exhaust system on spyder

[izzlizzy]

Hi,firstly Thank you for accepting me as a member.
Since I dont own any Manuel, the mr2 spyder is new to me, am I right it has two standard cats, one at the head and the other in the middle, is this correct?
Am I right it has two middle pipes or one?
Thanks.

[shnazzle]

Hi,firstly Thank you for accepting me as a member.
Since I dont own any Manuel, the mr2 spyder is new to me, am I right it has two standard cats, one at the head and the other in the middle, is this correct?
Am I right it has two middle pipes or one?
Thanks.

It indeed has two cats. 

One is incorporated into the exhaust manifold, the other is in the mid-pipe.
The first one doesn't require the same amount of heat and is active at first startup (or soon after) and the 2nd one is thr main one that helps you pass MOT

[Carolyn]

To be more precise:

The exhaust manifold has two 'pre-cats' built into it.  As Shnazzle says, they don't affect an mot pass - they are just for cleaner start-up.

The 'midpipe' is the main cat. There is no 'midpipe',as such.

[Petrus]

To be more precise:

The exhaust manifold has two 'pre-cats' built into it.  As Shnazzle says, they don't affect an mot pass - they are just for cleaner start-up.

The 'midpipe' is the main cat. There is no 'midpipe',as such.

To be more precise still ;-)

The main cat needs to be properly warmed up to pass MoT emission test. The catalist does not work unless at operating temperature which is quite hot. Quite a few ´fails´ can be prevented by making sure the cat is wórking.

If i had not been acutely aware if this mine would have failed in Oktober. Had been waiting a bit long for my number to pop up and than was called to drive up immediately. Told the tester that the cat had to warm up and we could séé it on the tester. Quite neat actually.

[shnazzle]

To be EVEN more precise

The first two cats are the same "stage", next to each other in the manifold. One fed by 2 cylinders, the other fed by the other 2  

So it's a 2-stage emissions control. But you couldn't split the first 2 cats.

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[Ardent]

Dear @izzlizzy

You may have noticed we are an enthusiastic bunch.

All we want is the best for you and your 2.

My opening gambit is always to carry out a service yourself, regardless of what history it came with.

BTW with love pics.

Don't waste time looking a manual. There isn't one. (Least not in the context you mean) all info and some, is in here. Somewhere.

[izzlizzy]

Thank you everyone much appreciated, I am old man racer, 65 in March, single, my love of sport's cars started  with a Triumph TR6, ( I owned two) in the Seventies, I wanted a Ferrari Dino, was about to get one when I was involved in a shot gun wedding, I was a bit of a boy racer on the public highway until a nice police officer read me the riot act, he probably saved my life, the best advice he gave me was racing on public roads is not on, if you want to race go to the track, after he caught me doing 90 and going through a red light at 3am on a sunday morning coming back from Brighton in the summer of 1976. What a summer that was six weeks of 100 plus.I happy to say I took that advice and joined the Jim Russel racing school at Silverston, driving formular ford Van damian, they didnt teach me what I already knew about driving, but the track I didnt know that well, it didnt take me long to get used to toe and heel and the gear change with your right hand, the gear lever was a tiny metal stick that run along a pipe line on the rightside of the cockpit. The racing line comes naturally, the breaking area's didnt take long to get used to as Silverstone is a very fast track, flat out mostly.
My instructor always complained I was going over the rev limit, going to fast, Silverstone for some reason was always raining when I went, thats why they was a restriction on speed, since they was no speed clock, only rev counter, which could belimited to 5000 RPM I used to do 7500 RPM about 125 mph
I used todo that regular in my TR6, the only skill I was desperate to learn was how to use the rear end in a shunt, like all racing drivers thats one of the skills you need, how to use the rear in a shunt instead of the front, thats why you see racing drivers using the rear of the car to take the impact when they go off, otherwise you probably loose your legs. The Jim Russel racing school was very well known, its had a few world champions like Nigel Mansell and a few more which my memory forgotton.
I was all about to start racing in formula ford, using the schools cars and I had sponsorship from a tyre company and the company I worked for, they were to pay all my expenses all the running costs.
To race at six tracks and finish, you get your racing licence stamped then that X disappeared.
Until the shot gun wedding ended my dreams.I followed all motor racing and I had a mate racing every weekend in the spaceframe minis group, he was a mechanic and did all the work himself on his car, which was very quick, 850 engine producing more hp than my TR6, 140 MPH.
You see im not used to all the new modcons on todays cars, the MR2S has beautiful racing lines, just shame about the twin cam engine 1.8 engine, which is similar to the RS Escort which I used to beat in a race regularly, the MR2S should have had a V6. Im not intoTurbo's,  V6 in a spyder you virtually have a Dino. The thing I like about the MR2S is its gearbox, you can easily do 40 in fifth gear and cruise in fourth doing 30mph if your fuel economy minded, in my day a galleon of petrol was 50p, the TR6 did 10 mpg at 100 mph you be lucky to get 15mpg in town.The TR was a lovely designed car, only drawback was the useless Lucas fuel injection system, absolutely crap, owners later changed over to Borsch system which was much better, or over to Webber carbs.

[1979scotte]

Thank you everyone much appreciated, I am old man racer, 65 in March, single, my love of sport's cars started  with a Triumph TR6, ( I owned two) in the Seventies, I wanted a Ferrari Dino, was about to get one when I was involved in a shot gun wedding, I was a bit of a boy racer on the public highway until a nice police officer read me the riot act, he probably saved my life, the best advice he gave me was racing on public roads is not on, if you want to race go to the track, after he caught me doing 90 and going through a red light at 3am on a sunday morning coming back from Brighton in the summer of 1976. What a summer that was six weeks of 100 plus.I happy to say I took that advice and joined the Jim Russel racing school at Silverston, driving formular ford Van damian, they didnt teach me what I already knew about driving, but the track I didnt know that well, it didnt take me long to get used to toe and heel and the gear change with your right hand, the gear lever was a tiny metal stick that run along a pipe line on the rightside of the cockpit. The racing line comes naturally, the breaking area's didnt take long to get used to as Silverstone is a very fast track, flat out mostly.
My instructor always complained I was going over the rev limit, going to fast, Silverstone for some reason was always raining when I went, thats why they was a restriction on speed, since they was no speed clock, only rev counter, which could belimited to 5000 RPM I used to do 7500 RPM about 125 mph
I used todo that regular in my TR6, the only skill I was desperate to learn was how to use the rear end in a shunt, like all racing drivers thats one of the skills you need, how to use the rear in a shunt instead of the front, thats why you see racing drivers using the rear of the car to take the impact when they go off, otherwise you probably loose your legs. The Jim Russel racing school was very well known, its had a few world champions like Nigel Mansell and a few more which my memory forgotton.
I was all about to start racing in formula ford, using the schools cars and I had sponsorship from a tyre company and the company I worked for, they were to pay all my expenses all the running costs.
To race at six tracks and finish, you get your racing licence stamped then that X disappeared.
Until the shot gun wedding ended my dreams.I followed all motor racing and I had a mate racing every weekend in the spaceframe minis group, he was a mechanic and did all the work himself on his car, which was very quick, 850 engine producing more hp than my TR6, 140 MPH.
You see im not used to all the new modcons on todays cars, the MR2S has beautiful racing lines, just shame about the twin cam engine 1.8 engine, which is similar to the RS Escort which I used to beat in a race regularly, the MR2S should have had a V6. Im not intoTurbo's,  V6 in a spyder you virtually have a Dino. The thing I like about the MR2S is its gearbox, you can easily do 40 in fifth gear and cruise in fourth doing 30mph if your fuel economy minded, in my day a galleon of petrol was 50p, the TR6 did 10 mpg at 100 mph you be lucky to get 15mpg in town.The TR was a lovely designed car, only drawback was the useless Lucas fuel injection system, absolutely crap, owners later changed over to Borsch system which was much better, or over to Webber carbs.

Got out buy an MR2 mk2

Swap engine to 1mz or 2gr V6

Fit Ferrari Dino kit.

Simples.

[shnazzle]

Great sorry. 
Quite a difference between Dino and MR2  
Got the better one of the two hahaa

[Petrus]

Great sorry.
Quite a difference between Dino and MR2
Got the better one of the two hahaa

and the strong point of the 1ZZ-FE fuel consumption is not excatly ditto if it would have had a V6 no?!