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eBay RX8 Injectors

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Old 07-19-2017, 07:42 PM
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Default eBay RX8 Injectors

Starting to build a '95 turbo (sr20 T25), got megasquirt going and it's injector time! I've heard good things of OEM refurbished RX8 injectors for 220-250whp. Anyone had success with any particular eBay seller when buying rx-8 yellows P/N 195500-4550?

These both claim to be flow matched OEM:
Mazda RX-8 Flow Matched Fuel Injector Set Of 4 04-08 Denso Yellow 195500-4450 ($190)
4x OEM Mazda RX-8 Denso Yellow Fuel Injectors: Flow Tested & Cleaned | eBay ($160)
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Old 07-19-2017, 07:53 PM
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Lately a lot of people have been ending up with knock off injectors from eBay sellers. I would grab a set of Mustang injectors from Flow Force and skip the trouble.
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Old 07-19-2017, 09:05 PM
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What he said, I ran out of fuel with a 2560 (S20 turbo) at around 12psi. Might as well spend a little more and get bigger injectors.
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Old 07-20-2017, 02:30 PM
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Or you can diy some ev14s for 200, or you can buy flow force for 300. Hmm.
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Old 07-20-2017, 05:23 PM
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I have those same Rx8 injectors. flow tested from some ebay place. 99.99% certain they would be the Chinese copys

they are much better than the stockies I had. My stock injectors were the originals out of a 1990 NA6. with over 200 k miles on them. Ive owned the car for 20 years and in that time, The injectors were never cleaned. slightly more power was immediately apparent and the rev range is much smoother. I'm N/A with E85 so my stockies were on over 90% Duty cycle at high loads.
if you're a novice like me in tuning your mega squirt. Might be better to get some good ones like the others suggested it will be easier to get all those adjustments right for superpb idle tuning. a lot of he guys who know a lot about things seem to recommend against them. However I had them, so stayed with them.

They seem to work fine. although finding the dead time numbers had to do some research. They also claim flow rate was 450. the Denso Rx8 injectors were 420. eventually I tried method they descibe in plotting here in a thread. I went with that. I'm still unsure if I have the voltage compensation correct or not. I use a MS 2 PnP.
a mate in the local scene here has the same injectors. Although his could be the real thing. He got them 2nd hand. He runs fine at 190whp on an NA6

Last edited by StanTheMan; 07-20-2017 at 05:41 PM.
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