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How To: F4i Gauge in F3 Mount

Old 05-20-2010, 05:33 PM
Junior Member
Thread Starter
Join Date: Apr 2010
Posts: 4
Default How To: F4i Gauge in F3 Mount

I have been looking for a guide on how some people mounted their F4i Gauge in the F3. Here is what I did using the stock F3 Gauge cluster.

Remove the Gauge (7 Screws)

Using a Dremel tool, cut off the portion of the gauge that is raised so you have a nice level surface

Find out where you want to mount the gauge and trace the lines out on where the extra cuts need to be made to make it fit

Cut some cardboard to fill in the gaps. I just cut them tight enough to where I didnt have to use tape to hold them in, but Im sure that would work too. I also put a piece of plastic over the gauges just in case I dripped jelly on it

Cut fiberglass strips that are made to fit the areas where there is cardboard

I used Fiberglass Jelly. Im sure resin would work too, but this is a cleaner approach in my opinion
Apply Jelly-Fiberglass-Jelly In that order to the areas where you have the cardboard

I only used one strip to each section, you could use more if you like.

After it hardens, Sand down the rough spots of extra Jelly and then apply your Bondo. This takes a few coats as you can see here. After each coat. Allow to dry and then sand. I used 80-120-150-400-600. I also used 3 coats of bondo to get it where I was happy

Let this dry overnight, Then tape off your gauge and cut around the gauge to make a clean and even paint area

Primer 3 coats. i used Duplicolor Primer

Trim paint 3 coats. I used Duplicolor Automotive Trim paint

Clear 2 coats. I used Rustoleum for Plastic and Wheel clear

After you are finished allow to cure for 24 hours. Take the tape off and Enjoy.

Mine has minor imperfections and I still have to clean off around the gauge itself. You get the picture though.

Making the bracket will come next. I have not done that yet, but will very soon. Keep checking back for Updates.

Last edited by lky_3; 05-20-2010 at 06:51 PM.
Old 05-24-2010, 01:48 PM
knifemaker87's Avatar
July 2011 ROTM
Join Date: May 2010
Location: Hampton Roads, VA
Posts: 223

sweet! pretty spiffy stuff. I have an F4i gauge in mint condition, but dont need it, so if anybody else wants to do this conversion.. i have one of the digital gauges. let me know
Old 05-25-2010, 01:07 PM
bammerman's Avatar
Senior Member
Join Date: Aug 2009
Location: Denver, CO
Posts: 503

There are tons of people in the F3 forums that would want that.
Old 05-26-2010, 05:44 PM
Junior Member
Thread Starter
Join Date: Apr 2010
Posts: 4

Feel free to tell your friends and post the link. Thanks.
Old 06-26-2011, 06:14 AM
Junior Member
Join Date: Jun 2011
Posts: 12

is there a write up that says how to actually install it?
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