I was at a rolling road at the weekend and the results seemed a bit strange to me Like a 1.6 focus getting more torque than my 1.8 and some N/A cars getting more torque than BHP.

I thought this only happened with charged cars to get more torque than bhp or am I wrong with that

Here are the results

Car.......................BHP.......Torque

Focus 1.4.............98.9........105
Mondeo 2.5 V6....184.1........170
Fiesta RS Turbo..128.7........137
Focus 1.6..........122.7........140
Focus ST170......186.2........162
Focus 1.8..........125.4........135
Focus RS..........274.8........315
Focus 1.4............81.1........100
Probe 2.5 V6......141.2........149
Focus 1.6...........101..........118
Focus ST3.........194.5.......195
Renault clio 172..171.7.......155
Focus 1.8 MP3....119.7.......127
Focus 2.0..........129.4.......136
Focus RS............263.8.......308
Focus 1.6 mk2...106.2.......120
Focus 1.6.........113.5.......114
Escort 1.8 Si......146.9.......139 My Car
Hyundai 2.0.......133..........147
Escort RS2000....147.5.......158
Pug 406 2.0T.........56.3.......100 the turbo was sucking not blowing
Focus 1.4.............92.5.........95
Focus ST170......161.5.......147

Cheers for any input

Steve

 

ya put a rev limit on them

 

Yes providing they make peak power under 5252rpm they will have more torque than power by definition.



Typically they wont though, as it would mean them not having much power.


Older engines do it for a pasttime though.

 

Some of those focus readings look a bit out (can't talk about the others - but have attended more focus rolling road days than i care to remember!)

Dare i ask who's dyno it was on?

 

The dyno was this place:

TEG Sport (Town End Garage),
Sand Lane,
Warton,
Carnforth,
LA5 9NJ




This was my results from January also featured in fast ford just recently April 2006 issue 238, turn to page 63
157.9bhp

149.5lb ft

 

Cheers Chip

 

3rd gear runs?

 

Essentially production cars are normally limited to about 70 lbft per litre

Up to around 100lbft per litre is possible, any more than that isnt really possible, even on full race engines.

 

What should the new focus ST get as standard or the V6's in the results?

 

Didnt know that

 

It all comes down to the fact that no matter what you do with fancy cams and intake lengths and all the rest of it, you will fundamentally never get significantly past a certain amount of air into an engine when there is no boost involved.

Even if you hold the piston at the bottom for a week to give it plenty of time to fill up a 500cc chamber is only going to hold 500cc of air, which in turn limits the amount of petrol that can be burnt at the optimum AFR (around 12.5)

Its actually fairly obvious if you stop and think about it in terms of the volume of air that an engine can consume.

 

Cheers