Thread: Nissan W10 & W11 SR20DET Avenir Facts

There has been a lot of misinformation for many years concerning the W10 and W11 SR20DET Avenir motors. Many motors/turbos have been sold as W11 when they were actually W10. This wasn't a deliberate attempt by the seller to deceive the buyer, it was only out of the gross misinformation that's out there about these motors. I was very confused as well, so I went on a quest for the truth.

Searching many threads and over many days of research, I've uncovered a few facts about the Avenir and solved a few mysteries. I'm confident this information can be used as a good source for accurate information. Before you question the facts, check out my list of references.

FACTS:

- The Nissan Avenir that came with the SR20DET, was made between August 1995 - August 2002.
- The W10 Avenir SR20DET was produced from August 1995 - August 1998
- The W11 Avenir SR20DET was produced from August 1998 - August 2002
- The turbo number for the W10 Avenir SR20DET is 14411-1E001 and is journal bearing
- The turbo number for the W11 Avenir SR20DET is 14411-WA200('98-'00) & 14411-WF500('00-'02). They are both ball bearing
- The W10 Avenir SR20DET did NOT come with a ball bearing turbo
- The W11 Avenir SR20DET DID come with a ball bearing turbo
- The W10 Avenir came with a silver valve cover
- The W11 Avenir came with a silver valve cover
- Stock boost on a W10 is 7psi making 206hp (PSI not 100% confirmed)
- Stock boost on a W11 is 9psi making 227hp (PSI not 100% confirmed)[/B]

So what's this black valve cover W10 stuff about?!?: All W10/W11 Avenirs came with a silver valve cover. Some or all late model ('94-'95) U13 engines came with a black valve cover which is getting misrepresented as a W10 as late model engines share the same turbo. The '94 U13 blacktop came w/the older 1E000 turbo.
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SO YOU BOUGHT AN AVENIR....YOUR INFORMATION CONFLICTS WITH THE FACTS, WHAT DOES THAT MEAN?

- You didn't buy an Avenir.
- You got the model (W10/W11) confused.

WHAT SHOULD I BE LOOKING FOR WHEN I BUY AN AVENIR??

- A silver valve cover
- The turbo part # (14411-1E001 = W10 from '95-'98 || 14411-WA200 = W11 from '98-'00 || 14411-WF500 = W11 from '00-'02)
-- Here is a post showing the turbo # plate ID & a genuine W11 turbo: SR20 Forum - View Single Post - FS: W11 Avenir Ball Bearing Turbo Setup

ANY OTHER ADVICE/TIPS??

- W11 Avenirs use lowport oil filters

-G

References:

• SR20 Forum - View Single Post - Some more W11 Avenir info for you
• G20.net - Forums - View Single Post - Ball Bearing T25?
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• “úŽYFƒAƒxƒj[ƒ‹EƒƒJƒjƒYƒ€
• Pulsar Group of Australia - View Single Post - red and black top sr's
• Pulsar Group of Australia - View Single Post - red and black top sr's
• http://www.sr20-forum.com/165116-post42.html
  

89/10 - xx/xx U12 SR20DET - MAF 22680-79E00
89/10 - 90/09 ECU 23710-79E00 M/T
90/09 - xx/xx ECU 23710-79E01 M/T
89/10 - 90/08 ECU 23710-79E10 A/T
90/08 - xx/xx ECU 23710-79E11 A/T
89/10 - 90/10 ECU 23710-79E60 M/T
90/10 - xx/xx ECU 23710-79E61 M/T
*o2 sensor - 22690-79E00 (Skinny Type)
*o2 bung - 20607-V5000 (Skinny Bung)

91/09 - 95/01 U13 SR20DET - MAF 22680-54C00
95/01 - xx/xx U13 SR20DET - MAF 22680-54C01
91/09 - 93/08 ECU 23710-1E000 M/T
91/09 - 93/08 ECU 23710-1E010 A/T
93/08 - xx/xx ECU 23710-4E600 M/T
93/08 - xx/xx ECU 23710-4E610 A/T
*o2 sensor - 22690-1E001 (Skinny Type)
*o2 bung - 20607-V5000 (Skinny Bung)

FATTY 02 SENSORS:

08/90 - xx/xx B13 SR20DE - MAF 22680-53J00
*o2 sensor - 22690-64Y12
*o2 bung - 20607-P6500

95/08 - xx/xx W10 SR20DET - MAF 22680-54C01
95/08 - 97/01 ECU 23710-95N11 A/T **
97/01 - xx/xx ECU 23710-95N15 A/T
*o2 sesnor - 22690-91N00 (Fatty Type)
*o2 bung - 20607-P6500 (Fatty Bung)

98/08 - 00/05 W11 SR20DET - MAF 22680-54C01
98/08 - 00/03 ECU 23710-WA310 A/T
00/03 - 00/05 ECU 23710-WA311 A/T
00/05 - 00/09 ECU 23710-WA720 A/T
00/09 - xx/xx ECU 23710-WA721 A/T
*o2 sensor - 22690-5V420 (Fatty Type)
*o2 bung - 20607-P6500 (Fatty Bung)

can someone please sticky this or move it to the Howto section??

thanks!

-G

is there any red top avenir?

NO. Only silver.

-G

so i must have a bb? cause its red top.

Read the post.

SO YOU BOUGHT AN AVENIR....YOUR INFORMATION CONFLICTS WITH THE FACTS, WHAT DOES THAT MEAN?

- You didn't buy an Avenir.
- You got the model (W10/W11) confused.



And yes, you have a bluebird.

any info on Avenir dipsticks?

blah

i compared it with the usdm and the lenghts are +1" off, i couldnt find any info on if thats correct on this sticky

Thanks a lot for the great info!

With this I was able to confirm that I have a W11