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Injectors *HELP* 

 

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 Post subject: Injectors *HELP*
Posted: Wed Mar 30, 2005 1:58 pm 
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hi,

755 blue tops
do you know anything about these injectors?

im looking at buying a recon set of 8 for $200, there out of a commie, but i have a feeling that they are the magna 4cyl injectors. Or are they the same?

Aiming to run about 250rwhp of these, hopefuly with ease.


please help!!!!

 

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Last edited by SVO XR6 on Wed Mar 30, 2005 9:12 pm, edited 2 times in total.

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Posted: Wed Mar 30, 2005 2:14 pm 
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Bosch?

Think they may still be 19 pounders mate:

http://carsoft.co.il/page3/Electronic%20Fuel%20Injector(EFI)%20Flow%20Data%20Table.htm

(search for 775 in the part numbers)

Edited because i'm special. [hehe]

 

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Posted: Wed Mar 30, 2005 3:32 pm 
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the blue tops are used in HSV's and 4cyl magna's.

 

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Posted: Wed Mar 30, 2005 4:19 pm 
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yeah, i found that they are form thoes cars....

hmm, i was alwasy told they flowed more

*scrtaches head

what number is the 6 cyl injectors?

 

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Posted: Wed Mar 30, 2005 4:27 pm 
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i cant find the 19lb 6 cyl falcon injectors on that table

289 150 790

 

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Posted: Wed Mar 30, 2005 4:28 pm 
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Dunno... what's standard falc fuel pressure?

775's are 19# @ 48psi.... pressure seems a bit high to me, which would suggest they actually flow less than a stock falc item.

I thought we were somewhere in the 36psi range for std fuel pressure.

 

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Posted: Wed Mar 30, 2005 4:39 pm 
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im not sure hey

not forgetting i have a XR pump

 

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Posted: Wed Mar 30, 2005 4:54 pm 
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Part Number 0-280-150-790
lbs/hr 18.15
cc/min 190.8
PSI -
BARS -

.42 BSFC - Est. HP
80% 34.6
95% 41.1

.47 BSFC - Est. HP
80% 30.9
95% 36.7

.52 BSFC - Est. HP Duty Cycle
80% 27.9
95% 33.2

.57 BSFC - Est. HP Duty Cycle
80% 25.5
95% 30.3
Impedance High
Application Ford 6-3.9, 6-4.0l

 

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Posted: Wed Mar 30, 2005 4:59 pm 
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so really there is f**k all in it...?

 

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Posted: Wed Mar 30, 2005 5:03 pm 
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SVO XR6 wrote:
so really there is f**k all in it...?


The potty mouth adds nothing, but I came to a similar conclusion. :wink:

Seems the 775s are good for a couple of extra hp each but noting that's at higher fuel pressure.

 

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Posted: Wed Mar 30, 2005 8:14 pm 
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f**k, that s**t.
why f**k bother???

:p

any other cheep alternatives?

 

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Posted: Wed Mar 30, 2005 9:13 pm 
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775's will do 240-250rwhp max, stock Falcon 6's will not do this power.

You are better off looking for Mazda RX7 ser 4 or 5 injectors (50lb), or Skyline GTR injectors (40lb). You should be able to pick up a set for about $300 or less. There is also a guy in Toowoomba who hi-flows VN V6 injectors for $75ea, they end up being like brand new. He flows and matches them anywhere up to 50lbs.
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Posted: Wed Mar 30, 2005 9:14 pm 
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would it be rite in me saying im after 55hp per injector?
6x55=330hp
330fwhp= roughly 250rwhp?

and the the blue tops are only 36hp@80%duty???

 

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