Ford Mustang Forum - View Single Post - would u trade ur manual for a auto?
View Single Post
post #29 of (permalink) Old 09-25-2006
mot250's Avatar
Joined: Feb 2006
Location: Spring Grove
Posts: 240
Originally Posted by kj_cinci
I don't know how good of a driver you are but that sertainly make a diff. Anywho; between a auto and a stick with stock gearing and the same tires and HP the auto will win.

I have not driven a stock auto, but a CAIed auto with after cat exhaust will do low 13's. Quick burn of the stock tires (cleaning, not heating! ). Hold the brake, hold about 3,500 rpm, let go of the brake...

I am a beginner on the track with four wheels... but I think it says somthing that I drowe my (then) ~340 rwhp car to 13.14 and a 270 rwhp auto to a 13.25, both with ETs...

Stock they are pretty close but as the power goes up the auto becomes easier and should win.

High powered too the auto, even stock autos seem to do better... see post 5...
I am, by all meanings of the word, a novice at the 1/4 mile. This is the first car I've had on the track and I've only been there 4 times since April 2006.

On the surface, I'd likely agree that given two novice drivers with identically prepared cars, with the only difference being a manual in one car and an auto in the other, the auto would probably win.

Now for my immediate experience with my 06 manual trans vs a friend's 05 auto. His times with a CAI and tune were consistantly in the 13.8 to 13.7 range, with a 13.68 or so as a best time on stock street radials (17's and 3.31 gears). When I was stock, I was all over the board ranging from 14.2 all the way down to my best but un-repeatable 13.67, again on stock street radials (18's and 3.55 gears). So with my inexperience, sure, autos are more consistant. I'll give you that. But faster? Still open for discusion.

I've read other reports of similarly modified (CAI and tune) autos also being in the same 13.7 to 13.8 second range. Yet when I added these mods to my manual trans (granted, some keen-eyed folks will notice LCA relocation my brackets in my sig as well), I can get down to 13.43 (still on stock street radials). I really don't think the LCA relocation brackets did a heck of a lot with the stock tires as my 60' times were still in the 2.09 to 2.18 range.

I just don't think that driver error could be that bad to make a similarly modded auto perform that poor. Or are there auto-specific driving tips for the 1/4 mile that can make up for that big of a difference when not followed?

I also know that there are factory heros and factory lemons, depending on the batch of parts and the quality of the assembler's on any given day. Could this be the issue with my friend's auto compared to my manual?

2006 Legend Lime Mustang GT/Manual Trans/some mods(tired of updating) 13.257 @ 109.36 on stock 18 fanblades and stock BGFs wth CAI, tune, UDPs
1967 Lime Gold Galaxie 500 XL/390 4bbl/Toploader
1966 Mustang Coupe/bare metal (rebuild in process-slowly)/engine&trans TBD
mot250 is offline  
For the best viewing experience please update your browser to Google Chrome