My quest of running Ford GT500 EV14s
12-17-2014, 04:04 PM
#101
didn't wanna say it, but YES +100000
I keep checking back every few weeks or so for results, and someone posting up legit proof that these are not junk that you have to idle super fat cause they're mis-matched, and that these really are 95% ID for 25% the price.
And nothing. just a bunch of people buying them and not doing anything
lol
I keep checking back every few weeks or so for results, and someone posting up legit proof that these are not junk that you have to idle super fat cause they're mis-matched, and that these really are 95% ID for 25% the price.
And nothing. just a bunch of people buying them and not doing anything
lol
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12-17-2014, 06:35 PM
#104
Retired Mech Design Engr
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My guess is that narrow band control doesn't care about these issues, or the ECU tuning is much more sophisticated.
Point is, you can't assume OEM means good results from MS.
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12-17-2014, 06:40 PM
#105
didn't wanna say it, but YES +100000
I keep checking back every few weeks or so for results, and someone posting up legit proof that these are not junk that you have to idle super fat cause they're mis-matched, and that these really are 95% ID for 25% the price.
And nothing. just a bunch of people buying them and not doing anything
lol
I keep checking back every few weeks or so for results, and someone posting up legit proof that these are not junk that you have to idle super fat cause they're mis-matched, and that these really are 95% ID for 25% the price.
And nothing. just a bunch of people buying them and not doing anything
lol
I have only anecdotal evidence but my buddy runs these on his B5 1.8t Audi A4 and they worked well for him.
Oh and they work great on Honda K motors...at least under extreme racing conditions.
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12-17-2014, 06:42 PM
#106
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Update:
I finally got the car back on the road after swapping these injectors in and going to sequential fuel and spark. These EV14's work great and idle much better than the RX7 460cc injectors I had before.
I have had some missfire and MS restet issues to deal with due to spark issues, but now that it is resolved I have been able to re-tune for the new injectors and it ildles, cruises and pulls very smoothly compared to the old injectors. Datalogs show smoother AFR response as well.
I have never driven a car with matched injectors, so I really couldn't say how these factory GT500 injectors compare to the aftermarket matched EV14's that are avaliable.
For $120 in parts it was well worth it.
I finally got the car back on the road after swapping these injectors in and going to sequential fuel and spark. These EV14's work great and idle much better than the RX7 460cc injectors I had before.
I have had some missfire and MS restet issues to deal with due to spark issues, but now that it is resolved I have been able to re-tune for the new injectors and it ildles, cruises and pulls very smoothly compared to the old injectors. Datalogs show smoother AFR response as well.
I have never driven a car with matched injectors, so I really couldn't say how these factory GT500 injectors compare to the aftermarket matched EV14's that are avaliable.
For $120 in parts it was well worth it.
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12-17-2014, 07:08 PM
#107
We have lots of cases reported on OEM ECU's operating OEM injectors that MS has trouble with. Horrible low end non-linearity, solenoid heat soak.
My guess is that narrow band control doesn't care about these issues, or the ECU tuning is much more sophisticated.
Point is, you can't assume OEM means good results from MS.
My guess is that narrow band control doesn't care about these issues, or the ECU tuning is much more sophisticated.
Point is, you can't assume OEM means good results from MS.
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12-24-2014, 09:25 PM
#108
mkturbo.com
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So anyone running these with an MS3x want to post up all the setting they are using? I am going to be updating my MSQ in a bit and want to go with what is working for you guys.
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03-23-2015, 03:52 PM
#110
SADFab Destructive Testing Engineer
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I also have installed and am running these. A couple issues I have run into that could just be my tuning. So advice or anything is appreciated.
My main issue is having the idle caught after a touch of throttle. It likes to die. I added fuel in the idle areas and that helped, but Autotune keeps pulling it out when I run autotune at idle. Another thing is after I snap the throttle shut it goes really rich and then slowly climbs back to stoich.
I think some good EAE would help my problem but I really have no idea how to correctly tune it.
My main issue is having the idle caught after a touch of throttle. It likes to die. I added fuel in the idle areas and that helped, but Autotune keeps pulling it out when I run autotune at idle. Another thing is after I snap the throttle shut it goes really rich and then slowly climbs back to stoich.
I think some good EAE would help my problem but I really have no idea how to correctly tune it.
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03-23-2015, 04:51 PM
#113
Retired Mech Design Engr
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It is recommended to do exactly as G suggests. Do not use autotune for idle. If your idle is not catching, that is not likely a VE issue, but rather a IAC target or dashpot setting.
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03-23-2015, 04:52 PM
#114
SADFab Destructive Testing Engineer
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Ok I'll try that.
Idle caught fine with RX-8 injectors, and catches fine with a bit more fuel in the idle area. I have spent a bunch of time tuning the dashpot and IAC settings.
Idle caught fine with RX-8 injectors, and catches fine with a bit more fuel in the idle area. I have spent a bunch of time tuning the dashpot and IAC settings.
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03-26-2015, 02:11 PM
#119
I have not had any idle issues due to the injectors. They are working great so far. I made a new harness with the EV14 connectors instead of adding additional failure points with a adapter pigtail for each injector. I am running these sequential with no issues at all. Well, I still have the same hot restart issue I have had with factory and RX7 injectors as well. Thats a different topic all by itself.
This is my GT500 injector DIY thread from a few months ago.
https://www.miataturbo.net/diy-turbo...tor-diy-79337/
This is my GT500 injector DIY thread from a few months ago.
https://www.miataturbo.net/diy-turbo...tor-diy-79337/
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03-26-2015, 02:46 PM
#120
Retired Mech Design Engr
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Good Info
Well, I still have the same hot restart issue I have had with factory and RX7 injectors as well. Thats a different topic all by itself.
This is my GT500 injector DIY thread from a few months ago.
https://www.miataturbo.net/diy-turbo...tor-diy-79337/
This is my GT500 injector DIY thread from a few months ago.
https://www.miataturbo.net/diy-turbo...tor-diy-79337/
Tells me I don't need to go to them to solve that issue. As long as the Yellow tops give me enough fuel, I won't need to spend more $$ on injectors.
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