Fuel for turbo..420lph in-line with 255lph?
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Fuel for turbo..420lph in-line with 255lph?
Ok Im looking at different Ideas with this fuel system. Ive narrowed down my turbo kit...ptk kit with custom intercooler, t-76,and 60lbs injectors.meth injection. Now for the fuel.. I was told for the amount of power/boost a 255 might be or might not be enough. I plan on running 10psi street/14psi at the track(with 118octane) On LS1 speed they have a bosch 420LPH inline pump that says it supported 720rwhp without leaning..I dont plan on running close to that(600..650 max) Would a 255lph intake work if it were paired with that 420lph inline pump?-Mark
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From: ..behind you with a butter knife
Re: Fuel for turbo..420lph in-line with 255lph?
the bosch 420lph pump will be trying to push fuel through the 255, the 255 is not going to help move any more volume,
this works...not for long
Boosted V8--------------255lph------------190lph intank
this will work....but not so well
Boosted V8--------------255lph------------420lph Bosch (get out of the way Mr. 255)
this works well
Boosted V8--------------------------------420lph Bosh (aahh...better now that slow pump is out of the way)
best bet
Boosted V8--------------------------------Twin 255lph Walbro intanks
this works...not for long
Boosted V8--------------255lph------------190lph intank
this will work....but not so well
Boosted V8--------------255lph------------420lph Bosch (get out of the way Mr. 255)
this works well
Boosted V8--------------------------------420lph Bosh (aahh...better now that slow pump is out of the way)
best bet
Boosted V8--------------------------------Twin 255lph Walbro intanks
Last edited by Sparkz28ss; Aug 7, 2006 at 12:19 PM.
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From: ..behind you with a butter knife
Re: Fuel for turbo..420lph in-line with 255lph?
Originally Posted by TransAm396
no..im saying physically..what would be inside the tank??
well...from what I have seen the Bosch 420 pump looks to be external, so you would have to sump the stock tank...and I see that as a total waist of time,if I was going to run a sumpped tank I would just buy the Speed inc system...it looks great and is a nice setup...but alas...its a grip,1800 bucks or so to your door...and a month later
I would run two intank walbro 255lph pumps off a y-block...about 1/2 the cost of the bosch 420 and all the fittings and what not to sump your tank
http://www.geocities.com/marc94z/twins.html
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From: Bridgewater, MA
Re: Fuel for turbo..420lph in-line with 255lph?
Originally Posted by Sparkz28ss
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Re: Fuel for turbo..420lph in-line with 255lph?
Originally Posted by RealQuick
Those are mine now
Last edited by TransAm396; Aug 7, 2006 at 01:49 PM.
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Re: Fuel for turbo..420lph in-line with 255lph?
Originally Posted by TransAm396
wanna make me one??
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Re: Fuel for turbo..420lph in-line with 255lph?
lol I was jk. So they work pretty good? Would they support my power goals? Also..I can use the stock lines and everything? Would you be able to give me part numbers on what I needed? (and where to get em)
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From: ..behind you with a butter knife
Re: Fuel for turbo..420lph in-line with 255lph?
Originally Posted by TransAm396
lol I was jk. So they work pretty good? Would they support my power goals? Also..I can use the stock lines and everything? Would you be able to give me part numbers on what I needed? (and where to get em)
there was a thread with all the part numbers and where to get them...I look this morn for it when I posted the link to Marcs site...it should be around some place.
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Re: Fuel for turbo..420lph in-line with 255lph?
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From: Breese, IL
Re: Fuel for turbo..420lph in-line with 255lph?
They're a lot easier to build than you think... Stock lines would be good to 600-650rwhp. Just make sure to cut off the section of hard line where it goes from 3/8" to 5/16" inside the tank. That's a major restriction. You'll want 3/8" all the way through.
If you do decide to go with aftermarket lines, add about $750 to your budget for lines, fittings, hose ends, etc, and fittings welded to your fuel rails (-8an unions work great for this).
As a side note, the biggest fear in a fuel system is loss of pressure at WOT. Since I'm running a Delteq with an MSD DIS-4, I used a nitrous fuel pressure safety switch connected to the kill line of the MSD box. I currently have it set just below the base fuel pressure... Granted, a lean condition and some detonation can occur with fuel pressure above the base fuel pressure at high boost. This doesn't take all the threats away, but it's one more step towards a perfect safety system.
If you do decide to go with aftermarket lines, add about $750 to your budget for lines, fittings, hose ends, etc, and fittings welded to your fuel rails (-8an unions work great for this).
As a side note, the biggest fear in a fuel system is loss of pressure at WOT. Since I'm running a Delteq with an MSD DIS-4, I used a nitrous fuel pressure safety switch connected to the kill line of the MSD box. I currently have it set just below the base fuel pressure... Granted, a lean condition and some detonation can occur with fuel pressure above the base fuel pressure at high boost. This doesn't take all the threats away, but it's one more step towards a perfect safety system.
