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Powergraph

PostPosted: Sat, 06 Dec 2008 9:55 +0000
by mx5ash
So think i have got Dll working right and done a power run.
Here is the resulting power graph
Image
I've been told the power loss from engine to wheel is 23bhp
So assuming everything is correct that would be
129bhp 118lb ft
From a 1.6 auto with link ecu, jackson racing cai, decat, ss exhaust from cat back.
So what ya reckon?
If anyone would like to look at my map and make suggestions then i can send it to you.
Cheers Ash

PostPosted: Sat, 06 Dec 2008 10:31 +0000
by Steve
cool! can you send on a screenshot of your car definitions?

PostPosted: Sat, 06 Dec 2008 10:46 +0000
by franksm
Hey Ash

23hp is the loss for a manual 5-speed. The transmission loss for an auto might actually be more - would be worth asking the US Powerlist or doing a search there.

What is the 'Contents weight: 264 lbs' ? ;-) Maybe post-Christmas it would be true, but not right now... I always left mine at the default, whatever that is

PostPosted: Sat, 06 Dec 2008 10:50 +0000
by mx5ash
Erm yeah post christmas....right yeah emmmm. Ok enough said about that.
:wink:
Will post car def in 2 mins.
Will try to find out the trans loss in a min

PostPosted: Sat, 06 Dec 2008 10:57 +0000
by mx5ash
Image

PostPosted: Sat, 06 Dec 2008 11:11 +0000
by franksm
Looks like the average is 15% drivetrain loss for a manual, 20% drivetrain loss for an auto.

106hp at the wheels + 20% = 127hp at the engine.

Respectable :-) You are making 1.8-ish power from a 1.6, without the extra tax and insurance. Stick that to the Greens !

BTW what I do with power-runs is to do a run from 1200rpm to redline in one direction, save the datalogl; then do a power-run on the same road in the opposite direction. If you average the two results, you'll get a true figure (otherwise one direction might be skewed by being uphill or downhill)

PostPosted: Sat, 06 Dec 2008 11:26 +0000
by mx5ash
Cool. 8)
Will try out a few more power runs tommorow - if i get the car back together!!!
Frank could you open the files i sent you the other day?
You know in the zone settings is a minus number timing added against the benchmark?

PostPosted: Sun, 07 Dec 2008 12:15 +0000
by Steve
Ash, I solved the text file formatting prob by opening the file and resaving it again in wordpad.
Steve

PostPosted: Sun, 07 Dec 2008 2:09 +0000
by Stig
Hmmmm, I'd like to see what my 1.8 is doing?

PostPosted: Sun, 07 Dec 2008 8:27 +0000
by mx5ash
Think we need to organise a dyno day some time in the new year. Know there is a crowd in waterford who do it. I'll find out about price to get a rough idea.

PostPosted: Sun, 07 Dec 2008 9:31 +0000
by ger
rwhp is what counts or even better power to weight ratio, because of the variation in power loss in different cars between flywheel and wheels rwhp is more a more accurate measure of real world power.

A 200bhp car at 1400kg is 142 bhp/tonne if its 4 wheel it will drop even more power between flywheel and wheels.

Ash 106 rwhp or 129 bhp is very repectable for a 1.6 auto

PostPosted: Sun, 07 Dec 2008 9:41 +0000
by Stig
mx5ash wrote:Think we need to organise a dyno day some time in the new year. Know there is a crowd in waterford who do it. I'll find out about price to get a rough idea.


that'd be cool Ash!

PostPosted: Sun, 14 Dec 2008 7:35 +0000
by Fergus
I'd be on for a dyno day in the new year.

PostPosted: Thu, 19 Feb 2009 1:13 +0000
by Geese
Here's a 0-100kmh of my car using my gps box. If anyone else wants a run done pm me and come up to dublin

Image