Realistic Top speed of a 914 Options

[Jason 914-6]

Hi might be a dumb question but how fast do you think a 914 with a six or four in could go I'm talking like land speed fast. (IMG:style_emoticons/default/evilgrin.gif)

Not a race car with spoilers/wings etc. but a narrow body low slung with tall gearing.
Any thoughts other than I'm (IMG:style_emoticons/default/screwy.gif)
But the Gt class here in Australia is a soft record ( 2lt class and 3lt) and well !!!!!!!!! (IMG:style_emoticons/default/drooley.gif)

[Andyrew]

All the simulations I have done with my current setup say I should be able to get close to 200mph at my high power setting and current gearing...

Will I ever do that? Not likely...

Most I've done is 150, and the rear end gets extremely light at that speed.

Serious aero would be required (Full undertray front to rear) if someone was serious about going big speeds (180+) in a 914.

[Calwaterbear]

All the simulations I have done with my current setup say I should be able to get close to 200mph at my high power setting and current gearing...

Will I ever do that? Not likely...

Most I've done is 150, and the rear end gets extremely light at that speed.

Serious aero would be required (Full undertray front to rear) if someone was serious about going big speeds (180+) in a 914.

What calculators are you using. I can tell you from our experience at Bonneville, using tire size, gearing and RPM to calculate top speed is a complete waste of time. The things that matter most are frontal area, CD of the car, weight. With those numbers you can calculate - or use on line calculators - wallace racing has all sorts of them, to calculate top speed.

Air resistance kills you at high speed. To double any given speed - you will need 8X the horespower, so once you get up 150-200, the wind resistance is absolutely gobbling up your horsepower. In that case, you probably don't have enough ponies to get to gear/rpm calculated speed, just not enough HP.

[Andyrew]

All the simulations I have done with my current setup say I should be able to get close to 200mph at my high power setting and current gearing...

Will I ever do that? Not likely...

Most I've done is 150, and the rear end gets extremely light at that speed.

Serious aero would be required (Full undertray front to rear) if someone was serious about going big speeds (180+) in a 914.

What calculators are you using. I can tell you from our experience at Bonneville, using tire size, gearing and RPM to calculate top speed is a complete waste of time. The things that matter most are frontal area, CD of the car, weight. With those numbers you can calculate - or use on line calculators - wallace racing has all sorts of them, to calculate top speed.

Air resistance kills you at high speed. To double any given speed - you will need 8X the horespower, so once you get up 150-200, the wind resistance is absolutely gobbling up your horsepower. In that case, you probably don't have enough ponies to get to gear/rpm calculated speed, just not enough HP.

Truthfully modern video games that take CD, weight, power, tire size, ect into calculation. Forza motorsports to be exact.

My gearing I believe is limited to 205 or better but after recreating my car with the exact speeds it actually does in testing puting in the appropriate gear ratios with the final drive adjusted for my larger tire diameter I seem to only get up to about 197ish when I give the car about 530hp (my estimated high power figure).