410 gears speedometer difference? - ZR-1 Net Registry Forums

DaveK · 03-23-2007

Hi everyone

My brains should be up to this but I can't seem to figure it out. What's the percentage difference on the speedo if I have 4.10 gears instead of stock?

Just got her registered - she's all mine! Got a break in the weather too - first cruise this evening

BUT don't know what speed I'm doing and don't want my first trip to end up with a run in with the boys in blue.

Dave

guinnessdood · 03-23-2007

Sounds like you need to get some speedo correction gears or the BOX...SOON!!! Hope you have a good radar detector too! Do you really think knowing your speed will keep you "goin slow"? It won't! Let 'er rip!

This website will help you with your speed calculation...http://pw1.netcom.com/~sgalaba/mph.htm

DaveK · 03-23-2007

Quote:

Originally Posted by guinnessdood

Sounds like you need to get some speedo correction gears or the BOX...SOON!!! Hope you have a good radar detector too! Do you really think knowing your speed will keep you "goin slow"? It won't! Let 'er rip!

This website will help you with your speed calculation...http://pw1.netcom.com/~sgalaba/mph.htm

Thanks. The correction box is ordered but I can't wait that long

I tried the link but it didn't seem to give any results when I clicked - maybe I'm just missing it.

I figure it must be around -15% with the 4.10s

It won't kep me going slow, but it might at least stop me from doing it right under their noses

p.s. radar detectors are illegal in Ontario. Seems kind of dumb to ban a device that warns you to keep your speed down.

Aurora40 · 03-23-2007

Doing the math, at an indicated 60mph on the speedo, you'd actually be going 50.5 mph. To actually go 60mph, you'd want to see 71mph on the speedo.

jonszr1 · 03-23-2007

or with stk rear tires 315/35/17 2000rpm =72mph

DaveK · 03-23-2007

So I wasn't too far out with 15%. Thanks guys, you really are the best.

Just got back from my first cruise, still very much in 'familiarisation mode' but damn, I'm definitely grinning!!!

Looks like the weather is set to be good all weekend too! Whooohoooo!

03-23-2007	#1
DaveK Join Date: Jul 2004 Location: Sudbury, Ontario. Canada Posts: 1,537	410 gears speedometer difference? Hi everyone My brains should be up to this but I can't seem to figure it out. What's the percentage difference on the speedo if I have 4.10 gears instead of stock? Just got her registered - she's all mine! Got a break in the weather too - first cruise this evening BUT don't know what speed I'm doing and don't want my first trip to end up with a run in with the boys in blue. Dave __________________ 1991 #1516 Black/Black davidmkelly.com Author of fast-paced, sci-fi thrillers.

03-23-2007	#2
guinnessdood Join Date: Oct 2004 Location: Woods Cross, UT Posts: 389	Re: 410 gears speedometer difference? Sounds like you need to get some speedo correction gears or the BOX...SOON!!! Hope you have a good radar detector too! Do you really think knowing your speed will keep you "goin slow"? It won't! Let 'er rip! This website will help you with your speed calculation...http://pw1.netcom.com/~sgalaba/mph.htm

03-23-2007	#4
Aurora40 Join Date: May 2005 Location: Leesburg, VA Posts: 2,704	Re: 410 gears speedometer difference? Doing the math, at an indicated 60mph on the speedo, you'd actually be going 50.5 mph. To actually go 60mph, you'd want to see 71mph on the speedo.

03-23-2007	#5
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,406	Re: 410 gears speedometer difference? or with stk rear tires 315/35/17 2000rpm =72mph

03-23-2007	#6
DaveK Join Date: Jul 2004 Location: Sudbury, Ontario. Canada Posts: 1,537	Re: 410 gears speedometer difference? So I wasn't too far out with 15%. Thanks guys, you really are the best. Just got back from my first cruise, still very much in 'familiarisation mode' but damn, I'm definitely grinning!!! Looks like the weather is set to be good all weekend too! Whooohoooo! __________________ 1991 #1516 Black/Black davidmkelly.com Author of fast-paced, sci-fi thrillers.