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So what do you think is causing a difference of 25 HP between the two vehicles ... could it be the CAI choices?
More than likely dyno variances. A CAI isn't going to account for 25-30 difference in hp/torque. Dynos are good for tuning and comparing against yourself, other then that the track is a better judge.
Here is my 08 Coupe/A6/2.56 rear, with approx 46k miles. I don't have any baseline dyno sheets but with the headers installed and untuned the initial pull was 381 hp.
Mods:
LG 1 3/4 super pro headers gutted cats
Borla Stinger ( 3" version from Z06)
Halltech KillerBee w/hive
I was told that with the fresh oil change it my be off a pony or two....until the oil was broken in.
My car put down 369whp on a Dynodynamics stock, added a Vararam (supposedly doesn't show much HP), headers 1 3/4" and NPP then 93 Tune and got to 418whp. I got a 60whp increase from stock, but that was moving to E85 as well. This a M6 though, so not sure if this helps.
The E85 should have been roughly responsible for about 30Hp.
If you check the forum vendors you'll see the Pfadt headers are now available again. I'm contemplating a set myself but have yet to decide if they are worth the extra cost as opposed to a set of 4 into 1.
Mike
I don't have a dyno# but I understand that if you know the weight of your car with driver and the 1/4 mile "MPH" there are formulas out there that can get your rear wheel "real world" HP within a percent or two.
My 2010 GS (A6) has went 122 MPH (not my record ET run) in the 1/4, total weight w/driver approx. 3570 lbs. Anyone have a HP# for this mph & weight?
2010 GS MOD SPECS.
1) 1 3/4" headers, no cats & 3" X-pipe connected to the stock (430 HP) mufflers. < save some money!
2) 93 octane DiabloSport "canned" tune.
3) OEM air assembly with oem paper filter that I converted to a CAI. < cheap
4) 160 stat.
Running on all four stock Goodyear runflats & stock converter.
Check my old threads & posts for pics and How to. My best MPH is 125, check the "Bolt-On" GS list and I must say I don't think any GS or lighter standard body LS3 has went that fast with just those type of mods.
Last edited by C7/Z06 Man; 02-03-2016 at 09:48 PM.
I traded in the GS on a 15 Z06 but I took my complete CAI system off including the cutout shroud before trading the GS in. I live in Maryland, if interested and willing to pick up $150.
That way you could keep all your stuff stock. I went from a best "stock" record pass of 12.31 to a best of 12.01 with just this CAI.
PS: Have the headers and X-pipe too.
Last edited by C7/Z06 Man; 02-03-2016 at 10:25 PM.
I Live in California - hence the 4 Cat System, there was no baseline before I put the parts on, there was a street tune done to dial things in before the Dyno runs/tunning
2009 LS3 A6 with 2.56 Gears - VARARAM, NGK TR5IX, Taylor 8mm wires, 2012-2013 ZR1/Z06 Exhaust manifolds, 3" Catted Downpipes, 3" Catted X-Pipe into 2 1/2" NPP factory Mufflers
Here is my bone stock, 13 grandsport dyno. It's a m6. The green line is after the ganitelli wire install. Wonder what it will make now after the z06 air intake, and the headers, full exhaust, and tune?
03-23-2015, 12:24 PM
