c20kenny
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Registered: 12th Jun 08
Location: Cumbria
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what presure are they set to? and would there be any need to change the pressure?
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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ask in the right forum...
and what are you actually asking.... ?
Are you asking if you need one? If fitting one would make a difference?
By 'cossie' are you meaning from a Ford cosworth or sorts or a new Cosworth part?
If you have to ask if think the answer will be ' you dont need it '
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Nic Barnes
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Registered: 5th Apr 04
Location: nowhere near ginger people
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quote:
Originally posted by AK
ask in the right forum...
and what are you actually asking.... ?
Are you asking if you need one? If fitting one would make a difference?
By 'cossie' are you meaning from a Ford cosworth or sorts or a new Cosworth part?
If you have to ask if think the answer will be ' you dont need it '
as in weber fpr fitted to a cossie. probably the better adjustable one you can buy for the price of them even 2nd hand.
no idea what they are set to. use gauge and set it to where ever your current one is. unless you actually need to be able to adjust the pressure, id keep std one on.
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c20kenny
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Registered: 12th Jun 08
Location: Cumbria
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sorry a seen on here that there better than the power boost one a have so a got one and now am just makin sure as a dont want to knacker my engine by not having the correct pressure.
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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but why do you need greater fuel pressure? (i.e do you really need it)
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Col004
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Registered: 25th Jun 03
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There set at 3.5 bar std.. also fully adjustable.
[Edited on 28-11-2010 by Col004]
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c20kenny
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Registered: 12th Jun 08
Location: Cumbria
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it for a c20let with a hybrid turbo and stage two chip set with xe inlet cam so just trying to find out if it's needed to make the most of them mod's
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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are you needing more fuel?
The only reason I would swap to an adjustable FPR now is if...
a: standard one was buggered
b: my injectors were just a fraction too small, or they were operating at around 85%+ peak
c: I needed greater rail pressure for some reason.
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c20kenny
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Registered: 12th Jun 08
Location: Cumbria
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when the engines under load it splutters and missies even when just building up the revs. so i dont know if its getting enough fuel.
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Col004
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Registered: 25th Jun 03
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std c20let 3 bar reg is right for stage 2 with std injectors (yellows). so ditch the power boost valve you have and fit a std reg to the rail. you only need to ajust the fuel pressure at stage 3 or above and the only way to do this is with a wideband on the road or on the rollers. playing with fuel pressure blind without the wideband will completly wreck the engine mate.
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SportBoy
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Registered: 5th Oct 01
Location: Retford, Nottinghamshire
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probably spark plugs if its spluttering, but as said a wideband gauge would be best or get it set on a rolling road before you start abusing it.
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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could also be too much fuel 
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c20kenny
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Registered: 12th Jun 08
Location: Cumbria
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thats why am i'm askin. and on mine the injectors have a blue ring so i take it there not standard. its not out on the road so a can't abuse it.
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connollygt30
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Registered: 16th Nov 08
Location: West Lothian
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My injectors have a blue ring but its an XE
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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Kenny - How on earth can anyone tell you about your fueling ONLINE?
As said above, you really need to get a wideband up the exhaust to check your fueling.
All RR's places will be able to check this on a basic power run.
Other than that I can only suggest getting a pressure gauge on the current FPR/rail you have and setting it to the standard rail pressure for your car. That is assuming you know the CC of the injectors and they are what the ECU 'thinks' they are.
[Edited on 29-11-2010 by AK]
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c20kenny
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Registered: 12th Jun 08
Location: Cumbria
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these are the injectors that are in at the mo
 if they are xe injectors will they damage to the engine in any way?
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Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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I dont think they are XE injectors.Infact i dont think they are even Vauxhall injectors.
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c20kenny
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Registered: 12th Jun 08
Location: Cumbria
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i've search'd the net with the code thats on the side of them and it comes up with nothing
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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Kenny - I dont think we can make this any simpler.
GET THE CAR CHECKED OUT.
What colour were the Saab injectors some folk use?
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c20kenny
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Registered: 12th Jun 08
Location: Cumbria
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my problem is though i'm not in a position to shell out money to get it check'd over thats why im askin on here. And i would love to get some saab reds for it but finances get in the way
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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ok... just run it with unknown fueling then...
That'll save you £50 in the short term.
Remove an injector - get it flow tested/identified.
Get a gauge to tell you the fuel pressure
get the fueling setup on a rolling road
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c20kenny
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Registered: 12th Jun 08
Location: Cumbria
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i've just found this info about the injecters
Delphi / Lucas
42 lb / hr. '009' Disc Injectors
Part Number Delphi 01D030B (Lucas old 5208009, Lucas New 621031)
Static Flow Rate: 42.29 lb/hr @ 43.5PSI (300kPa) or 320gm/min
Dynamic Flow Rate: 9.96 gm/pulse - 2.5ms pulse width and 10ms repetition rate
Coil Resistance: 15.9 Ohms / High Impedance / High-Z (No ECM driver modifications required)
is it possible to know from that if there ok for the LET or not?
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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The bosch Yellows (0280 150 420) are aprox 300cc/min, 28.9lb/hr @ 3bar
so, your injectors above seem to suggest they are a fair bit larger
[Edited on 30-11-2010 by AK]
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c20kenny
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Registered: 12th Jun 08
Location: Cumbria
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just read on a tuning page that the injectors i have are more than fine for the LET and are better than than saab reds as they flow 440cc @ less than 3 bar were as the reds flow 359cc @ 3.5 bar so thats one thing elimenated.
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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.... converted to CC/min for you....
aprox 430cc Injectors if you have the info right above
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