Cory70- I found this over at the pro-touring forum. I hope the Keisler guys don't mind but I'm just cutting and pasting a response they posted over there. This was the info I was looking for, a bit more detailed than on their web-site. I took it out of the thread linked below. Take a look as a couple guys review the RS in it as well. I really think that this is the way I'm gonna go. The RS600 seems like a pretty good match for what I'm looking for. Not to mention a great price quote. Much friendlier than the TKO on the wallet.
I'd still like to know if anyone here is running one and what they think. Anyway,here's the info I found.
Originally posted by Keisler:
Hi Guys and Gals,
We will be launching the new Keisler RS PerfectFit 5-Speed officially next month. We debuted it at the Chicago Muscle Car and Corvette Nationals last weekend. Here is some info about it, compared with our previous offerings. As this product will prove itself in the months and years to come, it is a major advancement in the market, and is Keisler's new flagship product.
DESCRIPTION ... KEISLER Rallye Sport "RS" 5-speed
The evolution of the Keisler T45RS line started back in 2007, the Keisler RS 5-Speed product line takes our overdrive transmission systems to a higher level of quality, value and performance.
1) A Perfect Fit
Thanks to an all new feature rich extension housing case and a heavily revised shift system, we are able to package the RS as a PerfectFit for a no cutting, no compromise fit in most popular muscle cars and classic sports cars. PerfectFit with the RS is standard - not an upcharge (like our tremec tko perfectfit kits). More than 15 shifter handle mounting positions exist for all popular domestic cars, sport trucks and kit cars.
> GM A-body NO CUTTING - For the first time ever, owners of Chevelle, GTO, Skylark, 442 will be able to install a 5-Speed with NO CUTTING to the tunnel ... a major improvement over our tko perfectfit kits. The RS provides uncompromised driveline angle and assures your engine won't be tilted back with exhaust headers pointing down to the ground, and you won't have driveshaft vibration - typical problems found when a tko is installed.
> GM F-body NO CUTTING - owners of Camaro and Firebirds will no longer have to notch the shifter hole and use a compromised boot sealing arrangement (req'd by tko).
> Corvette NO CUTTING - the main advantage of RS for Corvette owners is that there is no compromise of the driveline angle, and there is MUCH more clearance between the transmission and floor tunnel.
> GM B-body, NO CUTTING - For the first time ever, owners of Bel Air, Impala, Biscayne and other apps will be able to install a 5-Speed without the major tunnel surgery typical of the tko.
> GM X-body and other apps like Cobra kit car having a shallow tunnel will greatly benefit by the RS PerfectFit design, allowing installation with little (gen 1) to no mod (gen 2) to the floor tunnel, while keeping perfect shifter position. Again, these
2) Unsurpassed Shift Quality, High RPM Shifts, NO 2-3 Misssed Shifts
Thanks to the Borg Warner designed carbon fiber lined Blocker Rings in all gears, and Double Friction Cone system in 1st and 2nd gears, the RS features the best shift quality of any aftermarket manual transmission (including tremec tko, 3550, 3650, t5, t56, Richmond). At Keisler, we redesigned the shift systems of reverse, added bearing support under the shift forks and other portions of the single rail system. While the BW T45 was designed several years after BW T56, and shares it's synchro system design, the shift quality is even better than T56 because the shifter rail/fork/interlock system has less mass and fewer joints. The result is a very nimble shifter feel. Additionally, the advanced carbon lined synchro system has a much higher coefficient of friction than paper lined blockers, or just plain brass blockers (like TKO). The result is far less shift effort at the handle. The shift quality right out of the box is clean and smooth with no break-in, and a world of difference better than the best highly modified, proshifted TKO; withouth the big price adder.
The Keisler RS cleanly shifts at 7000rpm - more than 1000rpm higher than TKO's 6000rpm cutoff.
The RS has a guide plate shifter system unique to any manual 5-speed on the market. This guide plate mechanism cleanly guides the shifter in/out of gates 1-5 & R. A 2-3 miss shift so common to TKO - as many of you already know - is nearly impossible with the RS. I haven't been able to miss a 2-3 shift with the RS.
4) Close Ratio & Standard Ratio Gearsets
Standard Ratio Gearset - 3.37, 1.99, 1.34, 1.0, .67 (1.38 step change in 1st, 33% RPM drop in overdrive)
RS400 (400 torque): 1-1/16 x 10 spline input shaft, SAE 8620 nickel-moly steel alloy
RS500 (500 torque): 1-1/8 x 26 spline input shaft, SAE 9310 chrome-nickel-moly high strength steel alloy, CNC ground gears
Close Ratio Gearset (new)- 2.80, 1.99, 1.34, 1.0, .67 (.81 step change in 1st, 33% drop in overdrive)
RS600 (600 torque): 1-1/8 x 26 spline input shaft, SAE 9310 chrome-nickel-moly high strength steel alloy, CNC ground gears
3) Lower Cost and Better Value than previous offerings
Keisler Engineering created the business of retrofitting Tremecs and have sold more than 13,000 of those units since 1999.
The Keisler RS 5-Speed now sets the new benchmark of the flagship overdrive transmission system. And, we've managed to do it for hundreds of dollars less than the tko. And we're going here in the USA - gears, cases, shifter components