fore fuel hat cornering problems - Dodge Challenger Forum: Challenger & SRT8 Forums
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post #1 of 12 (permalink) Old 07-03-2019, 12:07 PM Thread Starter
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fore fuel hat cornering problems

I installed a fore single pump setup a while back when upgrading to a return style system compatible with E-85 fuel.
The issue I'm having is anytime I make a hard left for more than 5-8 seconds the engine starts missing, it's running out of fuel. This is with anything less than 3/4 tank.
I checked all 3 hoses on both hats and am not able to figure out what to do about this issue.
Fore says they don't recommend their application for road racing, I'm doing street racing on abandoned roads in "Mexico".
The factory setup didn't have this issue. If there is no fix I might go back to a factory setup.

I've thought about trying to install one of those hydromats that holley sells but I'm not sure if that would help.

Anyone have any recommendations?
thanks.


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post #2 of 12 (permalink) Old 07-03-2019, 12:49 PM Thread Starter
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after considerable searching on the webs I found other people who were having this issue and it seems that problem could be a mis-aligned or damaged O ring on the pass side hat.
When converting to a return style setup the factory regulator is replaced with a "plug". Apparently it is easy to mis-align said plug and get fuel leaking around it. This will cause the fuel that should be sent over to the driver side to be dropped back into the pass side tank...
So once I'm down to less than 1/4 I'll pull the pass side hat (again) and see if I can verify the plug is correctly seated.
If all else fails the hydramat is an option, but it's not cheap.
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post #3 of 12 (permalink) Old 07-03-2019, 02:15 PM
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If you don't have an internal fuel leak, which could be anywhere, the fix will be adding a second fuel pump...

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post #4 of 12 (permalink) Old 07-03-2019, 10:27 PM
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Are you running the factory passenger (secondary) pump?


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post #5 of 12 (permalink) Old 07-08-2019, 09:13 AM Thread Starter
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Quote:
Originally Posted by Gila Hemi View Post
If you don't have an internal fuel leak, which could be anywhere, the fix will be adding a second fuel pump...
I've thought about that, but then I will have cavitation issues with whichever pump gets starved for fuel...plus I'd need to make another relay wiring harness and drop another $600 in parts.


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Are you running the factory passenger (secondary) pump?
Yes the pass side fuel hat is in place, I have a new one that should be coming in later today.
I will install (carefully this time) the regulator block off and then replace the factory pass side assembly with the new unit.
The red circle is where the regulator block off goes.
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post #6 of 12 (permalink) Old 07-08-2019, 11:44 AM
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Quote:
Originally Posted by chizzle1 View Post
Yes the pass side fuel hat is in place, I have a new one that should be coming in later today.
I will install (carefully this time) the regulator block off and then replace the factory pass side assembly with the new unit.
The reason I asked was that it could be the factory pump is having a heck of a time filling the driver side saddle tank.
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post #7 of 12 (permalink) Old 07-08-2019, 11:45 AM Thread Starter
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The reason I asked was that it could be the factory pump is having a heck of a time filling the driver side saddle tank.
I wish lol
I'm only making ~500hp, not near enough to starve the tank (I hope).
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post #8 of 12 (permalink) Old 07-08-2019, 12:11 PM
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Quote:
Originally Posted by chizzle1 View Post
I wish lol
I'm only making ~500hp, not near enough to starve the tank (I hope).
Only 500hp.

I don't know, but the guys from Arrington were adamant about keeping fuel above 1/4 tank when running their high flow pump with the 8psi SC setup to avoid fuel starvation. I assumed it was because the passenger side pump was not up to the task.
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post #9 of 12 (permalink) Old 07-08-2019, 06:45 PM
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Quote:
Originally Posted by chizzle1 View Post
I've thought about that, but then I will have cavitation issues with whichever pump gets starved for fuel...plus I'd need to make another relay wiring harness and drop another $600 in parts.




Yes the pass side fuel hat is in place, I have a new one that should be coming in later today.
I will install (carefully this time) the regulator block off and then replace the factory pass side assembly with the new unit.
The red circle is where the regulator block off goes.
You have a completely different system from the one I'm installing right now. Mine has a primary and secondary fuel pump, both on the driver's side, and does away with the stock fuel bucket, which cannot fill fast enough to supply fuel to the pumps. My system is rated at 1,000 hp.
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post #10 of 12 (permalink) Old 07-08-2019, 06:51 PM
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Oh and if you are running e85 500HP does take a lot more fuel which makes me suspect your stock secondary pump is most likely not producing enough flow.
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