Big journey new project/scrapper

[David Nock (RIP)]

100% agree with Ian, exactly what I was going to say, including my dealings with Rotechniks - very helpful and good service of parts by post.

[RamoNZ]

Moorage - any luck rummaging around in your shed? You didn\'t happen to find a pair of front brake calipers too?
 
Mick - got any pics of the exhaust? Once you get the headers off, you should be able to see if the exhaust housing is ported - be interesting to know.

[mooragerx7]

Moorage - any luck rummaging around in your shed? You didn\'t happen to find a pair of front brake calipers too?

will be having a look tomorrow no such luck with the calipers though mate

[kiwi-mick]

You\'ll probably find that this is a full stainless system.
The silencers are a higher grade stainless steel than the tubes, as it\'s the silencers that collect more condensation inside them and rust out first on most cars.
The tubes are still \'stainless\', but are a lower grade allowing for a bit of flexibility in the system.
100% pure stainless steel would fracture from time to time due to the movement in the system.
This is why the \' full stainless systems\' tend to have a bit of surface corrosion on the tubular parts of the system..... most still come with lifetime guarantees though, which shows the confidence the manufacturers have in them.
 
Many people think that stainless steel is 100% pure and won\'t rust but most stainless isn\'t
Find some stainless ( in you kitchen for example) and put a magnet on it.
If it sticks, it\'s not 100% pure.
 
I can\'t see Rotechniks deliberately mis-describing this exhaust and charging over the top for it.
In my dealings with them, Ive found them to be spot on.

Hi Ian i asume you mean i grade such as 409 which works well at high temps and gets a slight coating of surface rust which actually helps prevent rust forming deep into the metal and is significantly cheaper option. i wasn\'t expecting polished 304 grade(or 316,321,309,441 or the new titanium alloys) which you can keep shiny as all hell but these look like mild steel to me, i\'ll take some pic\'s for the post so you can see what i mean, i work around a lot of different grade stainless steels in an industrail plant which generates it\'s own power(100MWe) and i\'ve never seen any grade of stainless look like this...

[Ian65]

Hi Ian i asume you mean i grade such as 409 which works well at high temps and gets a slight coating of surface rust which actually helps prevent rust forming deep into the metal and is significantly cheaper option. i wasn\'t expecting polished 304 grade(or 316,321,309,441 or the new titanium alloys) which you can keep shiny as all hell but these look like mild steel to me, i\'ll take some pic\'s for the post so you can see what i mean, i work around a lot of different grade stainless steels in an industrail plant which generates it\'s own power(100MWe) and i\'ve never seen any grade of stainless look like this...

That\'s right Mick, yeah, I think most of the off the shelf stainless systems use 409.
The manufacturers like it cause it\'s cheaper and easier to weld and work with and most buyers don\'t care what it looks like once it\'s under the car as long as it doesn\'t need replacing every couple of years!
They\'re not bothered about a top quality polished system in 304 as long as it\'s cheap and does the job!

I\'ve just taken a \'Double S\' stainless system off the car I broke last month and that looks just like rusty mild steel between the boxes but it is sold as a full stainless system. I put some pics up of it when I get chance.

I always used to think that a stainless exhaust looked like a show stopper for ever and not rust at all but the commonly available, cheaper priced ones do.
I  think \'full stainless system\' is a loose term for it.  Technically, I suppose it is but it\'s not quite what people imagine it to be!

[Ian65]

any news on this car Mick?  had a chance to look at it yet?

[kiwi-mick]

any news on this car Mick? had a chance to look at it yet?

got called out in the middle of swapping exhausts onto the series 2 today, back to hospital baby problems. still no joy. put the exhaust onto the series 2 when i got back and took her for a spin. it\'s got no where near the power of the project car think the project car has at least a mild port or extended port massive difference and noise is different.
thats the good news....
the series 3 looks quite rusty and starting to have all sorts of electrical problems only minor but with so many they are becoming a pain in the rear. and the rear floor well behind passenger seat is flooded with all the rain. def not looking good Ian. sorry to let you down mate i had you earmarked for the fuel tank but...
under the series 2 noticed lots of what looks like mole hills burrowing through underseal in it.. pretty sure i\'m going to need it, again sorry, if i break the series 3 or not i need the series 2 running as i\'m using her as my main vehicle other than a long wheel based extended roof transit(not really practical enough for everyday use and a real headache to park)
that was as far as i got today weather pregnant wife and a neighbour who\'s trying everything to stop my extension going ahead all take a great proportion of my limited time not to mention my son 2 1/2 years old very busy little man..
Ian I will try to decide monday if i\'m going to attempt to scrap or strip, if i scrap, the trailing arm i think you also need is yours. and will get it to you asap
cheers
mick

[Ian65]

got called out in the middle of swapping exhausts onto the series 2 today, back to hospital baby problems. still no joy. put the exhaust onto the series 2 when i got back and took her for a spin. it\'s got no where near the power of the project car think the project car has at least a mild port or extended port massive difference and noise is different.
thats the good news....
the series 3 looks quite rusty and starting to have all sorts of electrical problems only minor but with so many they are becoming a pain in the rear. and the rear floor well behind passenger seat is flooded with all the rain. def not looking good Ian. sorry to let you down mate i had you earmarked for the fuel tank but...
under the series 2 noticed lots of what looks like mole hills burrowing through underseal in it.. pretty sure i\'m going to need it, again sorry, if i break the series 3 or not i need the series 2 running as i\'m using her as my main vehicle other than a long wheel based extended roof transit(not really practical enough for everyday use and a real headache to park)
that was as far as i got today weather pregnant wife and a neighbour who\'s trying everything to stop my extension going ahead all take a great proportion of my limited time not to mention my son 2 1/2 years old very busy little man..
Ian I will try to decide monday if i\'m going to attempt to scrap or strip, if i scrap, the trailing arm i think you also need is yours. and will get it to you asap
cheers
mick

Blimey Mick,
sounds like you\'ve got your hands full at the moment.
Don\'t worry about the tank, I\'ll drop on one sooner or later.
Hope things go well with the new baby...... there\'s more important things to worry about than cars!
Good luck!

[kiwi-mick]

Blimey Mick,
sounds like you\'ve got your hands full at the moment.
Don\'t worry about the tank, I\'ll drop on one sooner or later.
Hope things go well with the new baby...... there\'s more important things to worry about than cars!
Good luck!

my wife says i can rest when i\'m dead...
god even going to build this extension myself as the quotes are sickening £74 for just the shell not even a floor board just ground works,brick and roof and floor joists thats the cheapest quote i\'ve had so far one bloke even wants like £60K if i supply all the materials looking forward to balancing everything over the next 6 months including work as well.
just keep telling myself the house will be worth it when i\'ve got a climate controled workshop with pit and hoist and all my tools with room to move to rebuild my project....

[syebba]

Ur a long time dead!
I got a 30sq/m single storey ext done last year,i sourced mats,still cost £36k!
All builders in london region want £200 > £250 per day,per man!& this is during a recession?
If ur neighbours become a real pain & council turn down ext,u can appeal,it\'s free,office is in bristol.
Oh yeah sorry,this is a RX7 forum.

[Steve-M]

A couple of, hopefully, interesting points about stainless steel (SS) before anybody throws back their newly bought stainless parts;
SS is steel with added chromium>10% + sometimes additional elements.
2 types of SS are magnetic; ferretic and martensitic, martensitic grades can be found in fasteners & cutlery.
409 is a ferretic grade (magnetic) & has the lowest chromium content of any SS, it was designed as a cheap material for exhausts which shows!

I hope I haven\'t come across as an @ss, these are just the useless pub quiz type of things that rattle around upstairs!

[captainbizzaro]

I hope I haven\'t come across as an @ss

Definately not mate gotta love a bit of pub ammo:D