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Old February 1st, 2011, 08:04 PM   #281
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Thanks Sean,but Jason (BAD93SBLZR) said he was shipping his over yesterday. Great price on that one for sure!
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Old February 3rd, 2011, 11:08 AM   #282
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from what i have read a tj need's to be a 03 or later to have enough fuel pressure to run the 6.0. they say sometimes the earlier ones will work and sometimes they wont.
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Old February 3rd, 2011, 11:28 AM   #283
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03-04 went to I think 45-48 psi.

That is why I went with a different pump, my TJ was like 40 psi. So I went with the corvette goodies..
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Old February 3rd, 2011, 01:26 PM   #284
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from what i have read a tj need's to be a 03 or later to have enough fuel pressure to run the 6.0. they say sometimes the earlier ones will work and sometimes they wont.
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03-04 went to I think 45-48 psi.

That is why I went with a different pump, my TJ was like 40 psi. So I went with the corvette goodies..
My research shows it's actually the Jeep regulator/filter that is causing the issue, not the pump. An unrestricted Jeep pump should be more than enough (personally I am using a Walbro 255LPH in tank). Go back a few posts and look at the pics I put up. Novak now sells that kits that replaces the Jeep filter/regulator with a flow through design.

Another option would be to tap the tank with a bulkhead type fitting and drop a pick-up line in the tank with an external in-line pump.

But until you get around the Jeep filter/regulator your fuel is going to be restricted.

Edit: By "unrestricted Jeep pump" I mean no Jeep regulator; you still need a regulator to keep it in the range the engine wants/needs.
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Old February 3rd, 2011, 01:41 PM   #285
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My research shows it's actually the Jeep regulator/filter that is causing the issue, not the pump. An unrestricted Jeep pump should be more than enough (personally I am using a Walbro 255LPH in tank). Go back a few posts and look at the pics I put up. Novak now sells that kits that replaces the Jeep filter/regulator with a flow through design.

Another option would be to tap the tank with a bulkhead type fitting and drop a pick-up line in the tank with an external in-line pump.

But until you get around the Jeep filter/regulator your fuel is going to be restricted.

Edit: By "unrestricted Jeep pump" I mean no Jeep regulator; you still need a regulator to keep it in the range the engine wants/needs.

Yes, but the point is that in the 03 redesign, the regulated rail went from 45psi to 58psi. So later models can hook up an LS motor with no other modifications...
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Old February 3rd, 2011, 02:01 PM   #286
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Yes, but the point is that in the 03 redesign, the regulated rail went from 45psi to 58psi. So later models can hook up an LS motor with no other modifications...
Missed that

Thanks!
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Old February 3rd, 2011, 02:08 PM   #287
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Finishing trans crossmember, power steering lines have been ran and hooked up. Trans dipstick hooked up. Waiting on the harness to get there so everything can be sent out to Jims.

Looking at gauges, tearing all the old ones out of dash and making a new panal for upgraded ones
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Old February 3rd, 2011, 10:36 PM   #288
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Pressure is very important but maintaining that pressure at the maximum flow rate is the most important factor of all. I doubt a pump designed for 200hp can support the fuel needs for 400+hp. Airtex 8248- $100 bosch 044- $200 walbro 255- $175-200 It's a small price to pay to know your engine isn't going lean at WOT.
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Old February 4th, 2011, 05:37 AM   #289
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I have a Walbro.

With that, Walbro is a Michigan based company right here in Cass City. Let's support our own!
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Old February 4th, 2011, 06:44 AM   #290
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http://treperformance.com/c-177-trep...uel-pumps.html

Looked at the Walbro site Jim, this was a link on their site. This pump, unlike Walbro, has a 1 year guarantee and is much quieter (so they say).

opinions?
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Old February 4th, 2011, 06:50 AM   #291
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I have a Walbro.

With that, Walbro is a Michigan based company right here in Cass City. Let's support our own!
Haha, they downsized me out of the company 15 years ago by a post-it note on my monitor! That was before the CEO went down for embezzeling millions.
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Old February 4th, 2011, 07:13 AM   #292
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Got the harness yesterday (Thanks Jason!), calling jimsperformance today, sending everything out first thing next week.
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Old February 4th, 2011, 08:35 AM   #293
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My pump makes no noise. Since it's in my tank, I can't give you the part number.

Jason, sorry for the way it went down, but I still say support the local economy.
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Old February 4th, 2011, 09:30 AM   #294
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Was always told to run it with an extra quart even in the 4.0 because the oil pressure was never good in it.

Also because the pan got pretty caved in
I know this was a while ago but it just myth that running an engine with more oil will blow the seals or is that only if you way over fill it?
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Old February 4th, 2011, 12:59 PM   #295
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My pump makes no noise. Since it's in my tank, I can't give you the part number.

Jason, sorry for the way it went down, but I still say support the local economy.
definitly running an external pump on mine.
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Old February 4th, 2011, 01:12 PM   #296
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I hope you have better luck than I have had with external pumps. I'm sold on in tank pumps.
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Old February 4th, 2011, 01:55 PM   #297
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I hope you have better luck than I have had with external pumps. I'm sold on in tank pumps.
Switching to a fuel cell next year .....and I had external pumps on my camaro years ago, never had an issue.
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Old February 5th, 2011, 06:01 AM   #298
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Switching to a fuel cell next year .....and I had external pumps on my camaro years ago, never had an issue.
High pressure pump EFI system like you will have here or a low pressure system with no return line? Big difference.
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Old February 5th, 2011, 06:11 AM   #299
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High pressure pump EFI system like you will have here or a low pressure system with no return line? Big difference.
Agreed.
Put the pump in the tank to be cooled and lubricated by the fuel.
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Old February 5th, 2011, 06:54 AM   #300
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Agreed.
Put the pump in the tank to be cooled and lubricated by the fuel.

What sense does it make to buy a pump for in the tank when next year i will have a fuel cell and have to get a different pump anyway?

I have run an external pump before on a 69 Camaro, NEVER an issue if you buy the right one. Still doing some looking around as to what I want. But it will not be one for in the tank.
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