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Posted by: gfg3 Sep 16 2015, 01:38 PM

I just replaced an old Bursch exhaust system with a new Triad exhaust on my 1.8 L-jet with 2.0 stainless heat exchangers. System works/sounds fine, but idle increased up to about 1600 rpm after the install. No other mods. I can easily crank down the idle but could there be something else at play here? I haven't fiddled with timing, etc. yet.

Thanks.

Posted by: 7TPorsh Sep 16 2015, 02:13 PM

Your old Beersh's muffler may have been clogged up causing you to raise the idle?

Posted by: gfg3 Sep 16 2015, 02:23 PM

That's what I was thinking, but just wondering if there are other gremlins lurking about.

Posted by: Bruce Hinds Sep 16 2015, 03:36 PM

If the old muffler was that clogged up, i'll be you'll notice a big difference on the road . . .

Posted by: steuspeed Sep 16 2015, 03:38 PM

More free flow. I could believe that increased your idle. Just adjust it down.

Posted by: gfg3 Sep 16 2015, 03:46 PM

Done! That was easy.....

Posted by: ndfrigi Sep 16 2015, 04:15 PM

Can you shoot a video with the sound of the triad on your 1.8 engine? I've been wanting to order triad also for my 1.8 F.I. Thanks!

Posted by: screenguy914 Sep 16 2015, 04:21 PM

Must have been a baked potato in a pipe to affect idle that much. The most expensive exh system wouldn't have this affect at idle. Suggest checking the mech. advance mechanism in the distributor.

Sherwood

Posted by: boxsterfan Sep 16 2015, 09:19 PM

For anybody on the fence about getting a Triad....get a Triad!!!! I love the sound.

Posted by: gfg3 Sep 17 2015, 06:53 AM

Good point. I'll try to check advance today.

George

Posted by: gfg3 Sep 17 2015, 02:55 PM

I'll be happy to do that if I can get my phone to actually do videos. There have been several videos posted here with sound of the Triad. Not sure if any were on a 1.8 though. Doing a search on Triad should get you something for your listening pleasure....until I sort out my phone issues.

The Triad is definitely louder than my old Bursch....I mean we're talking two 2 1/2" pipes vs one 2" pipe....and a lot better flow. More to come.

George

Posted by: r_towle Sep 17 2015, 08:23 PM

I am going to suggest that you may have hit and knocked off a vacuum line, possibly one of the smaller ones for the DeCel valve or the distributor advance.

No real reason I to jump up that high.

Posted by: The Cabinetmaker Sep 18 2015, 05:49 AM

Why would a muffler sound different on a 2.0 or 1.8?