"Recommended Engine Red Line"

[digitalcraft]

Its funny people itching to accuse him of *something* but they're not quite sure yet what that something is, but they're sure its there!

[ruim20]

An air-cooled flat six I believe.

Ah right, the infamous Corvair. Thanks.

[cmcpokey]

Ah right, the infamous Corvair. Thanks.

here's a shot i took of a beautifully restored one i saw a few months ago.

[Fleet 500]

here's a shot i took of a beautifully restored one i saw a few months ago.

The one in the magazine had the 180- turbo engine, with 1- 1 bbl.

I remember you could order one with 4- 1 bbls! (Four 1 barrels.) I wonder how hard an engine wtih 4 carbs would be to adjust.

[Fleet 500]

The list is great and threads like this are brilinat imho.
So often many don't know figures for old cars.
YES, the risk is getting another FLeet v. World "debate" ... but that can be monitored. Let's not lose the info because of the bias

Thanks Matra.

Yes, information such as posted above on classic cars should be encouraged because many people are interested in those cars and because any additional information is always good.

[Fleet 500]

Also, what engine is this - 1965 Chevrolet Corvair---- 164 turbo------ 180@4000---- 4000 - ?

A turbo with a redline at 4000, turbo diesel?

TIA!

That is a typo!

It should be 5800 as the redline.

[Fleet 500]

So I should trust Motor Trend to say which rpm a safe red line for my engine?
And how did it get these figures?

To answer your first question... no. Those redlines are numbers to be considered, but not set in stone.

I reread a few road tests and it looks like the figures are from Motor Trend, not from the manufacturer. Because there is a box which has "specifications from the manufacturer" and the redline is not in that box but in another area.

Anyway, here are two quotes I found from the text of road tests:
(1964 Pontiac GTO)
"We used 5500 rpm as our redline, since the engine flattened out considerably at 5800."

(1962 421 Pontiac)
"The factory recommends a maximum of 5500 rpm with the standard dual valve springs" [M/T listed 6000 rpm as recommended maximum and their speed in gears was done shifting at 5600 rpm]

[henk4]

our 1967 Fiat 850 Coupe was redlined at 6500, maximum power came in at 6250, I have seen the rev counter at 6700 in top gear...

[cmcpokey]

so what's that, about 24 mph there?

[fisetdavid26]

so what's that, about 24 mph there?

24 mph... downhill perhaps.

I'm disappointed, none of those rev... OVER 9,000

[cmcpokey]

... OVER 9,000

keep your game out of this.

[fisetdavid26]

keep your game out of this.

I used to be a human, an individual. Now I'm barely a 4chan muppet.

Seriously now, I've always wondered why people rev above the indicated redline on the tachometer, perhaps I'm too much of a pussy. I mean, unless they fine tuned and tested the car themselves and they know what redline is safe... why?

And then there's the complete opposite of myself:

[ame="http://www.youtube.com/watch?v=0_CmhEL49mY"]YouTube - Integra Type R 11,000rpm[/ame]

[f6fhellcat13]

For Mr. Fiz;
1964 Honda S500 - 531cc - 44hp @ 8000rpm - redline: 9500 rpm.

[johnnynumfiv]

The one in the magazine had the 180- turbo engine, with 1- 1 bbl.

I remember you could order one with 4- 1 bbls! (Four 1 barrels.) I wonder how hard an engine wtih 4 carbs would be to adjust.

Not hard when you know what you are doing.

[ruim20]

here's a shot i took of a beautifully restored one i saw a few months ago.

That really is beautifully restored, amazing work.

Notice the belt that goes from horizontal rotation (cooling fan) to vertical rotation, pretty interesting.