Dyno day @ Surrey Rolling Road Sat 8th November

[pony]

How do they measure power at the engine and power at the wheel ?

dyno dynamics just multiply bhp x 0.8 to get wheel hp and from wheel hp /0.8 to get bhp.

it doesnt measure coastdown losses like others

Why is it 0.8 ?

[jimbom30cab]

Some pics below:

With the M52, I was a little surprised as the Rolling road print out I have when it was another zones has the peak at 225bhp. The dude there thinks the MAF might be dodgy but other people suggested the coolant temp sensor or the oxygen sensors.

I have a MAF from a e46 328i - Is it the same MAF as i could try that and see if it helps. Regarding the map of the ECU, i'm not sure (hence asking Dan above) but I thought it was mapped and EWS deleted by Dan this summer. Not totally sure so will need Dan to confirm or deny that. Eigher way, A couple of new oxygen sensors and a coolant temp sensor is no bad thing to change anyway. Not overly fussed as the MOT emissions were very low and 215bhp is pretty good anyway.

The M30 was well down but I know it has a fueling problem so need to look into that.

Great day, good fun, nice to catch up with people and meet some new enthusiasts also.

I was starting to think that eigher we had overly high expectations of the cars tested today, or that dyno is a low reader as (apart from Pony) quite a few were lower than expected.

Just uploading the photos to photobucket now.

[jimbom30cab]

Hi Dan, pretty sure I asked for it mate, would it be possible to pop the ECU in the post for a "check"?

[rich318i]

well if your setup jim 222bhp my set up should P++s that easy. Wish i come today now and see some glum faces

[jimbom30cab]

^ great, have a blue peter badge

[rich318i]

^ great, have a blue peter badge

get yours sorted and bet you see 226bhp

[DanThe]

Hi Dan, pretty sure I asked for it mate, would it be possible to pop the ECU in the post for a "check"?

Yes I think you did now I think about it, I doubt you have an E46 MAF as they have a different connector plug.
Lambdas and temp senders rarely give problems so I would leave them alone until you have had it checked for fault codes

[rich318i]

OPPS that another blueprint map AKA not worth a toss but EWS delete. worth all the 90 quid

[DanThe]

OPPS that another blueprint map AKA not worth a toss

Should have gone for the twin ECU setup eh captain..

[rich318i]

eye eye sir, chocks away

[jimbom30cab]

Here we go in no particular order

Barry's Tech2






Pony's tech 1



National express coach scars



Pnoy's stickers



Very nice Chromie, can't remember the dudes name, nice bloke also







Henry's M52





Dudes



Barry's



Do you think he looks like an expectant father !!





Star guest appearance from the Millennium Falcon




My cab stinking the place out with petrol



Simons Alpina



My M52



Simon's M5





Great looking e46 330 owned by Matt, BMW guru !!

[rich318i]

sweet nice setup!!!

[German-Whips]

Which one of those guys in the pictures is Pony?

[ross_jsy]

It certainly feels strong enough and Matt with the 330Ci had to go some to keep up on the way to the Dyno today.

As for custom map, AFAIK the motronic 1.3 can't be live mapped. You need an emulator of some sort and a eprom burner.

A faff in other words.

Was thinking more along the lines of the (I think its called) WAR chip? Get the benefits of a mappable ecu without losing the things the standard motronic is great for like warm up maps etc. Think they even support MAFless, but it's been a while since I have looked at m20 stuff.

Suppose it's a question of where do you stop and also diminishing returns.

[Kos]

Chromie cab belongs to Sandeep Gill. He's had it for years and it did well on th rollers. 165bhp

[rich318i]

222bhp is now benchmark for M52b28 im going to kill that spec sorry but ive been in some and mine is
off WOW!!!! FACTOR!!!!!

S54 bods not need to apply a comment on this matter (BUT BE SCARED) you know who you are

[rich318i]

WOW FACTOR LIVES AGAIN!!!!!

[87mtech27]

Wow

[reggid]

How do they measure power at the engine and power at the wheel ?

dyno dynamics just multiply bhp x 0.8 to get wheel hp and from wheel hp /0.8 to get bhp.

it doesnt measure coastdown losses like others

Why is it 0.8 ?

some made up number that seemed to give best answers on the test vehicles i gather. i think its a little generous but thats JIMO and why cars with mileage make quoted bhp numbers and also why you get some odd numbers coming out from time to time. but its the same for everyone on the day

if i recall it changes a % or two depending on the mode. for example "shootout_6" (NA 6 cyl) might be different to "shootout_4" (NA 4 cyl) etc etc

[reggid]

Here we go in no particular order

Barry's Tech2






Pony's tech 1



National express coach scars



Pnoy's stickers



Very nice Chromie, can't remember the dudes name, nice bloke also







Henry's M52





Dudes



Barry's



Do you think he looks like an expectant father !!





Star guest appearance from the Millennium Falcon




My cab stinking the place out with petrol



Simons Alpina



My M52



Simon's M5





Great looking e46 330 owned by Matt, BMW guru !!

some excellent chariots among them

[pony]

dyno dynamics just multiply bhp x 0.8 to get wheel hp and from wheel hp /0.8 to get bhp.

it doesnt measure coastdown losses like others

Why is it 0.8 ?

some made up number that seemed to give best answers on the test vehicles i gather. i think its a little generous but thats JIMO and why cars with mileage make quoted bhp numbers and also why you get some odd numbers coming out from time to time. but its the same for everyone on the day

if i recall it changes a % or two depending on the mode. for example "shootout_6" (NA 6 cyl) might be different to "shootout_4" (NA 4 cyl) etc etc

I'm no expert but given they seem to measure power from the rollers and don't physically have the engine on a bench they can probably measure the power at the wheels reasonably well. However, the power at the engine and the power losses from the drivetrain I am assuming they probably have to estimate.

[reggid]

yeah its always an estimate, even the ones that claim to measure losses. what they measure when they measure losses are coastdown losses not the drivetrain losses that get you from wheel hp to crank hp. they just fudge it with software trickery close enough so people are generally none the wiser and will happily hand over the $$$.

don't get me wrong if you do it consistently it becomes useful and its the same for everyone...you just need to know the limitations

[Kos]

so, i rocked up and got some photos as well as throwing my 330i on to the dyno]

winx m52's track slag



on to the dyno she goes



OMG



She did alright



he grabs a quick photo of the monitor

[Kos]

barry's queen goes on



he's looking nervous



Charlie is looking nervous



Barry certainly looks disappointed with his 177bhp

[Blitz]

[Kos]

Pony's earls court national express drift (soon to be asbo) whip


let it rip




one last photo before it blows up ?



boom, 52 brake pony power



disappointed pony ?



only joking, she made a pretty healthy 165bhp



pony looks around bragging now lol



even phil and simon look shocked

[Kos]

Sandeeps lovely cab



made a healthy 165bhp as well



seriously clean car





him and phil having a chat about the old girl



Nick & Sandeep looking on at the monitor as the run was made

[Kos]

some other shots from the day

can't remember who's this was, but it sounded nice am made good power



everyone looking on as another turd is running



simon looking like he's had a bad day in the office



blitz looking outside at pony who was doing celebratory doughnuts



jim with a rather smug grin on his face



a couple of the staff laughing at my numberplate



my brother in law mario pleased that his ep3 made factory power



the V8 cabrio that dropped its coolant during its run

[jimbom30cab]

Great pics Kos, wish I could take photos like that

[pony]

Kos was like a bloody spy that day sent by IS from Pakistan!
Kos your 330i did superb! Didn't realise Alpina exhaust was that good.
Barry 177bhp is still really good. Above standard. Just do 1 mod at a time so you know what changes they do.
Nice to see a couple is 325i doing 165bhp given their age
That Sport with 174bhp was pretty jaw dropping with that. The Scorpion sounded really nice.

[biggill]

Chromie cab belongs to Sandeep Gill. He's had it for years and it did well on th rollers. 165bhp

Cheers Kos, yeah well happy with 165.

Thank you Barry for organising, nice meeting you all.

[biggill]

Watch out Kos is about lol.

Quality pictures

[Laith]

So does anyone know any decent welders?

Apparently I need a new exhaust. The v8 isn't farting well apparently.

[Kos]

Watch out Kos is about lol.

Quality pictures

LoL always Gill

Kos was like a bloody spy that day sent by IS from Pakistan!
Kos your 330i did superb! Didn't realise Alpina exhaust was that good.

Cheers bruv

As for the Alpina exhausts, they are pretty much the best ones out there. They put in a real effort to make them work.

Great pics Kos, wish I could take photos like that

Cheers mate, taking photos of just the cars would have been boring. Catching the atmosphere is far more interesting

[pony]

The other tech2 Sport had a Scorpion had a nice rasp to it !