MR2 Roadster Owners Club

The Workshop => General => Topic started by: tricky1138 on February 19, 2020, 11:17

Title: Any ideas what manifold this is?
Post by: tricky1138 on February 19, 2020, 11:17
I've finally got round to fitting my manifold I bought ages ago. I was sure it was a Toyosports one, but after digging it out from the back of my garage I'm sure its not.

Any ideas what it is, or is it just a generic ebay one?

manifold3.jpg

manifold4.jpg

manifold1.jpg

manifold2.jpg
Title: Re: Any ideas what manifold this is?
Post by: delhusband on February 19, 2020, 11:34
The 2nd hand Toyosport I had (briefly) had a plate with a chequered flag logo and "toyosport" stamped on it
Title: Re: Any ideas what manifold this is?
Post by: delhusband on February 19, 2020, 11:38
Zoom in on the pictures here @tricky1138 

linky (https://www.mr2roc.org/forum/index.php?msg=779102)
Title: Re: Any ideas what manifold this is?
Post by: tricky1138 on February 19, 2020, 11:44
Quote from: delhusband on February 19, 2020, 11:34The 2nd hand Toyosport I had (briefly) had a plate with a chequered flag logo and "toyosport" stamped on it

Yeah, I was positive mine had that. Maybe I've just seen it on others and wrongly presumed!
Title: Re: Any ideas what manifold this is?
Post by: househead on February 19, 2020, 11:54
Quote from: tricky1138 on February 19, 2020, 11:44
Quote from: delhusband on February 19, 2020, 11:34The 2nd hand Toyosport I had (briefly) had a plate with a chequered flag logo and "toyosport" stamped on it

Yeah, I was positive mine had that. Maybe I've just seen it on others and wrongly presumed!

My Toyosports bought off ebay in July last year has the flag logo and Toyosport stamped on it.

That one doesn't look like my Toyosport, that's all I can say. Mine doesn't have any supports on the midpipe end or any mounting points for the heatshield.
Title: Re: Any ideas what manifold this is?
Post by: jvanzyl on February 19, 2020, 15:05
Take a metal ruler to the head plate- if it's straight it's a good one, if not it's a JHM (I think)
Title: Re: Any ideas what manifold this is?
Post by: wotugonado on February 19, 2020, 18:04
It looks very much like the one I had from America, better than the toyosports, the heat shield brackets never lined up very well though so that would be the tell.

Edit
Rumour had it, it was a che top speed one
Title: Re: Any ideas what manifold this is?
Post by: Call the midlife! on February 19, 2020, 18:13
The Hamish/Garage 59 one I had had the same square section bar welded as the heat shield mounts with different sized threads tapped in them.
Title: Re: Any ideas what manifold this is?
Post by: Beachbum957 on February 19, 2020, 18:29
It looks like a typical eBay manifold, but the problem is there have been many different manufacturers with differing quality and features.  Some were mild steel, while most are some grade of SS.  Some used stamped manifold flanges, and some used a thicker plate flange.  Some had a proper recess at the bottom for the OEM "donuts", while others just used a flat flange and gasket.  Some people consider the Che manifold as the best, but over the years they have sold many different versions.

Stamped Manifold flange (https://www.ebay.com/itm/FOR-00-05-MR2-SPYDER-MRS-ZZW30-1ZZ-FED-STAINLESS-RACING-HEADER-MANIFOLD-EXHAUST/202786310732?fits=Year%3A2003%7CModel%3AMR2+Spyder%7CSubmodel%3ABase%7CEngine+-+Liter_Display%3A1.8L%7CMake%3AToyota%7CTrim%3ABase+Convertible+2-Door%7CEngine%3A1.8L+1794CC+l4+GAS+DOHC+Naturally+Aspirated&hash=item2f37018a4c:g:l5AAAOSwwJVdiuMm)

Solid Plate Manifold flange (https://www.ebay.com/itm/99-07-MR2-SPYDER-MRS-ZZW30-1ZZ-FED-MR-S-Stainless-Header-Exhaust-Manifold/122005241172?fits=Year%3A2003%7CModel%3AMR2+Spyder%7CSubmodel%3ABase%7CEngine+-+Liter_Display%3A1.8L%7CMake%3AToyota%7CTrim%3ABase+Convertible+2-Door%7CEngine%3A1.8L+1794CC+l4+GAS+DOHC+Naturally+Aspirated&hash=item1c68143d54:g:tWYAAMXQPatTGWA4)

The one common characteristic is they all seem to have poor fit for the heatshields!

I have bought 2 for 2 different MR2's and just went with the cheapest (stamped manifold flange).  One key to header survival is to use the FL cast lower mounts, which are much stiffer than the PFL stamped mounts and use OEM gaskets.  One has been on one car for over 10 years with no issues.
Title: Re: Any ideas what manifold this is?
Post by: tricky1138 on February 19, 2020, 19:22
Quote from: wotugonado on February 19, 2020, 18:04It looks very much like the one I had from America, better than the toyosports, the heat shield brackets never lined up very well though so that would be the tell.

Edit
Rumour had it, it was a che top speed one

I thought the heat shield was going to line up but checked again and it's just off!
Title: Re: Any ideas what manifold this is?
Post by: tricky1138 on February 19, 2020, 19:23
Quote from: jvanzyl on February 19, 2020, 15:05Take a metal ruler to the head plate- if it's straight it's a good one, if not it's a JHM (I think)

Straight! :)
Title: Re: Any ideas what manifold this is?
Post by: tricky1138 on February 19, 2020, 19:26
Quote from: Beachbum957 on February 19, 2020, 18:29It looks like a typical eBay manifold, but the problem is there have been many different manufacturers with differing quality and features.  Some were mild steel, while most are some grade of SS.  Some used stamped manifold flanges, and some used a thicker plate flange.  Some had a proper recess at the bottom for the OEM "donuts", while others just used a flat flange and gasket.  Some people consider the Che manifold as the best, but over the years they have sold many different versions.

Stamped Manifold flange (https://www.ebay.com/itm/FOR-00-05-MR2-SPYDER-MRS-ZZW30-1ZZ-FED-STAINLESS-RACING-HEADER-MANIFOLD-EXHAUST/202786310732?fits=Year%3A2003%7CModel%3AMR2+Spyder%7CSubmodel%3ABase%7CEngine+-+Liter_Display%3A1.8L%7CMake%3AToyota%7CTrim%3ABase+Convertible+2-Door%7CEngine%3A1.8L+1794CC+l4+GAS+DOHC+Naturally+Aspirated&hash=item2f37018a4c:g:l5AAAOSwwJVdiuMm)

Solid Plate Manifold flange (https://www.ebay.com/itm/99-07-MR2-SPYDER-MRS-ZZW30-1ZZ-FED-MR-S-Stainless-Header-Exhaust-Manifold/122005241172?fits=Year%3A2003%7CModel%3AMR2+Spyder%7CSubmodel%3ABase%7CEngine+-+Liter_Display%3A1.8L%7CMake%3AToyota%7CTrim%3ABase+Convertible+2-Door%7CEngine%3A1.8L+1794CC+l4+GAS+DOHC+Naturally+Aspirated&hash=item1c68143d54:g:tWYAAMXQPatTGWA4)

The one common characteristic is they all seem to have poor fit for the heatshields!

I have bought 2 for 2 different MR2's and just went with the cheapest (stamped manifold flange).  One key to header survival is to use the FL cast lower mounts, which are much stiffer than the PFL stamped mounts and use OEM gaskets.  One has been on one car for over 10 years with no issues.

It's a solid flange and also has recess for the donuts!

I also have a facelift so the cast mounts will be going back on.

Now just to wrap it and get it installed!
Title: Re: Any ideas what manifold this is?
Post by: wotugonado on February 19, 2020, 20:11
Quote from: tricky1138 on February 19, 2020, 19:22
Quote from: wotugonado on February 19, 2020, 18:04It looks very much like the one I had from America, better than the toyosports, the heat shield brackets never lined up very well though so that would be the tell.

Edit
Rumour had it, it was a che top speed one

I thought the heat shield was going to line up but checked again and it's just off!

Sounds very much like the che one then.
If it is che, Mwr still sell em for about 280.00 dollars. You might have a bit of a bargain there.
Title: Re: Any ideas what manifold this is?
Post by: Call the midlife! on February 19, 2020, 21:05
The Hamish lower shield mounts were useless, didn't match the holes on the shield, I ended up drilling new holes in the shield and trimming around an inch off the top so the upper shield would fit over it.