## how much turbo pressure does today's f1 engines have?

All that has to do with the power train, gearbox, clutch, fuels and lubricants, etc. Generally the mechanical side of Formula One.
lawnmower
-1
Joined: Fri Jun 23, 2017 5:50 pm

### how much turbo pressure does today's f1 engines have?

does anyone knows?

trinidefender
314
Joined: Fri Apr 19, 2013 7:37 pm

### Re: how much turbo pressure does today's f1 engines have?

Somewhere between 2.5 to 4.0 bar gauge pressure is what I seem to recall most calculations coming out at.

lawnmower
-1
Joined: Fri Jun 23, 2017 5:50 pm

### Re: how much turbo pressure does today's f1 engines have?

trinidefender wrote:
Thu Apr 05, 2018 8:32 pm
Somewhere between 2.5 to 4.0 bar gauge pressure is what I seem to recall most calculations coming out at.
thanks, i think they have high compression ratio and low turbo pressure

trinidefender
314
Joined: Fri Apr 19, 2013 7:37 pm

### Re: how much turbo pressure does today's f1 engines have?

That was bar (atmospheres) not psi, that's between 36 and 58 psi so in other words high turbocharger pressures as well

J.A.W.
83
Joined: Mon Sep 01, 2014 4:10 am
Location: Altair IV.

### Re: how much turbo pressure does today's f1 engines have?

ATA is AFAIR, the correct metric, rather than bar - for forced induction pressure - values..
Dr Zachary Smith sez..
"Yes.. spare us your ridiculous remarks, you insensitive idiot!"

Tommy Cookers
512
Joined: Fri Feb 17, 2012 3:55 pm

### Re: how much turbo pressure does today's f1 engines have?

most people talk of boost but mean absolute pressure
eg the 1988 F1 turbocharged engines were limited to 2.5 bar absolute not 2.5 bar boost

early in the current F1 Renault publicity material gave 3.5 bar (and we try to remember whether 3.5 bar abs or not)

261
Joined: Sat Jan 02, 2010 12:57 am

### Re: how much turbo pressure does today's f1 engines have?

This part has always confused me:
The bar is a metric unit of pressure, but is not approved as part of the International System of Units (SI). It is defined as exactly equal to 100,000 Pa, which is slightly less than the current average atmospheric pressure on Earth at sea level.
I always thought it was one atmosphere. 14.7?
Motorsport without danger is like cooking without salt
Sir Stirling Moss

trinidefender
314
Joined: Fri Apr 19, 2013 7:37 pm

### Re: how much turbo pressure does today's f1 engines have?

Tommy Cookers wrote:
Thu Jun 07, 2018 10:05 am
most people talk of boost but mean absolute pressure
eg the 1988 F1 turbocharged engines were limited to 2.5 bar absolute not 2.5 bar boost

early in the current F1 Renault publicity material gave 3.5 bar (and we try to remember whether 3.5 bar abs or not)
Renault didn't specify which they were referring to did they?

Maritimer
16
Joined: Wed Sep 06, 2017 8:45 pm

### Re: how much turbo pressure does today's f1 engines have?

Thu Jun 07, 2018 8:55 pm
This part has always confused me:
The bar is a metric unit of pressure, but is not approved as part of the International System of Units (SI). It is defined as exactly equal to 100,000 Pa, which is slightly less than the current average atmospheric pressure on Earth at sea level.
I always thought it was one atmosphere. 14.7?
The Bar is 14.5 psi, close to atmospheric average but not the same

261
Joined: Sat Jan 02, 2010 12:57 am

### Re: how much turbo pressure does today's f1 engines have?

Thanks but I know that now. It's just that for most of my life I thought 1 BAR was 1 atmospheric pressure. wasn't till a few years ago that my mis-conception was pointed out to me.
Came up when I was talking with someone about how my supercharged cars pounds of boost compared with other machines that measure the boost in BARs.
Motorsport without danger is like cooking without salt
Sir Stirling Moss

gruntguru
431
Joined: Sat Feb 21, 2009 6:43 am

### Re: how much turbo pressure does today's f1 engines have?

lawnmower wrote:
Thu Apr 05, 2018 8:19 pm
does anyone knows?
A bit less than this Cummins.

See dyno runs at 3:00.
je suis charlie

lawnmower
-1
Joined: Fri Jun 23, 2017 5:50 pm

### Re: how much turbo pressure does today's f1 engines have?

Why did not turbocharged + supercharged this way in 1980's turbo cars? Crankshaft could get power from exhaust gas

J.A.W.
83
Joined: Mon Sep 01, 2014 4:10 am
Location: Altair IV.

### Re: how much turbo pressure does today's f1 engines have?

Likely due to free-wheeling F1 turbo-tech ~30 years back.. being far more simplistic/basic..

& those Napier high-efficiency* turbo-compound set-ups - were predicated on continuous/steady-state running..
with the excess jet-thrust generated** - also being useful for propulsion..

*& they were 'multi-fuel' engines.. capable of running on (low-test) gasoline/avtur/diesel - as required.

**Also able to employ reheat/after-burner mode - for extra take-off power.
Dr Zachary Smith sez..
"Yes.. spare us your ridiculous remarks, you insensitive idiot!"

wuzak
354
Joined: Tue Aug 30, 2011 2:26 am

### Re: how much turbo pressure does today's f1 engines have?

lawnmower wrote:
Fri Jun 08, 2018 3:00 am
Why did not turbocharged + supercharged this way in 1980's turbo cars? Crankshaft could get power from exhaust gas
Keithe Duckworth did propose a turbo-compound engine, but it didn't proceed as the FIA said it would be banned after it won its first race.

wuzak
354
Joined: Tue Aug 30, 2011 2:26 am