Gearing vs. 60' times
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Gearing vs. 60' times Looking over George's A2 results, it seems like he didn't lose much 60' going from an A3 to an A2. That's like the difference between 4.10s and 2.95s if I did my math right. How is that possible? Perhaps with a torque converter and a decent size engine the gear doesn't matter much?
I'm thinking about things I want to change on my car right now and trying to figure this gearing stuff out. One crazy option I'm looking at is going from my current 4L60E/4.10 combo to a TH350/3.23 combo. That would be like switching from 4.10s to 2.73s.. =/ I've got a lot of torque, a light car, and a big stall. Maybe I'd still be able to cut mid 1.4 60' times?
I'm thinking about things I want to change on my car right now and trying to figure this gearing stuff out. One crazy option I'm looking at is going from my current 4L60E/4.10 combo to a TH350/3.23 combo. That would be like switching from 4.10s to 2.73s.. =/ I've got a lot of torque, a light car, and a big stall. Maybe I'd still be able to cut mid 1.4 60' times?
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From: PURDUE
Re: Gearing vs. 60' times Correct me if i'm wrong, but I thought he didn't pull a good 60foot with his A3 'cause he couldn't get it to hook with that much power/gear. With the A2 (and less gearing) traction wasn't a problem.
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From: Troy, AL
Re: Gearing vs. 60' times Not only the traction issue but keep in mind that with a 4L60-E and 4.10s you're shifting into 2nd before the 60 ft mark which slows your 60 ft time down a bit. With a powerglide you don't have the slowdown from the shift before the 60 ft but you also don't have that great gearing advantage of going to a 1.62 ratio instead of a 1.00 ratio.
Basically I'm saying that the gearing disadvantage of the powerglide might be better seen in the '330.
Basically I'm saying that the gearing disadvantage of the powerglide might be better seen in the '330.
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From: Auburn, AL
Re: Gearing vs. 60' times lol, once again, Terry Burger going back on what he preached for so long. First it was weight reduction and gutting the car, now its going fully ghetto style with a non-overdrive tranny. I knew this day would come <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Before you say something about it, I realize that you are just thinking about it and haven't done it yet. But just that you are thinking about doing it...
<small>[ September 17, 2002, 05:54 PM: Message edited by: quickWS6 ]</small>
Before you say something about it, I realize that you are just thinking about it and haven't done it yet. But just that you are thinking about doing it...
<small>[ September 17, 2002, 05:54 PM: Message edited by: quickWS6 ]</small>
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Re: Gearing vs. 60' times I argue on here for fun. Like I said before if I put a 3spd in my car I'll be the first to admit how ghetto it is. I looked over the numbers and noticed a TH350/3.23s isn't any worse than my current 4l60e/4.10s, so it's just an idea. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> My main question is what will happen to my 60'? I'm able to cut low 1.4s now.
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Re: Gearing vs. 60' times Should be an interesting experiment. dont forget you wont have lockup.
If you get one be sure to get one with a brake <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Cheers,
Chris
If you get one be sure to get one with a brake <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Cheers,
Chris
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From: Melbourne, FL
Re: Gearing vs. 60' times When I switched to the 'glide and got a few bugs worked out, I picked up everywhere except the 60'. That's with the 8" JW converter...
I had some 1.37 60' times with the 10" JW converter and the glide before that converter broke.
The 8" converter in the car now is considered a "soft hit" converter, and is really easy on the tires at the launch. That's why my 60's are only in the 1.44 range now.
I never thought the 2-speed would work as well as it is either, given the overall 1st gear ratio. But, it does work, I'm happy with it, and I'm leaving it alone. The car will now hook in what seems like any condition with the soft hit converter, and still runs big downtrack numbers. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
I had some 1.37 60' times with the 10" JW converter and the glide before that converter broke.
The 8" converter in the car now is considered a "soft hit" converter, and is really easy on the tires at the launch. That's why my 60's are only in the 1.44 range now.
I never thought the 2-speed would work as well as it is either, given the overall 1st gear ratio. But, it does work, I'm happy with it, and I'm leaving it alone. The car will now hook in what seems like any condition with the soft hit converter, and still runs big downtrack numbers. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
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Re: Gearing vs. 60' times Big POW WAH + proper stall lessens the need for a high numerical 1st gear..... Optimize the stall for launch and final gear for finish line rpm vs mph in the run.
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