I have found a sr20det with the turbo outlet facing forwards. My question is how do I differentiate between a U13 and an Avenir turbo?

Can you run a BBDET U12 ECU on a U13?

Can you run a BBDET U12 ECU on an Avenir seeing they have 230hp? or would one be better off with a Gti-R ECU?

The GTi-R ECU is it's own animal; don't use it on anything other than a GTi-R. They have unique MAF sensors and injectors, and probably won't even run a non-'R engine. If you have an Avenir engine, though, why do you think an Avenir ECU wouldn't run it, as in, why would you use a Bluebird ECU?

Why would you want to know the diffrence between an Avaneir motor and a U13 BB motor. They are both the same motors.

Anyway the U13 BB motor comes between 91-95 they will have a Burgandy valve cover, 91-94 SE-R distributor, 91-94 SE-R red head temp sensor that uses a wire clip to hold on the conector. Like you know already the turbo faces down.

The W10 Avenier motor comes between 90-98. They come with burgandy vavle covers 91-94 and are just like the U13 BB, like listed up above. 95-96 comes with black valve covers and are the same as above. Then you have the 97-98 that come standard aluminum valve covers, 200 SX SE-R distributor, They have the blue head temp sensor that uses a inj type clip that comes on the 95-02 SR20 motors and have the black bolts that hold the valve cover down like what comes on the 97-2002 SR20 motors.

Originally posted by CanadianG
I have found a sr20det with the turbo outlet facing forwards. My question is how do I differentiate between a U13 and an Avenir turbo?

Can you run a BBDET U12 ECU on a U13?

Can you run a BBDET U12 ECU on an Avenir seeing they have 230hp? or would one be better off with a Gti-R ECU?


Yes you can run a Bluebird SR20DET ECU on a Bluebird SR20DET U13 engine as long as the U13 came from the factory with an external coil and you have all other required sensors for that year ECU.

You could run the Bluebird SR20DET U12 ECU on a Avenir as long as you use the U12 MAF or have a SAFC and you can use any Nissan MAF you want.


NOTE: I am only talking about SR series motors. If you have a SAFC manual you can see that all Nissan SR20VE, SR20DE(T), and SR18DE powered vehicles utilies a MAF sensor hotwire type (DUHH) and they also have a sensor number which happens to be HW-6 for the majority.

The sensor number (HW-6) for the following vehicle are the same.

Bluebird U12, U13 both NA and T, U14 NA 160 hp to 205hp
Silvia S14 NA, PS13 both NA and T 160 hp to 205hp
180SX RPS13 both NA and T 140 hp to 205hp
Pulsar N15, w/SR18DE only NA less than 125 hp
Primera P10, P11 only NA 140 hp
Sunny/Sentra B13,B14 only NA 140 hp
NX Coupe B13 only NA 140 hp

All Nissan SR20DE, SR18DE, SR20DET either use a HW-6 or HW-5 while the SR20VE use's HW-14

The more high powerfull SR20DET's use the HW-5 and that includes:

Nissan Silvia S-14 10/93 - present 220hp
Nissan Pulsar GTi-R N-14 8/90 - 12/94 230hp
Nissan Aveneir W11 8/98 - present 230hp
Nissan Aveneir W10 8/95 - 7/98 230hp

I see a pattern here if you were to look up horsepower for all these car the HW-6 MAF sensored vehicle's can ruffly read 125 hp and a little over 205hp

The HW-5 MAF powered vehicle's can ruffly read 220hp and up remember the GTi-R has and adjustable actuator meaning more horse power than 230 hp so I am sure the HW-5 MAF vehicles have a good amount of head room.

Originally posted by CowboyDren
The GTi-R ECU is it's own animal; don't use it on anything other than a GTi-R. They have unique MAF sensors and injectors, and probably won't even run a non-'R engine. If you have an Avenir engine, though, why do you think an Avenir ECU wouldn't run it, as in, why would you use a Bluebird ECU?

The reason I was wondering about the BB ECU on an avenir is there are alot more BB ECU's available then there are Avenir ECU's.

Originally posted by Andreas Miko
Why would you want to know the diffrence between an Avaneir motor and a U13 BB motor. They are both the same motors.


I wanted to know the difference for two reasons:

1 - If it is 230hp or 205

2 - Which ECU I should search for when I install this engine, I am not sure if JWT has a program for the Avenir

Originally posted by Andreas Miko
The W10 Avenier motor comes between 90-98. They come with burgandy vavle covers 91-94 and are just like the U13 BB, like listed up above. 95-96 comes with black valve covers and are the same as above. Then you have the 97-98 that come standard aluminum valve covers, 200 SX SE-R distributor, They have the blue head temp sensor that uses a inj type clip that comes on the 95-02 SR20 motors and have the black bolts that hold the valve cover down like what comes on the 97-2002 SR20 motors.

1. I don't agree with your statement about the W10 Aveneir SR20DET (since we are talking about DET's not DE's) was produced from 8/95 -7/98 and comes with a silver valve cover internal coil dist and stud type valve cover bolts and newer version of the Bluebird T-25.

2. I don't agree with your statement about the W11 Aveneir SR20DET it was produced from 8/98 - Present and comes with a black valve cover internal coil and anodized color valve cover bolts and a ball bearing T-25.

3. Not trying to start anything just trying to pass on more accurate info for those that it matters to.

Originally posted by CanadianG


I wanted to know the difference for two reasons:

1 - If it is 230hp or 205

2 - Which ECU I should search for when I install this engine, I am not sure if JWT has a program for the Avenir

To answer your question I don't see why you would need a special program for the Avenir just maybe MAF sensor since it make more hp and is basically the same MAF as the GTi-R. It is the same as the Bluebird except it is just more efficient hence 230hp, still has 370cc inj, still T-25 just newer and improved over the years and the Avenir has better tuned exhaust manifold that strongly resembles the GTi-R manifold. Other than that there the same. If I were you just use a Bluebird ECU. I haven't found an Avenir ECU nor do I know the part number to confirm that it really is, and if you use the Avenir ECU your probably going to need the Avenir or GTi-R MAF. If you use the Bluebird ECU use the Bluebird MAF. I'm going to research this some more to get the low down on these maf's.

thanx alot bro

Sorry Charlie 2020 I messed up on the Vavle cover years. My book goes up to 1999 and does have a pic of the W11 but does not list it they only show pics, I messed up the pics of the motors for the years.

Andreas Miko.

Andreas....go to bed already!! It's what..4am there?! Did you get the ECU yet? I could realy use that 100.00... money is tight.. Travis

What $100 for what ECU.

OK Ok Ok I remember the 240SX 95 ECU