What is a Japanese manifold? Topic is solved

Post by **matthew1** » 15 Oct 2016, 11:41

Here https://www.matthewsvolvosite.com/forums ... p?p=419401 tryingbe just sold one.

P80 R exhaust manifolds = P2 2.5T manifolds, apparently, so if you're looking for an R manifold you don't have to limit yourself to rare R pieces. Note I don't know if this is physical equal, or end result flow calculation equal.

But Japanese? Never heard of it until tryingbe's FS post above.

Post by **matthew1** » 15 Oct 2016, 11:44

No "funny guys" saying "It's from Japan"

.

Steve.

Post by **tryingbe** » 15 Oct 2016, 11:46

But it IS from Japan.

Casting says JAPAN on it!

Post by **matthew1** » 15 Oct 2016, 11:56

Hm. Ok, then what do other manifolds say?

Any design differences that you know of?

Post by **tryingbe** » 15 Oct 2016, 12:10

Three manifolds for T5. I don't remember the year exactly.

94-2000 crack(s) at the collector is usual.
01-04 (Japanese) casting seems cleaner, and usually no crack
05+ (R manifold) used by R and non R cars, 2 lbs lighter, I believe, usually no crack.

https://www.matthewsvolvosite.com/forums ... hp?t=55616

Post by **matthew1** » 15 Oct 2016, 12:14

Beautiful. Thanks, I learned something today. I have a R manifold sitting around I'll inspect soon.

Post by **erikv11** » 15 Oct 2016, 13:50

This recent discussion about exhaust manifolds is informative http://volvospeed.com/vs_forum/topic/17 ... ison-test/

Post by **matthew1** » 15 Oct 2016, 14:20

Interesting, thanks ^.

My extra R manifold is indeed stamped "Japan". Part # ends in 921.

beigg · Post by **beigg** » 15 Oct 2016, 20:12

JDM volvo parts!

beigg · Post by **beigg** » 15 Oct 2016, 20:17

matthew1 wrote:Here https://www.matthewsvolvosite.com/forums ... p?p=419401 tryingbe just sold one.

P80 R exhaust manifolds = P2 2.5T manifolds, apparently, so if you're looking for an R manifold you don't have to limit yourself to rare R pieces. Note I don't know if this is physical equal, or end result flow calculation equal.

But Japanese? Never heard of it until tryingbe's FS post above.

The picture in that thread is dead. Any way to revive that image?