06-04-2011, 08:41 AM
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#35
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Re: h20/meth injection on 86 t1 log questions!
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Hybrid Booster
Join Date: May 2009
Location: Brighton MI / Brantford ON
My Ride: 87' Lancer/88' CSX-T
Engine: 2.2 T1/2.5 T2
Induct: Turbo
1/4: 0.000
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NP funatic.
**Interesting update; I did most of my tuning/testing while the weather was still cool here.
Yesterday I decided to clean and check the h2o system. Cleaned the injector and check valve, checked the lines, tested the pump, etc. Since it's warmer now I was playing with the settings. I set the 2gph to flow at 2psi. I measured the voltage to the pump at 13.5V with the pressure turned up to 250psi. So that's nearly 270psi at the pump outlet. disregarding pipeline friction that's almost 4gph at the injector itself. When it hit at 2psi part throttle the car ate it up happily. Temps were roughly 85'F humidity 60% give or take at nearly sea level. I was amazed. Just over 3k and 2psi on my log doesn't equate to much hp especially at part throttle. By my math that's conservatively 60% fluid injection to fuel and it didn't bog a bit but rather picked up steadily. I'm friggin confused, either there's a huge pressure loss between the pump and injector or the car wants a ton more fluid...
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