ET gain by switching to Auto? - Ford Mustang Forums : Corral.net Mustang Forum
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post #1 of 41 Old 06-01-2009, 08:19 PM Thread Starter
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ET gain by switching to Auto?

Everyone tells me the turbo cars are so much faster with an auto, lets hear what kind of gains you have seen at the track by switching to auto.


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post #2 of 41 Old 06-01-2009, 08:24 PM
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From what I've seen, pretty much any car will benefit from running an auto. No question. I've seen 2-3 tenths off an '03 Cobra, easily. If racing is your main purpose, the auto is the way to go.


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post #3 of 41 Old 06-01-2009, 08:41 PM
 
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Once I get my car to cool and tuned, I will be going with a C4 & 3.27's... should be driveable and put down good #'s. I would suspest a good different, 3-4 tenths is probably reasonable.. more or less depending on driver.
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post #4 of 41 Old 06-01-2009, 09:15 PM
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Ratez is on here running 10's something with simular combo and numbers i have. He has an ole 4 eye with an auto, you have seen my sucky passes if that tells you anything. I would think with a turbo an auto is going to pick up quite a bit more than your normal N/A car. I may make the swap if I cant get my turd running any faster

Stock block, GT40 heads, Explorer intake, 67mm, 10lbs, 431HP 497TQ on 110 octane. 12.01 @ 123
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post #5 of 41 Old 06-01-2009, 09:40 PM
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sounds like the turd is fine... the driver needs to be faster... you will always make more power to the wheels through a manual... though if you cant drive you cant drive......
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post #6 of 41 Old 06-01-2009, 09:54 PM
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sounds like the turd is fine... the driver needs to be faster... you will always make more power to the wheels through a manual... though if you cant drive you cant drive......
I agree ill only ever run a stick but the majority of people you see going down the track cant shift. Therefore auto bein faster
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post #7 of 41 Old 06-01-2009, 10:10 PM
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It doesn't matter who the driver is. A human being can not out-shift an automatic transmission. The manual tranny will always put down more hp on a dyno, but the auto will always put down more average hp going down the track.
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post #8 of 41 Old 06-01-2009, 10:35 PM
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Auto never falls outta boost between shifts either. It's more consistent too, and a transbrake is a hell of an invention, especially with a turbo car.
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post #9 of 41 Old 06-01-2009, 10:38 PM
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BS, the driver does matter! Just because you can't drive doesn't mean it can't be done.
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post #10 of 41 Old 06-01-2009, 10:52 PM
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1 full second going to auto.


93 LX, 8 sec twin turbo street car
http://www.youtube.com/watch?v=Rx8FF1eW79Y
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post #11 of 41 Old 06-01-2009, 11:53 PM
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1 full second going to auto.
sorry that proves nothing....

this proves all!
http://www.youtube.com/watch?v=C9ccEQnxGoE


ENOUGH SAID! show me a auto that can beat that!
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post #12 of 41 Old 06-02-2009, 02:26 AM
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sorry that proves nothing....

this proves all!
http://www.youtube.com/watch?v=C9ccEQnxGoE


ENOUGH SAID! show me a auto that can beat that!
How does that video prove all, let alone that a manual transmission is better for drag racing than an auto? What kind of tranny is in that car? Does it still utilize a clutch?

I'm not arguing this point as someone who has an auto because I don't. I've always banged gears. But, there's no denying the fact that an auto will get you a lower ET in the same car.
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post #13 of 41 Old 06-02-2009, 04:57 AM
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Converters work in ways a clutch cant, NO MATTER HOW FAST YOU SHIFT. The RECORD for a 5 speed Mustang is a whopping 8.9x, the F-Body record is like one full on race car in the high 8's with a T56 (LS1), then one car in the low 9's (LT1). The auto stuff is always faster when dialed in compared to a stick. Lenco's and stuff like that are another matter entirely.

I hate autos for the most part and wish more people would push the stick stuff to some fast times like a few of the Supra & Viper guys have done, but even in those cars running 7.90's with a stick, their auto counterparts are faster as well.
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post #14 of 41 Old 06-02-2009, 06:20 AM Thread Starter
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Guys I know autos are faster, im looking for people that have swapped to autos and gained .xxx on their turbo cars.

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post #15 of 41 Old 06-02-2009, 10:31 AM
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Originally Posted by Foxman1992 View Post
sorry that proves nothing....

this proves all!
http://www.youtube.com/watch?v=C9ccEQnxGoE


ENOUGH SAID! show me a auto that can beat that!
Try this:
http://www.youtube.com/watch?v=Rx8FF1eW79Y

93 LX, 8 sec twin turbo street car
http://www.youtube.com/watch?v=Rx8FF1eW79Y
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post #16 of 41 Old 06-02-2009, 08:47 PM Thread Starter
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ttt

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post #17 of 41 Old 06-02-2009, 08:49 PM
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I just swapped in a th400 and will be at the track this Friday.....if it doesn't rain (cross fingers).

I did lose almost 100rwhp going auto but if I can stick a launch I really don't mind.

BTW, I have put on a couple hundred miles on mine street driving with no problems at all actually pretty cool shifting without a clutch.

- 89 Turbo coupe
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post #18 of 41 Old 06-02-2009, 08:52 PM
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It this engineered?

I have been a huge fan of that car!!!!

When my car grows up it hopes to be like that one.

- 89 Turbo coupe
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post #19 of 41 Old 06-02-2009, 09:27 PM
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It this engineered?

I have been a huge fan of that car!!!!

When my car grows up it hopes to be like that one.
Yeah, thanks.

93 LX, 8 sec twin turbo street car
http://www.youtube.com/watch?v=Rx8FF1eW79Y
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post #20 of 41 Old 06-02-2009, 09:28 PM
 
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Brutal video.
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post #21 of 41 Old 06-02-2009, 10:21 PM
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Dude... Haulin' serious ass with no aero work... NICE.

What's your suspension setup, if you don't mind sharing?
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post #22 of 41 Old 06-03-2009, 12:09 AM
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Originally Posted by SonicFox View Post
It doesn't matter who the driver is. A human being can not out-shift an automatic transmission. The manual tranny will always put down more hp on a dyno, but the auto will always put down more average hp going down the track.
X2

1992 LX coupe-Incon twin turbos
1983 GT Widebody
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post #23 of 41 Old 06-03-2009, 03:08 AM
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Seen your car at the Sutton Ford Car show....Bad ass ride for sure!!!!
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post #24 of 41 Old 06-03-2009, 10:44 AM
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Dude... Haulin' serious ass with no aero work... NICE.

What's your suspension setup, if you don't mind sharing?
Don't want to hijack this guys thread, so real quick

Front = tubular K, 70/30's with coilover
Rear = stock springs, cheap Strange single adjustables, Wolf upper/lowers, Wolf single ARB

93 LX, 8 sec twin turbo street car
http://www.youtube.com/watch?v=Rx8FF1eW79Y
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post #25 of 41 Old 06-03-2009, 10:44 AM
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Seen your car at the Sutton Ford Car show....Bad ass ride for sure!!!!
Thank you sir.

93 LX, 8 sec twin turbo street car
http://www.youtube.com/watch?v=Rx8FF1eW79Y
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post #26 of 41 Old 06-03-2009, 11:22 AM
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sick car xxx/enginerd. I followed all your stuff on turbomustangs and the car is a killer street car. Ever tryed launching on the street/blacktop. I have pretty much copied your setup unintentionally but in an sn95 body. Im running the same tire, suspension, tranny, same turbos etc. You have the solid roller over me though as im still running a hydraulic. Hate to continue the hijack but your car is the ####.

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post #27 of 41 Old 06-04-2009, 12:47 AM
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My car is not a Mustang, it's a 65 Cobra replica. But I can tell you that I made a couple runs with the 5 spd and my best was 11.7 at 128. I switched to a built AOD and immediately went 10.31 at 137, but was booted off the track. An auto is much more controllable in a turbo car, and it does not fall off boost between shifts. Cheers.

1965 Cobra replica with twin turbo Dart block 331
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post #28 of 41 Old 06-04-2009, 08:47 AM
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My car is not a Mustang, it's a 65 Cobra replica. But I can tell you that I made a couple runs with the 5 spd and my best was 11.7 at 128. I switched to a built AOD and immediately went 10.31 at 137, but was booted off the track. An auto is much more controllable in a turbo car, and it does not fall off boost between shifts. Cheers.
have a build page and pcitures of this car? I love those cars and a TT version sounds awesome.

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post #29 of 41 Old 06-04-2009, 08:51 AM
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Years ago we switched from a Tremec 3550 to an Art Car C6. Car lost 100rwhp and gained almost a second in the quarter. I do not remember the exact numbers beyond the power loss but I know it is what put the thing into the 9s.

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post #30 of 41 Old 06-04-2009, 01:05 PM
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sorry that proves nothing....

this proves all!
http://www.youtube.com/watch?v=C9ccEQnxGoE


ENOUGH SAID! show me a auto that can beat that!
What tranny is in this car??? He was only in 2nd gear maybe 1/2 second, sounds like it has an air shifter.

Stock block, GT40 heads, Explorer intake, 67mm, 10lbs, 431HP 497TQ on 110 octane. 12.01 @ 123
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post #31 of 41 Old 06-04-2009, 01:44 PM Thread Starter
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Thread derail ftmfl

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post #32 of 41 Old 06-04-2009, 02:26 PM
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Thread derail ftmfl
A couple people have told you they gained about a full second or more going to an auto.

93 LX, 8 sec twin turbo street car
http://www.youtube.com/watch?v=Rx8FF1eW79Y
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post #33 of 41 Old 06-04-2009, 07:30 PM
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My car is not a Mustang, it's a 65 Cobra replica. But I can tell you that I made a couple runs with the 5 spd and my best was 11.7 at 128. I switched to a built AOD and immediately went 10.31 at 137, but was booted off the track. An auto is much more controllable in a turbo car, and it does not fall off boost between shifts. Cheers.
Wow,a 1.4 second difference ! Now thats cutting some E.T.

I know from a pure fun to drive perspective a manual is tops on my list,and I still have it in two of my vehicles. BUT....from a drag racing/performance standpoint a auto is the way to go.I don't think I would even want a manual in my turbo car.Its hairy enough trying to drive it with the auto.

1992 LX coupe-Incon twin turbos
1983 GT Widebody
1988 BroncoII-5.0/AOD transplant

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post #34 of 41 Old 06-06-2009, 03:04 AM
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http://www.youtube.com/watch?v=VjhVbsb_f-U

1965 Cobra replica with twin turbo Dart block 331
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post #35 of 41 Old 06-06-2009, 01:42 PM
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I easily gained 1.19 sec, and about 4 mph (10.68 to 9.49, same boost) going from my old TKO (not shifting or launching very hard since I didn't want it to break) going to my T400, with just a footbrake launch at 2200. This was on a set of 275/40-17 MT DR's though.

89 GT--428 Dart Block 9.1:1, AFR 225's, Edelbrock Super Victor EFI ,Bullet Cams turbo cam, Accufab 90mm TB, TH-400, Ultimate Converter, AEM EMS, twin GT4088's

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