285 BHP ! ! ! NOT !

285 BHP ! ! ! NOT !

Author
Discussion

thirsty

Original Poster:

726 posts

265 months

Thursday 19th September 2002
quotequote all
I know there have been a lot of threads on this already, but I had my Chim 450 on Motorvation Motorsport's rolling road this week, and I am getting a whopping 238 BHP at the flywheel.

I know that is about what everyone else gets, but it just seems someone should put up a large banner in blackpool asking for the remaining 47 HP.

The good part was that I was completely satisfied with the "special" service that they are running this month. Good group of guys as well.

thirsty.

neilbprater

1,452 posts

262 months

Thursday 19th September 2002
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Here we go again.

Paceracing

729 posts

267 months

Thursday 19th September 2002
quotequote all
No, TVR figures are quite correct, provided you remove all drivebelts, alternator, fan, sparkplugs, pistons, oil, stand with the wind coming over your left shoulder at 278 degrees from North, with one leg in the air, on a cold wet day, whilst whistling the song 'I've Got The Power' from the band called 'Snap!'
This, I believe is how they achieve these mythical performance figures. Oh and by the way, you will be 47 BHP out if they tested the engine when there is an 'R' in the month!

Jas.

RCA

1,769 posts

269 months

Thursday 19th September 2002
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jacksdad

307 posts

263 months

Friday 20th September 2002
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zippy500

1,883 posts

270 months

Friday 20th September 2002
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How can a rolling road tell you how much power you have at the fly wheel?

squirrelz

1,186 posts

272 months

Friday 20th September 2002
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quote:
......Chim 450...... 238 BHP at the flywheel....


Don't worry - it's still 40bhp ahead of most Chim 400s, and about 40bhp behind most 500s. The figures are just relative.

Jason F

1,183 posts

285 months

Friday 20th September 2002
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Well, when you press the pedal and the car rockets away quicker than the chap next to you, is that not good enough?

cockers

632 posts

282 months

Friday 20th September 2002
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quote:

Well, when you press the pedal and the car rockets away quicker than the chap next to you, is that not good enough?



Exactly. I think we can only grumble if the performance isn't what we expected and I don't hear anyone saying that

spnracing

1,554 posts

272 months

Friday 20th September 2002
quotequote all
quote:

How can a rolling road tell you how much power you have at the fly wheel?



That all it can do - it measures the power put through the driven wheels on acceleration, measures the drag through the wheels/drivetrain on lift off, and whats left is the power at the flywheel.

The measurement at the wheels is dependent on tyre pressures, tyre width etc etc.