Link?
Info?
I need to go to a cell as my tank has several patches, but I want to stay with an in tank setup.
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.
In or out of tank fuel pumps
- Thread starter wetoolowdingbangow
- Start date
Link?
Info?
I need to go to a cell as my tank has several patches, but I want to stay with an in tank setup.
Well, I have to agree with you on most of this. You make some very valid points. I'm not so sure about the lasting longer one. I read so many post that start with "I just put a new pump in my tank last year and it's shot already!". Maybe the key is to use a good pump to begin with.
The only time I've ever heard my pumps was when the sock on the pickup was getting plugged up. I bet the in tank pumps do run cooler. Makes sense.
I think you're good with either type of system. They both have advantages and disadvantages. I like external because of the ease of repair. All I can say is if you go in tank buy a premium pump.
Stomis
Professional Amateur
Starts here.
https://ck5.com/forums/threads/stom...ol-new-wheels-and-drag-radials.311209/page-18
Fairly simple to do if you've got some fab/ingenuity under your belt.
That is 100% the key.
wetoolowdingbangow
1/2 ton status
Would a walbro be considered a good pump? Any other recommendations? I guess it needs to be on the TBI level. Ive read some info on people getting too strong of pump for tbi. Tbi is around 12 psi right?
Just make sure you get a real walbro, lots of fakes out there.
How can you tell the difference?
My rig is TBI so the plumbing and wiring are already there.
So basically buy an aluminum fuel cell, cut a hole, build a sump bracket deal for the pump and the return, install new pump, and hook up wires and plumbing?
Just buy an OEM replacement.
Martin
Martin
12PSI? I must have been thinking of some of the MPFI systems I have worked on.
Whatever the correct pressure is, do be sure to match the pump appropriately.
It's 9-13.
Martin
Martin
^This is correct
What do carburetor pumps run? My 6.2 lift pump runs 7-9PSI. I thought there was a large pressure difference.
If not, why do folks always have to upgrade pumps?
I am not sure what mech pumps max out at, but from my understanding they vary with how much acceleration is needed (meaing how much on the gas you are or not)...could be wrong though.
It wasn't until the Vortec age that you started to see pumps that ran in the 50-60+ psi ranges. Most that upgrade pumps on TBI units do so because they have done mods to the motor and need the additional fuel supply. So if you upgrade the pump and just run it through a regulator you can control exactly how much fuel the motor is getting and fine tune it.
Don't even know if this was your question or not...
I am not sure what mech pumps max out at, but from my understanding they vary with how much acceleration is needed (meaing how much on the gas you are or not)...could be wrong though.
It wasn't until the Vortec age that you started to see pumps that ran in the 50-60+ psi ranges. Most that upgrade pumps on TBI units do so because they have done mods to the motor and need the additional fuel supply. So if you upgrade the pump and just run it through a regulator you can control exactly how much fuel the motor is getting and fine tune it.
Don't even know if this was your question or not...
Kinda. I was wondering why, if the pressures are at least somewhat similar, I haven't heard of anyone reusing a mechanical pump when switching to TBI (everyone seems to be upgrading to electric). I had been assuming they ran a higher pressure like the more modern units.
TPI was 45 psi.
Martin
Martin
.
Mechanical pumps require the engine to be rotating to build pressure , this is fine for a carb since you usually have fuel in float bowl to get vehicle started.tbi ,tpi or any fuel injection requires pressure before engine is rotated to prime fuel rails and injectors , so that is why there all electric. Unless you go back to the days of mechanical injection but that's a whole different animal.
Took the words out of my mouth
I like my mechanical injection...
I think carbs have their place in this world for sure. Easy to tune with high HP, extremely simple, ect. However when you get in the offroad world, you will always find yourself cursing the carb to hell and back. On a normal street truck and even just a tool around the back country truck it does just fine, but put it on some side hills and see how much you like it
I think carbs have their place in this world for sure. Easy to tune with high HP, extremely simple, ect. However when you get in the offroad world, you will always find yourself cursing the carb to hell and back. On a normal street truck and even just a tool around the back country truck it does just fine, but put it on some side hills and see how much you like it
I meant that I actually have mechanical injection. My rigs run 6.2 engines. No carbs required.
