Trunk panel rules?

R

RSI

New member
The rules state that a panel has to be made to separate the cabin from the "trunk."

The intent I believe is to create a barrier betwixt the driver and any fuel. We have been building a Volvo 850 sedan as well as a wagon, and I was told that for the wagon we would just need to create a "box" around the fuel cell where it sits in the cabin.

However in the sedan right now it is running the stock fuel system and no fuel is even routed through the trunk or cabin, no filler neck, no hose, our other cars have filler necks and the such, but this car is ALL external.

We are under a deadline and the rear firewall panel would be quite extensive...is it needed on a car that has NO fuel routing or pumping or ANYTHING in the cabin or "trunk/hatch" areas?

Thanks in advance.
Jonathan
 
I'm not looking at my GCR but if you're running stock tank and fuel system then you should be fine without a firewall. IIRC, the firewall rule is only for cars with a fuel cell.

edit:

Here's the rule:
In any automobile where allowed removal of rear seats, upholstery, etc., creates an opening between the driver/passenger compartment and an exposed gas tank, fuel cell, or part thereof, a metal bulkhead which completely fills such opening shall be installed
Click to expand...

Seems to me that you'd be covered.
 
Last edited:
***IIRC, the firewall rule is only for cars with a fuel cell.***

Not true, reread the rule you posted.

***an exposed gas tank, fuel cell, or part thereof,***

Including a filler hose, filler tube or whatever else which is part of the OEM fuel tank/fuel cell.

As I read Jonathan's post (However in the sedan right now it is running the stock fuel system and no fuel is even routed through the trunk or cabin, no filler neck, no hose, our other cars have filler necks and the such, but this car is ALL external.) he needs nothing between the driver & the exposed gas tank, fuel cell, or part thereof because he has none of those items exposed.
 
ddewhurst said:
***IIRC, the firewall rule is only for cars with a fuel cell.***

Not true, reread the rule you posted.

***an exposed gas tank, fuel cell, or part thereof,***

Including a filler hose, filler tube or whatever else which is part of the OEM fuel tank/fuel cell.

As I read Jonathan's post (However in the sedan right now it is running the stock fuel system and no fuel is even routed through the trunk or cabin, no filler neck, no hose, our other cars have filler necks and the such, but this car is ALL external.) he needs nothing between the driver & the exposed gas tank, fuel cell, or part thereof because he has none of those items exposed.
Click to expand...

Correct. That's why I went back and read the rules... as I see it he's covered in this instance since everything is external. i.e. in my old ITA CRX, I added a sheetmetal cover over the filler neck where it came down to the fuel tank.

PS
As a side note, I'm very interested in seeing how an 850 sedan/wagn would do... ITS, correct?
 
so the 850 made it to the track and made novice race this weekend. We built the car for the owner in 4 weeks time and it passed tech with ease.

On 4 year old spent toyo RA1's, and a last minute suspension as a real stuff didnt come in and with a 1st time driver it ran 9 seconds off the lap record at PIR.

I'm anxious to finish the car, needs a diff, a real IT engine, the finished front coilovers and some fresh rubber. By the time we get that all up to speed the driver should be coming on, so i hope to see how competitive this car really can be.

Thanks everyone for your help on the trunk shield.
 
Knestis said:
We need pics...!
Click to expand...

DavidM said:
Definitely thread fail without some pics of the racin' wagon.
Click to expand...
The 850 is a sedan. It will be raced in ITS.
The wagon he is referring to is my 240 ITB wagon. It's still a couple weeks away from being track ready. Couple days really, but I work slow on projects.

Pics of the 850:

its850sequence.jpg


its850aug15pir01.jpg


its850aug15pir02.jpg


its850aug15pir03.jpg
 
Just wanted to say I LOVE your car. One of my favorites and always wondered why none from this "era" of Volvos have been built! Good luck with your new challenge!

Stephen
 
At first glance I thought thje #15 Mercury was one of the Bill Strope (sp) USAC cars from the left coast. :o Jones, Ward, Rutman.
 
Niiiice. :)

I've talked about building an 850 with another (ex)IT racer... seems like a really cool car for the class. Any input on whether or not you think you'll be able to get it down to weight? Also, tires... are those 245's up front? Have you thought about trying to fit the 275 R6's up there?
 
The 850 might be the coolest thing that I have ever seen.

Christian and I kidded around about me building one. I got scared off, mostly because I don't like being the first guy to blaze a trail. And this is certainly an unusual trail. But my hat's off to you. It's awesome. I hope it does well!

--Karl
 
Xian said:
Niiiice. :)

I've talked about building an 850 with another (ex)IT racer... seems like a really cool car for the class. Any input on whether or not you think you'll be able to get it down to weight? Also, tires... are those 245's up front? Have you thought about trying to fit the 275 R6's up there?
Click to expand...
We put some old 225/50-15's from our Volvo 240's on it for the Novice day. They are 4 years old... lol.

We are limited to a 15x7 wheel, so 245 may be the limit.

I doubt we will be able to get to minimum weight.

I doubt it will be challenging for wins in ITS. The 240Z's have quite a bit of time on us. We'll see how it goes. We are hopeful, but also realistic.

I found a couple pics of when we were putting the cage in my 240 wagon also:

img0368tm3.jpg


img0364gh5.jpg
 
You must log in or register to reply here.
Back
Top