BHP vs WHP Dyno Debate

[Paul Webster]

Big Show you forgot the icing on the cake, a time at SOW.

You have to remember which is more impressive that Sean has gone 1.26 with less components / $$$$

I was going to put Pro Driver behind Sean, but what is classed as a Pro Driver in the States Jan? Is it someone who enters sanctioned events ? Or is it someone who gets paid to race a car ?

[MadMick]

Last time I met a BMW Z4 3.0si on the Autobahn, the guy tried about 5 time to overtake me - no chance!
At 155 mph he hit the speed limiter and I was faster and drove him away....
This is a proof for functional engine tuning and real power, no need to argue about dyno numbers ;-)
BTW Max EGT was 830°C or 1526°f above 6500 rpm in 6th gear!

[Revolution Mini]

Originally Posted by paul@1320MINI.com

Big Show you forgot the icing on the cake, a time at SOW.

You have to remember which is more impressive that Sean has gone 1.26 with less components / $$$$

I was going to put Pro Driver behind Sean, but what is classed as a Pro Driver in the States Jan? Is it someone who enters sanctioned events ? Or is it someone who gets paid to race a car ?

roflmao..... yes a PRO driver with my equipment

yes he was in sanctioned events... a national champion

you have a turbo car in So Cal... Bob has on his website that he has run SOW...... he's a pro driver too..... could he beat it in a SC car?
I think we know the answer here

Could he beat it in his Turbo car?

[D-MAN]

Originally Posted by MadMick

This is a proof for functional engine tuning and real power, no need to argue about dyno numbers ;-)

This is the best proof, dyno numbers are only good for internet bragging...

[big howe]

Originally Posted by paul@1320MINI.com

Thats why I said to do the tests in 3rd big howe you shouldn't have any problems in 3rd, then again


at least you've got Cali weather rather than UK weather to deal with

What data logging equipment have you got? can you show us any screen shots etc etc.

Innovate, why would screen shots be interesting?

[Revolution Mini]

Originally Posted by BigShow

It was my understanding from doing some reasearch on dyno's that in the calibration file of every vehicle on a Dynapack dyno the following parameters are entered:

- Drive Ratio
- Car Weight
- Diameter of wheel
- Gear

These parameters supposedly affect the final results which is why it’s very important to make sure these are measured correctly otherwise the figures will be skewed.

after talking to dynapak this is the answer
car weight, diameter of wheel are ONLY used for acceleration testing
NOT needed for dyno runs


this below is what has always been used:
TCF of 1 which is default, no adding of correction

Drive ratio is always used based on the gear you are in
example on a 05 and later gear box 4th gear is 4.61
pre 05 is 4.40 for 4th