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RX8 injectors

 
Old 01-14-2012, 07:00 PM
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Default RX8 injectors

Is anyone using DENSO 195500-4460 RX-8 blue top injectors? They are rated at [email protected] 13.8ohm, higher than the usual yellow tops people in the UK go for. Is there any reason why these would be a bad idea?
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Old 01-14-2012, 07:11 PM
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As long as you have a different than stock ECU, the injectors are high impedence, and they are PNP for the miata, you should have no issues at all.
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Old 01-14-2012, 09:11 PM
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looks like a EV6s - get 12 for $360[us] - sell 2 sets of 4 for $180[us] each
http://gzyongjian.en.alibaba.com/pro...injector_.html
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Old 01-14-2012, 09:25 PM
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Those injectors look 100% Miata PNP to me. I wish I would've known about these before I bought my 425cc's (195500-4450).
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Old 01-15-2012, 04:50 AM
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Thanks for the replies, I've now just bought a set. I was just wondering why they have never been mentioned before.
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Old 01-15-2012, 05:53 AM
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May I ask what you paid for them?
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Old 01-15-2012, 01:55 PM
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£70 - no idea what that is in dollars?
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Old 01-15-2012, 03:52 PM
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3, Accurate text on products

Why do they say that? Chinese clone?
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Old 01-15-2012, 03:58 PM
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Obviously a clone.
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Originally Posted by ninerwfo View Post
The “into to megasquirt thread” mentions that the MS3 basic has 5 inputs with built in pull up resistors - and I was just wondering why it would have so many, while the MS3Pro PnP has just 2 (with no pull ups?)
MS Labs: Plug and Play Megasquirt ECUs for ANY 90-05 Miata (NA, NB1, NB2 w/VVT, MSM), including basemaps to get you started ASAP. PM me or email or details.
For support on MS Labs ECUs: Please email, be sure to include the unit's serial number and include a datalog and your current map.
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Old 01-15-2012, 04:53 PM
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They are used and from a 2004 RX8. How does that make them fake or an obvious clone?
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Old 01-15-2012, 05:03 PM
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Originally Posted by yan816 View Post
£70 - no idea what that is in dollars?
at today's rate ~ $107.00 [us]

damn good price
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Old 01-15-2012, 05:07 PM
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Originally Posted by mx594m View Post
at today's rate ~ $107.00 [us]

damn good price
Add in the cost of getting them cleaned and I still think they are a good price.
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Old 01-16-2012, 01:51 AM
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Originally Posted by yan816 View Post
They are used and from a 2004 RX8. How does that make them fake or an obvious clone?
I was referring to the link posted just above.
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Originally Posted by ninerwfo View Post
The “into to megasquirt thread” mentions that the MS3 basic has 5 inputs with built in pull up resistors - and I was just wondering why it would have so many, while the MS3Pro PnP has just 2 (with no pull ups?)
MS Labs: Plug and Play Megasquirt ECUs for ANY 90-05 Miata (NA, NB1, NB2 w/VVT, MSM), including basemaps to get you started ASAP. PM me or email or details.
For support on MS Labs ECUs: Please email, be sure to include the unit's serial number and include a datalog and your current map.
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Old 01-16-2012, 08:38 AM
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I want a set of these pretty bad. At $107 you can't go wrong!
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Old 01-16-2012, 09:03 AM
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I've tuned a car that has the blue "525cc" injectors. I can tell you right here and now, I wouldn't tune a car with these again.
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Originally Posted by ninerwfo View Post
The “into to megasquirt thread” mentions that the MS3 basic has 5 inputs with built in pull up resistors - and I was just wondering why it would have so many, while the MS3Pro PnP has just 2 (with no pull ups?)
MS Labs: Plug and Play Megasquirt ECUs for ANY 90-05 Miata (NA, NB1, NB2 w/VVT, MSM), including basemaps to get you started ASAP. PM me or email or details.
For support on MS Labs ECUs: Please email, be sure to include the unit's serial number and include a datalog and your current map.
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Old 01-16-2012, 10:50 AM
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Originally Posted by Reverant View Post
I've tuned a car that has the blue "525cc" injectors. I can tell you right here and now, I wouldn't tune a car with these again.
Are these the same injectors?


What was the problem with the tune?
Attached Thumbnails RX8 injectors-d1955004460.jpg  
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Old 01-16-2012, 11:16 AM
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These injectors don't like to idle at less than 14.2-14.3 at all. The idle hunts a bit too much for my own taste when EGO is enabled around idle too. This indicates poor atomization and linearity on low pulsewidths. I understand that people are looking to save money as much as possible, however the injectors would probably be one of the last things you want to "gamble" with.
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Originally Posted by ninerwfo View Post
The “into to megasquirt thread” mentions that the MS3 basic has 5 inputs with built in pull up resistors - and I was just wondering why it would have so many, while the MS3Pro PnP has just 2 (with no pull ups?)
MS Labs: Plug and Play Megasquirt ECUs for ANY 90-05 Miata (NA, NB1, NB2 w/VVT, MSM), including basemaps to get you started ASAP. PM me or email or details.
For support on MS Labs ECUs: Please email, be sure to include the unit's serial number and include a datalog and your current map.
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Old 01-16-2012, 11:45 AM
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Thanks for the advice. What injectors do you think would be ideal for a car running upto about 200bhp that wont break the bank?
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Old 01-16-2012, 11:49 AM
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Do you remember what the idle RPM's were? I could deal with idle being at 14.2 AFR, as long as it idles under or near 1,000 rpm's.
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Old 01-16-2012, 11:52 AM
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Originally Posted by yan816 View Post
Thanks for the advice. What injectors do you think would be ideal for a car running upto about 200bhp that wont break the bank?
I'd get the yellow 425cc rx8 ones...4450 is the last 4 numbers. They should be good for your goal.
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