performance manifold and sports cat queries

[elf]

i am goin to purchase a janspeed manifold and sports cat from ptp. do i need to get the manifold heat wrap as well as i have read mixed reviews?

they dont specify a sports cat for the rover 200 brm it is just for mg zr's!
i presume that i order the zr 160 one and not the one for the 105+ 120 with the zr 160 one being for the 1.8 vvc. is this correct?

[Adam]

Yep, you need the ZR160 manifold and sports cat, fits perfectly fine on the BRM.

Dont bother with heat wrap, you dont need it and if moisture gets trapped under it then you'll rot the manifold over time.

[marc_brm]

i've got a janspeed manifold and its spot on. but make sure you get a cat pipe that fits. i've had a nightmare getting mine to mach up. dont recommend heat wrap. pain in the arse to fit and doesn't improve things much. if you do decide to use some look around for boat engine specialists cos they use it and get it a lot cheaper!

[elf]

ptp have got back to me and they have said that the zr 160 parts are ok but they use a two bolt flange to connect where as the brm uses a three bolt flange?? they have basically said that the three bolt flange will cost £20 and then it will take 4 hours to weld the flange on, then fit the manifold and cat. they charge £50 an hour for labour. I think this is a bit expensive and dont even know if this flange is needed which is costing me £110 in parts and labour together. does anyone know if what they are saying is true??

[Dom]

if you're using a zr160 manifold it should have a 2 bolt flange on the end?

[elf]

i think it is the cat that they are on about can you shed any light?

[Dom]

this is the standard rover 200 exhaust:

http://www.onlineautomotive.co.uk/images/admin/system_images/646643.png

If you've got a ZR160 manifold, I'd say the ZR160 cat should fit (then obviously need to follow with the rest of the system backwards!)

www.onlineautmotive.co.uk
www.leisureshack.co.uk

[Frekkel]

ptp have got back to me and they have said that the zr 160 parts are ok but they use a two bolt flange to connect where as the brm uses a three bolt flange?? they have basically said that the three bolt flange will cost £20 and then it will take 4 hours to weld the flange on, then fit the manifold and cat. they charge £50 an hour for labour. I think this is a bit expensive and dont even know if this flange is needed which is costing me £110 in parts and labour together. does anyone know if what they are saying is true??

it's true about the bolt flanges, just buy a middle pipe for a zr that has a 2 bolt flange at the side of the sportcat and it has on the other side (where the backbox comes) the same flange of a brm. that might be cheaper and you can sell your middle pipe to someone else.

no thx for the great advise that I give ;)

[elf]

thanks mate will check how much and see if it will be worth it!!

[Frekkel]

keep me informed, I'm also looking for a manifold and sportscat. but maybe I do the whole zr system then, because I'm maybe looking for a zr rearbumper.

[BRaMbLE]

Hi,

Could this be an option for you? Very cheap...

http://cgi.ebay.co.uk/MG-ZR-Janspeed-Tubular-Manifold-X-Power-1-4-1-8_W0QQitemZ140134658352QQihZ004QQcategoryZ72205QQc mdZViewItem

Has anyone seen these fitted to a Vi or BRM (or VVC in general). Spoken to the guy and he says he has fitted loads to metros powered by 1.8 and MGFs and he has sold the to many ZR owners - including ZR160s, and they havent come back or complained or anything. But he hasn't fitted one to a rover 200 himself. He has kindly said - since I am up the road I can buy one and return it if it doesnt fit.

He is taking one home for me to look at tonight - but what am I looking at? It appears to be a Janspeed 4-2-1. And looking at the shop on the janspeed website - there are 3 - but all with the same part code.. This is an x-power one he got from a company that went under - he had about 25 or so.

Does anyone happen to have (like you would...) the dimensions or tube size etc of the janspeed manifold? Even just a measurement of tube diameter and distance apart etc would help.

Many thanks

[Adam]

I cant think of it off the top of my head, but the person to speak to is Matthew Stone at Janspeed. He should be able to help you with any queries you have, hth.

[elf]

ptp are getting back to me on a date to have the manifold and sports cat put on. the price was a bit more than i was expecting but it seems they were right about the flanges and not just trying to rip me off. just goin to pay the money and get it done, least i know it will be right!!

[splingebucket]

Hi Adam

I've been running with a de-cat pipe as my cat is near the end, (so the MOT man said) but reading your esteemed thoughts on the VVC running better with a sports cat, do you have any thoughts on this

http://www.sportcats.co.uk/product_info.php?cPath=2_37_38&products_id=864&osCsid=faedee08981f36

I would appreciate your considered opinion

Eric

Yep, you need the ZR160 manifold and sports cat, fits perfectly fine on the BRM.

Dont bother with heat wrap, you dont need it and if moisture gets trapped under it then you'll rot the manifold over time.

[Adam]

Not had any experience of that particular sports cat, but I can say that the Janspeed sports cat is very good. Enabled me to pass 3 MOT's now (although only just) and retain an increase in performance, although that is coupled with the manifold, backbox and interpipe.

Was doing some measuring up at the weekend of the Janspeed kit and comparing it to research on exhaust lengths, diameters, etc. The primaries and secondaries for the manifold are basically there for the optimum length, although it appears that the rest of the system is actually a little too large in diameter for optimum performace. Goodness knows how a de-cat would fare, but the increased diameter again over the sports cat, along with the loss of back-pressure can't be very beneficial for the engine.

Anyhoo, enough of my boring rambles, I would say go for it with that sports cat. Would be an improvement over a standard cat and avoid the problems of the de-cat.

Hope that's of some use.

[splingebucket]

Thank you Adam

I contacted James Bayfield of Janspeed and he tells me they don't offer a sports cat for a BRM. Can you shed any light on this one particularly as you have a system up and running and all is Tickerty Bo?

Eric

[Adam]

Sorry, I forgot to say, I purchased the ZR160 manifold, sports cat, interpipe and the Rover 200vi backbox.

There is one bracket that needs altering on the interpipe, apart from that its identical.

[splingebucket]

Sorry, I forgot to say, I purchased the ZR160 manifold, sports cat, interpipe and the Rover 200vi backbox.

There is one bracket that needs altering on the interpipe, apart from that its identical.

I found one, for those who are interested try Hoffman at http://www.sportcats.co.uk/product_info.php?cPath=2_37_38&products_id=864&osCsid=1fd48f8aeb4b5a8d2f491d74c9

It fits a treat with the 3 bolt flange and looking forward to the results of the emission test when the MOT is due.

Eric