what injectors or 8 injectors would u use for 500bhp?
12-10-2007, 09:01 PM
#42
Originally Posted by RScrew69
so rather than trying to source a 500inlet or going after another 8 injectors, it would be best if i just used 4 siemens black 83lbph injectors to supply enough fuel to push the car over the 500bhp bracket.
would the 83lbph black injectors be best all round to supply the fuel for 500bhp?
or is it best to use the 55lbph
would the 83lbph black injectors be best all round to supply the fuel for 500bhp?
or is it best to use the 55lbph
12-10-2007, 09:28 PM
#47
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i think the 4 siemens 83lbph injectors would be fine for what i'm after, aslong as there enough to fuel for the car at 2bar of boost max. I'm not fussed with having them look fancy or anything by seeing 8. I want to see the engine make 500bhp through my wrc 200 cosworth block which should be strong for the boost. Maybe using gt35 turbo or a gt30 depending on what will make the car nice to drive aswell.
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12-10-2007, 10:13 PM
#48
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so what benefit does 4* 1000cc injectors bring over 4 * 850cc - just extra headroom for further tuning, or is there a trade off?
27-05-2013, 09:17 AM
#49
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I'm running seimens 83lb injectors on a P8. I've had trouble getting them mapped right when they're off boost because when im on idle or just cruising at low rpm, they're over fuelling.
The engine is with Joe @ Bluesprint at the mo for some new pistons and bigger cams etc, and he said he spoke to Amed about these bigger injectors and said that he said that even when they're on the shortest pulse duration they can't get them to deliver the right amount of fuel at idle and low rpm.
One answer would be to get a nice new ECU I suppose, but I'm still saving, or swap them for smaller injectors. I think seimens do some 72lb ones. They might be up to the job for 500bhp and hopefully better for fuelling off boost
The engine is with Joe @ Bluesprint at the mo for some new pistons and bigger cams etc, and he said he spoke to Amed about these bigger injectors and said that he said that even when they're on the shortest pulse duration they can't get them to deliver the right amount of fuel at idle and low rpm.
One answer would be to get a nice new ECU I suppose, but I'm still saving, or swap them for smaller injectors. I think seimens do some 72lb ones. They might be up to the job for 500bhp and hopefully better for fuelling off boost
27-05-2013, 09:55 AM
#51
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msd live mapped my old saph on 83lb siemens on l8 no closed loop.
it was mapped to perfection no idle or cruise issues.
i had a stack wideband in the car aswell and fueling was good everywhere.
it was mapped to perfection no idle or cruise issues.
i had a stack wideband in the car aswell and fueling was good everywhere.
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