PROJECT FIAT 124, Testing, Measurements, Dyno, etc

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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Post by Brian »

Sound Clip of Complete System with no resonator.

2.25 Crosspipe (Automatic Version)
2.5 inch Midpipe
Quad Outlet Exhaust




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jpwfz6
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Post by jpwfz6 »

Those sound great Brian!
Just to confirm, both those setups are no resonator in the midpipe, and no baffles?
And if you wanted to quiet it down a bit you could add up to 4 baffles (extra cost) ?

thanks,
Jason Wood
Jason
Victoria, BC Canada
:( Sold: 2006 Winning Blue, 2.5L, Progress springs, KYB shocks, Michelin PSS, Full GWR street exhaust.
:D Current: 2017 Fiat 124 Abarth, Rosso red, M/T, Progress springs, Wilwood BBK, Full GWR exhaust
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Post by Brian »

jpwfz6 wrote:Those sound great Brian!
Just to confirm, both those setups are no resonator in the midpipe, and no baffles?
And if you wanted to quiet it down a bit you could add up to 4 baffles (extra cost) ?

thanks,
Jason Wood
No resonators and no baffles. Now that I have driven the setup again with no baffles and no resonator was thinking of not drilling the tips for the baffles...for two reasons. First reason is that when just cruising the system is still rather mild from the cabin as you can hear in video. Second reason is visual, with four tips it's a lot of holes that you can see when there are four tips and it takes away from the final appearance. The tips are still the shape that could take our baffles and the holes could be drilled later by customers.

Note we still offer version with resonator in the midpipe for those worried on the sound level...and we still offer single tip per side muffler delete that is drilled for resonator baffles.
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Post by Brian »

Fiat 124....now on OHLINS Coilovers!

Ready for Autocross Fun this Weekend!
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Post by Brian »

Same pic, lower def for linking
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Post by Brian »

What's in the stock muffler?

Here you go. Not clean for flow, designed for cheap sound suppression and low weight.

Notice two resonators included on the exit pipes. Flow is dumped from midpipe into center section and bounces around the pipes and through perforated dividers and various passages through the dividers to the far ends of the muffler where it then enters exit pipes, passes through resonators, and then out the exhaust tips. The comparatively narrow neck and the jumbled flow path is why I do not see much point in using stock muffler on the end of highflow parts upstream.
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Post by Brian »

Our Fiat in fast company at First BMW Club Autocross of the season!
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Post by Brian »

ROLL Protection Installation Started!

First, removing the factory hoops. Under the factory thick plastic the stock bar is very thin, about an inch.
Fiat-RollBar3.jpg
Fiat-RollBar1.jpg
Head Mechanic Rocky removing stock roll protection which, fortunately, is bolt-in item. Stock bar is made to help you live through a low speed event. What does that mean? It means you get hit in an intersection and flip when the SUV pushes you into the curb and your Fiat flops over and traps you under. Do NOT depend on stock protection for track days, most smart track day groups will NOT allow the weak stock hoops on track and nobody should be dumb enough to depend on them for protection at track speeds.
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Post by Brian »

If not for the roll protection there would be room for back seat...like my 78 Fiat 124 spider had!
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Post by Brian »

ROLL BAR IN....Track Ready!
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