MR2 Roadster Owners Club

The Workshop => Performance Related => Topic started by: BahnStormer on November 12, 2019, 09:24

Title: Alibaba Manifolds?
Post by: BahnStormer on November 12, 2019, 09:24
Okay - I think I found the source for the Garage59 manifolds (part numbers from Unilite match), but they only do SS201 in small orders or you have to 30+ to get SS304....

https://www.alibaba.com/product-detail/For-T-oyota-MR-2-MRS_60664564818.html

I've also found these:

https://www.alibaba.com/product-detail/WHOLESALE-NEW-HIGH-QUALITY-FOR-RACING_60684708785.html?spm=a2700.7724838.2017115.501.299b36cfQpJ66f

Any opinions? Worth a punt?
Title: Re: Alibaba Manifolds?
Post by: jvanzyl on November 12, 2019, 09:32
At least the second one quotes the thickness of the walls.. I guess you could get a group buy together - I think there would be fair interest given the price, it's just a bit of an admin bore.

Title: Re: Alibaba Manifolds?
Post by: Topdownman on November 12, 2019, 09:40
Dont forget to factor in import duty and vat for the final price.
Title: Re: Alibaba Manifolds?
Post by: Carolyn on November 12, 2019, 09:48
I don't like the look of the length of the O2 sensor bosses.  I've seen some of these that were very poorly finished inside.

The Toyosport seems to be available again.  Proven quality.

https://www.ebay.co.uk/itm/STAINLESS-STEEL-SPORT-DECAT-EXHAUST-MANIFOLD-TOYOTA-MR2-ROADSTER-1-8-00-07-/202791379957?hash=item2f374ee3f5
Title: Re: Alibaba Manifolds?
Post by: househead on November 18, 2019, 14:09
Cheaper isn't always better :D In fact, it only rarely is!

Toyo is tried and trusted (mostly). Only gripe I have is that the exhaust side flange steel rusts, and water sits nicely on it. Minor gripe though really.
Title: Re: Alibaba Manifolds?
Post by: jvanzyl on November 18, 2019, 14:20
What you REALLY want is a zero mated to a decat topped off with a cobra exhaust... sounds fun!
Title: Re: Alibaba Manifolds?
Post by: shnazzle on November 18, 2019, 14:26
Quote from: jvanzyl on November 18, 2019, 14:20What you REALLY want is a zero mated to a decat topped off with a cobra exhaust... sounds fun!
God that must hurt the ears. 

Knowing how loud mine is, that must be rather noisy
Title: Re: Alibaba Manifolds?
Post by: jvanzyl on November 18, 2019, 14:39
Quote from: shnazzle on November 18, 2019, 14:26
Quote from: jvanzyl on November 18, 2019, 14:20What you REALLY want is a zero mated to a decat topped off with a cobra exhaust... sounds fun!
God that must hurt the ears.

Knowing how loud mine is, that must be rather noisy

Well... you know how it sounds when you're in a tunnel going full pelt on a normal setup and you smile cos it's fun?
It's like that all the time except you don't need a tunnel... mwahaha!

Maybe we'll do a sound test at tonights meet - be interesting to see what it sounds like when someone else revs it.
Title: Re: Alibaba Manifolds?
Post by: Petrus on November 18, 2019, 16:43
Quote from: jvanzyl on November 18, 2019, 14:20God that must hurt the ears.

Knowing how loud mine is, that must be rather noisy

Mine only has a motorcycle ´damper´ and most lilely louder still yet how loud it soúnds depends on your right foot. You´re not supposed to put the foot down in built up areas nor with traffic so who cares if it´s loud when you cán; there will be hardly anyone about!
Title: Re: Alibaba Manifolds?
Post by: BahnStormer on November 21, 2019, 12:04
Quote from: mr2noob on November 18, 2019, 13:25Just to let you know, guys, I was in contact with the alibaba seller, they say delivery is 30-40 USD and freight by air is 100 usd.

Which basically makes Toyosports much better option.

Thanks for the responses (to all) and yes, I'd have to agree that a proven manifold at as similar price seems MUCH more sensible!
Title: Re: Alibaba Manifolds?
Post by: jvanzyl on November 22, 2019, 09:17
Quote from: mr2noob on November 21, 2019, 22:28So, with a completely stock exhaust system, is there any point getting the Toyosport over just taking off the stock manifold and bashing the cats out and then putting it back?

I believe Petrus wrote on this a while back. Something about the length of your header being linked to the length of pipe before it gets to a cavity (gutted precats). anecdotal evidence suggests slightly improved torque....
Title: Re: Alibaba Manifolds?
Post by: BahnStormer on December 15, 2019, 19:08
Quote from: Carolyn on November 12, 2019, 09:48I don't like the look of the length of the O2 sensor bosses.  I've seen some of these that were very poorly finished inside.

The Toyosport seems to be available again.  Proven quality.

https://www.ebay.co.uk/itm/STAINLESS-STEEL-SPORT-DECAT-EXHAUST-MANIFOLD-TOYOTA-MR2-ROADSTER-1-8-00-07-/202791379957?hash=item2f374ee3f5
What else would I need?

20m of heatshield webbing? (two packs of THIS (https://smile.amazon.co.uk/Jspoir-Melodiz-Titanium-Motorcycle-Stainless/dp/B07NNFSXL8/ref=sr_1_2?keywords=Titanium+Car+Motorcycle+Exhaust+Shield+Webbing&qid=1576436741&s=automotive&sr=1-2))
Two of the post-cat lambda sensors (with the longer lead)?
Anything else?
Title: Re: Alibaba Manifolds?
Post by: Carolyn on December 15, 2019, 19:21
Quote from: BahnStormer on December 15, 2019, 19:08
Quote from: Carolyn on November 12, 2019, 09:48I don't like the look of the length of the O2 sensor bosses.  I've seen some of these that were very poorly finished inside.

The Toyosport seems to be available again.  Proven quality.

https://www.ebay.co.uk/itm/STAINLESS-STEEL-SPORT-DECAT-EXHAUST-MANIFOLD-TOYOTA-MR2-ROADSTER-1-8-00-07-/202791379957?hash=item2f374ee3f5
What else would I need?

20m of heatshield webbing? (two packs of THIS (https://smile.amazon.co.uk/Jspoir-Melodiz-Titanium-Motorcycle-Stainless/dp/B07NNFSXL8/ref=sr_1_2?keywords=Titanium+Car+Motorcycle+Exhaust+Shield+Webbing&qid=1576436741&s=automotive&sr=1-2))
Two of the post-cat lambda sensors (with the longer lead)?
Anything else?

One pack will be enough.  Standard length sensors fit fine.  Wrap it on the bench.

Quick edit:  Get genuine OEM crush ring gaskets.  All the others are rubbish.
Title: Re: Alibaba Manifolds?
Post by: BahnStormer on December 15, 2019, 20:00
Quote from: Carolyn on December 15, 2019, 19:21Quick edit:  Get genuine OEM crush ring gaskets.  All the others are rubbish.

Thanks for the quick reply!

Part numbers?

Any recommended suppliers to guarantee it's genuine?
Title: Re: Alibaba Manifolds?
Post by: Carolyn on December 15, 2019, 20:12
Quote from: BahnStormer on December 15, 2019, 20:00
Quote from: Carolyn on December 15, 2019, 19:21Quick edit:  Get genuine OEM crush ring gaskets.  All the others are rubbish.

Thanks for the quick reply!

Part numbers?

Any recommended suppliers to guarantee it's genuine?



Paul at TCB (our affiliate) or Toyota Parts Direct.. Just ask for exhaust crush rings.
Title: Re: Alibaba Manifolds?
Post by: Ardent on December 15, 2019, 20:14
Quote from: mr2noob on November 22, 2019, 13:47I spent such a stupid amount on this car already and I haven't even gotten the bill for taxes yet. :(
Welcome to the club.
Thread on here somewhere, relating exactly to  that. Think most have spent the purchase price at least once some more than once. Me included.

That said, the difference is "wanting" to spend on it, rather than "having" to. Massive difference.

To me, the whole driving thing, MR2 or otherwise, I view as a hobby. Therefore cost takes a much smaller seat at the table of priorities.

I said to a fishyperson, golfist and soccer fan, I could save your thousands of pounds a year. They said how? I said don't do it.
For the life of me, I can see no reason to sit on bank throwing fish food in to the river at great expense. But people do.
They still have to put fuel in their tank, to get to where, they do, what they do.

The fishyperson I know, their kit has cost more than my 2.
Title: Re: Alibaba Manifolds?
Post by: Ardent on December 15, 2019, 20:22
crush rings
90917-06065

https://www.amayama.com/en/catalogs/toyota?_s=h

pop you vin number in
Title: Re: Alibaba Manifolds?
Post by: Zxrob on December 15, 2019, 20:35
Quote from: mr2noob on November 21, 2019, 22:28So, with a completely stock exhaust system, is there any point getting the Toyosport over just taking off the stock manifold and bashing the cats out and then putting it back?

I must be one of the few who went the other way, I have original headers (no pre cats) and a full decat system.

Rob
Title: Re: Alibaba Manifolds?
Post by: H1GRM on December 16, 2019, 07:58
Quote from: Ardent on December 15, 2019, 20:14
Quote from: mr2noob on November 22, 2019, 13:47I spent such a stupid amount on this car already and I haven't even gotten the bill for taxes yet. :(
Welcome to the club.
Thread on here somewhere, relating exactly to  that. Think most have spent the purchase price at least once some more than once. Me included.

That said, the difference is "wanting" to spend on it, rather than "having" to. Massive difference.

To me, the whole driving thing, MR2 or otherwise, I view as a hobby. Therefore cost takes a much smaller seat at the table of priorities.

I said to a fishyperson, golfist and soccer fan, I could save your thousands of pounds a year. They said how? I said don't do it.
For the life of me, I can see no reason to sit on bank throwing fish food in to the river at great expense. But people do.
They still have to put fuel in their tank, to get to where, they do, what they do.

The fishyperson I know, their kit has cost more than my 2.

Hi Jase,

If an angler is a fishy person what is an MR2 enthusiast?
Title: Re: Alibaba Manifolds?
Post by: Ardent on December 16, 2019, 18:06
Quote from: H1GRM on December 16, 2019, 07:58Hi Jase,

If an angler is a fishy person what is an MR2 enthusiast?
An MR2 enthusiast. ;)
Title: Re: Alibaba Manifolds?
Post by: BahnStormer on December 16, 2019, 22:08
Quote from: Ardent on December 15, 2019, 20:22crush rings
90917-06065

https://www.amayama.com/en/catalogs/toyota?_s=h

pop you vin number in

Jase - you star!
Title: Re: Alibaba Manifolds?
Post by: BahnStormer on December 16, 2019, 22:08
Quote from: Carolyn on November 12, 2019, 09:48I don't like the look of the length of the O2 sensor bosses.  I've seen some of these that were very poorly finished inside.

The Toyosport seems to be available again.  Proven quality.

https://www.ebay.co.uk/itm/STAINLESS-STEEL-SPORT-DECAT-EXHAUST-MANIFOLD-TOYOTA-MR2-ROADSTER-1-8-00-07-/202791379957?hash=item2f374ee3f5

Guys and gals - these are £89 now...
Title: Re: Alibaba Manifolds?
Post by: Smithy on January 8, 2020, 16:05
Quote from: Carolyn on November 12, 2019, 09:48I don't like the look of the length of the O2 sensor bosses.  I've seen some of these that were very poorly finished inside.

The Toyosport seems to be available again.  Proven quality.

https://www.ebay.co.uk/itm/STAINLESS-STEEL-SPORT-DECAT-EXHAUST-MANIFOLD-TOYOTA-MR2-ROADSTER-1-8-00-07-/202791379957?hash=item2f374ee3f5
I'm very interested in getting one of these. Is it really necessary to wrap it up? Such a shame to hide it from sight
Title: Re: Alibaba Manifolds?
Post by: Carolyn on January 8, 2020, 16:17
Quote from: Smithy on January  8, 2020, 16:05
Quote from: Carolyn on November 12, 2019, 09:48I don't like the look of the length of the O2 sensor bosses.  I've seen some of these that were very poorly finished inside.

The Toyosport seems to be available again.  Proven quality.

https://www.ebay.co.uk/itm/STAINLESS-STEEL-SPORT-DECAT-EXHAUST-MANIFOLD-TOYOTA-MR2-ROADSTER-1-8-00-07-/202791379957?hash=item2f374ee3f5
I'm very interested in getting one of these. Is it really necessary to wrap it up? Such a shame to hide it from sight
They don't stay shiny very long.

Wrapping isn't utterly required.  BUT it does replace the function of the heat-shield, keeping the manifold gases hotter and speeding them down the exhaust and keeping the engine compartment cooler.  A hot engine compartment allows more heat-soak into the inlet tract and that will have a small negative effect on performance.
I'm of the wrapping persuasion myself.  I have had a well-used toysport develop a crack (it was on my car when I bought it, several years ago).  I welded it up and it's still going.
Title: Re: Alibaba Manifolds?
Post by: Carolyn on January 8, 2020, 16:28
I was going to add:

If you want one jump on it.  They are only made in small batches and then they're out of stock for months.
Title: Re: Alibaba Manifolds?
Post by: Smithy on January 8, 2020, 19:23
Thanks Carolyn that's really helpful. So is A wrapped Manifold as good as a heat shield? In other words should I replace it if I can?
Title: Re: Alibaba Manifolds?
Post by: Smithy on January 8, 2020, 19:52
Thinking about it I don't think that one has a heat shield bracket anyway so wrapping is the only option.
Title: Re: Alibaba Manifolds?
Post by: Carolyn on January 8, 2020, 20:03
Quote from: Smithy on January  8, 2020, 19:23Thanks Carolyn that's really helpful. So is A wrapped Manifold as good as a heat shield? In other words should I replace it if I can?
I reckon a good wrapping job is at least as good.  Get the heavy duty wrap (it's thicker).  10 metres is sufficient.
Also - get some Plusgas (if you haven't already!  Spray all nuts and bolts well in advance.  The nuts between the manifold and cat can be a bit of a bugger. Plenty of spray and work them back and forth and they usually comply in the end.

Another also:)  It's worth buying oem crush-ring gaskets for the manifold the cat connection.  After market ones can be a real let-down.  Paul, at our affiliate, TCB can assist, I'm sure.
Title: Re: Alibaba Manifolds?
Post by: Carolyn on January 9, 2020, 18:26
Quote from: mr2noob on January  9, 2020, 17:55
Quote from: Carolyn on January  8, 2020, 20:03I reckon a good wrapping job is at least as good.  Get the heavy duty wrap (it's thicker).  10 metres is sufficient.

Wasn't there a discussion on another thread last year not to do it if you only have the manifold changes, but have stock midpipe and stock muffler?

Quote from: Carolyn on January  8, 2020, 20:03Another also:)  It's worth buying oem crush-ring gaskets for the manifold the cat connection.  After market ones can be a real let-down.  Paul, at our affiliate, TCB can assist, I'm sure.

The old OEM ones can be used as well, right? On my previous car I reused old ones and had no issue.

Yes lots of people have bad things to say about wrapping.  I disagree. 

I think you got lucky with the crush rings.  I suppose it depends on how old they are.
Title: Re: Alibaba Manifolds?
Post by: shnazzle on January 9, 2020, 21:17
Quote from: Carolyn on January  9, 2020, 18:26
Quote from: mr2noob on January  9, 2020, 17:55
Quote from: Carolyn on January  8, 2020, 20:03I reckon a good wrapping job is at least as good.  Get the heavy duty wrap (it's thicker).  10 metres is sufficient.

Wasn't there a discussion on another thread last year not to do it if you only have the manifold changes, but have stock midpipe and stock muffler?

Quote from: Carolyn on January  8, 2020, 20:03Another also:)  It's worth buying oem crush-ring gaskets for the manifold the cat connection.  After market ones can be a real let-down.  Paul, at our affiliate, TCB can assist, I'm sure.

The old OEM ones can be used as well, right? On my previous car I reused old ones and had no issue.

Yes lots of people have bad things to say about wrapping.  I disagree. 

I think you got lucky with the crush rings.  I suppose it depends on how old they are.
Kevin at Zero Exhausts explained it was down to the metal used.

My stock wrapped mani cracked like an egg. I wrapped it. 
I fully intend to wrap my Zero manifold in the summer when I can be arsed to pull it off. 

As for the cheap ebay. Wrap them. They might crack after years and years. Then just buy another one. They're cheap as chips anyway.
Title: Re: Alibaba Manifolds?
Post by: Smithy on January 14, 2020, 20:14
Toyosport back to £89. I've just ordered one. ;D
Title: Re: Alibaba Manifolds?
Post by: J88TEO on January 15, 2020, 09:34
Mine from Tpyosports is in the storeroom awaiting better weather...together with brake discs and pads ( front and rear )...
Title: Re: Alibaba Manifolds?
Post by: Smithy on January 30, 2020, 21:38
My new manifold doesn't have any cut outs for crush gaskets . Is this right?
Title: Re: Alibaba Manifolds?
Post by: Smithy on January 30, 2020, 21:40
And flat gaskets?
Title: Re: Alibaba Manifolds?
Post by: Gaz mr-s on January 30, 2020, 22:07
That's how they come.  I've got a flat flange pipe on mine working with crush rings.
Re-use the existing head gasket. A bit of a clean won't do any harm. If you want a new one I have one that I haven't used.
Title: Re: Alibaba Manifolds?
Post by: Smithy on January 30, 2020, 22:27
Oh thanks for the reassurance I thought I had it wrong. I will try to use my gasket but will take you up on the offer if it's not any good. Thanks again
Title: Re: Alibaba Manifolds?
Post by: Gaz mr-s on January 30, 2020, 22:35
Quote from: Smithy on January 30, 2020, 22:27Oh thanks for the reassurance I thought I had it wrong. I will try to use my gasket but will take you up on the offer if it's not any good. Thanks again

Just to clarify...I wouldn't use the cat flange gasket.
Title: Re: Alibaba Manifolds?
Post by: Smithy on February 10, 2020, 13:45
Good afternoon all.
I'm going to wrap my Toyosport manifold this week sometime. I got the wrap that Carolyn recommended. I want to do a good job that will last and I've heard that if a gap is present then a crack could form, is that true? Many thanks.
Title: Re: Alibaba Manifolds?
Post by: Carolyn on February 10, 2020, 14:00
Quote from: Smithy on February 10, 2020, 13:45Good afternoon all.
I'm going to wrap my Toyosport manifold this week sometime. I got the wrap that Carolyn recommended. I want to do a good job that will last and I've heard that if a gap is present then a crack could form, is that true? Many thanks.
I reckon there's a lot more stories about cracks than there are cracks.  50% overlap is the way to go. You have enough with 10 metres not to have any gaps.

Secure with plastic tie-wraps at first, then use the stainless ones once you're happy.
I like to wet it first, it helps it to conform to the shape.  Long sleeves and gloves are highly advised.

It's a very satisfying little job.
Title: Re: Alibaba Manifolds?
Post by: Smithy on February 10, 2020, 14:39
Thank you Carolyn. so if an area wasn't wrapped sufficiently obviously heat would build up in that area, would that product a possible danger area for a potential crack?
Title: Re: Alibaba Manifolds?
Post by: tricky1138 on February 10, 2020, 14:51
Quote from: Carolyn on February 10, 2020, 14:00
Quote from: Smithy on February 10, 2020, 13:45Good afternoon all.
I'm going to wrap my Toyosport manifold this week sometime. I got the wrap that Carolyn recommended. I want to do a good job that will last and I've heard that if a gap is present then a crack could form, is that true? Many thanks.
I reckon there's a lot more stories about cracks than there are cracks.  50% overlap is the way to go. You have enough with 10 metres not to have any gaps.

Secure with plastic tie-wraps at first, then use the stainless ones once you're happy.
I like to wet it first, it helps it to conform to the shape.  Long sleeves and gloves are highly advised.

It's a very satisfying little job.


Adding to that Carolyn, how do you stop gaps if you have the heatshield brackets on the manifold, or should you remove them if you're wrapping?
Title: Re: Alibaba Manifolds?
Post by: Carolyn on February 10, 2020, 15:04
If it has the brackets it's not a genuine Toyosport.  Never mind....  check inside to make sure the pipe joints are flush - not sticking out into the flow.

Some are Ok some not so....

I'd chop the the heat-shield brackets off - but keep the brackets for mounting to the block.  Some people just keep the brackets and use the original heat-shield.

Up to you :)

Title: Re: Alibaba Manifolds?
Post by: tricky1138 on February 10, 2020, 15:07
Quote from: Carolyn on February 10, 2020, 15:04If it has the brackets it's not a genuine Toyosport.  Never mind....  check inside to make sure the pipe joints are flush - not sticking out into the flow.

Some are Ok some not so....

I'd chop the the heat-shield brackets off - but keep the brackets for mounting to the block.  Some people just keep the brackets and use the original heat-shield.

Up to you :)



I'll get a photo of mine. Says Toyosport on in, but has heatshield brackets and no, the flange is not flush either! Not sure what gasket is needed there. I was going to try the normal crush circular ones.
Title: Re: Alibaba Manifolds?
Post by: Carolyn on February 10, 2020, 15:32
Quote from: tricky1138 on February 10, 2020, 15:07
Quote from: Carolyn on February 10, 2020, 15:04If it has the brackets it's not a genuine Toyosport.  Never mind....  check inside to make sure the pipe joints are flush - not sticking out into the flow.

Some are Ok some not so....

I'd chop the the heat-shield brackets off - but keep the brackets for mounting to the block.  Some people just keep the brackets and use the original heat-shield.

Up to you :)



I'll get a photo of mine. Says Toyosport on in, but has heatshield brackets and no, the flange is not flush either! Not sure what gasket is needed there. I was going to try the normal crush circular ones.

Pipes sticking out on the bottom flange are ok - helps locate crush rings.  I meant the internal joints.  Have a peek up the inside!