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138 Exhaust system...

Posted: Mon Aug 02, 2010 8:18 pm
by sponge_designs
Evening all,

I thought what better way to hit the nail on the head first go, then ask what style of exhaust system everyone is running on there 138?

I will be running twin Strombergs and extractors that collect into a 2" pipe, from there I am open to opinions. I love the look of twin exhausts but I'm thinking it will be to much exhaust and not enough back pressure.

So what's everyone running?

Cheers,
Matt

Re: 138 Exhaust system...

Posted: Mon Aug 02, 2010 9:11 pm
by Trev
Hi Matt, I liked the idea of the twin so I ran a single 2 1/4" to just over the rear axle then split it in two 2" to get the look.
I too am running twin carbs and extractors, works well :D .
Image

Re: 138 Exhaust system...

Posted: Tue Aug 03, 2010 1:05 pm
by Devilrod
You forgot to mention it sounds good too Trev.

Re: 138 Exhaust system...

Posted: Tue Aug 03, 2010 2:21 pm
by Trev
Thats because of the lack of muflerization :D .

Re: 138 Exhaust system...

Posted: Tue Aug 03, 2010 11:10 pm
by sponge_designs
You just answered my question! I was going to ask what muffler set up you were running!

I am considering splitting the system at the extractors and running twin pipes the full length.

On the other hand a nice stainless exhaust will finish off the underside but cost would rule out the above set up!

Re: 138 Exhaust system...

Posted: Wed Aug 04, 2010 3:57 am
by Trev
I do have a muffler but it's a straight through design, it sounds good but gets a drone at certain speeds around 60 to 70 kph, which doesn't bother me.
My set up cost $400, that included welding on flange plates to the extractor join and the split into 2 section as-well, so it would be easy to remove if I wanted to, Trev 8) .