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Racing exhaust MB RT 195

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Racing exhaust MB RT 195

Postby tommy200184 » Sun Sep 26, 2021 9:04 am

Hi, i want to fit a racing exhaust on my MB RT 195.
Someone knows the timings of the cylinder?
I'd like to fit the nordspeed exhaust, it's timings are :
- Transfer port timing : 124°-130°
- Exhaust port timing : 184°-192°
- Blow down timing: 29°-31°

Or could you advice me an adapted exhaust ?
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Re: Racing exhaust MB RT 195

Postby Knowledge » Sun Sep 26, 2021 9:18 am

Hi Tommy.

The RT 195 port timings are on page 81 of Sticky’s “kit book”. I don’t think Martin would be too impressed with me repeating them here as he did a lot of research to come up with these figures in order to sell books.

However, I would say that the port timing of the standard RT 195 kit are very modest and nothing like those you quote for the Nordspeed exhaust. Frankly, I think they would be a mis-match

Others may wish to comment.....
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Re: Racing exhaust MB RT 195

Postby tommy200184 » Sun Sep 26, 2021 9:23 am

No my barrel hasn't been ported.
If I understand, the nordspeed isn't adapted for thr RT.
Which exhaust would work fine?
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Re: Racing exhaust MB RT 195

Postby Warkton Tornado No.1 » Sun Sep 26, 2021 12:52 pm

Nowadays there is a huge choice of top end kits available & you decided to buy into the MB product range.

I will say that MB is never short of an opinion (even if it results in him being removed from Ray Kemp's Christmas card list when he slagged off the Rapido) so I looked on MB's website...Shhhh! :oops:

On the RT set up page, this is what is said:

"Try to avoid the latest range of ''Race'' exhausts on the market"

I say this with all sincerity, with you having bought the product, & in fairness to MB ( :roll: ) I think the best place you should be researching your requirement is via the MB website if you intend to leave the kit standard ;)
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Re: Racing exhaust MB RT 195

Postby tommy200184 » Mon Sep 27, 2021 5:35 pm

Ok, thank you
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Re: Racing exhaust MB RT 195

Postby corrado » Mon Sep 27, 2021 8:55 pm

No real mention of exhausts (that I could see on a quick once over) in the BGM instruction manual, in the carb section it gives jetting recommendations for various carbs and with the exception off a Taffspeed all exhausts are BGM big box.
https://www.scooter-center.com/media/pd ... n_c214.pdf
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Re: Racing exhaust MB RT 195

Postby Warkton Tornado No.1 » Tue Sep 28, 2021 11:53 am

corrado wrote:No real mention of exhausts (that I could see on a quick once over) in the BGM instruction manual, in the carb section it gives jetting recommendations for various carbs and with the exception off a Taffspeed all exhausts are BGM big box.
https://www.scooter-center.com/media/pd ... n_c214.pdf


https://www.mbscooters.co.uk/info/mb-*- ... t+255.html
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Re: Racing exhaust MB RT 195

Postby tommy200184 » Tue Sep 28, 2021 6:11 pm

I will finally fit a BGM big box, when it will be available
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Re: Racing exhaust MB RT 195

Postby ULC Soulagent » Wed Sep 29, 2021 6:20 pm

tommy200184 wrote:I will finally fit a BGM big box, when it will be available

Which type?
The V4 or the new clubman sports?
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Re: Racing exhaust MB RT 195

Postby tommy200184 » Thu Sep 30, 2021 10:58 am

BGM.JPG


The new clubman sport
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Re: Racing exhaust MB RT 195

Postby ULC Soulagent » Thu Sep 30, 2021 5:54 pm

tommy200184 wrote:
BGM.JPG


The new clubman sport

Good choice 8-)
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Re: Racing exhaust MB RT 195

Postby martyn dwane » Fri Oct 01, 2021 12:20 pm

any idea of the pipe size from the box to silencer ?
Last edited by martyn dwane on Sat Oct 02, 2021 9:21 am, edited 1 time in total.
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Re: Racing exhaust MB RT 195

Postby Fast n Furious » Fri Oct 01, 2021 6:13 pm

Oily exhaust exit just in front of the rear tyre....... Hmmmm.
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Re: Racing exhaust MB RT 195

Postby corrado » Mon Oct 04, 2021 8:12 pm



Ah, in my defence I was quoting from the Scooter center booklet that comes with the kit and not MB's website.
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Re: Racing exhaust MB RT 195

Postby tommy200184 » Fri Oct 29, 2021 7:41 am

The BGM clubman sport is still not available.
What do you think of the JL KRP1. Can it work well with the MB Rt 195?
krp1-e.JPG
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Re: Racing exhaust MB RT 195

Postby Storkfoot » Fri Oct 29, 2021 8:27 am

As far as I know, the JL1 exhaust you refer to hasn’t been made for many a year, sadly.
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Re: Racing exhaust MB RT 195

Postby tommy200184 » Fri Oct 29, 2021 1:36 pm

I've ordered one.... I will tell you how it works
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Re: Racing exhaust MB RT 195

Postby Storkfoot » Fri Oct 29, 2021 2:50 pm

tommy200184 wrote:I've ordered one.... I will tell you how it works


Well that is a bit of a surprise. I have just searched and it appears that SIP have got Jim Lomas to start making them again.

Did you buy from SIP or from a UK Supplier?
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Re: Racing exhaust MB RT 195

Postby tommy200184 » Fri Oct 29, 2021 3:16 pm

I found it at Jockey's Boxenstop, but I think it was the last one because it's now not available on the web site.
I hope i will receive it...
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Re: Racing exhaust MB RT 195

Postby Storkfoot » Fri Oct 29, 2021 5:26 pm

tommy200184 wrote:I found it at Jockey's Boxenstop, but I think it was the last one because it's now not available on the web site.
I hope i will receive it...


If they operate like Scooter Center in Germany too, you’ll be contacted by the courier to pay the VAT and ancillary charges. Once that is paid, they’ll deliver it.

Actually looks like you can order direct from JL, if no UK dealer starts selling them again.

https://www.jl-exhausts.com/
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