How much spray on forged internals

**Eagle** · 08-03-2009, 04:04 PM

I've got the forged internals and solenoids to push past my previous 150HP shot. I can tune my own car, and follow the 2*/50HP rule. Usually aim for about 11.8 AFR.

Currently I'm running the racetronix intank, lucas 42#, and stock rails. TR55 plugs. Heater w/pressure switch and a window switch is all I ever used w/the old 150HP setup. NO purge.

I have everything I need to run 2 stages on HSW nozzles, if that makes your choice any different.

How big can I go? Does 250HP make no sense on a single shot?

Thanks in advance folks.

**JwMonE99** · 08-03-2009, 07:56 PM

I think you would need new plugs more then anything, get the NGK TR56s

**Eagle** · 08-03-2009, 08:03 PM

Plugs will get set one or two steps colder for sure.

I'm more curious on how to set this up. I should be able to do 200HP on a single shot through the HSW kit, but I don't know if that's wise or not...

Maybe I'll just call them tomorrow.

**bills98ta** · 08-04-2009, 03:38 AM

The internals will be fine, but you might need a dual fuel pump setup. I just found this out... My 1'st shot is a 150 dry, then I added a 2'nd 200 shot... Felt good for 3 seconds, till it ate the plugs... Oh ya, never run super / platinum plugs. They should be able to melt, before the pistons !!! I run auto-lite 103's @ .040 gap

**Eagle** · 08-04-2009, 04:07 AM

Which dual pump are you going with?

**bills98ta** · 08-04-2009, 04:10 AM

I already have one walbro 255, so I figured I'd add another...

**Eagle** · 08-04-2009, 06:04 AM

In tank, or external? I've got an intank unit already also.

Have you upgraded your stock fuel lines to increase flow, or are you just getting the 2nd pump for redundancy?

**bills98ta** · 08-04-2009, 03:35 PM

I'm told that the fuel line is good ( -6an ) and to Y in the second pump in the tank, using relays off the battery, with the stock fuel pump wire energizing the relays...

**mrr23** · 08-04-2009, 03:54 PM

i've been 200 on a completely stock motor. you'll need to run a BP7EFS or autolite 103. on my 408, i've been 663 rwhp with a single 255lph intank walbro and a 250 shot.

**bills98ta** · 08-04-2009, 03:59 PM

Originally Posted by mrr23

i've been 200 on a completely stock motor. you'll need to run a BP7EFS or autolite 103. on my 408, i've been 663 rwhp with a single 255lph intank walbro and a 250 shot.

I tried 350 total, didn't work... You must be very close to your pumps limits !
What timing are you pulling ?

**Eagle** · 08-04-2009, 04:00 PM

Originally Posted by mrr23

i've been 200 on a completely stock motor. you'll need to run a BP7EFS or autolite 103. on my 408, i've been 663 rwhp with a single 255lph intank walbro and a 250 shot.

Oh yea, that's what I'm talking about. 250 shot, 1 stage? All @ once? 1st gear lock out?

**mrr23** · 08-04-2009, 05:26 PM

Originally Posted by bills98ta

I tried 350 total, didn't work... You must be very close to your pumps limits !
What timing are you pulling ?

21* fuel pressure was around 45 psi.

**mrr23** · 08-04-2009, 05:26 PM

Originally Posted by Eagle

Oh yea, that's what I'm talking about. 250 shot, 1 stage? All @ once? 1st gear lock out?

1 stage direct port. all at once. in first gear.

**Eagle** · 08-04-2009, 05:47 PM

Oh snap! Hrmmm....

**bills98ta** · 08-04-2009, 06:04 PM

Originally Posted by mrr23

21* fuel pressure was around 45 psi.

45 psi is cutting it a little close... With my 150 shot, I still hold close to 58 lb. When I flipped the switch for the extra 200 on top, I didn't notice the fuel presure guage... Just tried to keep the car between the lines...

**Eagle** · 08-04-2009, 06:10 PM

Originally Posted by bills98ta

45 psi is cutting it a little close... With my 150 shot, I still hold close to 58 lb. When I flipped the switch for the extra 200 on top, I didn't notice the fuel presure guage... Just tried to keep the car between the lines...