Can anyone furnish the performance specs for the 1075 308 GT/4? I'm looking for top speed, 0 to 60, 0 to 100, and 1/4 mile time. Cornering "Gs" if possible. THANKS!!!! Bob Z.
US or euro spec? Mine is a 1974 Euro. Actual top speed is limited by rpm in 5th gear (and the size of the driver's brain- or lack thereof). This is 265 kph indicated (165 mph), which according to the GPS is about 240 kph actual (150 mph). Done this a number of times, so it's not academical. Never measured 0 to 60 times. Around 7 seconds? The other ones? No clue. Basically, the Euro Gt4 is about on par with a BMW 330i in acceleration and top speed, and -MUCH more important - beats it hands down in cornering speeds. Still need to calibrate my fluffy dice though, so can't give you a G-number Image Unavailable, Please Login
F=mA, Mass of fuzzy dice...6 grams Acceleration?, From the look on your face FUN ! F=? Last time I checked one needs 2 variables defined to solve for the third... nice shot and those bumpers, very pretty.
Alright Hans!! Great picture. I'm a huge fan of fuzzy dice. Here's mine. At 38,000ft. They can pull +3 -1.5 G's before they flatten out. Image Unavailable, Please Login
Road & Track, Sept 1974 (tested in Europe): 0-60, 6.4 seconds. 0-100, 16.5 seconds. Quarter mile, 14.6 seconds at 91.5 mph. Road & Track, Sept 1975 (USA version): 0-60, 8.0 seconds. 0-100, 22.1 seconds. Quarter mile, 16.1 seconds at 85.5 mph. Car & Driver, June 1975: 0-60, 7.0 seconds. 0-100, 20.0 seconds. Quarter mile, 15.4 seconds at 90.6 mph. Road Test Magazine, March 1976: 0-60, 7.7 seconds. 0-100, NA. Quarter mile, 15.76 seconds at 90.09 mph. Motor Magazine (UK), 1975: 0-60, 6.4 seconds. 0-100, 16.7 seconds. Quarter mile, 14.7 seconds at 94 mph. Cornering: 0.798G, per R&T.
Just bear in mind that these numbers were performed on new cars at the time with 70s era tires under the car. These numbers should improve slightly, especially the skidpad, with modern tires. There also seems to be a wide variance with all the tests performed by the different magazines which to me says that the figures are commensurate with how far they were willing to have these motors, and how well they handled these hard to shift cars for those uninitiated with Ferraris.
Last year I did a verifiable 1/4 mile in 15.27s @ 91mph at the Brighton Speed Trials http://www.brightonandhovemotorclub.co.uk/files/st2009results.pdf Not bad for a standard 30 year old model with 82k miles on it.
There are many reasons why magazine tests vary so much. For instance, until some point in the 1970s (I can't recall off hand, but I could look it up) Road and Track did ALL road testing with two people in the car UNLESS there was only one seat. This explains why lightweight low displacement sports cars often had an extra second or two on acceleration times. When it came to exotic cars, American mags often had to test privately owned cars. Consequently if you actually read the articles, you'll often notice clutch slip and questions regarding proper tuning of the carbs/timing are not uncommon. Indeed, I'd guess it wasn't until the late 70s before an American mag tested a Ferrari and didn't note excessive clutch slip. Other issues also contribute to varying results: test methods (most importantly -- how to launch the cars in acceleration and utilizing tire pressures other than those listed in the manuals) and the order of the testing (and the affect on tire wear and brake fade.)
Hans, those dice look to be leaning at close to 45 degrees.....so, you're probably not too far off 1.0g....maybe .9g or so.... Your car corners nice and flat, so, I'm guessing you've upgraded the suspension a bit...or a lot!
Yup, that was also my take on it. And this was NOT at the very limits of the car's capabilities.... Suspension with QA-1's and 300/300 springs front and rear. Later I've added a thicker anti-roll bar at the rear and poly bushes, but this pic pre-dates those changes... The QA-1's are THE best upgrade I've done to the car, followed by the X-OST muffler (aka flame thrower)
+1 I read recently in one of my road test annuals that The testing equipment would add another 250 lbs along with another passenger. They didn't speed shift nor sidestep the clutch and ran with a full tank. Todays tests are usually not at a track any more and all times are adjusted for altitude, which can really skew what real world times would be. For example this week at my atlanta track, normal elevation 1510 ft, density altitude was over 3200 ft. a real world 12 second et would be corrected in a magazine to 11.6 at sea level.
