marco polo

iTrader: (1)

wicked results it is a YB engine ?

cheers Marco

Martin-Hadland

iTrader: (2)

it would be nice to see the missing figures from the right hand side too..

Anonymous

Would be more interesting with a few more details TBH, all a bit pointless just showing that.

Be nice to at the very least see the boost figures.

Martin-Hadland

iTrader: (2)

would also nice to see cell air temp listed too..

Anonymous

I wouldnt mind knowing the lift on overlap figures too, but im guessing that would be pushing it

Disabled Account

And barometric readings......

Porkie

iTrader: (1)

I'd like to know next weeks winning lottery numbers as well please Mark

Martin-Hadland

iTrader: (2)

baro readings can be easily obtained for that area and date if you know where to look/ask

Mike Rainbird

iTrader: (3)

Martin,
You don't get those figures with a "stab test" (accelerated dyno run). Mark knows this and also has reasons for showing the above runs, instead of the full load mapping points .

The accelerated dyno run "massages" the figures somewhat, as the dyno overshoots and never stabileses or "brakes" the power like on the mapping run .

Perhaps Mark could post up the mapping run instead - or perhaps not ?

Please note this is not a diss, you just can't compare accelerated dyno run figures with the full load figures that most other people use - it's like comparing chalk and cheese . Obviously those that don't understand this, will be impressed though .

RANJ

lets just wait for the tarmac

RichardPON

I was quite impressed

Mike Rainbird

iTrader: (3)

Ranj,
Don't get me wrong, I'm not saying it ISN'T impressive, it's just by posting up the accelerated runs, it makes it IMPOSSIBLE to compare to other dyno figures that aren't obtained in this way.

I think therefore that that makes Mark the "dyno Queen" .

MikeR

Would'nt giving certain other infomation give away how Mark has acheived what he has here,

I for one do not beleve there to be many other tuners that give away certain bits of infomation because the educated amoungst us (i exclude myself) would be able to determine other more valuable bits of information.


Mike

Anonymous

I cant really see that a few boost and AFR figures give much away TBH

If he started posting cam durations at .1mm and 1mm of lift and total lift figures and lift on overlap etc then fair enough it would be useful to his competitors, but just quoting the real basics wont be.

Porkie

iTrader: (1)

me too, still am. I like the sound of these GT30's

MikeR

Chip i did not state what figures i thought would be of use so thats an assumtion on your part i'm affraid,

Mike

Mike Rainbird

iTrader: (3)

Yeah, it would give a figure that could be compared to every other Superflow dyno - doing it this way it can't (unless everyone else starts doing accelerated runs ).

On this occasion, I'm just doing what Rod did to AG1K when he posted up his "massaged" rolling road figures .

Anonymous

Indeed it was, based on the fact thats all that people normally post up when they run on a dyno, as engine build details arent on the sheet anyway cause the dyno doesnt know what you have done internally!

Fiecos Dan

How much would a acceration run and a hit and hold rpm run differ on figures?


So if its a power run it could be put against a good rollin road run (with a pinch of salt)

MikeR

Like i said the educated amoungst us myself excluded,

Mike

Mike Rainbird

iTrader: (3)

Danny,
On a 153bhp Pinto, it adds 10bhp...

I don't know how it would affect a bigger horsepower engine, as I have never seen one run in this way. However, I fully intend to get a direct comparison as soon as there is a big power engine on the dyno next time .

R4N SS

iTrader: (6)

impressive

but why post figures with missing data if you are going to post at all.

Mike Rainbird

iTrader: (3)

Read my posts you twat .

Stavros

Its all too easy to mislead with stuff like this.
But TBH i still fancy having my engine dyno'd anyhow, as no matter how useless it is, a nice big number on a dyno sheet is always good to have.

Dyno- Hi Mr Tuner
Tuner- Hi Mr Dyno Operator
Dyno- So how much power do you want your engine to make today?
Tuner- 2000bhp and 2500lb/ft torque please sir.
Dyno- No problem, let me just change the settings a bit, and we ready to lie, i mean, rock.



When it comes down to it tho, regardless of numbers, the MAD cars always seem to do the business so its not like its all big numbers and no proof, thats left to other people...

Mike Rainbird

iTrader: (3)

EXACTLY, Mark's engine's always speak for themselves, so I am TOTALLY confused as to why he shows these figures and not the full load ones .

MikeR

Steve you have said what i was thinking

mike

Rhys

Fookin ell like mothers meeting in here somtimes with the handbags at the read.

If anything realting to figs etc is put on it has to be disected and analysied down to the tinests of detail

Mike Rainbird

iTrader: (3)

Rys,
Because people don't like bullshit (as can be seen with Rod's posts about the NMS car for example - and rightly so ).

Anonymous

Ive never seen ANYONE moan at the dyno figures people like Doug have posted from harveys which have all the details you need for it to be meaningful.

Its only when people post half the picture that others (like Rod) complain.

MikeR

But is Mark not the only person that has got a GT30 or what ever turbo to run with no surge ?? i am not sure what turbo this is running so thats just a spectulative comment


mike

Anonymous

Mark is exceptionally good at getting turbos to run with no surge, even Rods GT35 had none at all.

NO ONE AT ALL in this thread is dissing Mark or his abilities, we all have plenty of respect for mark, but what the hell is the point in posting a graph that may as well be from an etchasketch instead of a dyno due to the lack of any data about it?

Fiecos Dan

I'm runnin a identical AET GT30 turbo as this thread, and i dont see any surge wot so ever, and i have mapped it for full boost all the way thro.

i hit 33 psi at 3950rpm

Fiecos Dan

I think you find Mark didn't post the graph's. He has only answer questions about this.

MikeR

Never said anybody was dissing Mark was purely a speculative comment like i said chip,


Mike

And as Danny said Mark never posted this graph maybe Sunny kept infomation of or the owner requested it be kept of , in many eyes pointless but until you get the rest of the infomation why worry

Anonymous

I didnt say Mark had posted it!

Fiecos Dan

i know, but it read like it.

Mike Rainbird

iTrader: (3)

Jock,
It is the GT35s that some people find difficult to prevent surging. However, anyone who has an engine dyno to play with knows how to get rid of by speccing the correct cams / head work . Also, it is only an issue with incorrectly specced 2.0 litre cars, the larger capacity ones (such as Rod's) are easy, because the engine is inherently more capable of processing more air due to it's larger capacity, so has an immediate advantage over a 2 litre car .

MikeR

I know it was GT something or other

would extra information give away the compression ration as i got the feeling that it was or a higher compression then normal ??


Mike

Anonymous

It wouldnt give it away no, although it may hint at it, but without the spec of the cams it wouldnt mean anything much anyway if someone tried to copy it.

Knowing half of whats done in an engine isnt much use TBH so i cant see the need to be secretative to the extent of hiding boost/baro/afr/temp/fuel

Rhys

CAn see where your coming from, but still seems like when anyone post figures everyone seems to like to try the damdest to disprove them

Though im not techincial mindied with cars so even if all the figs was there i still wouldnt have a clue what it was telling me