Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

Injector question 50Lb, wich one?

Thread Tools
 
Search this Thread
 
Old 04-13-2005, 11:24 AM
  #1  
Gulpilen
Advanced
Thread Starter
 
Gulpilen's Avatar
 
Join Date: Feb 2005
Location: Sweden
Posts: 92
Received 1 Like on 1 Post
Default Injector question 50Lb, wich one?

Im going to change injectors and have tried to get all info before buying, but I cant find what I want!

I will try to have a 70% use of the injector.
The original have high ohm is that important for the new injectors?
The size I want is preferable 50Lb/Hr.
Original is Bosch 0280150556 19Lb/Hr (if a remember right now).
Wich one will fit at affordable price?

Im will try to get a lot of power up to 10 Psi with stock piston (9.5:1 Belgian 88) inside.

/Jonas
Old 04-13-2005, 11:42 AM
  #2  
tammons
Pro
 
tammons's Avatar
 
Join Date: Mar 2002
Location: S. Florida
Posts: 608
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Gulpilen
Im going to change injectors and have tried to get all info before buying, but I cant find what I want!

I will try to have a 70% use of the injector.
The original have high ohm is that important for the new injectors?
The size I want is preferable 50Lb/Hr.
Original is Bosch 0280150556 19Lb/Hr (if a remember right now).
Wich one will fit at affordable price?

Im will try to get a lot of power up to 10 Psi with stock piston (9.5:1 Belgian 88) inside.

/Jonas
Are you trying to drive 50# injectors with the stock computer ?? I dont think that will work. Maybe 24 or a little bigger if you reduce the idle and running fuel pressure, but I have never tried it.

I cant remember how it works exactly, but I think a high ohm injector will burn out a low ohm driver, or that may be opposite. Its probably best to stick with the same.

I have run 12 psi with 8 45# injectors so you should be okay at 10.

Personally if I were trying to save the stock injection, ignition setup, I would run a set of extra injectors with a seperate driver or a rising rate FP regulator.
Old 04-13-2005, 11:59 AM
  #3  
Tony
Addict
Lifetime Rennlist
Member
 
Tony's Avatar
 
Join Date: May 2001
Location: Las Vegas
Posts: 14,676
Received 585 Likes on 306 Posts
Default

Try summit racing. Many have been using the FOrd Motorsport injectors. Why you need 50# im not sure but i hope you can put them to good use!
42# seems to be the highest people have used as far as Ive seen, and then there are some idle issues...same for the 30# but not nearly as pronounced.
Once your MAF sees "X" voltage (5V i think) you will be full 100 % duty cycle no matter what you put in there...50# or 100# injectors. Thats the way i understand it works atleast.
Old 04-13-2005, 12:00 PM
  #4  
Gulpilen
Advanced
Thread Starter
 
Gulpilen's Avatar
 
Join Date: Feb 2005
Location: Sweden
Posts: 92
Received 1 Like on 1 Post
Default

Stock computer but with piggyback with up to 50% down and up due to rpm. Dyno with broadlambda. 928gt FP. Same igniton though as original.

I'll stick to high Ohm then. How much is original?

/Jonas
Old 04-13-2005, 12:22 PM
  #5  
Bill Ball
Under the Lift
Lifetime Rennlist
Member
 
Bill Ball's Avatar
 
Join Date: Mar 2002
Location: Buckeye, AZ
Posts: 18,647
Received 49 Likes on 36 Posts
Default

14.5 ohms. I believe any of these will work. I don't see 50#, however.

http://store.summitracing.com/defaul...1&autoview=sku
Old 04-13-2005, 02:20 PM
  #6  
Gulpilen
Advanced
Thread Starter
 
Gulpilen's Avatar
 
Join Date: Feb 2005
Location: Sweden
Posts: 92
Received 1 Like on 1 Post
Default

Ok.

I found these injectors on ebay...42 lbs ford racing.
Will these fit and work with my ECU (with piggyback)?
http://cgi.ebay.com/ebaymotors/ws/eB...category=33554

/Jonas
Old 04-14-2005, 10:03 AM
  #7  
John Veninger
Addict
Lifetime Rennlist
Member
 
John Veninger's Avatar
 
Join Date: May 2001
Location: New Jersey
Posts: 3,933
Received 40 Likes on 26 Posts
Default

FYI- 36lbs injectors support a stroker making 545hp to the ground w/a 75% duty cycle.
Old 04-14-2005, 11:56 AM
  #8  
Scott M.
Rest in Peace
Rennlist Member
 
Scott M.'s Avatar
 
Join Date: Apr 2003
Location: Penn State
Posts: 2,240
Likes: 0
Received 0 Likes on 0 Posts
Default

Jonas;

I'm running 42# RC Racing injectors at 60 psi on my 6.5L stroker. That is about as high as one will ever need on a 928 motor... and that is likely overkill.

Scott



Quick Reply: Injector question 50Lb, wich one?



All times are GMT -3. The time now is 10:18 PM.