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FUEL ISOLATOR LOCATION?????? Pass TECH???? #628862
03/02/10 01:30 PM 03/02/10 01:30 PM
Joined: Jun 2004
Posts: 767
NW PA
V10nacuda Offline OP
super stock
V10nacuda  Offline OP
super stock

Joined: Jun 2004
Posts: 767
NW PA
Since I moved the gauges into the dash the mechanical fuel pressure gauge line isn't long enough to reach it's old mounting spot.

I thought about running the isolater hose through the firewall & then just mount the isolater horizontial just above it. Then I had this idea but I am not sure if it will pass tech.

The isolater it outside???


Any input or better ideas???
This car will still be usig a steel hood so it has to stay clear of the hinges..

5840679-fuelisolater.jpg (68 downloads)
Re: FUEL ISOLATOR LOCATION?????? Pass TECH???? [Re: V10nacuda] #628863
03/02/10 01:39 PM 03/02/10 01:39 PM
Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
Quicksilver440 Offline
I Live Here
Quicksilver440  Offline
I Live Here

Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
I don't think it will pass tech as no fuel lines, etc are supposed to be mounted on the firewall. But they may or may not actually call you on it.
Re: FUEL ISOLATOR LOCATION?????? Pass TECH???? [Re: V10nacuda] #628864
03/02/10 01:46 PM 03/02/10 01:46 PM
Joined: Dec 2006
Posts: 2,105
Byron, NY
W.I.N. Racing Offline
top fuel
W.I.N. Racing  Offline
top fuel

Joined: Dec 2006
Posts: 2,105
Byron, NY
No fuel components mounted to the firewall and I'm not a fan of fuel lines passing over (especially the couplings)the headers.
Also keep in mind that the isolator needs to be at the same level as the gauge.

'01 P1500, Blown/Inj BAE,/Veney ,Bruno/CS2,Dana 60
'01 Dodge 3500 S Cummins Auto, Fresh air kit, 4" Exhaust,
'05 Dodge Magnum R/T - Too Much to list
'60 Willys CJ5
'01 International LPX - Project,DT466, Allison
'64 Plymouth Valiant, Inj 528 Hemi, 2spd
Re: FUEL ISOLATOR LOCATION?????? Pass TECH???? [Re: V10nacuda] #628865
03/02/10 01:46 PM 03/02/10 01:46 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
Quote:

Since I moved the gauges into the dash the mechanical fuel pressure gauge line isn't long enough to reach it's old mounting spot.

I thought about running the isolater hose through the firewall & then just mount the isolater horizontial just above it. Then I had this idea but I am not sure if it will pass tech.

The isolater it outside???


Any input or better ideas???
This car will still be usig a steel hood so it has to stay clear of the hinges..




Not suppost to be within 6" of the firewall(any fuel
items) but like said they may over look it if its
just under the 6"
Re: FUEL ISOLATOR LOCATION?????? Pass TECH???? [Re: MR_P_BODY] #628866
03/02/10 08:23 PM 03/02/10 08:23 PM
Joined: Dec 2004
Posts: 1,489
St. Louis Mo.
10 o to go Offline
"Happy Don"
10 o to go  Offline
"Happy Don"

Joined: Dec 2004
Posts: 1,489
St. Louis Mo.
Quote:

Quote:

Since I moved the gauges into the dash the mechanical fuel pressure gauge line isn't long enough to reach it's old mounting spot.

I thought about running the isolater hose through the firewall & then just mount the isolater horizontial just above it. Then I had this idea but I am not sure if it will pass tech.

The isolater it outside???


Any input or better ideas???
This car will still be usig a steel hood so it has to stay clear of the hinges..




Not suppost to be within 6" of the firewall(any fuel
items) but like said they may over look it if its
just under the 6"



I thought it was 6 inchs of bell housing ,the reason i say this because one side of isolater is fuel the other has no fuel in the line running into car .
ive run one for 20 years mine mounted on intake by alltread rod CUSTOM BENT to fit up and away from bell housing .
Don

2009 418" build dan smith built new 9.96 131.82 6.23 108 1.30 60 foot best to date 9/15/09 8in 727 430 dana 2860 lb 3040 lb w driver
Re: FUEL ISOLATOR LOCATION?????? Pass TECH???? [Re: 10 o to go] #628867
03/02/10 08:45 PM 03/02/10 08:45 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
I thought it was 6 inchs of bell housing ,the reason i say this because one side of isolater is fuel the other has no fuel in the line running into car .
ive run one for 20 years mine mounted on intake by alltread rod CUSTOM BENT to fit up and away from bell housing .
Don



What I recall is 6" from the firewall.... I could be wrong
Re: FUEL ISOLATOR LOCATION?????? Pass TECH???? [Re: V10nacuda] #628868
03/02/10 08:53 PM 03/02/10 08:53 PM
Joined: Feb 2007
Posts: 1,608
fresno ca
M
mikeysmopars Offline
top fuel
mikeysmopars  Offline
top fuel
M

Joined: Feb 2007
Posts: 1,608
fresno ca
I had one just like that in my 68 dart that I used for the nitrous side and mounted it where the wiper motor was. Ran two seasons like that at a couple different tracks. Never was mentioned.

Last edited by mikeysmopars; 03/02/10 08:58 PM.
Founder and CEO of the Central Valley Mopar Drag Pack
Re: FUEL ISOLATOR LOCATION?????? Pass TECH???? [Re: MR_P_BODY] #628869
03/02/10 08:54 PM 03/02/10 08:54 PM
Joined: Apr 2006
Posts: 3,675
Akron, Ohio U.S.A.
roadhazard Offline
master
roadhazard  Offline
master

Joined: Apr 2006
Posts: 3,675
Akron, Ohio U.S.A.
I have had mine mounted on the firewall for 20 years

Nobody has ever said a word

Re: FUEL ISOLATOR LOCATION?????? Pass TECH???? [Re: roadhazard] #628870
03/02/10 09:10 PM 03/02/10 09:10 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
I know my isolator isnt 6" off the firewall but it
may be about 5" and I know that no one has given me
any problems byt at least its close to the spec

This is from a older book " fuel pressure gauge isolators
with steel braided line, may be mounted on firewall"
Re: FUEL ISOLATOR LOCATION?????? Pass TECH???? [Re: MR_P_BODY] #628871
03/02/10 09:50 PM 03/02/10 09:50 PM
Joined: Aug 2009
Posts: 2,039
Mooresburg, Tn
'
'72CudaRacer Offline
top fuel
'72CudaRacer  Offline
top fuel
'

Joined: Aug 2009
Posts: 2,039
Mooresburg, Tn
What Mike said, plus if fuel lines are braided steel, you can run them just about anywhere except drive shaft tunnel or drivers compartment.
Re: FUEL ISOLATOR LOCATION?????? Pass TECH???? [Re: '72CudaRacer] #628872
03/02/10 09:58 PM 03/02/10 09:58 PM
Joined: Jun 2005
Posts: 6,257
gulfport, ms, west mi
rowin4 Offline
master
rowin4  Offline
master

Joined: Jun 2005
Posts: 6,257
gulfport, ms, west mi
I never heard that the isolator had to be even with the gage, is this true?


it's ok to butt heads, just don't do it with a butthead
Re: FUEL ISOLATOR LOCATION?????? Pass TECH???? [Re: roadhazard] #628873
03/03/10 12:35 PM 03/03/10 12:35 PM
Joined: Jun 2004
Posts: 767
NW PA
V10nacuda Offline OP
super stock
V10nacuda  Offline OP
super stock

Joined: Jun 2004
Posts: 767
NW PA
Well now that I found my 2009 RULE BOOK section 19 General regs Section 1:5 Fuel systems reads:

"Cool cans,fuel distribution blocks ect must be 6" forward of the flywheel / bell housing on a RWD car & oddosite side of a FWD. Fuel pressure gauge isolators with steel braided line MAY BE MOUNTED ON THE FIRE WALL"

I think I will mount it where ROADHAZARD has his....


Thanks for the pic!!!!

V10

Last edited by V10nacuda; 03/03/10 12:40 PM.
Re: FUEL ISOLATOR LOCATION?????? Pass TECH???? [Re: rowin4] #628874
03/03/10 12:43 PM 03/03/10 12:43 PM
Joined: Apr 2006
Posts: 3,675
Akron, Ohio U.S.A.
roadhazard Offline
master
roadhazard  Offline
master

Joined: Apr 2006
Posts: 3,675
Akron, Ohio U.S.A.
Quote:

I never heard that the isolator had to be even with the gage, is this true?





I don't believe so.
My isolator is on the firewall and the guage is under the dash and has worked fine for 20 years.
The AN line that runs out the back of the isolator goes through one of the original heater core holes
I also used hard steel line from the fuel log to the isolator. I'm too cheap for braided lines and fittings

Re: FUEL ISOLATOR LOCATION?????? Pass TECH???? [Re: 10 o to go] #628875
03/03/10 01:42 PM 03/03/10 01:42 PM
Joined: Oct 2003
Posts: 7,506
Az
Crizila Offline
master
Crizila  Offline
master

Joined: Oct 2003
Posts: 7,506
Az
Quote:

Quote:

Quote:

Since I moved the gauges into the dash the mechanical fuel pressure gauge line isn't long enough to reach it's old mounting spot.

I thought about running the isolater hose through the firewall & then just mount the isolater horizontial just above it. Then I had this idea but I am not sure if it will pass tech.

The isolater it outside???


Any input or better ideas???
This car will still be usig a steel hood so it has to stay clear of the hinges..




Not suppost to be within 6" of the firewall(any fuel
items) but like said they may over look it if its
just under the 6"



I thought it was 6 inchs of bell housing ,the reason i say this because one side of isolater is fuel the other has no fuel in the line running into car .
ive run one for 20 years mine mounted on intake by alltread rod CUSTOM BENT to fit up and away from bell housing .
Don

Inside the frame rails for all fuel components and - "at least 6" forward of the flywheel /bellhousing area on RWD cars." " Fuel pressure gauge isolators, with steel braided line, may be mounted on firewall." - assume this means regardless of where your flywheel is located. This info is out of a 2007 rulebook.

Fastest 300

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