I wonder what mechanical fuelpump I should use on a 2L Drag engine?

The engine is a full dragrace engine on methanol whit a Garrett GT42RS turbo.

And here is the car it should be in

http://photobucket.com/albums/y172/BIGBHPRACING1/

It's a Ford Sierra Cosworth AWD.

Anders..

 

How about a magnafuel pump? I'm not sure why you want it to be mechanical..... I'm sure you realize that if it were mechanical, that you would have a premium time starting it every time you're racing. I'm a lot more comfortable w/ the electrical set-up.

 

But can a electric pump flow enough methanol for 1000hp?

 

a big manafuel should suit your needs. it looks like a mechanical pump, but has an electric motor on it.

http://www.jegs.com/cgi-bin/nc...r=361



on the other hand there are a bunch of people using mechanical fuel pumps with good results. we are using DSR mechanical fuel pumps on our cars. its a pita to start but, it stays idling and runs superb.

this is the fuel pump in my hand


and here it is attached to the oil pump.

 

I'd definitely go mechanical. It should only be hard to start when it hasn't been primed, and after that it'll start fine. For a drag car on methanol, it's the only way to go, they use a TON of fuel!! We use waterman pumps and have had very good luck with them.

 

previous posts on Waterman
https://honda-tech.com/zerothread?id=665208

https://honda-tech.com/zerothread?id=760756

 

Weldon has a big daddy electric pump that will suit most peoples needs.

http://www.weldonracing.com/16000a.html

 

Am I reading that chart right, 55 amps at 100psi? Holy ****!

 

Nope. It's 65amps. Sounds like a damn fire alarm also. I thought you checked it out when we were in Maryland?

 

Waterman We use the Magnaflow ProStar EFI 600 on all of our higher boost SFWD cars (on gas) and it holds fine but I'd definately stick to the mechanical for meth.

 

Still looks like 55 amps to me? Either way, that's a ton of current draw for a pump! I've seen one on a car, but never actually worked with one or heard one run. You'd need to run like 4ga. wire to that damn thing!

 

what kind of pressure do you see if any while cranking the car with the mechanical pumps ????

we get 20 psi while priming the car.

but the damn car wont start for the life of it, if we dont pour some gas down the plenum. maybe a stonger battery to spin the starter faster????

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">Still looks like 55 amps to me?</TD></TR></TABLE>

Yup, I'm retarded.

 

yeah, it helps to have a strong battery when spinning a mechanical fuel pumped engine. 20 lbs pressure should be enough to start the car however.

 

I once had the Big magnafuel pump worked okay only thing is i dont run an alternator and that pumps draws some mad current.. had one run where the battery didnt get a good charge and pump didnt produce what it would have at 16V .. destroyed a motor.. I should have takin tony1's advise sooner and started off with the waterman in the first place would have cheaper the destroying an engine.
I would get a waterman the first time and not have to worry later..
I bought mine from Earl by the way!..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by earl &raquo;</TD></TR><TR><TD CLASS="quote">yeah, it helps to have a strong battery when spinning a mechanical fuel pumped engine. 20 lbs pressure should be enough to start the car however.</TD></TR></TABLE>

yea, but we cant spin the pump as fast as the drill can....maybe its the combo of the pump spinning slow, and on alcohol. makes it hard to start.... but what i dont get is... before we got the car tunned, the car started fine on gas.... and now it wont start for ****. maybe we should mess with the "start" tuneup a bit and see what happens.

 

Try adding more cranking fuel since the fuel pressure at cranking is lower than normal...

 

we are @ 100% cranking fuel already any other idea's?

 

do they make a mechanical pump that will bolt to the end of a peterson external oil pump?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by speedworks &raquo;</TD></TR><TR><TD CLASS="quote">do they make a mechanical pump that will bolt to the end of a peterson external oil pump?</TD></TR></TABLE>

all of the pumps (ive seen)are pretty much "universal" you will most likely have to get your oil pump modified to make it work with a mechanical fuel pump.

 

Get waterman 5.8 GPM mechanical sprint car fuel pump.Part # 200060.That's plenty..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dturbocivic &raquo;</TD></TR><TR><TD CLASS="quote">we are @ 100% cranking fuel already any other idea's?</TD></TR></TABLE>Here is a simple solution. Add an inexpensive electric fuel pump to your system. Plumb it independently to the fuel rail(s). Prime the fuel system with the pump and just shut it off once the engine fires.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by speedworks &raquo;</TD></TR><TR><TD CLASS="quote">do they make a mechanical pump that will bolt to the end of a peterson external oil pump?</TD></TR></TABLE>I understand there are adapters available to bolt a Waterman onto the front of an external oil pump. I hope to be confirming this soon.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by earl &raquo;</TD></TR><TR><TD CLASS="quote">Here is a simple solution. Add an inexpensive electric fuel pump to your system. Plumb it independently to the fuel rail(s). Prime the fuel system with the pump and just shut it off once the engine fires. </TD></TR></TABLE>

we thought about that. and came up with..........didnt want to re-do our xrp lines, as they can get expensive. and its already a "rats nest" of lines, we wouldnt want any other lines under the plenum/ on the firewall/subframe.

i belive it would be cheaper and easier, to plumb in a single fuel fogger, in the plenum. it wouldnt be anything big, so it could be hidden in the wiper cowl or something, put the pump, solenoid up there, and have a single -3 line coming out and into a fogger, or even just hook it up to a -3to1/8npt union in the plenum without the fogger. it only needs a very small amount of fuel to get the engine turned over. not sure if we would want a small fuel cell with gas only, or just draw out of our alcohol cell. gas should start alot easier.

or just go cheaper yet and spray some ether in the turbo. i always have a can incase of emergency.