dyno run tommorow..!
Discussion
having my first dyno run tomorrow,, had the car 3 years but never had it done. Prev owner has modded it a bit,, be interested to see what it makes.
Any guesses??
1997 chim 450 resonable service history, superflare trumpets , act induction kit with pipercross filter , Mark adams tornado chip..Tuscan seats...
be nice to get over 250 bhp...
Any guesses??
1997 chim 450 resonable service history, superflare trumpets , act induction kit with pipercross filter , Mark adams tornado chip..Tuscan seats...
be nice to get over 250 bhp...
Robert Lees said:
having my first dyno run tomorrow,, had the car 3 years but never had it done. Prev owner has modded it a bit,, be interested to see what it makes.
Any guesses??
1997 chim 450 resonable service history, superflare trumpets , act induction kit with pipercross filter , Mark adams tornado chip..Tuscan seats...
be nice to get over 250 bhp...
The Tuscan seats should give you the edge LOLAny guesses??
1997 chim 450 resonable service history, superflare trumpets , act induction kit with pipercross filter , Mark adams tornado chip..Tuscan seats...
be nice to get over 250 bhp...
Good luck, had mine 15 years before it went on the Dyno...
MPO
xjay1337 said:
I wouldn't bother. You'll only get called a liar by all the "professionals" in the forum. :-(
That's a bit harsh.................I reckon............268bhp and 285 torque.
Always interesting to know that all is running well. If it's 230/250 or there about, you know that the cam might be on its way out.
My supposedly standard 450 produced 276 bhp at the flywheel just after I bought it, then 264 a couple of years later, which made me think that cam wear had set in, but then 278 about a year ago, with no significant engine work apart from normal routine servicing. All these are at Surrey Rolling Road, generally highly regarded as accurate rollers - the first two at Long Cross and the last at Farnborough. I reckon the 264 figure was just an "off day"; perhaps an HT lead was loose or something like that - but even so, 264 ain't bad by anyone's standard.
Admittedly, the 278 was on a glorious cold, crisp winter's day with high pressure - perfect for a good power figure. But the conditions would only have added a few horses. It was one of those days when I wished I could have been flying: the cold, high-pressure conditions make the engine produce more power; the propeller blades produce more thrust; and the wings produce more lift. The aircraft practically hurls itself into the air on days like that!
I feel very lucky to have an engine that produces such strong figures, and often wonder if there's something it's not telling me. There's nothing in the history file about a change of cam shaft, so maybe it was ordered with a different cam? Who knows, but I ain't complaining!
Several people have commented on what a "well-mannered" engine it is as well, with virtually no shunting. It seems particularly good after I replaced all the ignition components; perhaps I should take it back to see Charlie and see what it's giving now...
Admittedly, the 278 was on a glorious cold, crisp winter's day with high pressure - perfect for a good power figure. But the conditions would only have added a few horses. It was one of those days when I wished I could have been flying: the cold, high-pressure conditions make the engine produce more power; the propeller blades produce more thrust; and the wings produce more lift. The aircraft practically hurls itself into the air on days like that!
I feel very lucky to have an engine that produces such strong figures, and often wonder if there's something it's not telling me. There's nothing in the history file about a change of cam shaft, so maybe it was ordered with a different cam? Who knows, but I ain't complaining!
Several people have commented on what a "well-mannered" engine it is as well, with virtually no shunting. It seems particularly good after I replaced all the ignition components; perhaps I should take it back to see Charlie and see what it's giving now...
Edited by Dr Mike Oxgreen on Saturday 20th February 18:57
xjay1337 said:
I wouldn't bother. You'll only get called a liar by all the "professionals" in the forum. :-(
Ah, thankyou! You made me Google for this... enjoy!http://youtu.be/PCFVEvZvo3g
Altogether now (and can someone add the "bow-chicka-bow-wow" accompaniment - ta!): Daa-da-da... Daa-da, daa-da, daa-da-da-wah Daa-da, dah-da-da-da.... Bah, bah, baaaah! Bah, bah baaaah! BAH, BAH, BAAAAH! BAH, BAH, BAAAAH!
(And I know I can rely on someone to do the off-beat high-hat as well.)
Edited by Dr Mike Oxgreen on Saturday 20th February 19:43
Dr Mike Oxgreen said:
Ah, thankyou! You made me Google for this... enjoy!
http://youtu.be/PCFVEvZvo3g
Altogether now (and can someone add the "bow-chicka-bow-wow" accompaniment - ta!): Daa-da-da... Daa-da, daa-da, daa-da-da-wah Daa-da, dah-da-da-da.... Bah, bah, baaaah! Bah, bah baaaah! BAH, BAH, BAAAAH! BAH, BAH, BAAAAH!
(And I know I can rely on someone to do the off-beat high-hat as well.)
Hahah very good :-)http://youtu.be/PCFVEvZvo3g
Altogether now (and can someone add the "bow-chicka-bow-wow" accompaniment - ta!): Daa-da-da... Daa-da, daa-da, daa-da-da-wah Daa-da, dah-da-da-da.... Bah, bah, baaaah! Bah, bah baaaah! BAH, BAH, BAAAAH! BAH, BAH, BAAAAH!
(And I know I can rely on someone to do the off-beat high-hat as well.)
Edited by Dr Mike Oxgreen on Saturday 20th February 19:43
Sounds almost as nice as one of these lovely tvrs.
Not great as I had it setup for video and forgot to switch it back 
CGR Automotive by Greg Feirn, on Flickr
CGR Automotive by Greg Feirn, on Flickr
Very nice result Rob, although it does seem as though your hp is peaking a little early, I would've expected it to top out at about 5,000 rpm or even a little higher. I'm quite sure others on here who have far more knowledge than me will advise if there is anything to be gleaned from that. Lovely looking car by the way & the the best motor choice, all IMHO of course !!
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