results from dyno day...

[Choongas]

Yo bizee_1 you and i need to meet again at the cruise to the gong.

We can work out why the oldest civics there on sunday got the highest results in the B16A section.

Was a good day, some sweet looking rides there and some power to boot.

Any one know where i can get my chiped installed down south?
thanks.

JDM b16a has high comp and stuff = more power??

[Setanta]

No - it's because a lot of the transplant engines into EDs etc often leave off the air-con, PS etc. Also they will run custom exhausts compared to the stock VTiR Civics as the exhausts wouldn't have come with the donor cut.

FYI: 1st gen JDM B16A = 160ps, 2nd gen JDM = 170ps, 3rd gen JDM = 170ps but the Aussie spec only got 160bhp. The parity will be in all the ancilleries the VTiRs are running plus the exhaust.

[Choongas]

yea i thought bizee might have the new generation jdm b16a...

by the way do you get the LSD with the JDMs or were they optional?

[olda]

ginganggooly: hows the hondata?? =)

Yes, Hondata alone should be worth 10kw. So what's cookin'?
I had my DC2 VTiR dynoed with dys cai + K&N, supersprint headers, Remus muffler, ign. advanced a little, (Mobil 1) and octane booster = 93kw
Stock VTiR = 85kw
So, one would expect to see atleast 100kw atw with Hondata.:roll:
Can anyone shed some light on this

DC5R's not that great result either, considering the mods. :roll:
Pitty, no stock DC5R data. :evil:

[azjs]

It's tough to quantify the exact gains from a Hondata unit alone - however ginganggooly has made some recent discoveries that might explain such losses... I'll et him do it though

-az

[BLKCRX]

The simple problem is your all thinking dyno’s are a accurate measure engine out put, well guess what, there not !! There a tuning tool that allows you to tune a car, there based on mathematical calculations, calibration factors, environments, and many other factors.
Comparing a dyno from one place to another even in shootout mode will typically always be different results, the list of variables can go on and on, hell even variables such as the amount of people standing around the dyno fan, the recirculating of exhaust air can make massive differences, if there’s not enough fresh oxygen how can a NA car make power ? it can’t ! What about ECU factors knock control humidity altitude and many other factors….


If you think dyno figures are the end all of everything well your stupid and one minded! A dyno is a tool not a accurate measuring unit, having said that, its almost impossible to compare any results when you think of all the possible factors. The only real way to feel power difference is on the track or the street, but even then its driver dependent.

b/w did you know every time you dyno run your car, or even drive your car it makes less and less power !
Every time your piston goes up and down the bores in the cylinders the rings wear a little more, losing compression and losing power, it might be very small but as a engine ages it power decreases, there’s so many factors to consider no one has all the answers.

Regards James

[Rowie]

well said james.....

[Rowie]

In other words.... if you want to dyno tune your car, and want consistant readings. Then go to the SAME dyno

[BLKCRX]

Same dyno.. but also same condition's

Some factors to consider even on the same dyno on the same day ! which have nuffing to do with dyno settings !!

Bonet open or closed
Age of spark plugs
Engine compression
humidity
Fuel temp
Fuel pressure
Fuel Octane ( octane of fuel decreases as it gets hot / cold fuel return from the engine )
Engine knock retard
Amount of exhaust gas's in the air
Water temp
Oil temp
Engine temp
Intake temp
Tire pressure
Tire temp
How tight the car is or is not tied down to the dyno
Heat of the dyno rollers
Amount of people watching / standing around stoping air flow
and the list goes on..and on !!

Then you have all the calibration factors and settings within the dyno !
Only when you know how to use a dyno / understate how it works will you understand dyno figures mean bugger all !

Regards James

[Chi]

lol, we did have alot of BBQ smoke ....

[luzinit]

We can work out why the oldest civics there on sunday got the highest results in the B16A section.

hehe the older civics got higher results in the b16a section becoz all the newer b16as were STOCK
well nearly all.

[olda]

Same dyno.. but also same condition's

Some factors to consider even on the same dyno on the same day ! which have nuffing to do with dyno settings !!

Bonet open or closed
Age of spark plugs
Engine compression
humidity
Fuel temp
Fuel pressure
Fuel Octane ( octane of fuel decreases as it gets hot / cold fuel return from the engine )
Engine knock retard
Amount of exhaust gas's in the air
Water temp
Oil temp
Engine temp
Intake temp
Tire pressure
Tire temp
How tight the car is or is not tied down to the dyno
Heat of the dyno rollers
Amount of people watching / standing around stoping air flow
and the list goes on..and on !!

Then you have all the calibration factors and settings within the dyno !
Only when you know how to use a dyno / understate how it works will you understand dyno figures mean bugger all !

Regards James

Everything u say is true!
However, we're still looking at the data obtained from the same dyno on the same day.
So, even if we make allowances for all the variables u listed, the car equipped with sophisticated ECU should deliver significantly more power that similarly modified car without it. Don't u agree? Maybe the mods didn't go far enough for Hondata to "kick in"?

Another observation - the case for keeping DC2R stock is getting stronger.

Pitty - no stock DC5R on the day. Judging by DC2R results, it could make a very interesting reading.

Thanks to Tinkerbell for submiting these results! When's the next dyno day? Anything planned in Mel?