Join Date: Jun 2010
Location: Ontario, Canada
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I know with an automatic - 13-16% loss
Stick is less of a % loss
Rear diff. be interesting to know the % loss difference, if any, between a solid axle vs IRS
for instance, i know the ford 9" is a power eater, compared to the 8.8" almost a 6% difference
I have a Gear Vendor O/D on my trans, briefly, the GV unit allows you to "split" each gear, i.e. -1st-1st over, 2nd-2nd over & so on.
So, a 3 speed becomes a 6 speed ,a 4 speed becomes an 8 speed!
When shifting you only loose approx. 200-300 rpm on each shift, so your engine is always in its sweet power band.
Gear Vendors states the unit is so efficent you only loose 1% for every 400hp!