Power calculation

[Darrell]

Ok so with this snow, cannot go to work and cannot play with the car so I was wondering if there were a formula to work out power.

I found one..

Alas I am either as thick as a brick or there is some stuff I have never heard of..

BHP = PLAN/33,000

P is brake mean effective pressure, in PSI
L is piston stroke, in feet
A is the area of one piston, in square inches
N is the number of power strokes per minute
Brake Mean Effective Pressure (BMEP)

4 stroke BMEP = (HP x 13000)/(L x RPM)

How the heck do you find out the HP when you have know it to work out the power!

I was wondering what the theoretical hp rating of our engines is

You never know, they may have missed a trick  [-/

[bis13]

darrell dear boy go outside and make snowmen like everyone else..lol the power of the 126 engine is just above a hamster ...

[MaLi]

Interesting...

It reminds me a bit pre-war RAC formula for hp.

If you have some time you could try to play with Engine Analyser (a sort of simulation software) - you might be able work out some tips for getting more bhp from an aircooled engine.

[126dave]

for standard engines take the official fiat hp figure and subtract 10%, for tuned engines, think of a HP figure that will allow you to sleep at night after all the £ and euro spent on 'abarth' bits. i found '40+bhp' allowed me to sleep soundly......

[Darrell]

Wow 40 +
Did it make a huge diference to the car?

[126dave]

Wow 40 +
Did it make a huge diference to the car?

yes, mostly because my wallet was so much lighter lol

[Darrell]

Hey ho, like all good woman they are good at wallet lighten-ing [-/

At least my little red lady doesn't get in a mood...you know the one....picture no sound is what I call it.

[126dave]

lol funny you should say that, mine used to do that....when the 40dcoe had decided to part company with the engine YET AGAIN, or the engine tin had self destructed YET AGAIN,.....lots of silent moods in the workshop.....

[dajwid]

Allegro (Polish Ebay type of thingy) often has 'tuned' 126 with 50 60 and even 70BHP just by changing parts costing less than a tenner.

Fantastic.

Another method is 1 BHP for every £2 you spend on tuning parts.

Pick a number add a few and thats what you tell your mates at the pub.

I always thing my cars have more power when I have given them a good clean. [-/

[hudsonhenry]

Another method is 1 BHP for every £2 you spend on tuning parts

If only that were true!!!

I would have at least 3000bhp by now....

[nathan126]

http://www.otomoto.pl/index.php?sect=show&id=C7285530

daewoo motor?
different 

[goombas]

its a good choice i have to say as for braeking down of old fiat engines or tuned ones