fuel system question
#212548
02/03/09 12:15 AM
02/03/09 12:15 AM
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Joined: Feb 2003
Posts: 1,523 Oakley CA
69charger440_6pa
OP
pro stock
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OP
pro stock
Joined: Feb 2003
Posts: 1,523
Oakley CA
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So I was going to upgrade my fuel system starting this weekend and I had a question.
Are any of you guys running 10's still unsing a factory fuel tank and pickup? I really dont want to run a fuel cell, I know that they are better but I want to keep things looking kinda factory.
Anyways what is the stock pick up good for? I am about 90% sure mine is a 3/8 feed. Do I need to go to a 1/2"? Is there a way I can modify this pickup? Weld a -10 or -8 fitting to it and a 1/2 pipe to sit in the fuel?
Oh motor makes about 600-620hp est.
As far as the rest of the system I was thinking -8 to the pump (havnt decided yet) -8 to a regulator mounted either on the firewall or apron, then 2x -6 to the 950HP and a -6 return line. Are these line sizes OK?
Sorry about all the questions and thanks alot!
1969 Charger R/T under construction 2014 Ram 3500 Cummins 2006 Corvette Z06 2015 Corvette Z06 2014 BMW M5
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Re: fuel system question
[Re: 69charger440_6pa]
#212551
02/03/09 01:07 PM
02/03/09 01:07 PM
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Joined: Aug 2003
Posts: 43,303 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,303
Bend,OR USA
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I would use a 1/2 inch pick up in the tank and to the pump, 1/2 inch return, two #6s to the carb. is good. The #6 return will probally be okay, depending on the pump you use. I use a Magnafuel 300 pump on my Duster with a stock tank and a #10 from the bottom of the tank to the filter and to the pump, #8 return line welded into the tank in the stock location from the pump, #8 to the four port regulator mounted on the elephant ears(two piece motor plate) and three # 6 to the tri power carbs. I had a Magnefuel 275 pump on the car at first when the motor made 612 hp and I had to switch it to the 300 when I upgraded the heads, compression and increased the C.I. a little, this was detected by the Innovate LM1 showing the motor going lean at WOT I had treid to fatten up the jets and the AFR remained the same
Last edited by Cab_Burge; 02/03/09 01:08 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: fuel system question
[Re: Cab_Burge]
#212552
02/03/09 04:59 PM
02/03/09 04:59 PM
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Joined: Feb 2003
Posts: 1,523 Oakley CA
69charger440_6pa
OP
pro stock
|
OP
pro stock
Joined: Feb 2003
Posts: 1,523
Oakley CA
|
so let me ask this. I really dont want to but a new sending unit. Has anyone tried to modify the stock pickup? I was thinkin I could use some 1/2" or 5/8" aluminum hard line for a pickup, then a hardline to AN fitting, then a AN fitting threw the sending unit. Return would just be a AN fitting secured to the sending unit.
Or could I just drill a few holes on the fuel tank for some AN fittings?
1969 Charger R/T under construction 2014 Ram 3500 Cummins 2006 Corvette Z06 2015 Corvette Z06 2014 BMW M5
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