Speedometer calibration after 4.11 swap

joeaxial · #1 10-03-2005, 07:52 PM

I've got my 4.11 trans and rear differential swapped into my 1992 SVX. Everything works great, but I've found that my speedometer now reads about 10% faster than my actual speed. Has anyone come up with a solution to this problem. I'm not so concerned about the inacurate reading on the speedo, but I don't like the idea of clocking up 1.10 mile on the odometer for every mile I drive! If any of you SVX geniuses has come up with a fix for this, I'd appreciate hearing about it.
Thanks A Lot
Steve

Manarius · #2 10-03-2005, 08:04 PM

Get bigger rims. The speedo on my car is 10% over and I'm running stock 14's on my 4.111 geared Legacy.

Swapping up to larger rims will fix the problem.

oab_au · #3 10-03-2005, 08:49 PM

I believe the fix is to swap out the speed sensor from the SVX box into the 4.11 box.

Harvey.

joeaxial · #4 10-03-2005, 08:52 PM

Quote:

Originally Posted by oab_au

I believe the fix is to swap out the speed sensor from the SVX box into the 4.11 box.

Harvey.

Thanks Harvey, but I did use the SVX speed sensor when I did the swap.
Steve

Beav · #5 10-03-2005, 10:46 PM

We discussed this a while ago. A number of us have come to realize the SVX is usually 4mph slower than the speedo. Kinda goes along with the pessimistic gas gauge.

bwb3 · #6 10-04-2005, 08:41 AM

Pessimistic gas guage. It down right lies. Drove on empty for 20 miles and still had 7 gallons left.

Red SVX 92 · #7 10-04-2005, 10:15 AM

Quote:

Originally Posted by Beav

We discussed this a while ago. A number of us have come to realize the SVX is usually 4mph slower than the speedo. Kinda goes along with the pessimistic gas gauge.

You mean there's no way to calibrate the speedo properly? It would suck to have to run taller tires to offset the gearing change... You'd lose any benefits the shorter gear set would provide in acceleration, etc.