Yep, I think the factory figures were 321 and 325 respectively. First time on a RR so will be interesting to see the actual with a few miles on the clock.
See you later Martin.
S54 Titan Silver metallic. Black leather, most factory options including sunroof, Becker Cascade and Becker Silverstone changer.
You’re talking about flywheel figures. Dynos read WHP then factor back if you want a comparison to OEM claimed flywheel figs.
We seem to do that a lot here, but in the US and tuning circles, most talk is of real world power at the wheels. A stock S50 would be low to mid 200s at the wheels depending on the dyno I reckon. Although you can make a dyno read what you want if it’s all about bragging rights.
They all read differently too, some are generous, some are tight.....It’s all about enjoying the experience and doing like for like readings once tuning changes are made.
In the bike world we always talk RWHP, but it just doesn’t sound as impressive as flywheel power in the pub!
I think my s54 put down 267 bhp at the wheels on our "American" dynojet chassis dyno at work. For reference a 3.2 e36 puts around 253-257 from the various ones we have run over the years.
310 calculated and 304 doesn't sound too bad, but like Fok says depending on the oppo strapping and running the rollers they can be 'tweaked' somewhat. Comparing the other cars on the same day gives you an idea.
OK no worries, I was interested in figures from UK S50s as I never ran mine pre conversion. There's loads of figures posted online from M3 3.2 but not for UK MC or MR.
I know you need same dyno same day (and same car, to be fair ) for accurate comparisons but even ball park indications would be interesting none the less.
I dont know for sure but I'd have thought similar to the e36 m3 figures I posted above, perhaps fractionally down. The only one we have run other than mine was a v8 Roadster! V8 conversions must be as common as muck! Haha
We seem to do that a lot here, but in the US and tuning circles, most talk is of real world power at the wheels. A stock S50 would be low to mid 200s at the wheels depending on the dyno I reckon.
Figures I've seen for 3.2s are around 255-265bhp at wheels which sound about right. Wouldn't expect more than 50bhp loss(?).
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