There was a piece of mini history today in a little known part of the United Kingdom called Kenilworth, where a select crew of british drivers decided to do a dyno session on a dynapack dyno at thor racing and measure HP the american way....at the hub!

temperature on the day 6 degrees celsius = 42.80 farenheit
pressure: 991 millibars(mb) = 99100 Pa(scals) = 0.978041atm
relative humidity: 90%

here are my 3 graphs from the day for:-
1. Power (hp at the wheel hub) ratio= 4.610 tcf=1.0 gain= -8.9
2.Torque (ft/lb) ratio= 4.610 tcf=1.0 gain= -8.9
3.AFR ratio=4.610 gain = 0.6

the three variables above being on the vertical axis and rpm from 2027 to 6997 on the horizontal axis.

power 205 hp at the hub @ 6997rpm
peak torque 182 ft/lb @ 4185rpm
boost: 14.37psi

car spec: facelift supercharger, later gearbox, 17% pulley, stock head, stock injectors, stock cam, miltek manifold+catback, grs a2a, jcw box, stock map, bbr bonnet ram scoop

 

I notice different ratio and correction factor than my graphs; could you provide climatic/atmospheric & altitude info for the session please?

 

hi, i will try to find out, just to clarify, when you say climatic and atmospheric - do you mean temperature and pressures?

 

i'm not sure what units you use, here are the figures below:-

temperature on the day 6 degrees celsius = 42.80 farenheit
pressure: 991 millibars(mb) = 99100 Pa(scals) 0.978041atm
relative humidity: 90%

i don't have an altitude reading, presumably atmospheric pressure today in kenilworth,england,UK is sufficient? as this will vary at any given altitiude anyway?

and the ratio and correction factors are as follows:-

1. Power (hp at the wheel hub) ratio= 4.610 tcf=1.0 gain= -8.9
2.Torque (ft/lb) ratio= 4.610 tcf=1.0 gain= -8.9
3.AFR ratio=4.610 gain = 0.6

i've added the above info to the first post.
not sure what all these factors mean, so please do enlighten me!

i do recall someone saying these factors are generated to take into account the temps/pressures on the day so that hp,torque figures generated can be comparative with figures obtained in different locations and different weather conditions?

 

Yes, that is why those conditions are recorded, and thank you for sharing. With the DynaPak, things like ramp time also have an impact, but I don’t know enough for further comment. Atmospheric pressure can vary with weather conditions also, and altitude will affect oxygen density. FYI, your pressure converted to PSI was 14.37. One thing is evident at a cursory glance; the peak number is very good considering very high humidity at the time.

 

Well here are the other dyno results with mods of the cars involved as well.
it's worth mentioning that the RMW head underperformed as the map was a little too rich.

Copy of Thor Dyno Results-2.xls

 

Oooo this is hard to pass up, Paul’s shop tunes the top four, his tuner maps the RMW head equipped MINI too rich, Paul runs the Thumper head MINI up another 600 rpm more than any one else but can’t beat the RMW’s numbers, and the Thumper self touted torque monster head can only best a JCW head & pulley by 5 lb-ft torque even with a 17% pulley, and a stock head & map by only 2 lb-ft. Those dynos sure can be disappointing sometimes.

 

Yup totally amazing day, to say I'm gob smacked is an understatement.

We run out of time to work and tune the car this week but got it togeather for the dyno day came up against a few problems, grey coating had come off the blower so had to put a teflon one on.

The 380s run out of fuel, we were making 224 from 6600 to 7700, on the road I know it was reading 13-1 at 7000.

So though I'm disappointed I didn't have my **** togeather on the day, I do believe there is more to come.

We've got a forum shootouut at the dragstrip next Sunday with about 120 cars turning up so I need to get it sorted for then, if its still in one bit I'll take it back to Thor the week after.

The biggest amount of laughter came when the owner said it doesn't matter what it does on here (dynapack) its what your time ticket says that matters

Congrats to Blue Al on his win with stock valve inlet shed head making 238 hub horsepower

Please note, that it doesnt matter whether the results are good or bad we share with the community our findings

 

97 degree day, 80% humidity

198 whp
188 foot pounds of torque

Mods listed below.

 

you guys stateside may be able to shed some light on this....jove's car with the RMW head has a jcw ecu - the tune on the car doesn't work so well with this ecu, hence the fuelling is rich. ruskin's and alski's maps worked well and they're 1320 maps. both car's have cooper s ecu's. it's specifically the jcw ecu's that this happens with apparently???

 

Wow, I expected a little more form the UK considering the amount of trash talk that has come this way. I'd say you're lucky as well, seems you have some generous numbers there as a stock tune has never made over 195 in the States.

 

You can't compare maps from one car to another. Joves has an RMW head and the others don't. Each tune should be done on a dyno and the parameters set to the uniqueness or needs of each engine. Sounds like Joves tune was off.

I'm wondering why Joves red line set at just 7,090? That head could spin to 8 with no problems. If you want to be conservative set it at 7500.

I'm surprised that no one broke 200ftlb's. Just goes to show you that getting the tune right is really the only way to get the most out the parts used.

Longboard

 

OK, I'll grant the possibility there's a hardware problem and everything is not sorted out with the other configuration. Gee, as readership we must put up with all the trash talk, but can't poke fun back at the agitators.

I'm aware of at least one DimSport tuner that has had no problems getting a tune to stick on "JCW ECUs" so I can't help you with that one.

 

My car is a JCW ECU.

EDIT: I should clarify. The ECU's are all the same, the JCW tune is just a flash of the stock ECU. So in reality there is no difference.

 

Mine also had a JCW flashed ECU before Jan tuned it. Been sense last summer and there is no loss of the tune, still runs like a champ.

 

Joves and Blue Als were taken to 7700.

Looks like No racing today because of our wonderful English weather, rain rain and more rain.

 

this was a great exercise in proving exactly what I have been saying over and over...........Our full kits are matched to give you the most performance possible


There is NO ONE IN THE WORLD REMOTELY CLOSE TO WHAT WE CAN DO with the M45

Bad tunes and improper parts matched with our head degrade the effectiveness of it. Our headers outperform them in area under the curve and peak. We have spent countless hrs developing them. Just because people can't tune our parts correctly doesn't mean they don't make that big power. We have shown it around the country. Imagine how hard it will be for you to make these last 50whp

Looks like Danny's car had more tq from 2800 to 8,000 rpms than the 1320 car had at it's PEAK

For those that have problems with math..... that's MORE peak tq for 5200rpms

RMW FTW.........................

 

What is 1320 cam? it is the first time I heard there is a 1320 cam. I have already RMW cam.

 

You're so funny Jan

What we have to remember is that we actually dont know if this Dynapack reads like Churches in CA or like the one in Texas where you have to x by 1.15 to get the figures to read like Churches.

Dyno:
Call the shop (Autoscope 972-867-7467) to get PDF versions of your dyno plots, they can email it to you. I spoke to the shop about the dyno accuracy, and my take away was that they had similar complaints, gee thanks for taking care of the problem before our event. They had the action to check for any software updates and investigate what Jan had complained about, which is water cooling to the dyno itself. It seems like we were working it maybe a little too much for no active water cooling.
Also, from what I can piece together, including chats with Jan, if we take our results and multiply by a factor of 1.15X we should be much closer to the 'real' numbers for the car, this would be for hp and torque. Maybe Jan can comment here.

My dyno time:
I only needed 1 hr on the dyno, and finished with a 212hp/170tq on that machine, scaling that would indicate a 244hp/196tq max, and I can live with those numbers. My MINI is a beast, AND driveability has been improved all around.

 

As I said before, I've never seen a stock tune make over 195whp in the States. By that observation, I'd say it was reading 10hp high over most Dynapaks. Even if we throw that out and call it even to Churches, you guys lost your ***** on this one.

 

ROFLMAO..... based on the numbers of the other cars yours reads high

NOT ONLY THAT......it was set on STD instead of SAE and in 40degree weather it was baiting the numbers higher

this just get's funnier as we go forward

 

The other is we dont race dynos we race cars in the other lane, why haven't Danny, Kelly or bighowe shared with the community what these high horsepower cars do acceleration wise??

We know that that Mini Morgan shared his 30-70 in 3rd Et's with us on Mini Torque the other day using the same datatlogger as big howe.

I would of thought Longboard would of done the same espically as is breaking new ground with the Rotrex.

With the V-Box only £329 and the dollar at 1.38 to the £ it makes perfect sense to have one even if its between 4 of you who live locally to each other.

Maybe Gnaster can log some time as he has one to improve his track times very succesfully I might add.

 

Newmans cam = 1320 cam = RMW cam
All the same no special grinds

 

Haven't you, didn't see it with my own eyes but Jan did

https://www.northamericanmotoring.co...m-and-ecu.html

 

You are wrong again............. we have numerous grinds for different applications...... Please stop posting like you know what is going on. You are getting second and third hand info