Fuel Block mounting on firewall... - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> General Rodding Tech
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 08-15-2010, 01:36 AM
454headache's Avatar
Registered User
 
Last photo:
Join Date: Apr 2009
Location: Washington
Age: 34
Posts: 237
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Fuel Block mounting on firewall...

Is it a good (safe) idea to mount a fuel block to the firewall? I mean I have rubber engine mounts, so the engine torques over when I rev it.

Example found on web-

http://public.fotki.com/JCole/11_fom...ncoln_v16.html

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 08-15-2010, 05:56 AM
Rickracer's Avatar
ASE Master Tech, Fabricator
 
Last wiki edit: Taurus 2-speed fan control wiring diagram Last photo:
Join Date: Jan 2010
Location: Kissimmee, Florida
Age: 55
Posts: 937
Wiki Edits: 8

Thanks: 0
Thanked 3 Times in 3 Posts
I often use the General Regulations in the NHRA or IHRA rulebook as guidelines for safety questions, and there is a rule about not mounting the regulator or any fuel fittings on the firewall. I would mount any fuel handling equipment either to the frame or a bracket mounted to the frame or fender, on the same side of the car as it comes forward from the tank, or on the same side as it's going to, whichever makes more sense, and/or whichever makes for a simpler, cleaner looking system.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 08-15-2010, 05:57 AM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Quote:
Originally Posted by 454headache
Is it a good (safe) idea to mount a fuel block to the firewall?
The NHRA doesn't think it's a good idea- you will not pass a pre-race inspection if the firewall where the block or regulator, etc. is within a short distance (fore and aft) of the flywheel- the idea being if there's a catastrophic failure, the flywheel/clutch/converter could break the lines.

But all that aside, you only need to use a short length of rubber line (stainless braided hose, if you choose- it is treated as solid metal fuel line, AFA NHRA rules goes) from the chassis or firewall mounted fuel line to the engine mounted carbs, etc.. This is what the OEM does between the fuel line from the tank (usually clamped to the frame, adjacent to the pump) to the mechanical fuel pump. This prevents metal fatigue from the engine rocking around from breaking a solid fuel line.

BTW, NHRA rules allow for just 12" of rubber fuel hose used in the entire fuel system. Steel braided hose is exempt from this.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 08-15-2010, 09:56 AM
MARTINSR's Avatar
Brian Martin,Freelance adviser
 
Last photo:
Join Date: Jun 2004
Location: San francisco bay area
Age: 55
Posts: 13,112
Wiki Edits: 0

Thanks: 1,290
Thanked 1,138 Times in 1,008 Posts
I think the NSRA rule book is going a bit far. I mean does that mean we don't cover our welds with filler and have axle studs sticking out a half inch past the lugs?

On your average street rod, a fuel block on the firewall with hoses running to the carb or carbs is plenty safe. I am a nut for safety stuff but that goes out into another galaxy when you are talking about real world concerns.

Brian
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 08-27-2010, 02:10 AM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 12,852
Wiki Edits: 326

Thanks: 750
Thanked 969 Times in 817 Posts
Quote:
Originally Posted by MARTINSR
I think the NSRA rule book is going a bit far. I mean does that mean we don't cover our welds with filler and have axle studs sticking out a half inch past the lugs?

On your average street rod, a fuel block on the firewall with hoses running to the carb or carbs is plenty safe. I am a nut for safety stuff but that goes out into another galaxy when you are talking about real world concerns.
Brian
Years ago when I began teching for NHRA, I was told by the old-timers that each and every rule in the Rulebook was there because someone was either injured or killed. 'Nuf said.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 08-29-2010, 11:51 AM
Rickracer's Avatar
ASE Master Tech, Fabricator
 
Last wiki edit: Taurus 2-speed fan control wiring diagram Last photo:
Join Date: Jan 2010
Location: Kissimmee, Florida
Age: 55
Posts: 937
Wiki Edits: 8

Thanks: 0
Thanked 3 Times in 3 Posts
Quote:
Originally Posted by MARTINSR
.... I am a nut for safety stuff but that goes out into another galaxy when you are talking about real world concerns....
So what part of FIRE isn't real world? Rubber hose has caused thousands of fires over the years, and a fire on the motor or fender is better than a fire on the firewall between the engine and the passengers, at least in MY world,
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 08-29-2010, 12:35 PM
MARTINSR's Avatar
Brian Martin,Freelance adviser
 
Last photo:
Join Date: Jun 2004
Location: San francisco bay area
Age: 55
Posts: 13,112
Wiki Edits: 0

Thanks: 1,290
Thanked 1,138 Times in 1,008 Posts
"Real world" is if something is done properly be it mount the block on the fire wall and have a rubber hose going to the carb, or mount the block on the wheel well and have a rubber hose going to the carb, it will work. In the real world, if it is done properly and maintained even sort of good nothing will ever happen.

I know this because there are 4,258,574,457 cars in the world with a piece of rubber hose in the fuel system going to the carb or FI.

The HOSE is what is going to fail and cause a fire, if that fire is in the engine compartment there isn't one single bit of difference in where that block is! Not one single difference! A fire is a fire and being over one foot closer to you isn't going to mean crap.

I say use proper hose, proper clamps and do it right and put the block where it works and you will be fine.

Brian

Last edited by MARTINSR; 08-29-2010 at 12:46 PM.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 08-29-2010, 12:45 PM
MARTINSR's Avatar
Brian Martin,Freelance adviser
 
Last photo:
Join Date: Jun 2004
Location: San francisco bay area
Age: 55
Posts: 13,112
Wiki Edits: 0

Thanks: 1,290
Thanked 1,138 Times in 1,008 Posts
Quote:
Originally Posted by techinspector1
Years ago when I began teching for NHRA, I was told by the old-timers that each and every rule in the Rulebook was there because someone was either injured or killed. 'Nuf said.
Well, again, that is RACING too. We aren't going to build a 38 Chevy sedan for the family and follow the NHRA rule book. I don't think you need to put your family in helmets and put a drive shaft loop and a number of other rules that would be ludicrous for a street car (or at least total overkill).

So I am with you to do things right, but THAT particular rule is overkill for a street car. The biggest reason why they don't want it there is because of fly wheel/clutch disintegration and flying shrapnel breaking the line. What is the possibility of that in a street car?

Listen, something "real world" like seat belts and the like, I use them EVERY single time I move a car on street. But this hose issue is overkill in my opinion.

Brian
Reply With Quote Quick reply to this message

Recent General Rodding Tech posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Russell Y Type Fuel Block Problems. malc General Rodding Tech 4 05-27-2007 09:07 AM
Chevy small block fuel injection homesimpsonr Engine 7 05-19-2007 04:11 PM
fuel regulator mounting? ocbaud Engine 2 02-12-2007 03:43 PM
Fuel Injected Small block ebmang2 Engine 17 03-22-2004 09:18 PM
questions about fuel system for a 434 small block chevy tony350ss Engine 4 08-27-2003 11:02 AM


All times are GMT -6. The time now is 09:55 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.