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Say hello to Mefistofele......325hp and 178mph.....fastest Abarth in the world. - Page 2
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Thread: Say hello to Mefistofele......325hp and 178mph.....fastest Abarth in the world.

  1. #11
    Moderato map's Avatar
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    I imagine the tranny would be stronger, but I assumed it was to change the gear ratios. With stock gearing the car would be around 9,000 RPM at top speed? I wonder if 178 MPH was recorded on a dyno. These cars are scary enough approaching 100 MPH on the road. The guy that took it to 178 must have had nothing better to live for.

    There's no mention of which box was used but there's a lot of Alfa chat about the best gearing so I assume they have more choice. Custom gears are expensive; better to build one from available parts.

  2. #12
    Amministratore Fiat500USA's Avatar
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    The Assetto Corse cars use an extreme duty 6 speed transmission M32 gearbox.

    http://www.fiat500usa.com/2009/09/fi...r-6-speed.html
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    Curious about the comment about these cars being scary approaching 100 mph. Were you in a stock Abarth? Is the short wheelbase the issue? My Sport felt fine at 108 mph but, it is far from stock.
    Quote Originally Posted by map View Post
    I imagine the tranny would be stronger, but I assumed it was to change the gear ratios. With stock gearing the car would be around 9,000 RPM at top speed? I wonder if 178 MPH was recorded on a dyno. These cars are scary enough approaching 100 MPH on the road. The guy that took it to 178 must have had nothing better to live for.

    There's no mention of which box was used but there's a lot of Alfa chat about the best gearing so I assume they have more choice. Custom gears are expensive; better to build one from available parts.

  4. #14
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    I think it's a combo of short wheelbase, quick steering, highway grooving and light rear end, combined with a gust of side wind. It's easy to overcorrect at those speeds. I think the oversized wing and driving on a track might help but there's a lot of difference between 100 and 178 MPH.

    Or maybe it's just me. My former car felt more stable, but a slight nudge to the bumper (semi truck changing lanes) left me in a 360 degree spin, going backwards at 65 MPH, a few years ago. The bump to the rear bumper was light enough that it didn't even scratch the paint (about like closing the door) but left me a bit more sensitive to little stuff. At those speeds anything on the surface could be disasterous.

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    Here's an Abarth 595 doing 230 km/h (142 mph) when a minivan pulls out in front of him. Both my Sport and Abarth felt ok at 100+mph. The roads weren't crappy, though.

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    Amministratore Fiat500USA's Avatar
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    Quote Originally Posted by Fiat500USA View Post
    Here's an Abarth 595 doing 230 km/h (142 mph) when a minivan pulls out in front of him. Both my Sport and Abarth felt ok at 100+mph. The roads weren't crappy, though.


    Once I had to get hard on my brakes at high speed on a bumpy part of the Blue Ridge Highway and the rear started moving around a little more than I cared for. That didn't feel too good, especially looking over the cliff. I cooled it after that.
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    Good example. Watching the video, you can see it skipping side to side. Of course, that car is lighter than the US make... a bit over 830 lbs on the rear axle. I-5 isn't a bad highway but the trucks have worn some nice grooves which the factory Pirelli's love to climb. At those speeds little bumps can have you riding mostly on 2 wheels, at times.

    The driver in the video is a bit of an a-hat... as if the mini-van could even hear his horn.
    Last edited by map; 01-01-2022 at 08:18 PM.

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    Quote Originally Posted by Fiat500USA View Post
    Once I had to get hard on my brakes at high speed on a bumpy part of the Blue Ridge Highway and the rear started moving around a little more than I cared for. That didn't feel too good, especially looking over the cliff. I cooled it after that.
    Yes, I had the rear end want to step out on me on a bump in a sweeper once. It was in my first week of ownership. I've NEVER had the car over 90mph because of it, and usually drive it a lot closer to the speed limit.

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    Quote Originally Posted by samwichse View Post
    Yes, I had the rear end want to step out on me on a bump in a sweeper once. It was in my first week of ownership. I've NEVER had the car over 90mph because of it, and usually drive it a lot closer to the speed limit.
    I did similar on a freeway ramp. After new pavement was laid down, and the road was damp, the rear end suddenly slipped sideways at 35 MPH. With the overly quick steering, tiny corrections made it worse, headed towards "death" oscillation. After 3 small/quick corrections I froze my hands, applied partial throttle, and the car self-corrected.

    I learned on RWD carbureted cars and ancient habits are had to unlearn. I still occasionally catch myself, when the car is cold, double pumping the accelerator when pulling away from a stop.

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