Register or Log In To remove these advertisements. |
|
|
|
Thread Tools | Display Modes |
07-30-2014, 10:47 PM | #1 |
Senior Member
Join Date: Mar 2004
Location: Nebraska
Posts: 583
|
cutting the firewall whats to gain?
well,
i am thinking of getting started back on my truck again. since its in its raw form i want to make all the mods i can now. question is how much is there to gain to cutting the firewall to set the motor back. and how far back is recomended. if i go this rout i will probably cut to fit a big block. need to read the nhra rules again as its been a while since i have read them.. later andrew k
__________________
my build http://67-72chevytrucks.com/vboard/s...d.php?t=210902 |
07-31-2014, 01:06 AM | #2 |
Registered User
Join Date: Jul 2009
Location: San Jose Ca
Posts: 2,871
|
Re: cutting the firewall whats to gain?
I believe if you modify the firewall then you have to run a full cage. I am sure someone will jump in with a lot of the rules that come into play once you do that.
I am tempted to recess my firewall so I am sub'ing this thread.
__________________
David Used parts build: http://67-72chevytrucks.com/vboard/s...d.php?t=638991 My brother's Nova: http://www.67-72chevytrucks.com/vboa...d.php?t=727985 Rear suspension rework: http://www.67-72chevytrucks.com/vboa...d.php?t=750557 Instagram: myfabguy |
07-31-2014, 12:00 PM | #3 |
Senior Member
Join Date: Mar 2004
Location: Nebraska
Posts: 583
|
Re: cutting the firewall whats to gain?
ya,
i have the cage installed already...
__________________
my build http://67-72chevytrucks.com/vboard/s...d.php?t=210902 |
08-01-2014, 08:06 AM | #4 |
Registered Truck Offender
Join Date: May 2008
Location: hells training ground (aka Ariz)
Posts: 3,118
|
Re: cutting the firewall whats to gain?
there is a LOT of "if/ then's"
If your required by the rules to run a cage (because you cut the firewall) then you must have a SFI certified window net, and trans shield and flexplate shield and... The advantage of shifting weight towards the rear might be quickly overcome with all the added weight of the 'if/then" items
__________________
Still playin with trucks, even at my age! When you're dead, it's only a problem for the people around you, because you don't know you're dead. .....It's kinda the same when your STUPID. I just did my taxes and reviewed my SS statement. Thanks to the current administration it looks like I will only have to work till noon on the day of my funeral. |
08-01-2014, 01:16 PM | #5 |
meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
|
Re: cutting the firewall whats to gain?
I had some older guys put it an interesting way:
There is a fine line between a street car that can run like a raped-ape at the track, and a track car you can manage to drive on the street. If you ever watch/read the Drag Week events, you can see the lines blur, but they still hold true. When it comes to things like weight reduction, major chassis mods, and altering anything like firewall or wheelbase, sometimes is just easier to start clean. A clean chassis and a copy of the rulebook means you can build UP instead of stripping DOWN. Me personally, I just prefer to make as much power as I can, build the truck the way I like it with the occasional nod to safety and/or the rules. I find something rather rewarding about being kicked off a track for going too fast.
__________________
'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD
|
Bookmarks |
|
|