C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Ordered my Keisler---Input please?

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Old Feb 28, 2005 | 05:42 PM
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Default Ordered my Keisler---Input please?

Just ordered my Tremec 500 tranny this morning for $3150 shipped--included the polished hurst shortthrow shifter with polished ball handle, Course it will take 8-10 weeks which stinks. I'm not very familair, but will this tranny give more hp to the wheels? Here are the gears in order
1st-3.27 2nd-1.98 3rd-1.34 4th-1.0 5th-.68
Also I need more input on performance, I have no idea what a stall converter is, but would it be inside the tranny or is it something I can order seperately for more performance? All input welcome....thanks

Last edited by chillcat; Feb 28, 2005 at 05:46 PM.
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Old Feb 28, 2005 | 05:55 PM
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Same one I ordered - mine is supposed to be in this week. I'll take pictures and keep you informed.

I will give more HP to the rear wheel if you were replacing an autotrans - but in your case it simply gives you a beefier more functional unit - capable of taking much more power than the 4+3.

Originally Posted by chillcat
Just ordered my Tremec 500 tranny this morning for $3150 shipped--included the polished hurst shortthrow shifter with polished ball handle, Course it will take 8-10 weeks which stinks. I'm not very familair, but will this tranny give more hp to the wheels? Here are the gears in order
1st-3.27 2nd-1.98 3rd-1.34 4th-1.0 5th-.68
Also I need more input on performance, I have no idea what a stall converter is, but would it be inside the tranny or is it something I can order seperately for more performance? All input welcome....thanks
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Old Feb 28, 2005 | 07:08 PM
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I'm taking it that not a whole lot of people have this tranny....not alot of feedback on it...
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Old Feb 28, 2005 | 08:17 PM
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A lot of people have these trannys - functionally, they are much like the T55 and T56 - but not many have made it into C4 Vettes yet.

I would not worry much. It's a good stout tranny.
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Old Feb 28, 2005 | 11:33 PM
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1st-3.27 2nd-1.98 3rd-1.34 4th-1.0 5th-.68
Seems like a big drop from 1st to 2nd.


Also I need more input on performance, I have no idea what a stall converter is, but would it be inside the tranny or is it something I can order seperately for more performance?
Stick cars do not use a stall converter. They are used only on automatics and act like the clutch when you stop (to prevent auto cars from stalling), among other things.

Nice to see they offer a short throw kit.

That thing should handle whatever you throw at it
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Old Mar 1, 2005 | 07:25 AM
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Originally Posted by RainDelay
Seems like a big drop from 1st to 2nd.

They have different ratios to choose from dont they? I think your first gear will be short, like on a Richmond.
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Old Mar 1, 2005 | 07:45 AM
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is that bad, to have a short 1st gear--should I call the company and change it somehow ? I should be pushing close to 400 hp I believe after the mods are done to engine
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Old Mar 1, 2005 | 08:01 AM
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i think the ratios look fine
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Old Mar 1, 2005 | 08:06 AM
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Originally Posted by chillcat
is that bad, to have a short 1st gear--should I call the company and change it somehow ? I should be pushing close to 400 hp I believe after the mods are done to engine
It depends on how you like to drive, I dont like shifting gears going through an intersection. I know the TKO 600 has a 2.87 1st gear but I dont see the option on this list for the TKO500.

http://www.5speedtransmissions.com/tr-3550.html
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Old Mar 1, 2005 | 08:24 AM
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Yep, it all depends on what you want to accomplish. I have the 2.xx ratio in the Richmond, that and the 2.59 gears are too much. I don’t want to sacrifice the cruising RPM so I can’t go too tall in the dana.

If I would have known ahead of time that the 2.xx first gear was to tall the 3.xx first would have been the perfect setup with the 2.59’s

Not to worry because I believe the switch to a 3.07 diff will correct all this.

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Old Mar 1, 2005 | 08:44 AM
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Originally Posted by chillcat
is that bad, to have a short 1st gear--should I call the company and change it somehow ? I should be pushing close to 400 hp I believe after the mods are done to engine
The low first gear will be fine if you have the typical 2.59 or 3.07 first gear. Its designed to get you out of the hole. The other four gears are fairly close ratio.
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Old Mar 1, 2005 | 09:32 AM
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Originally Posted by chillcat
is that bad, to have a short 1st gear--should I call the company and change it somehow ? I should be pushing close to 400 hp I believe after the mods are done to engine
The Rich. drop is from 3.27 to 2.13.

The ZF6 is 2.68 to 1.8.

It just seems a to be a big gap, I'd hate to see the engine drop too far down the RPM range. My subarban does this and its very frustrating, it goes good and then falls on its face when it shifts into 2nd. Keep in mind, they are the experts and this is my observation. I would call Kiesler and Richmond with your engine specs, (redline, "powerband" and rear gear ratio) and get a specific recommendation. Richmond has a bunch of ratios to choose from, I did not see that on Kiesler's site.
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Old Mar 1, 2005 | 09:43 AM
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My Richmond ratios:

1st Gear = 2.77
2nd Gear = 1.88
3rd Gear = 1.52
4th Gear = 1.19
5th Gear = 1.00
6th Gear = 0.52

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Old Mar 1, 2005 | 09:46 AM
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Originally Posted by cuisinartvette
The low first gear will be fine if you have the typical 2.59 or 3.07 first gear. Its designed to get you out of the hole. The other four gears are fairly close ratio.
I agree with the first gear but I think you instantly lose the effect of a better rear gear as soon as you shift into second. You go back to stock ratios designed for a 5000PM motor.
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Old Mar 1, 2005 | 09:53 AM
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Originally Posted by IBEAM700
My Richmond ratios:

1st Gear = 2.77
2nd Gear = 1.88
3rd Gear = 1.52
4th Gear = 1.19
5th Gear = 1.00
6th Gear = 0.52

Mine are 3.27, 2.13, 1.57, 1.23, and 1.00
I have 3.73 rear which is just ridiculous, going back to 3.07 where it was perfect.
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Old Mar 1, 2005 | 10:05 AM
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Sometimes I find the first to second ratio to close. (For my liking anyway) I shift from first to third and really like that big ratio change. Now I understand for drag racing or road racing it may not be ideal, but to each their own.

Ultimately if I had my choice of any Trans it would be a 4-speed overdrive with ratios something like 3.00, 2.00, 1.00, and .50

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Old Mar 1, 2005 | 10:19 AM
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Originally Posted by RainDelay
I agree with the first gear but I think you instantly lose the effect of a better rear gear as soon as you shift into second. You go back to stock ratios designed for a 5000PM motor.
Same curse as the 1-2 drop of the 700 R
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To Ordered my Keisler---Input please?

Old Mar 1, 2005 | 11:21 AM
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Originally Posted by chillcat
Here are the gears in order
1st-3.27 2nd-1.98 3rd-1.34 4th-1.0 5th-.68
You need to look at your engines dyno curve & rev capability......BUT

1st to 2nd shift.....1.98/3.27=0.6055....If shift at 6000rpm you will drop to 3633rpm

2nd to 3rd shift.....1.34/1.98=0.677...If you shift at 6000rpm you will drop to 4060rpm

3rd to 4th shift......1.00/1.34=0.746.....If you shift at 6000 rpm you will drop to 4477 rpm

4th to 5th shift.....0.68/1.00=0.68.....If you shift at 6000 rpm you will drop to 4080 rpm

My first impression is that this is a pretty screwed up set of ratios.....

Under the above scenerio you would go from 3633rpm to 6000rpm in second....4060rpm to 6000rpm in 3rd.....4477th to 6000rpm in 4th.....and back to 4080 should you shift to 5th...



BTW I need to think about this more....at first I was comparing to my ZF6.....but after thinking a little more.... deeper 1st & 2nd gears is exactly what GM did for the Z06.....

Last edited by LT4BUD; Mar 1, 2005 at 11:41 AM.
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Old Mar 1, 2005 | 05:13 PM
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Hey should I worry about getting a new clutch or performance clutch to go along with this new setup? I have a new master/slave cylinder already, or would I be ok without replacing ?
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Old Mar 1, 2005 | 05:19 PM
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Originally Posted by chillcat
Hey should I worry about getting a new clutch or performance clutch to go along with this new setup? I have a new master/slave cylinder already, or would I be ok without replacing ?
I have had success with my Centerforce Dual Friction. Not a heavy pedal and has held up to 4500rpm launches on 10.5" slicks behind a 400+hp motor. There are better clutches that can handle more but may not be necessary for you.
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