rear end changed gearing ratio?

turbonicsperformance · 06-06-2010, 02:20 PM

yeah my speedo is a constant 2mph fast according to a cop friend with radar equipment and it'll be on the dyno this week to make sure i dont think anything has been changed since its a constant 2mph and thats about right for my tire size idk maybe the track reads fast though my speedo was right with the track everytime i looked and it was really consistent and i know how all that works ive had to adjust speedos and what not before and ive had the tach hooked up and it reads right with my tach dwell not a bit off idk but like i said before its not that important it just seemed strange to me to go over the table speed with smaller tires

cre · 06-06-2010, 04:34 PM

If the speedo's only a constant 2MPH off then your tach's screwy or your igniter is... Roll the car slowly across a measured one mile segment of road and see if the odometer is reading accurately. If it's right on the mark just more the speedo needle to set everything right.

And if your speedo is 2 MPH off at 10MPH and still only 2MPH off at 100MPH feel lucky, the speedo was blessed by god himself.

turbonicsperformance · 06-07-2010, 03:44 AM

Quote:

Originally Posted by cre

If the speedo's only a constant 2MPH off then your tach's screwy or your igniter is... Roll the car slowly across a measured one mile segment of road and see if the odometer is reading accurately. If it's right on the mark just more the speedo needle to set everything right.

And if your speedo is 2 MPH off at 10MPH and still only 2MPH off at 100MPH feel lucky, the speedo was blessed by god himself.

its 2 mph off at 20 30 40 50 but he is still a cop and wouldnt let me speed so i couldnt test any faster and what did you mean by "more the speedo needle" im sure its just a typo but i cant think of what you might be trying to say

cre · 06-07-2010, 04:09 AM

Meant to say, "move". Pull the needle off, and put it back on so it'll show correctly.

Ranma · 08-23-2010, 06:34 PM

cre, the policemen in Oklahoma are anal retentive. Got pulled over for doing 79 in the 75 mph of the Will Rogers. Probably next time I will get a regular ticket instead of the warning.
Can it be fixed, is removing and replacing best? I hate the ideal of having after market stuff blocking my view.

06-06-2010, 02:20 PM	#1
turbonicsperformance 3" Exhaust Join Date: Apr 2010 Location: sarasota fl Posts: 194	yeah my speedo is a constant 2mph fast according to a cop friend with radar equipment and it'll be on the dyno this week to make sure i dont think anything has been changed since its a constant 2mph and thats about right for my tire size idk maybe the track reads fast though my speedo was right with the track everytime i looked and it was really consistent and i know how all that works ive had to adjust speedos and what not before and ive had the tach hooked up and it reads right with my tach dwell not a bit off idk but like i said before its not that important it just seemed strange to me to go over the table speed with smaller tires __________________ 92 miata 7mgte swap forged pistons,studded mhg, 3 inch dp with a glass pack,blowthrough MAF-T,550cc inj, act stage 2 clutch, fmic kit, greddy rs, full wire tuck, rx7 lsd rear with 4.10s. 15psi "ct26-A"??(waiting on dyno #s) if anyone knows whats up with my turbo let me know it has a larger comp wheel nicer machining and 6 dual fins rather than 5? its confusing and keep finding too much contradicting info. would LLLLLOOOOOOOOVVVVVVVEEEEE a compressor map

06-06-2010, 04:34 PM	#2
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	If the speedo's only a constant 2MPH off then your tach's screwy or your igniter is... Roll the car slowly across a measured one mile segment of road and see if the odometer is reading accurately. If it's right on the mark just more the speedo needle to set everything right. And if your speedo is 2 MPH off at 10MPH and still only 2MPH off at 100MPH feel lucky, the speedo was blessed by god himself. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

06-07-2010, 04:09 AM	#4
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Meant to say, "move". Pull the needle off, and put it back on so it'll show correctly. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

08-23-2010, 06:34 PM	#5
Ranma 12psi boost Join Date: Jun 2010 Location: Claremore, OK Posts: 326 Blog Entries: 10	cre, the policemen in Oklahoma are anal retentive. Got pulled over for doing 79 in the 75 mph of the Will Rogers. Probably next time I will get a regular ticket instead of the warning. Can it be fixed, is removing and replacing best? I hate the ideal of having after market stuff blocking my view. __________________ 1986 Mk III MA70 7MGE Targa Top 5 Speed Stock Exhaust

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