I'm doing a show sign for my car and find diffrent top speeds listed for a 308 qv, I have seen, 150, 155, and 160, which one is correct/most widely excepted ? Thanks !
funny you should mention that I got with a state trooper yesterday and had him clock me, I indicated 60 mph his radar said 52 mph
Hey... its a 308. It aint about speed. You just look good! I think they are like an older Lotus.... the speedo is very generous!
I heard from this guy that knew this dude that dated this one guy that once lived next door to this girl who's dad said it was about 140 actual MPH.
I'm looking at page 19 of the 1983 QV owners manual that shows a speed of 132.5 mph at 6800 rpm (peak power). Now, the engine will rev to 7700 rpm, but I've not tested the pulling power in fifth gear to see what the max is. I'd imagine that you'd be hard pressed to get much faster than 135 in fifth... Mondial 8 owners, rejoice. The car is supposed to do 139 at 6600 rpm (max power) per page 17 of the 1981/1982 US spec owner's manual. It might take a little longer to get there, but it should be faster. But there is no substitute for a V12, the 365 owners manual claims 152 mph in 5th.
i was gonna say 140 yeah, 140 comes to mind might be scary at 140 to be quite honest probably best to keep it around 130 150 ? you gotta be kiddin' me maybe downhill with a tail wind helpin out don't forget ferrari's good ol' speedo error of about 10% usually Mondial 8 @ 139? no way maybe for that split second when the engine blows up and thrusts the car forward
With Ferrari, the speedo's are a approx and not actual. If it was an indicated 150 then he was doing 130.
Depends... US models tested a top speed of 139 mph while European tested top speed at 154 mph Gearing also factors into top speed. "I've seen 150 in my car more than twice. So I would venture to say 155-160 tops" I have tested the speedos in the Daytona, Boxer, and 308 with a GPS unit and I can tell you that when the speedo was showing 150, you were not going 150. They are way off!
I've tested the speedo in the 365 with GPS, it is within 1 mph at 70. I was amazed how accurate it was. Maybe Luigi was drunk when he assembled that one.
If the post below is correct and an idicated 60 is an actual 52, then 150 on the speedo is really 130, and that sounds right. Now, if you had a supercharger on that QV and could get to redline in 5th gear, 7700 will give you a true 150 mph with an idicated speed of about 173.
car and driver had tested the car in 83 and it was tested in a two way run..up the road and then down the road...the average was taken. it was faster than the 928 p-car and averaged 148 mph. seemed fair to me i have the article to support the speeds. they also mentioned that that speed made it the fastest production car in the usa...mentioned also was the boxer, ct, and 930 were not currently legal in the u.s.
I can testify that the speedos in 5 of the 6 Fcars I have owned read too high, sometimes by large amounts. If you have US model QV, you can figure about 20 MPH for every 1K RPM in 5th. You can find the precise numbers in your owners manual. In anyevent, you will need miles of open road to reach a true 140 in a QV. Dave
Interesting. Didn't I read somewhere that the 328 was somewhat unique in being able to see redline in top (5th) gear? I figured that might also be the case for 308 QVs?
Mine will and has redlined in fifth gear. They run alot of gear which makes it easy for them to push through the air. Higher ratios would make this impossible with the relative little amount of H.P. these cars have. They are stable at speed with the euro front air dam. Radar or GPS is the only true number worth bragging about. Indicated is off for sure. John
I got nailed at 159kph, and my speedo was showing something between 160 and 170. 1989 328 GTS. Lawrence.
I compared the speed to my GPS and to a radar unit and the speedo is surprisingly accurate. Kinda hard to tell for sure with that needle, but within a few mph at the most. At least at speeds around 70 mph. Doing 130 mph or even more is hard for me to imagine in this car. Maybe on the flats at Bonneville and after having done half a bottle of Vodka.
I had mine at 120 many, many years ago...well I thought it was 120. Not too long ago I passed one of those Speed Limit detectors that flash how fast you are going. It read 46, but I thought I was at 50...so not too bad. So maybe I was doing 110? My 308 was steady as can be.
The earlier (carb) 308 redlined at 156.7 mph with their 3.708 final drive ratio. This was achieved in at least one European magazine test. My desmogged USA 77 with the optional Euro deep front spoiler would readily exceed redline in 5th on a cool day (given a 3.5 mile stretch of road). And its speedometer was accurate within mile marker timing measurement capability at 120 (but that does vary from car to car, as we know.) Using the 4V's final drive ratio of 3.823 gives a speed at redline of 152. "Motor" magazine got 155 in an 84 Euro 4V (and 157.4 on a banked circuit). I have seen 158 quoted in another Euro test, but can't put my hands on the mag at the moment. "Motor" quoted the Euro car as having 240 HP; the USA car quoted at 230 / 235 HP, depending on the year. Not much difference there; the main difference between US and Euro 4V's is weight, but that is not important for top speed.
Avatar shows a photo of real-life 160 (well, maybe 159 or so), but based on what everyone is saying about inaccurate speedos, who knows how fast we were going (83 GTS - top off)
