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
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:
http://www.sr20forum.com/1279519-post1.html
-G
References:
