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8 injectors v's more up to date larger injectors???

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Old 02-04-2007, 09:57 AM
  #41  
Rod-Tarry
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Blimey!!
Worrying Like a lot of old women, no wonder Topspeed runs are out of fashion, you guys would be near to collapse with worry.
I have 4 injectors, one pump & 28 Topspeed runs to prove they work.
Old 02-04-2007, 09:59 AM
  #42  
GARETH T
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just because they are working fine,, doesnt mean there cant be gains to be made
Old 02-04-2007, 10:00 AM
  #43  
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Martin...as said AFR is the real indicator....

I assume you think fuel pressure gauges are wank them?
Old 02-04-2007, 10:01 AM
  #44  
GARETH T
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Originally Posted by Bosch Dealer

I assume you think fuel pressure gauges are wank them?
he didnt say that did he? i love the way you twist the conversation
Old 02-04-2007, 10:02 AM
  #45  
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Originally Posted by martin-reyland
You mong, you could have a pump on its last legs (or have low voltage)and still make decent pressure at idle..
Absolutely correct, IME pumps never have a problem at idle while they are still running, no matter how shite the wiring or fecked the pump is, its when you ask them to deliver flow (rather than merely pressure) that you get the issues, but phil isnt good at telling the difference between flow and pressure on anything it seems
Old 02-04-2007, 10:36 AM
  #46  
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Originally Posted by Chip-3Door
Originally Posted by martin-reyland
You mong, you could have a pump on its last legs (or have low voltage)and still make decent pressure at idle..
Absolutely correct, IME pumps never have a problem at idle while they are still running, no matter how shite the wiring or fecked the pump is, its when you ask them to deliver flow (rather than merely pressure) that you get the issues, but phil isnt good at telling the difference between flow and pressure on anything it seems
if the flow is less than required,then the pressure will drop surely ?
Old 02-04-2007, 10:39 AM
  #47  
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Originally Posted by lloyd
Originally Posted by Chip-3Door
Originally Posted by martin-reyland
You mong, you could have a pump on its last legs (or have low voltage)and still make decent pressure at idle..
Absolutely correct, IME pumps never have a problem at idle while they are still running, no matter how shite the wiring or fecked the pump is, its when you ask them to deliver flow (rather than merely pressure) that you get the issues, but phil isnt good at telling the difference between flow and pressure on anything it seems
if the flow is less than required,then the pressure will drop surely ?
Yes exactly, and at idle the flow required is TINY, hence it rarely results in a pressure drop, where as on boost the flow required is relatively huge, so even the slightest fault will manifest as a pressure drop.
Old 02-04-2007, 10:56 AM
  #48  
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Personally i've seen big power evos run 8 injector setups using 8 standard injectors.

Run on 4 for startup and low duty cycle then switch the other 4 on for higher duty cycle/high boost applications.

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