Exhaust cut-off valve installed.. fun!

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architect
Posts: 321
Joined: Thu Jul 21, 2016 9:48 am
Your car is a: 1978 Fiat Spider
Location: Austin, Texas

Exhaust cut-off valve installed.. fun!

Post by architect »

Sometimes it’s fun to be loud! :twisted:

If anyone is interested, I ordered the 2.25” kit from Summit Racing. Only draw back - doesn’t come in stainless at this odd size.

https://www.summitracing.com/parts/GRN-303522

It was pretty easy to install on my Vick Auto exhaust.

- buy a sharp 18 tooth sawsaall blade
- find 8.5” of straight pipe to cut and replace with kit
- clamp (use putty) or weld together
- route cable to your choice
- wake up the neighbors!

I’ll post a video soon! It might not be for all, but man it’s sure fun to flip that switch!

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78 Fiat 124
burgandy81
Posts: 371
Joined: Fri Feb 22, 2008 5:38 pm
Your car is a: 1981 FIAT Spider 2000
Location: Victoria, BC

Re: Exhaust cut-off valve installed.. fun!

Post by burgandy81 »

That's fun!!

I have some of those parts in a drawer. In my case, I want to have a cut out immediately after the turbo downpipe to increase spool time and flow.

How is the sound (edited) when it is closed? Do you hear anything?
Last edited by burgandy81 on Mon Apr 08, 2019 11:26 am, edited 1 time in total.
DieselSpider
Posts: 2130
Joined: Wed Dec 24, 2014 10:21 pm
Your car is a: 1978 124 Spider with Isuzu Turbo Diesel

Re: Exhaust cut-off valve installed.. fun!

Post by DieselSpider »

I just use a standard pneumatic muffler cut off tool or a cut off wheel in an angle grinder. Once you've got one and learn how to use them you won't go back to using a sawzall as a substitute for cutting metal. What you save on sawzall blades and time will make it well worth the investment.
architect
Posts: 321
Joined: Thu Jul 21, 2016 9:48 am
Your car is a: 1978 Fiat Spider
Location: Austin, Texas

Re: Exhaust cut-off valve installed.. fun!

Post by architect »

Added a nuclear reactor type switch just for kicks any giggles.

After I get my carb situation figured out..
I’ll post a video. It sounds really great opened up!! Yeaaaahhh!

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78 Fiat 124
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joelittel
Patron 2018
Patron 2018
Posts: 1013
Joined: Tue Mar 08, 2011 6:53 pm
Your car is a: 1980 Spider 2000 FI
Location: Evanston, IL

Re: Exhaust cut-off valve installed.. fun!

Post by joelittel »

I love it, especially the switch.

I also like the cover you put on your ashtray. I’ll be adding that mod to my list of projects.
Felizardo
Posts: 2
Joined: Wed Jan 12, 2011 6:43 pm
Your car is a: 124 Spider CS0 1981
Location: Portugal

Re: Exhaust cut-off valve installed.. fun!

Post by Felizardo »

And the sound? I want to listen!!
:twisted: :twisted: :twisted:
Fiat Spider 2000FI '81 --- Mercedes SL350 '72 --- Renault 4CV '55 --- BMW Z3 Roadster '00 --- Vespa 150 VL3T '56 --- Vespa 150 Sprint V. '77
MykeNytemare
Posts: 43
Joined: Wed Jan 30, 2019 3:38 pm
Your car is a: 1977 Spider

Re: Exhaust cut-off valve installed.. fun!

Post by MykeNytemare »

Im still waiting as well for the sound clip or youtube link!!!!
architect
Posts: 321
Joined: Thu Jul 21, 2016 9:48 am
Your car is a: 1978 Fiat Spider
Location: Austin, Texas

Re: Exhaust cut-off valve installed.. fun!

Post by architect »

Here's a quick video from my tune last night.. the car is dirty, but you get it! The sound is actually pretty amazing. Ill get a better video posted soon, waiting on new jets for my carb. :evil:

https://www.dropbox.com/s/ds3r4zj1ie4yy ... M.MOV?dl=0
https://www.dropbox.com/s/o9x7z0h32g14l ... M.MOV?dl=0
78 Fiat 124
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