xcarguy

Tom, Those are 'perfect world' numbers; no tire spin, .5 sec shifts, no drag increase with speed and Joe Cool :cooldude: driving the car . . . . . . How about just one plug wire next year? :jester:

This is exactly the reason I had Liberty Gears build me a TKO600 with face plated 2nd, 3rd and 4th gears as well as add a few other internal mods . . . completely different anumal from a stock TKO600 with zero shift issues during high (above 6000 rpm) rpm shifts . If you are usign your car primarily for the street, then the six speed makes the most since. For primary track use, the 'modified' TKO600 is a very good lighter, smaller choice. But heeds Gale's advise; a 'stock' TKO600 isn't the best track-worthy choice for a tranny . . . it definitely needs the mods.

subtle, You're right; any of these cars fitted with an LS engine is a challenge when it comes to transferring power to the ground. This was the main reason the 3.45 gears came out my car and the 3.23 gears went in; power is useless if you can’t use it (speaking for myself here). While the difference in first gear is moot (still, no traction to speak of) the difference on the open road, and the track, is very noticeable. You nailed it down when you said, "Basically if you can save yourself a shift on your favorite track, you are getting the most out of it." I've ran four different tire sizes on track over the course of the last year and a half, and there is a very noticeable difference regarding when and where you need to shift and also in how much speed you can carry on a straight with one tire vs. another. If you run two different tire sizes back-to-back during the same event, the difference is simply eye-opening. FWIW, when I did the head/cam mods to the LS6, I started playing with various tire sizes (the 15” Avon slicks vs. the 16” Avon slicks) and different gear ratios (3.45 vs. 3.23) using a performance calculator app (Bench Racer) and what the numbers revealed was nothing short of amazing (at least, it was for me). I used 1/8, 1/4, 1/2 and 1 mile criteria. My car, when compared to itself but with different sized tires and different gearing, actually ran ‘mathematically’ quicker in certain areas (because of the power-to-weight) with the larger diameter tires and ‘numerically’ lower gearing. Here are a few snap shots for the sake of quick comparison. The most noticeable differences are in the comparison between the 15” tires with 3.45 gearing vs. the 16” tires with 3.23 gearing (chart labeled 15” 3.45 16” 3.23):

Mike, When my car had the SC V6, it had 3.45 gears. Once the LS6 went in, the 3.45 gears were replaced with 3.23 gears not long after.

subtle, You'll end up being very happy with the 3.23 gearing

This was loaded onto the Storker (Stalker :jester:) forum as a doc file. It's an older article, but worth a look at/revisit. I couldn't figure out a way to load this as a doc, so here it is photos. Hopefully the resolution is good enough to enlarge and read. :cheers:

Too tame for a Seveneer. :jester:

I wonder . . . . with the 2.73 (and enough motor) if the lack of aero could be overcome long enough to see 200 mph . . . . . :rofl:

Okay, here’s sum more meat n’ taters :jester: I’m running a Tremec TKO 600 geared as follows: 1st: 2.87 2nd: 1 .89 3rd: 1.28 4th: 1.00 5th: .82 My LSD gearing is 3.23. I’ll use two different tire sizes for examples; the smaller Avon slicks I used to run prior to stepping up to the larger Avon’s that I now run, and the Nitto NT01’s I currently run on the street. Theoretical top end speeds are assumed using 6500 rpm and a nil drag coefficient. Speed = RPM x Tire Circumference x 60 / (Differential Ratio x Transmission Final Drive Ratio x 12 x 5280) Max Engine RPM: 6,500 Tire Circumference: 67.08 (Avon crossply slick: 10.7/21.5-15 with 21.85” OD) Differential Ratio: 3.23:1 Transmission Final Drive Ratio: .82 6500 x 68.172 = 443,118 443,118 x 60 = 26,587,080 3.23 x .82 = 2.6486 2.6486 x 12 = 31.7832 31.7832 x 5,280 = 167,815.296 26,587,080 / 167,814.296 = 158.43mph Speed = RPM x Tire Circumference x 60 / (Differential Ratio x Transmission Final Drive Ratio x 12 x 5280) Max Engine RPM: 6,500 Tire Circumference: 77.7504 (Nitto tire: NT01 255/40ZR17 with 24.92”’OD) Differential Ratio: 3.23:1 Transmission Final Drive Ratio: .82 6500 x 77.7504 = 505,377.6 505,377.6 x 60 = 30,322,656 3.23 x .82 = 2.6486 2.6486 x 12 = 31.7832 31.7832 x 5,280 = 167,815.296 30,322,656 / 167,814.296 = 180.69mph Using the 3.23 gear ratio, 6500 rpm and the Nitto NT01’s from the above example, max theoretical speed for each transmission gear (sans overdrive, as discussed above) would be as follows: 1st: 2.87 51.97 mph 2nd: 1 .89 78.91 mph 3rd: 1.28 116.52 mph 4th: 1.00 149.14 mph . . . . . . . . :svengo:

. . . . . . . . . :hurray:

Good to see someone else getting their finger pulled for a change . . . Oops! I probably should have left that alone.

Well . . . . . seems another has fallen through the crack . . . . . . :spam::devil:

. . . . . . . . :jester:

Mo betta! Nicely done Cat. :cheers:

Cranky, If Croc's advise doesn't work, can you post a detailed (up close, with good pixel resolution) photo or two of the quick release mechanism (internal, if possible) and of the splines of the steering column? . . . . . . :smash:

I remember #85's unpacking ceremony very well: http://www471.pair.com/stalkerv/gallery2/main.php?g2_itemId=6225

Spoiler alert!!!! :smilielol5:

Yep, if you want to keep engine oiled good and proper, hit the track in the rain with some really slick tires. :jester:

Just had to throw this in . . . . . :jester:

Ross, You may want to add a link for the eBay listing.

Fantastic ! ! ! ! . . . . . :cheers:

. . . . . . :leaving:

Just got on the 'build it for me' list with Aerodynamix; opting for one of their Double Buble Aero Screens for the Storker. Now, if I can only locate a cammo driving suit . . . . :jester:

Jim, Congradulations on your purchase and your first drive. As for a dead pedal, here are a couple of threads that may be helpful: http://www.usa7s.net/vb/showthread.php?t=9706&highlight=dead+pedal http://www.usa7s.net/vb/showthread.php?t=9014&highlight=dead+pedal As for the NJMP guys, you definitley need to hook up with those fellas; lots of fun to hang out with, both on and off track. :cheers:

If you put enough of them together . . . . . . .