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 Grisso twin pipes

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Carlotto
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PostSubject: Grisso twin pipes   Fri Jul 28, 2017 2:14 am

OK . Took some photos of the pipework on the twin system.

Originally I planned to fit both mufflers on the same side. Staggered, one under the other as this would have involved less pipe work.
Made up a jig and played around with it for a while, but decided in the end that I didn't like it as much as a muffler on each side.
Got Terry from Redline Exhausts to make it up.

Didn't  factor in how the lack of a swing arm on the left would look with the pipe work.  This still need some work, but overall I'm really happy with the result.   I originally thought I'd have to do something with the mapping emediatly after, but the bike pulls harder as it is.  I could probably get it to run even better with a bit of fiddling with the maping, but I'm not sure how I'll go about it yet.

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beetle
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PostSubject: Re: Grisso twin pipes   Fri Jul 28, 2017 2:34 am

This is proof of intelligent design. Good job. The secret is to slow down the exhaust gas speed. You idea to keep the pretzel is a solid one. I'm not surprised it works.



cheers
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sidrat
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PostSubject: Re: Grisso twin pipes   Fri Jul 28, 2017 4:11 am

Looks good too
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EricS
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PostSubject: Re: Grisso twin pipes   Fri Jul 28, 2017 4:23 am

Very nice work. When does production start?
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Pete Roper
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PostSubject: Re: Grisso twin pipes   Fri Jul 28, 2017 4:24 am

beetle wrote:
This is proof of intelligent design. Good job. The secret is to slow down the exhaust gas speed. You idea to keep the pretzel is a solid one. I'm not surprised it works.



cheers

I fully, (And mildly drunkenly!) endorse this assessment! Very Happy
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Steak
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PostSubject: Re: Grisso twin pipes   Fri Jul 28, 2017 3:39 pm

I applaud the effort and it looks nice, but a 2 into 2 would really make the effort worthwhile.

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2012 MOTO GUZZI GRiSO 1200SE

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GHTE
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PostSubject: Re: Grisso twin pipes   Fri Jul 28, 2017 6:43 pm

Hi Steak would you get sufficient back pressure with 2 into 2 system?
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Steak
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PostSubject: Re: Grisso twin pipes   Fri Jul 28, 2017 10:54 pm

Depends upon how you could pretzel, crossover meld, the midpipe I'd guess.

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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special
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Papa Lazarou
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PostSubject: Re: Grisso twin pipes   Fri Jul 28, 2017 11:30 pm

Pete Roper wrote:
beetle wrote:
This is proof of intelligent design. Good job. The secret is to slow down the exhaust gas speed. You idea to keep the pretzel is a solid one. I'm not surprised it works.



cheers

I fully, (And mildly drunkenly!) endorse this assessment! Very Happy

This exhaust does not even appear to be rollerised.

Praise indeed.

A lovely job, BTW.
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Carlotto
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PostSubject: Re: Grisso twin pipes   Sat Jul 29, 2017 1:27 am

Steak wrote:
I applaud the effort and it looks nice, but a 2 into 2 would really make the effort worthwhile.

Yeah,that would be nice, but I've already spent more than I originally planned.
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Ekimyrf
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PostSubject: Re: Grisso twin pipes   Wed Aug 23, 2017 12:40 am

Was this done by the guys at Edwardstown ?

Aha just re read your post I assumed correctly Redline I have friends who have had exhausts built by them excellent job.
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klaas123
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PostSubject: Re: Grisso twin pipes   Wed Aug 23, 2017 10:12 am

Very nice job indeed
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Carlotto
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PostSubject: Re: Grisso twin pipes   Thu Aug 24, 2017 5:43 am

Ekimyrf wrote:
Was this done by the guys at Edwardstown ?

Aha just re read your post I assumed correctly Redline I have friends who have had exhausts built by them excellent job.

Yeah, had the pipework done at Redline. As I mentioned earlier, I was not 100% happy with the left side and as Terry can get rather grumpy at times I took the bike down to an exhaust place just down the road from my place, AAA Exhausts.

Even though they don't usually do bikes and my job was small and pidly for them, they were fantastic, couldn't have asked for better.
In hindsight, should have gone to them in the first place.

First pic is, as the bike left Redline with the mid pipe hanging out in the breeze.
Next two are after a few hours at AAA Exhausts.

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Oz1200Guzzi
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PostSubject: Re: Grisso twin pipes   Thu Aug 24, 2017 4:46 pm

I can see the exhaust has moved forward some - nice! Is it now a boot burner when you put your foot down? I always had this problem on my Sport, exacerbated when I am wearing wet weather gear ( yeah the ones with the big melted hole in them on the left inside leg...).
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WCB
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PostSubject: Re: Grisso twin pipes   Tue Dec 19, 2017 6:04 am

I love the looks of it. Any chance you have a video/sound file so we can hear how it sounds?
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sidrat
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PostSubject: Re: Grisso twin pipes   Tue Dec 19, 2017 7:42 am

whats the view look like from behind?
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motor-timothy
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PostSubject: Re: Grisso twin pipes   Tue Dec 19, 2017 9:01 am

Awesome, love the symmetry! Would this be possible with the stock OEM pipes as well in theory? That would look spectacular I think albeit difficult/expensive to mirror the mounting.
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DangWangi
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PostSubject: Re: Grisso twin pipes   Fri Mar 09, 2018 11:39 am

Very nice work indeed! I support a video/audio recording whenever you get around to it! cheers
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