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Topic: Mustang 140mph speedo question..... (Read 1391 times) previous topic - next topic

Mustang 140mph speedo question.....

I bought the '88 Sport a couple of weeks ago,and it has the full gauges.Finding a 140 mph speedo for our cars is hard enough,and when you do,the price is outrageous.I was wondering if a Mustang 140 mph speedo could be adapted fairly easy if I use a Mustang speedo cable as well.What do you all think?Has anyone tried it?I know it may be shaped a little different on the outer edge of the gauge,but perhaps it could be trimmed a little.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Mustang 140mph speedo question.....

Reply #1 –
I had an 85 Turbo Coupe, converted to a 302, that I put a Mustang 140mph speedo and cable in. I remember having to cut out and reseal part of the ductwork behind speedo for the cable. Other than a little tpuppies around the Mustang gauge, it was simple. I wasn't real good at taking pictures back then, but I know somebody here or at NATO has some.
Jim

Mustang 140mph speedo question.....

Reply #2 –
I think I'll get a Mustang gauge and try it out.They're all over E-Bay.As a matter of fact,I've seen a couple of 160mph Mustang police car gauges.Callibrated.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Mustang 140mph speedo question.....

Reply #3 –
You could just convert the 85MPH speedo to a 140MPH one.
http://www.foxthundercats.com/140speedoarchive/
2000 Jaguar XK8 Convertible - 4.0L DOHC V8 (AJ27)
2018 Ford Explorer - 3.5L DOHC V6 (Duratec 35)
1999 Mercury Grand Marquis - 4.6L SOHC V8 (Modular)
1987 Mercury Cougar LS - 5.0L V8 (Windsor) [SOLD in 2009]

Mustang 140mph speedo question.....

Reply #4 –
Thanks for the link.I'm thinking that looks harder to me than adapting a mustang unit.I'm mechanically inclined,but not electronically inclined.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Mustang 140mph speedo question.....

Reply #5 –
Or send it to JeffK and let him do it.

Mustang 140mph speedo question.....

Reply #6 –
How much does he charge to do one?

Mustang 140mph speedo question.....

Reply #7 –
I had mine done over a year ago and really can't remember how much. I know it was much less than buying a 140 speedo. I am not sure if he is still doing them.
Jim

Mustang 140mph speedo question.....

Reply #8 –
Who is Jeffk and how do i contact him?Thanks.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..
 

Mustang 140mph speedo question.....

Reply #9 –
+2 for interest in how to get in contact with JeffK...
I'd rather pay someone to do it, than to hassle with it myself.
'98 Explorer 5.0
'20 Malibu (I know, Chevy, but, 35MPG. Let's go brandon, eh)