where to get gsl-se speedo gear
#2
call any transmission shop for the actual part, they always have ample speedo gears on hand, they might even tell you what you need, as in the # of teeth and size. or someone else on here!
#7
the SE one won't do you any good unless you swap to the larger SE wheels. Stock vs Stock drivetrain in 4th gear at 8k rpm difference is only 3 mph. now if you go to the larger wheels then sure it'll work but that kinda defeats the points of going with the 4.07 b/c you have effectively lowered it back down again with the larger tires.
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#8
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well, i did a search on the differences in tire speeds, and it look like the difference in tire sizes (185/70-13 stock to 205/60-14 gsl-se) will cause my speedo to be 2.1% too slow. now the gearset will increse the amt that it is slow, so wouldn't it make more sense to try to make it a little closer with the proper speedo gear, even if it isn't perfect?
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2.1 is jsut the difference in tire size between the two, the higher rear gear will increase that. thats why i'm thinking of getting the correct speedo gear so i am in that 2.1 margin.
#12
see my post, it takes into consideration the rear diff ratio. unless your planning on doing 130+ it will be off by less than 3mph. To get my numbers I took 4th gear (1:1 ratio) and plugged in wheel size 185/70r13 with 3.90 rear end. the program then spit out MPH per rpm. I then plugged in 205/60 r14 with a 4.07 rear end. The difference between two plots in 4th gear was 3 mph@8k
By your logic the 14" wheel is 2.1% larger. the ring and pinion of the SE takes 4.1 % more rotation than the stock 3.909 rear. so -2.1+4.1= 2 So grand total of two percent. Your speedo will read 2% too fast, given stock tire size
By your logic the 14" wheel is 2.1% larger. the ring and pinion of the SE takes 4.1 % more rotation than the stock 3.909 rear. so -2.1+4.1= 2 So grand total of two percent. Your speedo will read 2% too fast, given stock tire size
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