Consolidating Classes

[Owen S Quirion]

Originally Posted by GarysZ24

Owen, I'm running a 3.73 (4cyl J car) planetary in my car now...it's been so long since I changed it over from the factory 2.7-2.9 6cyl factory planetary the car came oem with...would my current gearing be too much? As for that set you have, I'll keep that in mind, but I'll also have what Mark spoke of in mind too (especially if it's cheaper)? Right now I'm dealing with some other looming possibilities for 2011, and my funds are focused on that. Furthermore, my car and I are over 900 miles apart, and it's getting snowed on...however I'd prefer that to being outside in the summer-time temps and wind/dust storms we had the previous 2mths.! Thank you, and you too Mark, for some options that will get me those highly appreciated 4tenths I will greatly appreciate the next time I race at a humid track like Topeka!!!

Gary, The 3.73 ratio in your transaxle is accomplished using a 3.33 planetary final drive differential unit and a set of 33/37 drive chain sprockets. Both combine for an effective ratio of 3.73, the best ratio available using factory parts. So you will be fine with that diff. I currently have a set of 33/41 sprockets for a ratio of 4.14 and will be moving to a 29/41 set next year for the 4.47's. That is the limit of the available room inside for the 41 tooth driven sprocket. Like I said, next year I will be testing to make sure that the input shaft of the transaxle can handle the increased torque input before I sell anyone a set.

[GarysZ24]

Originally Posted by Owen S Quirion

Gary, The 3.73 ratio in your transaxle is accomplished using a 3.33 planetary final drive differential unit and a set of 33/37 drive chain sprockets. Both combine for an effective ratio of 3.73, the best ratio available using factory parts. So you will be fine with that diff. I currently have a set of 33/41 sprockets for a ratio of 4.14 and will be moving to a 29/41 set next year for the 4.47's. That is the limit of the available room inside for the 41 tooth driven sprocket. Like I said, next year I will be testing to make sure that the input shaft of the transaxle can handle the increased torque input before I sell anyone a set.

Good Luck with that Owen, and keep me posted please. Since we don't have the aftermarket support that the rwd's have, anything someone like you (and Mark, etc.) with more mechanical savy than I have (which probably is a bunch), will be greatly appreciated! Sometimes I wonder why I'm racing a car in the fuel injection era, when my level of mechanical knowledge/training was circa 1979.

It sure was easier to take 2sec.'s off of my '76 Vega that I raced 31yrs ago, than it was this car. I had a chance to buy it back, but since my original engine & tranny were swapped out for a Pontiac motor & a 4spd, I would've had to hunt for the originals and I felt that in the early 90's that would've been tuff to do hence this car. However, I still like the challenge out there to try and do something no-one has done this century, or since Mark Yaccavone's national event win, and the guy who won the one and only fwd stocker divisional race as well, which is why I'm glad I have this car. Furthermore, unless Billy Nees did it when he raced a fwd car (or Art, Mark, Linda, or Steve), I'm not sure if any fwd stockers ever finished in a divisional (much less national) Top Ten in Stock Eliminator points standings? Those quests are still out there waiting for those of us who take the road less traveled with regards to our racing vehicles, and I'm game for the challenge (the primary reason I chose this car)!!!