what is the top speed of a 360 Modena?

I thought it was between 185 to 189 MPH, depending on which magazine you read, could my Speedo be off that much ?
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295km/h is about it, on a still day on level ground.

Like the photo.....but we can all jack the car up and spin the wheels...........lets see the view through the screen?

 

Interesting...

How fast would it go with no rolling or air friction?

Vincent.

 

here is the picture you ask for
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Hi James, not to draw you off topic but congratulations on your car winning SCC! A lot of us 350 guys are proud of your work

As far as your 360 goes....I have seen some other 360s do the same (bury the needle), and honestly I doubt it is possible for the car to be that inaccurate. I have heard most speedos range from 1% to 5%, but 15mph from 200mph is more than double that. I guess the only way to sure is stick a Garmin unit in there and do it again, or to be absolutely positive, do it with a radar gun.

Are those photos in your car from the G3k rally last year?

Cheers,
Richard

 

thanks , winning the USSC was great,

the pics on the 360 Modena was in NV when I ran in G3K.

 

A friend of mine, here in Germany, with a stock original European 360 Modena tracked his car on a closed race track.
Two different (police) radar systems were installed beside the track when he pushed & red-lighted the car.
Exactly, proofed and serious results:
318,5 km/h = 199,0625 mph!!!!

Thats it!

Wolfarossa
FORZA FERRARI

 

It is not strange that car speedos are about 8%-10% off. Guess it might be different at different speeds... ¿? Don't know about Ferraris, though.

Also bear in mind that any difference in rolling radius will affect speedo readings (i.e. aftermarket wheels/tires with)

 

Wolfgang, ist das auf der Opel Teststrecke?

BTW, we did 300 km/h during the PlayersRun with a 01 Euro. We had a GPS but I forgot to look at it . . .

 

Hi,
wow, I`m amazed you know the opel track?!?
Yes, its the opel-test-track! Done last year in spring.
Any news about the players run / europe? I remember you mentioned something about Munich this year???

Wolfarossa
FORZA FERRARI

 

Ok...got me

 

Yeah, 5-10% optimistic is common for speedos... the mfgers always make sure they measure fast (warranty shortener)... and then lower profile tires can easily speed it up another 5-10%. So 15% fast is easy to get to. And 15mph in 200mph is only half of that.

For an easy check... most highways have mile markers... compare your odometer vs. the mile markers... you should be about 0.2 miles off for each 3 miles you travel... but test that for several miles, because individual mile markers can be quite a bit off!!

 

"For an easy check... most highways have mile markers... compare your odometer vs. the mile markers... you should be about 0.2 miles off for each 3 miles you travel... but test that for several miles, because individual mile markers can be quite a bit off!!"

Often the odometer will be correct, but the speedometer will read high, so check both. GPS is the easiest way to check the speedo, but a stopwatch and the mile markers marks just fine too.

 

With no friction at all it could go a bazillion miles per hour.

 

Nope... even if you have plenty of HP to overcome all friction and air resistance, the rev limiter and gearing of your top gear will determine top speed. Remove the rev limiter, your top gear and the engineered top speed of your engine will determine top speed (above which the engine self-destructs and starts providing its own dramatic friction).

Unless, of course, you are referring to free-fall in a vaccuum.

 

>>>"How fast would it go with no rolling or air friction?">>>
With these factors gone... a bazillion miles per hour seems right to me.

 

Your speedometer is most certainly optimistic. I have a BMW and 911 that both have optimistic speedometers- I did read an article on the BMW I own (540) where the testers (Car and Driver or Road & Track, can't remember which) stated that the speedometer was reading higher than the actual speed, however the odometer in the car was accurate.

The trip computer on my BMW is supposidly linked to the odometer and calibrates it's average fuel consumption/speed/distance to empty etc. based on that. As a result, I can hold 90 mph per my speedometer, put the computer in "average speed" mode and hit reset while holding a steady 90. The "average speed" per the computer at constant 90 mph is I believe 85 or 86- at 85 that's a 5.9% error (86 its still a 4.7% error). Anyway, I hit 140 a few times in the car, and I'm honest so tell people we probably only hit only 132 or so

Sorry for the long response- In summary I think your speedometer is off, particularly as I have historically read articles stating that Ferrari speedometers are optimistic (granted these were older articles on 328's and such, but probably still holds). Obviously it's the case with many other cars as well, my BMW & 911 included.

 

Simple way to check your speedo... Take a GPS with you. We have seen 180 in our 550 but GPS said it 8mph optomistic.

 

About 10 -15 mph slower than a 550.

 

Fedral laws apparently allow speedo errors of up to 10% without the car being "defective" for lemon law purposes. I read in Road & Track that cars sold in the USA are generally at least 4% optimistic to prevent the manufacturers from facing liability claims from drivers cited for speeding, where the driver could claim that the speedo read under the actual speed. Which is why you can safely travel at 10MPH over the posted limits on highways without fear of become a tax donater to the local enforcement agencies.

 

My 360 reads approx +10% as shown against navman GPS unit, at an indicated 90mph it actually only doing 81mph. The strange thing is that it seems to read more accurately at higher speeds. Will try and get a picture soon to post. Its appalling that you spend all thius money on a top end car and a basic instrument cannot be more accurate. My Aprilia RSV-R bike is accurate to around 2%.

 

I believe it was car and driver that red-lined it at only 173 MPH. Sounds super low, but if its the redline, it can't really be argued.

 

It felt like there was more too before I dropped off.
Actually started outrunning my headlights LOL

 

so if it is 10% off, i was going about 180 then!

 

you musta been on that frictionless track that was mentioned previously

doody.