Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

63 lb/hr Siemens High-Z Fuel Injector at 90+psi?

Thread Tools
 
Search this Thread
 
Old 07-07-2009, 11:10 PM
  #1  
TECH Resident
Thread Starter
 
MNC5's Avatar
 
Join Date: Nov 2001
Location: Twin Cities
Posts: 862
Likes: 0
Received 0 Likes on 0 Posts

Default 63 lb/hr Siemens High-Z Fuel Injector at 90+psi?

I need to run 90+ psi to get these to work with E85 is it possible? Or will that much pressure screw them up? I'd have to run a base pressure of over 70lbs and still make it idle.
Old 07-07-2009, 11:26 PM
  #2  
TECH Resident
Thread Starter
 
MNC5's Avatar
 
Join Date: Nov 2001
Location: Twin Cities
Posts: 862
Likes: 0
Received 0 Likes on 0 Posts

Default

With a Magnafuel 4301 pump.

http://www.magnafuel.com/products/efi/pumps/MP-4301.htm

The problem is height, with the Magnason Jackshaft unit I can't raise the fuel rail more than 1/4" on the drivers side without running into the bypass canister. This injectors are less that 2" tall
Old 07-08-2009, 03:22 AM
  #3  
LS1TECH Sponsor
iTrader: (2)
 
Racetronix's Avatar
 
Join Date: Mar 2002
Location: A Racetronix dealer near you...
Posts: 2,022
Received 23 Likes on 18 Posts

Default

That is a bit too much pressure to be running the FI114962 injector reliably.
You should consider stepping up to 80's or better yet some low-z injectors with a driver module.
Unfortunately this is the highest flowing injector this size.
There may be an 80lb version of this injector but nothing in the immediate future.
__________________

Manufacturer / Distributor of Automotive Fuel Systems, Components & Electronics

Please support a Racetronix dealer near you for personalized service.

>WEB SITE<
Old 07-17-2009, 10:47 AM
  #4  
FormerVendor
 
qqwqeqwrqwqtq's Avatar
 
Join Date: Dec 2001
Location: WWW.SPEEDINC.COM
Posts: 2,444
Likes: 0
Received 2 Likes on 2 Posts

Default

I have run the taller siemens 60's at 73psi base pressure and 20psi boost on gasoline and never had any issues with it though I prefer to just run a larger injector.
Old 07-17-2009, 10:02 PM
  #5  
TECH Resident
Thread Starter
 
MNC5's Avatar
 
Join Date: Nov 2001
Location: Twin Cities
Posts: 862
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by INTMD8
I have run the taller siemens 60's at 73psi base pressure and 20psi boost on gasoline and never had any issues with it though I prefer to just run a larger injector.
Good to know, thanks. FICINJECTORS is helping me out with 80's.. And with my HP goal it should put me right at 80% at 75psi



Quick Reply: 63 lb/hr Siemens High-Z Fuel Injector at 90+psi?



All times are GMT -5. The time now is 11:53 AM.