DYNO RUN RESULTS!

GPXXX · Post by **GPXXX** » Thu Mar 04, 2004 11:48 am

FTO338 wrote:So when u planning 2 do this dyno day Mikey? So i can organize to fit the Unichip back on again.

i'm hoping to do this by the next mini meet either end of this month or mid next month... then again, that would depend on numbers, but i'll have a chat with Gavin and see if he can cook up a good deal for us. he's a really nice fella...

Scracy, any chance you could bring your dyno sheets with you to the next meet? I'd like to have a look at your power curve when boost + MIVEC is at work... (just so I can have a better idea of how to get my fuelling sorted)

Pre: 77 kW atw
unichip: 86 kW atw

damn, did the unichip give an 11kw gain at the wheels?? that's not bad at all, considering it's only slightly more expensive than the extractors... I would be really interested to see the dynograph. then again, this mod may be useless to me since i'll be running a separate engine management system when the turbo goes in.

but anyways, for the record 106.7kw at the wheels don't mean sh*t to me... if anything, it's more of a brag factor to me, and also to tell me that my car is running healthy... As far as performance goes, i'll let my ET slips from the Heathcote traps speak for itself when the time comes... hehe

G1 · Post by G1 » Thu Mar 04, 2004 1:07 pm

but you cant compare a GR tip to a GPX manual anyway of course the GPX manual will win

all the places i have seen are using the Dyno Dynamics Dynamometer, and as far as i am aware there is a "Shoot out" mode, all the places i have seen use this shoot out mode on their dyno days... so does this not mean that as long as everyone is using this shoot out mode, our readings should pretty much be comparable, only factors to be considered then is the environmental factors on the day like temperature, humidity and your tyre pressure etc

of course the best way to compare 2 cars is on the same dyno and on the same day though

G_A_V · Post by **G_A_V** » Fri Mar 05, 2004 8:56 am

shootout mode doesnt mean crap, remember that one we went to g1, i pulled 109kw @ the wheels, then 6 months later at the uas one i struggled to hit 99kw. different dynos mean different things and the only real way to compare 2 or more cars is a group dyno day.
both dynos were on shootout mode too, and shootout mode is supposed to make up for different conditions to poor out the same result on any dnyo, but it doesnt look like it works.

ruchi · Post by **ruchi** » Fri Mar 05, 2004 10:22 am

As I said earlier, dynos are NOT calibrated to a standard, therefore each one will give a different reading. Likewise each can be setup in a number of different ways (e.g. ramp rates etc).

If you took your car to 5 different dynos in the same day, chances are you'd get 5 different results, some of which would vary greatly.

The true value of a dyno is as a comparison tool. You do an initial run to set a baseline, then make modifications, then go back to the SAME dyno with the SAME setup and do another test. Only then, when you are truly comparing apples to apples, will you be able to get an accurate assesment.

G_A_V · Post by **G_A_V** » Fri Mar 05, 2004 11:03 am

yes but i kept the same settings, shootout mode 6

ruchi · Post by **ruchi** » Fri Mar 05, 2004 11:21 am

From your post above, it appears that although you had the same shootout mode, that you did it on two different dynos, do I understand correctly?

G1 · Post by G1 » Fri Mar 05, 2004 11:32 am

maybe the one you did at UAS was on a hot summer day?, maybe your clutch/tyre wear/tyre pressure/petrol was in a worse state? i remember the one we did at Ricol was in winter time... maybe your car had its service done more recently when at Ricol?

anyway i think we all agree its best to compare 2 cars, or even the same car with different mods, on the same dyno on the same day

nobody has explained uniglide to me yet though

ruchi · Post by **ruchi** » Fri Mar 05, 2004 11:58 am

Just like you can get petrol additives that claim to increase performance, by cleaning the injectors or increasing the octane rating, you can get oil additives that also claim to improve performance or decrease engine wear.

Uniglide is an oil additive that claims to reduce friction, in so doing, your engine can produce more power as there is less resistance to movement.

I guess you'd have to do a dyno test, on the same machine, on the same day, both with and without uniglide to see if it really made any difference

Jono · Post by **Jono** » Fri Mar 05, 2004 12:22 pm

Does that injector cleaning liquid work?

Jono

FTO338 · Post by **FTO338** » Fri Mar 05, 2004 12:47 pm

Jono wrote:Does that injector cleaning liquid work?

Jono

Theres only one way to find out, pull your engine apart.

G1 · Post by G1 » Fri Mar 05, 2004 1:55 pm

ive tried the injector cleaning additive before, just add it as you fill up your tank... i did notice better throttle response straight away... but then ive heard some mechanics say its no good for you car...

i had injector service done for $200 10,000km ago... might be time for another one soon... or should i try this addtive??

kni8ht · Post by **kni8ht** » Fri Mar 05, 2004 8:56 pm

just on the subject of cleaning the Injectors, ahve anyone heard of a product call "WÃ¼rth Complete System cleaner" it comes in a form of a spray can.

What you do it hook up to your vacum hose that connected to the injectors chamber (something on the line of that) and what you do is spray the whole can while reving the car at the same time and all the carbon/black smoke from the back.

It works really good I been told..

I been told you can only get that if you a Lic Mechanic..

anyone come across this or where you can be purchase off the shelf?

G_A_V · Post by **G_A_V** » Sat Mar 06, 2004 6:30 pm

i havent had my injectors cleaned since i have had the car, and i have done like 40,000 kms, shouldi do one ?? how often u supposed to do it ?

payaya · Post by **payaya** » Sun Mar 07, 2004 7:01 am

almost 300 NM? thougth FTO's produced more around 200NM?

GPXXX · Post by **GPXXX** » Mon Mar 08, 2004 5:50 pm

Dynograph as promised earlier...

like i said before Payaya, i'm a little suss about the torque figures (afterall i've only got very minor breathing mods performed). a 50% torque gain with such mods does seem very optimistic, but i'll just take it as it is and stay away from the dyno debate...

Honestly the figures shown above don't mean anything to me until I put her thru its paces at Heathcote...

GPXXX · Post by **GPXXX** » Tue Mar 09, 2004 2:36 pm

MADFTO wrote:That now gives you no excuse for not being able to keep up with me, well in a straight line =)

haha, remind me to leave my subs at home and once i get my carbonfibre bonnet, boot & semi slicks ordered in, we'll arrange a time and place...

my car is actually quite a heavy bugger considering all the gear i've got onboard.... i wouldn't be surprised to see the kerb weight on the low side of 1300kgs with driver onboard!

MADFTO · Post by **MADFTO** » Tue Mar 09, 2004 11:15 pm

with an Apexi AFC, they should of gotten the mivec change over point a lot smoother than that . . . that's just shocking . . .

MADFTO · Post by **MADFTO** » Tue Mar 09, 2004 11:18 pm

*laughs*
I want a carbon fibre bonnet =)

but yeah, guess I have an advantage without 75-100kg of equipment and sound deadening stuff =P

Oh, trust me, tyres like that aren't worth it if you're not going out on the track =P Wear life is about a service for me for the front tyres, maybe a little longer =)

GPXXX · Post by **GPXXX** » Tue Mar 09, 2004 11:33 pm

MADFTO wrote:with an Apexi AFC, they should of gotten the mivec change over point a lot smoother than that . . . that's just shocking . . .

well according to the mech, when MIVEC kicks in it runs a little rich on the fuel mapping but this is normal on all VVT-equipped engines...

but yeh, the MIVEC transition on my car does not seem as smooth as some which i have seen which can also be a good thing haha...

MADFTO · Post by **MADFTO** » Wed Mar 10, 2004 4:05 pm

*laughs* you trying to emulate the famed VTEC YO!!!!! kick? =PPP