M400 Dyno
Author
Discussion

cornel

Original Poster:

30 posts

256 months

Friday 3rd June 2005
quotequote all
Had my M400 dyno tested yesterday and results as follows:

Temp : +32C
Ambient correction : 21%
Fuel : 93 Octane
Altitude : 4200 above sea level (Johannesburg)

Speed : 127 km/h @6537 rpm
Power : 304.4 Kw @6401 rpm
Torque: 472 Nm @5333 rpm

Had exhaust manifold, turbo housing and completed exhaust ceramic coated at 5500 miles. Running a lot cooler and even after driving hard you can put your hand on the intercooler and keep it there. Now at 9000 on the clock.

Would be interesting to year from M400 owners at the coast.

gotapex

229 posts

261 months

Friday 3rd June 2005
quotequote all
Thanks for sharing!

I hope I converted this right.

304.4 Kw = 408.2 hp
472 Nm = 348 lb-ft torque

Are those numbers at the wheels, or crank?

matt_fp

3,402 posts

272 months

Friday 3rd June 2005
quotequote all
Hi Cornel.

I'd be interested to know what correction factor was used (probably SAE-J1349, chances are it will say on your print out somewhere) and the actual CF value.

Whilst corrected results do have a use I always prefer to use the uncorrected "raw" data as I find it much more useful to have an idea of the power an engine is producing in its 'usual' enviroment than know what it was producing if conditions were perfect/standard.

Glad to hear you've got the temperature issues under control though and pleased to hear your racking the mileage up nicely

Best Regards
Matt

cornel

Original Poster:

30 posts

256 months

Monday 6th June 2005
quotequote all
Figures at flywheel. See nothing on the report about the correction except 21%. Will find out.