Here is a pic of the test setup and an Excel screen shot showing the raw data and calculated dead times. If you'd like me to measure your injectors, send me a PM with your contact details.
Jeff
Dead time measured, Delphi 95 lb/hr low z
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9secz
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Dead time measured, Delphi 95 lb/hr low z
I finally have the chance to give something back to this board. I used my MS3 and Tunerstudio together with a VersaFueler and my injector flow bench to measure injector dead time for Delphi's 95 lb/hr low impedance injector. I followed the lead of this youtube video http://www.youtube.com/watch?v=lJgi8l-2XG4. Next I will be testing Lucas 120 lb/hr low impedance.
Here is a pic of the test setup and an Excel screen shot showing the raw data and calculated dead times. If you'd like me to measure your injectors, send me a PM with your contact details.
Jeff
Here is a pic of the test setup and an Excel screen shot showing the raw data and calculated dead times. If you'd like me to measure your injectors, send me a PM with your contact details.
Jeff
Re: Dead time measured, Delphi 95 lb/hr low z
That is a freaking NICE setup! I am soooo jealous!
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9secz
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Re: Dead time measured, Delphi 95 lb/hr low z
Thanks! This 4th order eq gives a reasonable curve fit:
y = 0.0002490398117·x4 - 0.01482719588·x3 + 0.3239904858·x2 - 3.163577576·x + 12.41638622
The 13.2 volt dead time is 0.57 ms.
Jeff
y = 0.0002490398117·x4 - 0.01482719588·x3 + 0.3239904858·x2 - 3.163577576·x + 12.41638622
The 13.2 volt dead time is 0.57 ms.
Jeff
Re: Dead time measured, Delphi 95 lb/hr low z
would the 120# be the one trickflow sell as pn. 89120. if so im very interested. by trial and error i come up with around .65ms. voltage slope is way off though.
Re: Dead time measured, Delphi 95 lb/hr low z
Can't you cheat it by switching from 2 squirts to 4 squirts and watch the Idle AFR? or some such...
Correctly identify your MS ecu here
Read the Do's and Don'ts to avoid the common pitfalls before starting your install or asking for help
Use only these manuals other manuals may cause brain damage or worse.
Read the Do's and Don'ts to avoid the common pitfalls before starting your install or asking for help
Use only these manuals other manuals may cause brain damage or worse.
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9secz
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Re: Dead time measured, Delphi 95 lb/hr low z
I've never seen Trickflow injectors. Mine are made by Lucas.ashford wrote:would the 120# be the one trickflow sell as pn. 89120. if so im very interested. by trial and error i come up with around .65ms. voltage slope is way off though.
Jeff
Re: Dead time measured, Delphi 95 lb/hr low z
looks to be the same unit9secz wrote:I've never seen Trickflow injectors. Mine are made by Lucas.ashford wrote:would the 120# be the one trickflow sell as pn. 89120. if so im very interested. by trial and error i come up with around .65ms. voltage slope is way off though.
Jeff
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9secz
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Re: Dead time measured, Delphi 95 lb/hr low z
Here is the raw data and calculated dead time versus voltage for Lucas 120s:
Good curve fit eq:
y = 0.0001912278744 x4 - 0.01164420921 x3 + 0.2580019471 x2 - 2.556672106 x + 10.57121078
13.2 volt dead time is 0.80 ms.
BTW, don't nag about significant digits on the curve fit! It's just a copy paste from the algorithm.
Jeff
Good curve fit eq:
y = 0.0001912278744 x4 - 0.01164420921 x3 + 0.2580019471 x2 - 2.556672106 x + 10.57121078
13.2 volt dead time is 0.80 ms.
BTW, don't nag about significant digits on the curve fit! It's just a copy paste from the algorithm.
Jeff
Re: Dead time measured, Delphi 95 lb/hr low z
thats really nice of you to do, thanks. btw use the data not the chart? i guestimater about a .7 dead time on my car using 2-4 squirts.