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Dyno Run/AFR/Fuel Pump

I personally would not go much above 15-16psi on standard injectors as you will be close to 100% duty cycle. I upgraded to 55lb injectors and am still wary of running much over 16psi. I am probably super cautious but would not run high boost without a wideband afr gauge.
 
Yeah I am aware of the duty cycle of the injectors. You really should invest in a wideband AFR. It is probably the single most useful thing on my car I think. I can't say how old the HG and injectors are. If I were to have a guess I would say the injectors at least were probably original. Can't think of a reason why they would have been changed. The car was stock until I got hold of it. I suppose I could give it a go and see wat response I get from the AFR. Just try 1 PSI increments. I don't think the K26/6 could produce more than 18 PSI anyway. Another question though if one were to upgrade to 55lb injectors I suppose you could run them safely with the existing map as their upper threshold is just greater. Or am I getting it wrong a custom remap would be required???
 
If you wanted an off the shelf solution the current Promax chipset enables you to set it for 55 lb injectors. That's what I'm using.
 
ORIGINAL: robwright

  I suppose I could give it a go and see wat response I get from the AFR.  Just try 1 PSI increments. 
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The wideband is a worthwhile addition but when you start running the injectors near their limit it wont tell you if one is under fueling a little, are you using a 3 bar FPR ?.
 
ORIGINAL: robwright

  I can't say how old the HG and injectors are.  If I were to have a guess I would say the injectors at least were probably original.  Can't think of a reason why they would have been changed.  The car was stock until I got hold of it.  I suppose I could give it a go and see wat response I get from the AFR. 
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The wideband is a worthwhile addition but when you are running the injectors near their limit it wont tell you if one injector is under fueling slightly,that's the benefit of flow matched sets, are you using a 3 bar FPR ?.
 
Pauly yes running 3 bar FPR. A must for Tial DPW. LT are you using the Lynsey reworked wastegate then?? Just out of curiosity where does on getb55lb injectors from??
 

ORIGINAL: robwright
  Just out of curiosity where does on getb55lb injectors from??
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Promax, JMG, the low impedance Siemens seem to be the plug and play option but your chips need to have a suitable map.
 

ORIGINAL: robwright

  I don't think the K26/6 could produce more than 18 PSI anyway. 
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My car couldn't hold 18 psi with the K26/6 turbocharger and that was even with a DPW hooked up to an electronic boost control. On the road it would hit 18psi by 3500rpm but almost immediately start dipping down to an eventual 12 psi by the red line. It had standard injectors with a 3 bar FPR and Guru chips and ran slightly richer than optimium as this Dyno shows

LIL5766_AFR.jpg

 
ORIGINAL: robwright

Pauly yes running 3 bar FPR. A must for Tial DPW. LT are you using the Lynsey reworked wastegate then?? Just out of curiosity where does on getb55lb injectors from??
Click to expand...

Mine came from Promax when Andy did my Level 2 conversion. I didn't strictly need them at the level of power I am running at present but you never know, I might want to turn it up a bit some time in the future.

This is the wastegate I am using:
http://www.promaxmotorsport.co.uk/products/35-dual-port-wastegate-manual-boost-controller.aspx
 
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