Mustangansta

Can anyone tell me the 1/4 mile time differences for the 4.6 GT manual and the automatic transmissions??????

paco_pony

i've heard .3 sec slower for the auto. 13.5 for manual and 13.8 for auto.

if you can give me the transmission ratio's and rear diff ratio then I will calculate it for you.

Mustangansta

Wow your good. I don t even know where I can get that but trust me i'll work on it and let you know. thanks a bunch.

LEJAY

TR 3650 3 : 55
Auto 3 : 31

Mustangansta

is there any particular site or book i can read or go to and learn more about gears and ratios

also can i drag and get good performance from the automatic

paco_pony

here's what I get...

0-60 4.88 sec
60 ft 2.12 sec
1/8 8.78 sec
1/4 13.67 sec


this assumes power-breaking to 2500 rpm on launch

my model predicts stock 5 spd at 13.53 in the 1/4. I think the difference is a little extra torque/power loss in the automatic drive train due to torque converter & other stuff.

dkano

If these numbers are all true then that 93 tune from Brenspeed combined with the C&L intake is a heck of a mod, 'cause it dropped .5 seconds for me in the 1/4 mile!

Mustangansta

5 whole seconds? do you know how much faster that is? wow - thanks for the feed back gang -

NewRoushPonyOwner

paco_pony, do you have a choice on your model for a vert? How much does that slow an auto GT down?

doc0075579

I have an 06 Vert and my 1/4 time was 12.794, this is with JBA LT's, H-pipe, Magnapack, C&L CAI and Evolution tune. However, this was on a Mustang Dyno which had a simulated 1/4 mile so I am not sure how close these are. Still the darn thing seems pretty fast!