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Old February 3rd, 2011, 03:08 PM   #281
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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, 11:36 PM   #282
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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, 06:37 AM   #283
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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, 07:44 AM   #284
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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, 07:50 AM   #285
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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, 08:13 AM   #286
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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, 09:35 AM   #287
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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, 10:30 AM   #288
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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, 01:59 PM   #289
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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, 02:12 PM   #290
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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, 02:55 PM   #291
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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, 07:01 AM   #292
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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, 07:11 AM   #293
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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, 07:54 AM   #294
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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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Old February 5th, 2011, 08:15 AM   #295
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I don't know what engine you had in your 69 Camaro but if it was a vintage engine, it was running at 6 psi with no regulator or return line. Now you will be running at 60 psi, require a regulator and return line. It's a huge difference.

Why will you need a new fuel pump when you go to a fuel cell? Fuel cells can utilize an in tank pump.

I'm not saying that an external pump won't work. But, I never found a good setup. I talked to a lot of people and tried a variety of pumps. I spent hundreds of dollars experimenting. ALL OF THEM ran hot and eventually quit after a period of time. The advantage of the in tank pump is that the gasoline keeps them cool. Plus, most pumps are designed to push fuel, not pull fuel. Diaphragm pumps fail quickly when pulling. Yes, the gerotor style pumps are a mechanical pump that pulls but those are the ones that ran hot.

With luck, you are getting good advice from someone that has a good working system.
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Old February 5th, 2011, 08:46 AM   #296
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Quote:
Originally Posted by whiterhino View Post
I don't know what engine you had in your 69 Camaro but if it was a vintage engine, it was running at 6 psi with no regulator or return line. Now you will be running at 60 psi, require a regulator and return line. It's a huge difference.

Why will you need a new fuel pump when you go to a fuel cell? Fuel cells can utilize an in tank pump.

I'm not saying that an external pump won't work. But, I never found a good setup. I talked to a lot of people and tried a variety of pumps. I spent hundreds of dollars experimenting. ALL OF THEM ran hot and eventually quit after a period of time. The advantage of the in tank pump is that the gasoline keeps them cool. Plus, most pumps are designed to push fuel, not pull fuel. Diaphragm pumps fail quickly when pulling. Yes, the gerotor style pumps are a mechanical pump that pulls but those are the ones that ran hot.

With luck, you are getting good advice from someone that has a good working system.
Yes, the same pump could be ran in a fuel cell. Didn't the external pumps try to ruin at least 2 of your wheeling trips before you switched?
If you want to compete with this thing then it would be a real bummer to get all the way to a comp (spend the money) just to get sidelined at the worst time over a known problem.
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Old February 5th, 2011, 08:53 AM   #297
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Quote:
Originally Posted by whiterhino View Post
I don't know what engine you had in your 69 Camaro but if it was a vintage engine, it was running at 6 psi with no regulator or return line. Now you will be running at 60 psi, require a regulator and return line. It's a huge difference.

Why will you need a new fuel pump when you go to a fuel cell? Fuel cells can utilize an in tank pump.

I'm not saying that an external pump won't work. But, I never found a good setup. I talked to a lot of people and tried a variety of pumps. I spent hundreds of dollars experimenting. ALL OF THEM ran hot and eventually quit after a period of time. The advantage of the in tank pump is that the gasoline keeps them cool. Plus, most pumps are designed to push fuel, not pull fuel. Diaphragm pumps fail quickly when pulling. Yes, the gerotor style pumps are a mechanical pump that pulls but those are the ones that ran hot.

With luck, you are getting good advice from someone that has a good working system.
Wasn't the original motor, but still older, had a modified 396 in it.

I didn't realize you could use the same pump for a fuel cell. Good to know, however, I did some reading on pirate and found that a lot of prople were saying it was a complete pain in the ass to get the pump into the tank and there was a lot of modifying needed. I'll see tomorrow if I can find that thread. (no time today, kids 16 bday party at my place...ugh)
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Old February 5th, 2011, 09:28 AM   #298
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I am not trying to argue.
Just an old fart who has built a couple fuel systems (not for a LS) and had enough failures to learn from. (And I will continue to learn cause I still do not know much)
Your stock tank sender/fuel pump can be removed and a replacement installed to feed that LS.
GenRite makes a ring for the top of a tank that a Jeep style sender will mount to. Have one in the fuel cell in my POS. The sender/fuel pump hanger will allow about 4" of variation in tank depth so it should adapt to about any cell..

BTW- Bet you throw a great party!
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Old February 7th, 2011, 08:22 AM   #299
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Headers are supposed to be to Kevins today and comp/harness being sent out to Jimsperformance this afternoon.

Decided on the Airtex E8248 for a fuel pump. Jim, I know you are set against external pumps, worse case .....this one can be moved to in the tank.

Bryce....thanks for taking the time to help out a newbie
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Old February 7th, 2011, 10:21 AM   #300
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Just remember, I will NEVER say I told you so.
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