PROJECT FIAT 124, Testing, Measurements, Dyno, etc

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PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Postby Brian » Sat Jul 09, 2016 9:08 am

It begins!

My wife has nicknamed this one 'Sophia', it is her new daily driver. Goals similar to our old 2012 PRHT which was also her daily driver. In other words, add FUN at every level we can without pissing off the wife! That will likely mean moderate suspension mods, wheels and tires, perhaps our lightest brake rotors and calipers, and so much more. Excited to get it on the scales and get accurate weight, and then perhaps see how much weight we can get out of it (we got the parts to take over 50 lbs out easily).
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Fiat124.jpg
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Postby morrisg » Sat Jul 09, 2016 12:40 pm

Can you give us an estimated size of the front mount intercooler? Just curious as I know you will log the OBDII IAT (Intake Air Temp) when you do your dyno runs, so would be nice to see if there is any tendency to heat soak. Thanks for starting this thread, I'll be watching it closely to see if the 124 can be taken into "mini-Corvette" performance territory! (While keeping the car wife friendly, of course!)
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Postby Brian » Sun Jul 10, 2016 1:56 pm

Picked up new project Fiat 124 today, ostensibly wife's new daily driver, already nicknamed: 'Sophia'. Welcome Sophia, fun begins today with spring swap, wheels and tires, etc.

It has only been almost THREE DECADES since my last Fiat 124!
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tmp_20233-20160710_125411235274946.jpg
tmp_20233-Fiat-124-1760831612.jpg
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Postby Brian » Sun Jul 10, 2016 2:55 pm

I did some freeway time with top up...and for anybody wanting the most quiet version of the ND/124 chassis....they want the Fiat. Particularly with the narrower 16 inch wheel/tires the ride is noticeably more quiet and smooth compared to ND, despite fact Fiat spring rates and sway bar rates are HIGHER (already pulled and measured a lot). Body lean is less than ND in stock form, though still rolls quite a bit, just not near as much as stock ND (rear sways on ND 11mm, on Fiat 14mm).
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Postby Brian » Sun Jul 10, 2016 4:50 pm

Fiat springs vs ND springs. Length is the same, same coil count, but you know the Fiat springs are higher rate because they are heavier. These are rears.
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SpringsRear-Fiat.jpg
SPrings-NDrear.jpg
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Postby Brian » Sun Jul 10, 2016 4:57 pm

Noticed the Fiat battery is not the same as ND.

In fact, the Fiat battery is HUGE.

We may need to adjust our ND light battery kit to work here, but the payoff may be even bigger.
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Fiat-Battery.jpg
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Postby morrisg » Sun Jul 10, 2016 8:42 pm

Did you get an overall weight before taking off things? Interested in the corner weights, too.

Looks like a FUN project! Thanks for all the new info!
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Postby Brian » Sun Jul 10, 2016 8:56 pm

Boom...Baby Got Back.

This is FULL TANK of gas, no people in the car.
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Postby Brian » Mon Jul 11, 2016 4:25 am

This is interesting, soft rubber noise absorbing cushion our ND GT did not have, but Fiat does.
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FiatSpringNoise.jpg
FiatSpringNoise.jpg (73.33 KiB)
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Postby Brian » Mon Jul 11, 2016 5:33 am

Yep, fixing the ugly stock exhaust is on the list.
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Postby Chuck H » Mon Jul 11, 2016 9:19 am

I really like the 124 in person. It has all of the good points of the ND design, with just enough classic Fiat design cues to make it unique. Really like the wheels, too. But you're right about the exhaust -- that tailpipe has to go! I'd love to see a black muffler under there with small diameter twin polished tips, for an old-school Monza exhaust look. Something like your ND SuperStreet twin tip with the can painted flat black :)
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Progress springs and sways
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Postby Brian » Mon Jul 11, 2016 3:10 pm

WOW, found some of the extra weight!

The Fiat Battery is looks like a BEAST....because it is! Once all the brackets are added (not shown here), the weight is over 39 pounds! Stock ND battery with the brackets is only 26 pounds.....13 pounds less! Once we get our Light Battery Kit modified to work in the Fiat we will be saving about 36 pounds on just the battery. Given that is all weight high in the nose of the car it will make a nice difference.
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FiatBattery.jpg
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Postby Brian » Mon Jul 11, 2016 5:51 pm

Fiat 124 with our Progress Springs and 17x8 tungsten wheels with 235/40/17 Toyo R1R Tires.

Fits perfect, looks awesome!
Attachments
Fiat124Tungstens.jpg
Fiat124Tungsten2.jpg
Fiat124Tungsten.jpg
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Postby Brian » Wed Jul 13, 2016 5:35 pm

Dropped over 52 pounds of weight today from our Fiat 124!

Seriously, that is HALF the amount the Fiat is heavier than the ND Miata...gone in ONE DAY.

Did it with just our front two-piece brake rotors, caliper conversion, and light weight battery kit.

Car now rides BETTER than stock thanks to big cut in unpsrung weight, and stops better thanks to four piston calipers, and handles better (front end response to all inputs and road imperfections is better).
Attachments
FiatWeightLoss.jpg
FiatWeightLossStork.jpg
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Re: PROJECT FIAT 124, Testing, Measurements, Dyno, etc

Postby Brian » Wed Jul 13, 2016 5:56 pm

Light Battery Installed in our Fiat~!

FULL SPECS on the battery:


PN: BTL35A480C

Deltran Battery Tender's® line of Lithium Iron Phosphate (LiFePO4)
engine start batteries are designed to replace Flooded, AGM, and Gel
cell lead acid batteries in Power Sport applications such as
Motorcycles, ATVs, Personal Water Craft, Lawn Mowers, Utility Vehicles,
and Dirt Bikes.

Features:

Voltage: 12V
Lithium Cranking Amps: 480
Case Dimensions: 6.49” (165mm) length x 3.38” (86mm) width x 5.11” (130mm) height
Operating Temp: 40 - 140°(F)
Weight: 3.75 lbs
Max Charge Rate: 10A
Agency Approvals: CE, UN 38.3

• 18 month Shelf Life
• Up to 80% lighter than Lead Acid Equivalent
• 5X the Life of a Lead Acid Battery
• Quad Terminal Configuration for ease of installation
• Can be mounted in any direction
• Lithium Batteries do not sulphate
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FiatLightBattery.jpg
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