fund.
So what about a A6 with 28" tire and 3.15 gear with a 100 shot?
If you're doing a TVS or Whipple, I wouldn't change anything except for suspension pieces until you do the blower.
You may not need anything else, depending on your goals and wants.
Is that because those blowers make instant torque?
+1^ if your getting a blower, leave the car alone for now & save up for it.
unless your trying for a record of some sort, you may find the car will be plenty fast enough with just the blower.
there are also safety concerns if you still want to go to the track & care about the rules (ie. cage, etc) if you go too far with mods (although the blower alone should get you into cage teritory)
I think 26's vs 28's on an otherwise stock a6 car might just be a wash.
26's might help a little on the starting line but hurt a little down track, 28's would be the oposite.
if I personally was going to stay with the 3.15's & could stand how horrible the car looks to me with the tiny tire on it, I would try 26's first, get any help I could on the 60' & worry about down track with the tune.
I've been running a 26 and thinking aboyt making the swap. Here lately my cars 60 has been bad.
1.94-1.96 12.13-12.17@116
thats right where I was at with the old tune, 1.91/12.10/116 average.
obviously you have some mods anyway, when you mentioned 3.15's I was thinking the car was stock.
I know this thread is more for an auto trans. But I have a question. Right now now I have 3.73 with my manual trans with a whipple. I run 28in tires and was wondering if it would benefit me getting 3.15 vs 3.31 because I have a chance to swap my rear end with a buddy of mine with 3.15 and no cost out of pocket just my time to do it.
I have good 28" Nitto 555r's 275/60r15 my car is a 2014 Auto with a Bama 93v2 tune, off road x, ported stock intake and throttle body and a MIT. Nothing major. I am planning on getting a Circle D 3c later on this fall. Do you think I would be better off keeping the 28's or trying to sell them and run 26" tires to run with the stall? I don't plan on changing the rear gear as I would to ultimately run a Procharger down the road.
I say stay with the 28s. Esp with a blower coming. Plus as mentioned the 26in tires look weird on these cars.
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