Lateral-g Forums

Lateral-g Forums (https://www.lateral-g.net/forums/index.php)

- Engine (https://www.lateral-g.net/forums/forumdisplay.php?f=37)

- - Ram jet (https://www.lateral-g.net/forums/showthread.php?t=7535)

Quote:

Originally Posted by camcojb

I understand the fuel pressure regulator it was the cheating part I didn't get! Obviously up the pressure will affect the A/F, but never considered it cheating. :D

And the above is why I never use an EFI system that I don't tune myself. The tune and quality thereof is the key to a good EFI system, so these "closed" systems that can't be tweaked by the end-user do not appeal to me.

I agree, thats why Im switching it this year, cant deal w the non tunability, but I only drove the car for 3 mo so I got used to it......then I dropped a valve seat, and now its getting modded.

Quote:

Originally Posted by pushrod243

A lot of thought should go into your fuel system or you might spend money twice to get a system that works correctly in the end. If you search this forum there is a lot of info about injected fuel systems. One of the things you have to keep in mind is keeping the fuel cool. The pump heats up the fuel then you are pumping it to the fuel rails and returning the excess which is heated by the engine. Eventually you can boil the fuel in the lines if you have a bad system.

One solution is to run an in tank pump to help cool the pump. I like the bosch pump from a Porsche Turbo car. I got the part # from this forum. Kurt from wheel to wheel suggested it when I was having trouble with my aeromotive pump. I had Ricks build a tank with two of those pumps inside it. I had planned to put twin turbos on my car and need the second pump for the trubos. Your ramjet should be fine with one pump since that is all i use on mine without the boost.

Also fuel line and returns must be large enough to move the fuel without causing any restriction. I would suggest -8 feed and -6 return as minimums some guys might tell you -10 feed with -8 but I have -8 on my car and it seems to work fine.

You should be able to put a system together without buying a high dollar tank but you will need the right pump etc to get it done. My car is a 69 Nova with a ramjet 502. And it was boiling fuel in the return lines on the power tour in 2005 and the bosch pumps in the gas tank cured that. I did it twice so you dont have too :)

Never had problems w the current pump boiling fuel but I have to switch to a bigger pump, so I hope I dont have too much problems w this. What pump were your running when you had the boiling problem?

Quote:

Originally Posted by Mikael B Alfredsson

Ok here is the deal, I have a 454 with a Ram jet and I need to know how to
and what I need to make it work with a fuel cell ,or if use the stock tank
can I make it work some how (I do paint, body and fabrication so I don't know anything about fuel systems so any help is appreciated)

tanks

mike a

Hey Mike, didn't the RamJet come with a regulator on the fuel rail return? Maybe I am reading to much into the other posts. Anyway you can get a Bosch in tank pump, hang a sock on the inlet and attach it to the original pickup in the tank. Plumb the outlet of the pump through the original pickup/sender bulkhead and use the original pickup as the return. Is this some sort of package you bought ready to go? This install is very simple. What kind of vehicle?

Quote:

Originally Posted by Fotoboy

Never had problems w the current pump boiling fuel but I have to switch to a bigger pump, so I hope I dont have too much problems w this. What pump were your running when you had the boiling problem?

I was running an aeromotive a-1000 pump outside the tank. It was on the powertour and after a few hours of continous running it would act like it was vapor locking.