how much fuel?

bprumos

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Feb 4, 2009
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my goal for my truck after my build is about 700hp fuel only, and holpefully ill be able to step it up from there in the future but need a number to work with...

im gonig to get my 180 pump flowed and balalenced but im not sure how much fuel i should tell the guy to aim for? 550, 650, 750cc's of fuel, im cluless as to what i should do with it in that aspect...

i just want to be able to have enough fuel to support numbers well north of 700hp if i ever want to do so, without having to mess around with the pump a second time, cause i can always turn the pump down to tame the beast if need arises


thanks for any help
 
if you are good at choosing your combo and tuning it i dont think it would take that
 
if you are good at choosing your combo and tuning it i dont think it would take that

u always got to be better don.. LOL

I didn't meant it would take 500cc to get to that level... i just meant he would need no more than 500...

P.S. Don. please show me a diesel engine you built..
 
did ya see how brad did it?

posted pix of the outside of it when it was all together...

when i get my first diesel and rebuild it thats what you will see

lockupsandcarbs009.jpg


something like that

so do me up and show everyone how much better you are...post away

lets see it

right now i am building the turbos and the pump

i'll build a motor - dont trip

question is do you think i can wedge it into this:

27-Ford-Super-Gas-Roadster.jpg


cuz thats the plan

maybe campain it on the divisional level in the NHRA

what are your plans?

ya know what i mean, how are you planning to help the sport?
 
Tell the pump shop you want as much as they can get out of it.
 
im gonig to get my 180 pump flowed and balalenced but im not sure how much fuel i should tell the guy to aim for? 550, 650, 750cc's of fuel, im cluless as to what i should do with it in that aspect...

550 is going to be the highest you'll get out of a strong "stock" 180 pump. Stock meaning the factory pump cam and B&P's.
 
my plans are going to be for kind of an all around truck, im gonig to drive it every now again if i feel like it, mostly going to build it for the strip but i would like to pull with it every now and again. kind of everything i guess but making it streetable is gonig to be the most fun part cause its not gonig to be easy (if it will even move without billowing smoke...) but if its not im not gonig to drive it on the road cause i dont like bringing this sport any more dirt than all these other a**holes that think its cool to smoke out every single person they see so the epa can shut us down
 
Hasn't chad riley put a P-pumped 24V into a roadster like that?
 
my plans are going to be for kind of an all around truck, im gonig to drive it every now again if i feel like it, mostly going to build it for the strip but i would like to pull with it every now and again. kind of everything i guess but making it streetable is gonig to be the most fun part cause its not gonig to be easy (if it will even move without billowing smoke...) but if its not im not gonig to drive it on the road cause i dont like bringing this sport any more dirt than all these other a**holes that think its cool to smoke out every single person they see so the epa can shut us down
Just go with a 13mm pump then. A modest output 13mm made out of a 180 pump(stock cam) will make 550cc with the plate to the rear, 750cc at the front. It can be easily daily driven with no smoke problems. With twins it will make 800+ at minimum fuel.

Nice looking rig Don. I'd like to find one of those for sale to do a Diesel project.

RonA
 
If I was you i'd tell them to twist the barrels as far as they are comfortable doing and have them balance it all out. If you can afford it maybe throw a cam in the pump. You should have pleanty for what you're doing and if too much that's why they make fuel plates! Good luck.
 
my plans are going to be for kind of an all around truck, im gonig to drive it every now again if i feel like it, mostly going to build it for the strip but i would like to pull with it every now and again. kind of everything i guess but making it streetable is gonig to be the most fun part cause its not gonig to be easy (if it will even move without billowing smoke...) but if its not im not gonig to drive it on the road cause i dont like bringing this sport any more dirt than all these other a**holes that think its cool to smoke out every single person they see so the epa can shut us down


A 12mm pump at full tilt can easily be driven on the street. Some simple AFC tuning goes a long ways for tuning it to run smoke-less or to smoke less...

Like the other guys said, a 13mm pump can be street driven if you're smart about it. If you plan on rarely driving the truck and want maximum power, go 13mm $.02
 
i know, ill get a 14mm pump! :bang



but in all seriousness i think a 13 is my best bet, cause that way i have more then enough fuel if i want it and if i dont, like stated before, thats what they make fuel plates for...


but heres another good question, who should i get one from (prefferable the cheapest). i dont want to use my pump cause it has over 350,000 miles on it and id rather not use that one
 
but heres another good question, who should i get one from (prefferable the cheapest). i dont want to use my pump cause it has over 350,000 miles on it and id rather not use that one

do some quick research and you'll get 100 different answers on who to use...

Why not use your pump? I rebuilt mine with 295,000 a few months back and it looked like a new one. Bearings, cam, rollers, b&p's were all in great shape...those germans know how to design and build good pumps :rockwoot:
 
I have no first hand expeiences but have been told after several inquiries a good 12mm pump can do way over 700hp fuel only. Given the price of a slightly worked 12mm pump over a 13mm counterpart and the questionable reliability of a 13mm on the street i'd seriously consider the 12mm route. Only trying to help good luck either way.
 
some say that your 180 pump has the same cam as a 215 and better plungers

some say the 215 is better to start with cuz it has a better cam

doesnt make sense to me - if they have the same cams why do they req a diff chart for timing?

timingchart-1.jpg
 
some say that your 180 pump has the same cam as a 215 and better plungers

some say the 215 is better to start with cuz it has a better cam

doesnt make sense to me - if they have the same cams why do they req a diff chart for timing?

timingchart-1.jpg

Because of the plungers so far as I understand it.
 
well i already had considered that... but if that were the case wouldnt the difference would be linear?

equal difference all the way accross the board...

its not

so i dont see how the two pumps could be using the same cam

see what i mean?
 
well i already had considered that... but if that were the case wouldnt the difference would be linear?

equal difference all the way accross the board...

its not

so i dont see how the two pumps could be using the same cam

see what i mean?

Honestly i'm not knowledgeable enough about the plungers to tell you why the linear relationship doesn't exist but, I can see it not being linear. Check out the diagrams that exist for the 215 plungers and ask around and see for yourself.
 
i will talk to seth about it more monday

thought it would be better explained on here in case others had the same question
 
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