O2 Sensor Thread Size - Relates to installion of WBO2

[mdonohoe]

Hi Guys,

I'm going to install a WBO2 sensor so I can further road-tune my '93 R33 GTS25T(Auto - completely stock) however...

I'm needing to know... what size is the stock O2 Sensor? The size of the sensor that I need to fit is(from TechEdge) - 18mm 1.5mm Pitch.. This is apparently a standard O2 sensor size, just wanting to know if this is fine for a R33 GTS25T?

Thanks

Matt

BTW - WBO2 - www.techedge.com(Australian)

[Blk33]

Hi Matt,

I fitted a dump pipe to my R33. Before I fitted the dump, I also added a plug to allow the fitting a Tech Edge WB02 sensor. The thread of the WB02 is the same as the Oxygen sensor fitted to your car. In fact it will fit in the same plug hole in the standard R33 dump pipe..

The plug was supplied and welded in at my local exhaust supplier.

I have been using the Tech Edge WB02 for about 9 months now. I use it to fine tune my Wolf ECU.

Good luck.

Rob

[mdonohoe]

Greets Rob,

Thanks for your reply, just to confirm, 8mm WBO2 sensor able to fit in standard hole without any modifications? At this stage not going to install a second sensor bung as I dont really feel this is warranted as yet. Just waiting on your reply before I go an purchase the kit(soldering is fun, is it not :-))

Thanks

Matt

Hi Matt,

I fitted a dump pipe to my R33. Before I fitted the dump, I also added a plug to allow the fitting a Tech Edge WB02 sensor. The thread of the WB02 is the same as the Oxygen sensor fitted to your car. In fact it will fit in the same plug hole in the standard R33 dump pipe..

The plug was supplied and welded in at my local exhaust supplier.

I have been using the Tech Edge WB02 for about 9 months now. I use it to fine tune my Wolf ECU.

Good luck.

Rob

[Blk33]

Greets Rob,

Thanks for your reply, just to confirm, 8mm WBO2 sensor able to fit in standard hole without any modifications? At this stage not going to install a second sensor bung as I dont really feel this is warranted as yet. Just waiting on your reply before I go an purchase the kit(soldering is fun, is it not :-))

Thanks

Matt

After double checking your message, I think you are purchasing a NTK 7057 Sensor priced at $89. Yes it will fit in the standard hole. I used the 6066 at $150.

HOWEVER, removing the standard O2 sensor and replacing it with the NTK 7057 alone will not improve your tuning ability. The NTK sensor requires the WB02 2A0 in order for it to measure the air / fuel ratio. The total kit will set you back about $600!!

Also, I have a Wolf ECu that allows me to tune the amount of fuel. If you have the standard ECU will not be able to tune any thing!

Thus, if you are swapping the standard O2 sensor with the NTK 7057, I don't think it will work and you will not gain anything.

Hope that helps.

Cheers

Rob

[mdonohoe]

Ouch Rob,

Sorry, I did forgot to mention my plans, but all is good, I am getting a Apexi S-AFC 2 or E-Manage in the next week as well as the A02 DIY Kit... I thought my PM about that would have fixed that up... or the bit about soldering :-)

Anyway, thanks muchly for your information, it was an awesome help :-)

Thanks

Matt

After double checking your message, I think you are purchasing a NTK 7057 Sensor priced at $89. Yes it will fit in the standard hole. I used the 6066 at $150.

HOWEVER, removing the standard O2 sensor and replacing it with the NTK 7057 alone will not improve your tuning ability. The NTK sensor requires the WB02 2A0 in order for it to measure the air / fuel ratio. The total kit will set you back about $600!!

Also, I have a Wolf ECu that allows me to tune the amount of fuel. If you have the standard ECU will not be able to tune any thing!

Thus, if you are swapping the standard O2 sensor with the NTK 7057, I don't think it will work and you will not gain anything.

Hope that helps.

Cheers

Rob