Miata Turbo Forum - Boost cars, acquire cats.

Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
-   DIY Turbo Discussion (https://www.miataturbo.net/diy-turbo-discussion-14/)
-   -   RX8 injectors (https://www.miataturbo.net/diy-turbo-discussion-14/rx8-injectors-62821/)

yan816 01-14-2012 07:00 PM

RX8 injectors
 
Is anyone using DENSO 195500-4460 RX-8 blue top injectors? They are rated at 540cc@3bar 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?

thirdgen 01-14-2012 07:11 PM

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.

mx594m 01-14-2012 09:11 PM

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

thirdgen 01-14-2012 09:25 PM

Those injectors look 100% Miata PNP to me. I wish I would've known about these before I bought my 425cc's (195500-4450).

yan816 01-15-2012 04:50 AM

Thanks for the replies, I've now just bought a set.:bigtu: I was just wondering why they have never been mentioned before.

thirdgen 01-15-2012 05:53 AM

May I ask what you paid for them?

yan816 01-15-2012 01:55 PM

£70 - no idea what that is in dollars?

WestfieldMX5 01-15-2012 03:52 PM

3, Accurate text on products

Why do they say that? Chinese clone?

Reverant 01-15-2012 03:58 PM

Obviously a clone.

yan816 01-15-2012 04:53 PM

They are used and from a 2004 RX8. How does that make them fake or an obvious clone?

mx594m 01-15-2012 05:03 PM


Originally Posted by yan816 (Post 820595)
£70 - no idea what that is in dollars?

at today's rate ~ $107.00 [us]

damn good price

yan816 01-15-2012 05:07 PM


Originally Posted by mx594m (Post 820668)
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.

Reverant 01-16-2012 01:51 AM


Originally Posted by yan816 (Post 820665)
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.

thirdgen 01-16-2012 08:38 AM

I want a set of these pretty bad. At $107 you can't go wrong!

Reverant 01-16-2012 09:03 AM

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.

yan816 01-16-2012 10:50 AM

1 Attachment(s)

Originally Posted by Reverant (Post 820931)
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?
https://www.miataturbo.net/attachmen...ine=1326729009

What was the problem with the tune?

Reverant 01-16-2012 11:16 AM

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.

yan816 01-16-2012 11:45 AM

Thanks for the advice. What injectors do you think would be ideal for a car running upto about 200bhp that wont break the bank?

thirdgen 01-16-2012 11:49 AM

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.

thirdgen 01-16-2012 11:52 AM


Originally Posted by yan816 (Post 820995)
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.


All times are GMT -4. The time now is 12:19 PM.


© 2024 MH Sub I, LLC dba Internet Brands