308GT4 YouTube Autobahn Runs ?

I think Somebody had said 165 (Hans?)... I'm sure conditions had to be right.

 

I did around 120-130 mph on the Autobahn but this already feels like it's taking off, front feels too light. So was not very eager to get it any faster

 

+1

I did (very short time) 140-145 mph / 230 Km/h , but the fear of lifting off paralyzed my foot on the accelerator. I think, there was not much more acceleration to expect.
165mph / 260 Km/h is IMO very optimistic.

 

My '81 GTSi felt "lite" in the front end at about 130-135mph.

Did not have the spare in it so that might have contributed.

 

Mark,
which front spoiler do you have? I did 160mph (speedometer reading) without anything,what would have concerned me. Maybe my deep front spoiler does anything and is not just a poser item?

Best Regards
Martin

 

Martin,

My 308 will not do 160mph falling off a cliff.

What you got in there?



Honestly, not sure but I think it is the North American spoiler as it is a NA car. I would actually have to look.

There is a pic of my car around here somewhere.

 

+1, my former 308 GTB felt light in the front end at 80 mph. After I installed a deep front spoiler, the issue went away and felt very planted.

 

I did an indicated 150mph, two up in my GT4, when I first got it about 30 years ago. It felt fine but a single lane seemed slightly narrow at that speed.

 

I don't think a GT4 can reach 150 mph of true speed, but even if it could do, it would be undriveable due to the lack of a front spoiler to reduce the front lift at high speed. Once aerodynamic was just an idea and on GT4 even worse. The deep front spoiler (on GTB and GTS) reduced a lot the lift on the front axle and gave also some more speed, as he lowered the front body. I remember a test that Quattoruote Magazine did in 1972, on an Alfa Romeo Montreal: without the front spoiler (they removed the one the Montreal had as factory standard) the car lost 4 km/h (2,5 mph) and the steer became very light at high speed. As the 308 was faster than the Montreal, the lack of a big front spoiler probably costed the car even more than on the Montreal.

ciao

 

In 1995 i run with my gt4 255 kmh(in taco) for few minuts, i think the true speed could be abouth 240 Kmh and sure there was no problem of driveability of the car at the speed

 

I did 240 km/h (arund 150 mph) on the Autobahn recently with my 308 QV ....deep front spoiler. The car felt very save no bad feeling that it would lift the front.

Joachim

 

Don't try to do it again...

ciao

N.B.
Maybe the driveability today is affected by old suspension joints, bushing and shock adsorbers: probably the car, when new, was much more firm at high speed.
I had two GTB turbo MY 1989: the one with less miles went straight at every speed or road conditions, but the one with much more miles didn't. They looked to be two different cars.

 

I supposedly had mine up around 130. Still felt well planted even with standard chin spoiler. I've always said that mine actually settles down and planted nicely at about 80+. Did an extended run (15-20 miles or so) north of 120 and the only thing I noticed was the oil temp started creeping up.

 

In 1982 or so on the Superslab in Wyoming...on a trip from the left coast to Chicago with my 75 GT4...I cranked it up to something over 150 indicated...(hit a dip in the road at speed, and with the stiff suspension the rear wheels left the ground momentarily, and then I slowed it down all the way)....

 

Just a note: I have a factory front spoiler for my '75 308GT4, currently sitting in my garage, off the car. I got tired of repairing it after after excursions on rural Nevada roads. There was the time I hit a herd of rabbits on US 50 in Eastern Nevada...

 

Next time, without your spoiler, you will hit a low flying eagle...

Seriously, I think a 40 years old car shouldn't go at top speed anymore: there are new cars for that.

ciao

 

Driving home from the "mother land" this summer, the Autobahn freed up some and the opportunity to stretch the legs on my GTB opened up. My GPS gave a speed reading of 260km/h, giving that the front became a little to light for comfort I had to lift off. The car runs with the small front spoiler, no question the NOS deep front spoiler I have in the garage will be put on the car as it gives the car a better look and stance. As the car still had a couple of thousands revs left before the limiter kicks in. Wind noise is not an concern as long as the windows are up...

 

It was built for it but I think the responsibility lies with the owner/driver and the condition of their car and the Germans seem to get that. I know that my tires are great for track performance but only rated to 165 and I don't know if I would want to test that. Though, if I had my suspension redone, all bushings redone and all in perfect condition and a road like the autobahn, I would go for it. 140 is like cruising speed on the unrestricted parts.

A couple years ago a FChat member was cool enough to take me out when I was there for a business trip in his then brand new F12. We hit 350kph / 217mph and it was so smooth and effortless. That road system is amazing!

 

Alberto,
I completely disagree. An old Ferrari offers a completely different driving experience at its top speed than any other modern car.
A raw, wild and ....somehow sexy experience.
I would almost say; Driving a modern car is like sex with rubbers

The one and only time the needle hit 300 kmh with me on the wheel was in an Audi RS6+
Scary but no way the same like 230 with the 308.

Even my '72 Alfa GTV has do to its 200 kmh from time to time. At least for an italian tune-up

Best Regards
Martin

 

Talking about aerodynamic effects;
Did anyone besides me, notice, that the tail of the 308 GTB/GTS gets twitchy above 125 mph with the headlights up?

The first time I experienced this, I thought there's something wrong with the rear suspension. Till I noticed, that it's only with the headlights up.

Best Regards
Martin

 

I've hit 125 easy in my Dino, felt solid to me?

 

Only did about 135-140 in my QV until I ran out of road. Plenty revs left and felt very planted to me.

On track of course...



PDG

 

For a 308gt4, the standard tyre rolling patch is 6.53 feet or 1.99 metres. Top gear ratio is 3.529, so here are revs and equivalent top gear speeds...

Kph 240 250 260 270
Mph 149 155 162 168
Revs 7092 7388 7683 7979

I have a rev limiter on my 308gt4 set at 7,700rpm. Last year, on a closed private road in good conditions, I hit the rev limiter in top gear on several runs, so approximately 260kph or 162mph. Yes, it felt a little light but felt good nonetheless. I was not looking at the speedo but a very quick glance showed it to be pointing at around about 4 o'clock or thereabouts. Quite exhilarating but after about 6 or 8 such runs, I was happy to call it a day and go and have coffee!
Cheers,
Grahame