Quote:
Originally Posted by Matt Monson
Hello,
Based on what I see in the initial post, I have a sneaking suspicion that confusion around how 915 gears are traditionally listed versus how G50 gears get listed have led to a misunderstanding with respect to exactly what gears the shop is offering.
When I chart it, there just doesn't seem much point in installing the 4th gear they seem to be suggesting ( QP 26:25 0.96). This is the gear that Bill has charted.
A far more likely option is that they have a PQ 25:26 1.04 4th that they are trying to plug in there. That's a bit tighter on the 3-4 shift as well as offering a reasonable RPM drop on 5th that makes their suggested 5th quite useful in pulling hard up from roughly 110-130mph.
I suggest you go back to your builder and ask him specifically the letter designation of the gear to clarify what you are getting. If it's a QP, I wouldn't bother. If it's a PQ, they are steering you in the right direction and it's a good option for 4th regardless of whether you go with their suggested 5th or something a bit taller to preserve some highway cruising ability.
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---Understood more-or-less. This is all new to me as is the nomenclature and/or numbering.
I'm not sure which number should be the numerator and which the denominator.
That said, Assume I have an 11/35 first then the shop is recommending the 25/26 4th not the other way around.
Bill, Does this look "less ugly"?
Thanks again