Utilizing High speed on Fuel Lab?

[PTSUPERD]

Any of you guys who are running these two speed pump have them wired to where they go to high under a set boost pressure? Im dropping fuel pressure at WOT. Not a dangerous drop, but probably enough...

Thinking a type of switch like is used with two stage water injection setups....

 

[kyle43335]

Any of you guys who are running these two speed pump have them wired to where they go to high under a set boost pressure? Im dropping fuel pressure at WOT. Not a dangerous drop, but probably enough...

Thinking a type of switch like is used with two stage water injection setups....

use a pressure swith set to 15-20 psi that activates a relay that switches the speed control from ground to 12+

done

 

[PTSUPERD]

Link me said switch. Lol.

 

[Pizza pig]

What pump are you running Garrett?

 

[HOOV3R]

Link me said switch. Lol.

Something like this
http://www.alcoholinjectionsystems....-Pressure-Switch,-Hard-Line/product_info.html

 

[PTSUPERD]

What pump are you running Garrett?

41401-c I think

 

[Pizza pig]

same pump I run, needle doesnt move from 60psi with 225s. Hmmmm

 

[Cutting-Edge Diesel]

Yeah I was going to say mine doesn't move any at WOT

 

[PTSUPERD]

WTH. You guys wired on the low side?

 

[Cutting-Edge Diesel]

yup with a jump wire

 

[java]

yup with a jump wire

Same here, mine doesn't drop any at wot with 190s

 

[kyle43335]

225 100s and mine doesnt move on the slow speed.


you dont have a jj rr do you? lmfao

 

[PTSUPERD]

225 100s and mine doesnt move on the slow speed.


you dont have a jj rr do you? lmfao

uhhhhh. lol.

Where do I need to look first?

 

[kyle43335]

uhhhhh. lol.

Where do I need to look first?

post up what components your system has (filter numbers, line sizes,sump or draw straw, etc)

main feed should be no smaller them -8 with sump.-10 with draw straw. after the y it should be no smaller then -6 with a -6 return line, if its all custom.

also post what make and model your regulator is. whats your pressure set to?

 

[co04cobra]

I have a fuel lab on my 00 truck that is like the other guys. 300/200s and it never drops any pressure.


There is an old AD in front of mine though, if that matters. Are you running a lift pump?

 

[PTSUPERD]

I'd have to find all that out.

Drawn from a sump.

Pics of return here:

http://powerstrokearmy.com/forums/showthread.php?t=18249&page=10

Here is my pump and filter setup. Dont hate on my hose surplus. lol

 

[ford rules]

When's the last time the filters were changed?

 

[PTSUPERD]

When's the last time the filters were changed?

Long long time ago. Haha. But mileage wise...5k tops. I'll handle that first....

 

[ford rules]

Id change those to start with.

 

[PTSUPERD]

Yep. Rule it out. Pressure was dropping to mid 40s at WOT