Injectors.?

psquire45 · Postby **psquire45** » Mon Jul 09, 2012 11:08 am

So I'm hunting around looking for a place to get some injectors.
I'm after either 460cc or 550cc that sort of area. Preferably the ones that are plug and play with the standard mx5 fuel rail and Harness
Does any one know a place in Sydney?

Or I've got a mate that works for Bosch. So if any one knows the Bosch part number for the rx8 injectors or the rx7 550cc that would be very useful

Or if any one has a set lying around that they'd like to sell me

Cheers

Paul

zossy1 · Postby **zossy1** » Mon Jul 09, 2012 11:49 am

Both RX7 and RX8 injectors are Denso. AFAIK there are no Bosch injectors that have the Denso-style connector that will plug and play with the MX5 injector harness.

Ebay is a good place to look, as is MT.net and miata.net. Look on the US eBay in particular as sets come up all the time and the shipping on injectors is relatively cheap. Make sure you get units that have been cleaned and flow tested and come with new seals.

Otherwise, consider some aftermarket units (like Deatschwerks) with adapter harnesses - they work fine too.

http://miataturbo.wikidot.com/fuel-injectors

psquire45 · Postby **psquire45** » Mon Jul 09, 2012 11:59 am

Yeah the research I've been doing backs up the denso info unfortunately, bugger was hoping to get them on the cheap

Does any one have any feedback on the ebay ones? I'm just pretty cautious with eBay car bits

Dweezle · Postby **Dweezle** » Mon Jul 09, 2012 12:29 pm

I got the rx8 ones from 949 racing.
Was less than $300 delivered i believe.

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vrmmmpshhh · Postby **vrmmmpshhh** » Mon Jul 09, 2012 7:28 pm

just keep searching.. i just picked up 6 315cc supra injectors for $50 on ebay. ill get them cleaned and tested and keep 2 spare.

timk · Postby **timk** » Mon Jul 09, 2012 7:51 pm

The RX-7 Densos are based on the old school Bosch EV1 design (same style as the stock NA injectors), the RX-8 Densos are based on the EV6 (like NB injectors), and all the "cool kids" run EV14 injectors these days (ID1000 and the like).

Each successor results in better fuel atomisation resulting in smoother idle, more power, hotter girls, etc.

bark · Postby **bark** » Mon Jul 09, 2012 8:21 pm

I wouldn't be using rotary injectors in a piston engine. Rotary injectors are designed to shoot long and narrow, pistons are designed to shoot short and wide. You can choose to take it on board or not, just thought worth mentioning.

psquire45 · Postby **psquire45** » Mon Jul 09, 2012 10:04 pm

bark wrote:I wouldn't be using rotary injectors in a piston engine. Rotary injectors are designed to shoot long and narrow, pistons are designed to shoot short and wide. You can choose to take it on board or not, just thought worth mentioning.

I've read that too. However I've also read that basically every second person is using them with success

saboteur wrote:The RX-7 Densos are based on the old school Bosch EV1 design (same style as the stock NA injectors), the RX-8 Densos are based on the EV6 (like NB injectors), and all the "cool kids" run EV14 injectors these days (ID1000 and the like).

Each successor results in better fuel atomisation resulting in smoother idle, more power, hotter girls, etc.

So your saying I want the rx8 ones then so I can be all

Paul

zossy1 · Postby **zossy1** » Tue Jul 10, 2012 12:18 am

RX8s will idle better. I much prefer the RX8 injectors to the 550cc RX7 red tops I had on my old car, especially at idle.

They flow better than 460cc too. Closer to 500cc according to my flow test results.

SuperMazdaKart · Postby **SuperMazdaKart** » Tue Jul 10, 2012 10:01 am

Try the orange top injectors from a Mazda Familia (323) 1.8L GTR or BG8Z GT-Ae. They are 440cc minimum & go up to 550cc. They are a Group A rally homologation & are fitted with a BP engine using a big turbo (IHI VJ23) from the factory. Those engines made about 156 kilowatts flywheel in standard form.

psquire45 · Postby **psquire45** » Tue Jul 10, 2012 10:06 am

Cheers for that zossy I'll have a hunt for some rx8 ones then

I'll have a week or two to hunt around because I'm up to mania thurs to pick up the adaptronic and wide band . They've got a bundle going this month that knocks a couple hundred off the total so that's the priority to take advatange of the savings

jerrah · Postby **jerrah** » Tue Jul 10, 2012 4:00 pm

saboteur wrote:..all the "cool kids" run EV14 injectors ... more power, hotter girls, etc.

My EV14 850's arrived yesterday so I'll be selling my RC Racing 550's soon.

Beelzeboss · Postby **Beelzeboss** » Mon Jul 16, 2012 12:48 am

I have a set of 550cc low impedance RX7 injectors with pigtails which I'd let go cheap, I'm also in Sydney if you want to pick them up. Shoot me a PM if you're interested.