Rotary Car Performance General Rotary Car and Engine modification discussions.

mechanical fuel pump

Thread Tools
 
Search this Thread
 
Old Mar 8, 2009 | 06:27 AM
  #1  
1nastyturboII's Avatar
Thread Starter
Full Member
Tenured Member 15 Years
 
Joined: Aug 2003
Posts: 198
Likes: 0
From: NYC
NY mechanical fuel pump

anyone running mechanical fuel pump?
Reply
Old Mar 13, 2009 | 10:31 PM
  #2  
ultimatejay's Avatar
Eats, Sleeps, Dreams Rotary
Tenured Member 10 Years
iTrader: (1)
 
Joined: Nov 2006
Posts: 4,148
Likes: 4
From: California
I'm not but most of the top high horsepower drag racers are, especially when using Alcohol. Other than that, there is no need to use one.
Reply
Old Mar 16, 2009 | 08:21 AM
  #3  
killahrx7's Avatar
dyno queen potentials
 
Joined: Oct 2007
Posts: 445
Likes: 1
From: ga
i have one (aeromotive). if you use it you will need to get a fuel cell though.
Reply
Old Mar 16, 2009 | 01:26 PM
  #4  
Chaotic_FC's Avatar
Banned. I got OWNED!!!
 
Joined: Dec 2007
Posts: 946
Likes: 0
From: paradise Florida
I will be using one.
Reply
Old Mar 18, 2010 | 02:17 PM
  #5  
Erdin's Avatar
Water Injection Specialist
Tenured Member 15 Years
 
Joined: Apr 2003
Posts: 479
Likes: 0
From: UK
Does the fuel cell have to be in the front?
Reply
Old Mar 18, 2010 | 11:45 PM
  #6  
13B-RX3's Avatar
7s before paint!!!
iTrader: (2)
 
Joined: Aug 2003
Posts: 3,814
Likes: 0
From: Philly/Texas
I run one as well.
Reply
Old Mar 19, 2010 | 01:30 AM
  #7  
Erdin's Avatar
Water Injection Specialist
Tenured Member 15 Years
 
Joined: Apr 2003
Posts: 479
Likes: 0
From: UK
Originally Posted by 13B-RX3
I run one as well.
Hi mate what pump are you using?
Could you use it on the street?
By the way i know your using methanol, il also be using methanol but i would like to use it for the 3rd stage of injection on my setup.
Also do you think it would matter if the fuel cell is in the boot as im thinking under hard acceleration the pump may not be able to draw the fuel, if the fuel cell is too far from the pump?
Reply
Old Mar 19, 2010 | 02:02 AM
  #8  
13B-RX3's Avatar
7s before paint!!!
iTrader: (2)
 
Joined: Aug 2003
Posts: 3,814
Likes: 0
From: Philly/Texas
I run the regular Aeromotive pump. I am currently running 12 1600cc injectors and it had no problem keeping up with them on the dyno. I run my cell in the rear and am also concerened with starving the pump. From what i have read is that you can get away with a rear mounted cell down to about a 1.2X 60'. Then you start having problems. I am definitely going to test this theory, hopefully the combination of -12 line and such a short run will really help. We'll see!
Reply
Old Mar 19, 2010 | 02:34 AM
  #9  
Erdin's Avatar
Water Injection Specialist
Tenured Member 15 Years
 
Joined: Apr 2003
Posts: 479
Likes: 0
From: UK
Originally Posted by 13B-RX3
I run the regular Aeromotive pump. I am currently running 12 1600cc injectors and it had no problem keeping up with them on the dyno. I run my cell in the rear and am also concerened with starving the pump. From what i have read is that you can get away with a rear mounted cell down to about a 1.2X 60'. Then you start having problems. I am definitely going to test this theory, hopefully the combination of -12 line and such a short run will really help. We'll see!
Thankyou very much Sir
Reply
Old Mar 19, 2010 | 08:36 AM
  #10  
NewbernD's Avatar
Tequila? ..it's like beer
Tenured Member 20 Years
iTrader: (1)
 
Joined: Mar 2001
Posts: 1,124
Likes: 0
From: Woodbine, MD
Originally Posted by 13B-RX3
I run my cell in the rear and am also concerned with starving the pump.
Could you feed the mechanical pump with a low pressure, high volume lift pump?
Reply
Old Mar 19, 2010 | 09:44 AM
  #11  
13B-RX3's Avatar
7s before paint!!!
iTrader: (2)
 
Joined: Aug 2003
Posts: 3,814
Likes: 0
From: Philly/Texas
It would have to be very high volume. Most of the pumps that i have found that can do it cost twice the price of a mech pump and will do the job by them self.
Reply
Old Mar 19, 2010 | 10:33 AM
  #12  
NewbernD's Avatar
Tequila? ..it's like beer
Tenured Member 20 Years
iTrader: (1)
 
Joined: Mar 2001
Posts: 1,124
Likes: 0
From: Woodbine, MD
Originally Posted by 13B-RX3
It would have to be very high volume. Most of the pumps that i have found that can do it cost twice the price of a mech pump and will do the job by them self.
Your answer surprised me so I looked up the specs. Gave me a whole new respect for belt driven pumps. 10GPM @ 100 PSI is complete insanity.
Reply
Old Mar 21, 2010 | 04:48 AM
  #13  
13B-RX3's Avatar
7s before paint!!!
iTrader: (2)
 
Joined: Aug 2003
Posts: 3,814
Likes: 0
From: Philly/Texas
Originally Posted by NewbernD
Your answer surprised me so I looked up the specs. Gave me a whole new respect for belt driven pumps. 10GPM @ 100 PSI is complete insanity.

12 1680cc injectors need a lot of fuel
Reply
Old Mar 21, 2010 | 05:43 AM
  #14  
Erdin's Avatar
Water Injection Specialist
Tenured Member 15 Years
 
Joined: Apr 2003
Posts: 479
Likes: 0
From: UK
what injector duty did you get to with 12 1680 injectors?
Reply
Old Mar 21, 2010 | 03:08 PM
  #15  
13B-RX3's Avatar
7s before paint!!!
iTrader: (2)
 
Joined: Aug 2003
Posts: 3,814
Likes: 0
From: Philly/Texas
honestly i don't know, i didn't tune the car.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
Jul 1, 2023 04:40 PM
Rotospectre
New Member RX-7 Technical
3
Mar 28, 2018 03:33 PM
ChrisRX8PR
Single Turbo RX-7's
21
Oct 18, 2015 04:01 PM




All times are GMT -5. The time now is 08:53 PM.