just had to share that, Speedhut Revolution 4" tach, Autometer ES series water temp and oil pressure and a Split Second AFR.

 

Pretty nice!
Did you have to modify/dremel the gauge cluster much?
Are those Autometer gauges 40mm?

 

can we get a shot behind the cluster?

 

the tach is only 1.1" deep so I didnt have to modify the back side of the cluster for it aside from making a hole for the wires to go through, but I did have to open up the hole in the original black bezel with a dremel but not by much... it was really close to being an exact fit. The Autometer gauges however are a little deeper and required some heavy modification to the back side of the cluster housing (since both are mechanical) and they're 2 1/16" which I guess would be 52mm...

 

oh the back side is not exactly a work of art..... good thing nobody will ever see it! ... I might take a pic of it later... The white harness that supplies the oem oil and temp signal is no longer used but since it also supplies the ground, I spliced the original harness and manually attached the ground to the oem fuel gauge so it'll still work.. along with the light.

 

the screw thats missing from the back of the fuel gauge is where the ground attaches.



the sqaure where the tach wires come out seemed to not serve any purpose...

 

Very Slick!!! I love the 6 o'clock tach.

 

man I gotta plug Speedhut here, the price was great (about $190 shipped) and they have a ton of options (I passed most of them up) and its about as close to a '99 spec tach that I could find without being the real deal. Built in programmable sequential shift light is pretty tight as well...

http://www.speedhut.com/

 

this one right?

http://www.speedhut.com/custom_gauge...number-608.htm

 

You're running a mechnical oil gauge into the passenger compartment? Why?

Otherwise looks nice.

 

yup.

 

because I can.

 

with the lights on...

 

Not a great answer. Isolators cost, what, $50?

 

idk if its smart running a mechanical guage inside the cockpit....think of the nasty nasty mess that would leave if you sprung a leak for whatever reason.....not worth it

 

well out of the nine previous rx-7's I've owned 6 of them I equipped with mech oil pressure gauges, the only failure I ever had was in a 1st gen with a bridgeported 12a where I used the dinky plastic line supplied with the gauge, and it was because I overtightened the compression fitting on the back of the gauge which caused the ferrule to slightly split the line, over a two hour drive it spit one drop of oil on my pant leg. Since then I only use braided line and AN fittings and have had no more failures. If one was really paranoid you could use a firewall isolator, but I have much faith in my work.

I'm not trying to say that is for everyone, but I've had my trial and errors and I use what works for me. I'm sure over my history of 7 ownership (12 years and counting) I've done plenty of modifications that many would scoff at but were successful and reliable in operation.

Now I'm going back out to my shed to finish my single turbo conversion that I'm fabricating out of mud and sticks!

 

I also have a mechanical oil pressure gauge in my cabin. Can someone elaborate on this isolator?

 

http://www.pegasusautoracing.com/pro...asp?RecID=3011

...not quite 50 bucks but an isolator nontheless

 

i had a mechanical gauge in my car, the line exploaded and dumped 2 quarts of oil in the 3-5 seconds the car was on before i shut it off.

 

braided line or the dinky plastic one?

 

glad you posted this...my tach just started acting crazy on the way to chris' memorial meet.

bounces all over the place even at constant RPM.

looks like this might be my next project!