What engine you tuning?

[MercedesTech]

Another 4.6 guy over here.

My 0-60 is closer to 10 seconds I think !

Also on a 6" lift, and running 3.73 gears, true 35" tires load range E (heavy SOB's !) 18" rims, and no real power mods yet. Too many other projects going on right now.

If its dry when I get home, might hop in the truck to see what I can get. Been awhile.

[Desert Racer]

5.4 in mine and did a 0-60 run got a 8.6X with 35's and 3.73 gearing yet the tire size was set at 23XX which is wrong so it should be better.

[Cleatis18]

What altitude are you guys at? I'm at 5000 feet and I could only muster a 9.04 sec 0-60 time out of mine with my current mods. I need some custom tunes pretty bad, but then again I only have 5200 miles on mine right now. Will it be substantially better once I get near the 15k, 20k mark?

[BlackSTX]

I never checked my 0-60 or 1/4 times. Perhaps when I get my programmer back I'll try a few runs on stock, and one of the performance tunes. Just have to think of where I can get some open road...requires a little drive to the farm lands to get away from traffic.

[Cleatis18]

BlackSTX, if you get me some 0-60 times I woudl surely appreciate it or anyone else for that matter. Mine seems really slow, even for a stocker that seems pretty slow, so I am curious what others are running. Thanks

[4.6 Punisher]

Just 2 more days and I can finally place my order for the Gryphon. Seriously can't wait.

[Circuit]

Best 0-60 as of right now is 9.12 on Gryphon stock level 2 but I can't find a place to do it without getting major wheel spin which makes my foot let up a bit without me thinking.

Once I get as much of this 87 octane out I'll be filling it up with 94 and setting it to level 3... then I might have to buy some new tires...

Oh and the belt chirp is awesome at wot when shifting. I have never owned a vehicle that was as fast as this thing is now. I forgot I had a V8 under the hood. I used to have a 1976 Chev C20 with a 350 and my little 281 Windsor out does it hands down now.

[bustintheirazz]

I checked mine, I am getting 7.63 for my 0-60. Im running a custom level 2 and have 33" Load range E. Does anyone know how to convert your tire size to the (mm) on the gryphon? When I do my conversion of 33" to mm I get 838.2mm. Something that I am missing?

[Jackpine]

Originally Posted by bustintheirazz

I checked mine, I am getting 7.63 for my 0-60. Im running a custom level 2 and have 33" Load range E. Does anyone know how to convert your tire size to the (mm) on the gryphon? When I do my conversion of 33" to mm I get 838.2mm. Something that I am missing?

Sure - the 838.2 is your tire's diameter in millimeters. You need the circumference, so multiply that by pi, which gives you 2633.3 mm. But then, deduct some for "squish" (often about 3%) so multiply by 0.97 and you'll have 2554 mm, which is the size I'd try.

- Jack

[Power Hungry]

If at all possible, use the manufacturers website to determine the "Rev per Mile" rating of the tire. Then to convert to millimeters, use this formula...

1609344 / Rev per Mile = Tire Circumference in mm

That helps eliminate any guesswork.