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I have taken everything out of my 93 Mustang to get the weight down as much as I can. I am also wiring the car myself and have taken out the stock wiring harness. I am now left with a LOT of holes in the firewall. I read on another post that the guy working on his car filled all the holes in the firewall.

My question is do I need to fill the holes in my firewall to pass tech inspection? Or did he do this just to smooth out the firewall for looks? When I do get this thing ready for the track I don't want to be suprised when I get to tech inspection. Thanks in advance for your knowledge.
 

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Discussion Starter #3
I would fill them. Easiest way is to cut a slightly larger plate than the hole, and panel bond them on the inside of the firewall. Nice and clean on the outside, and never see it behind the dash.
That is a pretty good idea. I was dreading welding all of them shut with plates. What kind of bonding material. JB Weld perhaps?
 

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Chris... I would be happy to weld those shut for you... and wire it... ;) Then I would have an excuse to come to Indiana and have a talk with someone... ;)

I would weld them closed. It honestly wouldn't be that big of a deal. That is something you can do pretty quickly... or I could... ;)

Also, we could do some cool wiring stuff.... hehehe
 

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Chris... I would be happy to weld those shut for you... and wire it... ;) Then I would have an excuse to come to Indiana and have a talk with someone... ;)

I would weld them closed. It honestly wouldn't be that big of a deal. That is something you can do pretty quickly... or I could... ;)

Also, we could do some cool wiring stuff.... hehehe
I sure wish you were my next door neighbor. You have an excellent attitude!!

I'd love to watch somebody else work on this thing for a change.

OK. I will close them off regardless. But do the rules say that you have to?? I am going to. I just wondered what the rules are.
 

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I would need to bust out the NHRA rule book... but generally speaking it is a rule. Just like you can't mount the regulator to the fire wall... They are trying to keep any chances of fire contained outside the driver's compartment. Actually you might look at putting an onboard fire system on, as it really isn't that expensive as compared to the alternative. Honestly, most tracks don't have great fire/rescue when a national event isn't underway. We could get you something that would work and keep it priced right. Now is a good time to think about it, because you will want a dual nozzle, one that sprays on the back of the engine (mounted on the fire wall) and the other that is on the inside of the firewall pointed at you...

You know your only 475 miles from my shop.... ;)

I have a great body guy and I like to do wiring... ;) HEHEHE... Not to mention we could fab up some sick stuff for gauges... lol!

But as for rules... It is mandatory on some levels, but it is more than a good idea, regardless!
 

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Well just between you and me and the other 10,000 people reading this....

I've been lit on fire before. I know what it is like to look out from inside a fire ball. I thought there were sparks in my eyes but it turned out they were my eye lashes. That day really sucked. I got the scars to prove it. It was the most painful thing that ever happened to me. I wasn't right for 2 months after. I don't mean in the head. I mean I could not get around at all. My legs got the worst of it. I was completely laid up for a while. It sucked. Bad.

How much is a fire supression system anyway??
 

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Chris.... I will definately make you a great deal.... ;) I will email and post some stuff tomorrow.
 

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Chris... I would be happy to weld those shut for you... and wire it... ;) Then I would have an excuse to come to Indiana and have a talk with someone... ;)

I would weld them closed. It honestly wouldn't be that big of a deal. That is something you can do pretty quickly... or I could... ;)

Also, we could do some cool wiring stuff.... hehehe
You really NEED a reason to come to Indiana? Garden spot of the Midwest? Home of Larry Bird? Bastion of all forms of motorsports? Home to Bob and Etta Glidden? Wait a minute....it's the beer talking....I live in Terre Haute....damn
 

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I did mine the lazy way i made a cardboard template of the area big enough to cover all the holes then cut it out of 16ga. (I know overkill but I had a 4x8' sheet laying around) then had my wife hold it in place from inside and I used a sharpie to mark the steel where there were factory bolt holes already the I used bolts and nuts from stripping stuff of it to bolt the plate in and it looks as if it was a factory option to have a heater delete. If you wanted to throw some seam sealer around it to make appear even more factory.
 

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You really NEED a reason to come to Indiana? Garden spot of the Midwest? Home of Larry Bird? Bastion of all forms of motorsports? Home to Bob and Etta Glidden? Wait a minute....it's the beer talking....I live in Terre Haute....damn
There is only one national event trakc for drag racing, Larry Bird doesn't do much for me... and Bob & Etta live in Whiteland, and have been there a few times.... lol! Although it would be fun to go see Etta. That being said... chris is barely in Indianna, closer to Kentucky.... lol
 
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