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Hi guys,

Can anyone confirm for me what size injector was used on an SP? I have heard that they were from a volvo parts list so a part number would be fantastic as well!

I am trying to work out if new injectors are going to be necassary when I install the new ECU.

Thanks for your help in advance.

RobH

ask chiptorque as they tuned the sp. here is a list of plug and play injectors - you will note that the turbo has the same as non turbo. this would be for the SE or mazdaspeed miata.

Complete list of Miata plug and play replacement injectors (“F” connector):

[HTML]Year Make/Model Engine Size/Color Part #
87-88 Toyota MR2 4AGE NA 213cc – Beige Top #23250-16080
89-91 B2220 Truck 224cc - Yellow Top? #23250-74040?
99-00 Mazda Miata 240cc - Thin Red Body #195500-4430
Toyota 4AGE 250cc – Green Top
Toyota 4AGE 250cc – Violet Top
94-97 Mazda Miata 254cc - Tan Top #195500-2180
01-05 Mazda Miata NA & TURBO 265cc - Thin Lt. Prple #195500-4060
Toyota 3SGE 295cc – Green Top
89-92 Toyota Supra 7MGE NA 305cc – Light Green Top #23250-70080
93-95 Toyota Supra 3.0L 312cc - Maroon Top #23250-46030
Toyota 3SGE 315cc – Pink Top
90-92 MX6/626/Probe Turbo 326cc - Gray Top #195500-2150
89-91 B2600 Truck 326cc - Gray Top #195500-2150
Mazda 323 GTX TURBO 360cc - Black Top #195500-2130
Celica/MR2 3SGE NA 370cc - Green Top #23250-74160
Mazda RX8 420cc - Yellow Body #195500-4450
Subaru WRX 425cc - Lt. Blue Body #3920
89-92 Toyota Supra 7MGE TURBO 430cc – Black Top
89-92 Mazda RX-7 NA 440cc - Blue Top #195500-5740
89-91 RX-7 NA 460cc - Red Top #195500-2010
Subaru STi 540cc - Thin Pink Body #3910
89-91 RX-7 TURBO 550cc - purple top #195500-2020

Just to give you an idea of how small the stock SP ones are - we up the racers to 580cc...just to make sure we can get enough fuel.

says the man who has a massive flame comming out of the back. On his sig pic.

Does this mean the ones in the SP as standard are around 265cc?

I've always thought the SP injectors are identical to the standard NB8B.

Garry?

I thought they upped the size to 328cc for the SP. There's a guy in Melbourne currently selling 18 sets of them on ebay. NB ones are light purple, these are light blue.

I was under the impression they were bigger than the stock NB8B Hammer. No idea where they came from though. I took mine out to be cleaned last December but I cant remember what colour they were.

I spoke with Al Dennis at Max Kirwan's this morning and he has confirmed recently with Chiptourque in Nerang that the SP injectors were 7MGE 303cc's.

mmmm, good news, I was just speaking with my mechanic mate and he has wrx blue body 425cc injectors sitting around doing nothing so they have been earmarked for my car. Now I just need to sort out a connection from the ECU to the car and we're in business

These are the ebay ones. I bought a set from him last year and they were genuine 265cc NB8B in perfect nick. They're a good update for an NA8, being roughly the same capacity but better units all round. They make a difference, especially to low speed tractability.

He says these are the bigger SP ones - you'd need to do a bit of research to confirm what you're getting first.
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=190318937035&ssPageName=MERC_VIC_RCRX_Pr2_PcY_BIN_IT&refitem=190318683896&itemcount=2&refwidgetloc=closed_view_item&usedrule1=CrossSell_LogicX&refwidgettype=cross_promot_widget&_trksid=p284.m183&_trkparms=algo%3DCRX%26its%3DS%252BI%26itu%3DSI%252BUCI%26otn%3D2

I have my original SP injectors in front of me, and can confirm that they part number 23250-70080 which a quick google search confirmed to be NipponDenso injectors off the Toyota Supra 89-92 7MGE 305cc – Light Green Top.
These are out of their depth beyond around the 160kw mark from memory...
I believe the ones I am running are around the 460cc mark... fine for around a 180 kw tune, and should be able to do a bit higher without issues (I think these are the same as BJ's injectors unless he has gone bigger again in the big HP hunt...)

Cheers,
Dave

manga_blue wrote:There's a guy in Melbourne currently selling 18 sets of them on ebay. NB ones are light purple, these are light blue.

manga_blue wrote:These are the ebay ones. I bought a set from him last year and they were genuine 265cc NB8B in perfect nick. They're a good update for an NA8, being roughly the same capacity but better units all round. They make a difference, especially to low speed tractability.

He says these are the bigger SP ones - you'd need to do a bit of research to confirm what you're getting first.
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=190318937035&ssPageName=MERC_VIC_RCRX_Pr2_PcY_BIN_IT&refitem=190318683896&itemcount=2&refwidgetloc=closed_view_item&usedrule1=CrossSell_LogicX&refwidgettype=cross_promot_widget&_trksid=p284.m183&_trkparms=algo%3DCRX%26its%3DS%252BI%26itu%3DSI%252BUCI%26otn%3D2

just got a set from the above ebay auction & can confirm that they are the 265cc light purple 195500-4060 NB8B injectors