Ok so I know we can all spend about 500.00 or more and get the dual setup but for now how much power are people making on a single walbro fuel pump? Please list your Fuel type your using, Turbo, Boost, Do you have an upgraded FPR or fuel rail? Thanks much and good luck, may your car never run really lean. Let the fuel flow.

 

526 on a 35r.

we'll see how much i push on the HTA86...

stock fuel lines, rail, FPR. fuel i use is 100 oct delta sonic race gas, boost was at 30psi

this is on PTE 1000cc injectors, my duty cycle was at 86% IIRC

 

i recommend searching for buschurs writeup on the stock fuel system and when he developed his double pumper. A ton of useful info in there.

side note :IMO is the fuel system something you want nearly maxed out?? it would just be safer to do a double pumper if its a concern and no im not just trying to stimulate our economy.......cuz rebuilding a blown motor would help more haha

 

I have read everything about Buschur and others trust me, but I also know that most everyone these days is saying just buy the double almost no matter what. I am going to be sticking with just a single for now and that's what I want to hear more about. Seeing what others are doing will help many understand what is the limits of just the single or help them understand what power they might make or what they need to do to hit other power levels. For those selling the double this might help sales for those that are pushing the limits. Anyone is more than welcome to chime in. I do agree very much don't max out your system. Thanks for the info

 

I got 600w out of mine with just a fuel rail and 1000cc's

 

I got 565whp with the red on 93 + meth but was runing out of fuel with 950s injectors

 

Depends on which fuel you're using. I've seen in excess of 500 whp on e85, but that's really the limit. 550 tops I'd imagine before you start hitting fuel cut with e85, not sure on pump gas it's probably a bit higher.

 

WE trapped 142 on a single pump with c-16 Also had a rail and a STM FPR kit.


-Em

 

I got 482whp on a DynoJet on E-85 @ 21lbs....35R with RC 1000cc injectors, single Walbro and Fuelrail.

 

I made 520whp on 1000cc's and 1 walbro. IDC's were at 97%. I went Full Blown and haven't looked back!

 

i wasn't saying to get buschurs or something. I meant search for his thread he did a big writeup about the fuel system in these cars. You can make more than 5xxwhp with a single warlboro but then the pump can't keep up so you kinda compensate for the dropping fuel pressure with bigger injectors and runnign them harder. I am in the same boat right now as I will be looking to get all I can out of just one pump, still knowing that a double pumper may be another supporting mod I need to run my setup at full potential.

 

Ya I am in that boat too, got 1250cc injectors and just one Walbo, I think the meth will help allot but still later on I am sure I will need more Fuel. If I am right Buschur said he made over 600 on one High output Walbro. I hope I will be around the 550 mark or so. heck 500 is enough to kill ya. Good luck with it

 

Thanks for the input all all around for all you drinkers, I dont drink so more for you.

 

Has anyone tried to use a kenne bell boost-a-pump? they work great! i got one i am about to install on my car. It is a voltage amplifier that boosts the fuel pump voltage from 12-13 all the way to 18+ volts on the street version and 20+ volts on the competition version. I know what you thinking... This would burn the pump out. I talked to the head tech at kenne bell and he says that the pump actually last longer because as voltage goes up amps go down. Not only that but the unit is activated by a pressure switch so it only ups the fuel pump voltage under boost. I figure that this will up the pump capacity around 25-30%. I tune for some mustang guys and this product seems to work really well!
There are many other advantages to this as well. The biggest one is that with "BIG" pumps there is what is know as fuel octane loss. i am going to quote this straight from kenne bell.

" If at all possible, avoid fuels that contain alcohol as an octane booster. Alcohol,being more volatile than gas,tends to evaporate and lower fuel octane.Large in tank pumps re-circulate excess fuel at idle ,part throttle and cruise. This results in hotter fuel and increases alcohol evaporation (octane reduction) from not only the recirculation but the continuous pressureizing and depressureizing of the fuel. This is why some companys like ford and GM have gone to returnless fuel systems. To reduce fuel octane loss!"

I believe this unit sells for about $250 and i think its a great way to get that extra out of your current 255 fuel pump.

http://www.kennebell.net/accessories...boostapump.htm

 

That looks very cool, I would like to see someone test one out.