Just after opinions on the difference between these dyno's. Obviously dyno have a margin of difference between each one. But what I am curious about is the difference in power up to the maximum power developed by the TH. You can see that all through the rev range, the standard magna is putting more power to the wheels. In fact the ralliart doesn't put more down till higher up in the rev range, about 1000 more rpm then the magna after which of course the ralliart keeps pulling. At some rpm, such as 4000rpm, the TH it actually putting down roughly 24 more kw's(not taking into account of curse dyno differences.) Does this seem right? What does this mean for everyday driving? If everything else was equal, would the TH be more punchy off the mark. In all this I am assuming that the right hand column on the ralliart dyno is rpm.
Ralliart http://i49.photobucket.com/albums/f274/azkazmagna/Dyno20after20Unichip20-2030-03-0520.jpg
TH http://i49.photobucket.com/albums/f274/azkazmagna/KW30-01-09Medium.jpg
Cheers.

That ralliart printout isn't even graphed to RPM, the x axis is speed in km/h. Can't compare two graphs with different references.

That ralliart printout isn't even graphed to RPM, the x axis is speed in km/h. Can't compare two graphs with different references.
:stoopid:

Whats the right hand column? It's been cut off but it looks like its rpm?

torque

Measured in what scale?

Measured in what scale?

N = Tractive Effort.

http://en.wikipedia.org/wiki/Tractive_effort

The formula is:
T = (TE x r)/(1000 x R)

The tractive effort is obtained by multiplying the torque by the total ratio of power train and dividing this sum by the rolling radius of the driving tyres.
T = (TE x r)/(1000 x R)

Where:
T= Motor torque in kg/millimetres
TE = Tractive Effort in N
R = Overall gear reduction including both axle and transmission
r = Rolling radius of loaded driving tyre in millimetres

Example:
TE = 5400
R = diff ratio X gear ratio (eg 3.45 diff x 1.00 Auto 3rd gear = 3.45)
r = 326.60 mm (18" rim/ with 235/40/18 tyre combo)

T = 510NM

So you need to know:
diff ratio
what gear the run was in, and it's ratio
what rear tyre size is (and convert that to radius in mm)

Right, tractive effort. Ok then, anyone got a standard ralliart dyno sheet? I trawled the threads but could only find the one I attached.

Right, tractive effort. Ok then, anyone got a standard ralliart dyno sheet? I trawled the threads but could only find the one I attached.

Standard Ralliart will make about 130kwatw (give or take 5kw) and around 325-340Nm.

Thanks disciple, I am actually trying to compare power across the rev range, not just peak That's why I am chasing a dyno chart.

Thanks disciple, I am actually trying to compare power across the rev range, not just peak That's why I am chasing a dyno chart.

Well, I can tell you from my experience after being to numerous QMD dyno days, that there's really not a lot in it (between different models). I used to have my old Ralliart Magna dyno graph but I've lost it. Across the whole range there would be bugger all between a Sports/VRX and a Ralliart. Obviously there's more between an Exec and those mentioned, but it only takes a new muffler and some extractors on an Exec to bring it close again.

Have a look at the 3rd gen quarter mile registry, if it's still alive... My Ralliart ran 14.9 @ 154km/h which is about the same as most other Magnas on here with the standard bolt ons (Exhaust, extractors, intake and tune)

ralliart can also launch harder in manual due to LSD

Wow, I found my old dyno...

This was my Ralliart Magna with pacemakers, 2.5" press bent mild steel system and high flow cat plus custom CAI.

http://img42.imageshack.us/img42/6981/magnadyno.jpg

LSD works too... Here's a teaser. I can't find the whole thing which is sad cause they were some good races. :D

http://www.youtube.com/watch?v=KlOryupI83U

Ok, so all being equal(take off, suspension etc) which would be quicker to 100. A stock ralliart or a 3.5 litre TH with a 5 speed 98 manual gearbox?(with the shorter 1st gear)

ralliart because it can put the power down better with LSD

Ok, so all being equal(take off, suspension etc) which would be quicker to 100. A stock ralliart or a 3.5 litre TH with a 5 speed 98 manual gearbox?(with the shorter 1st gear)

Ralliart. Just don't get too much wheelspin and you'll be right.

Here's a stock Ralliart dyno.

Great, thanks, so pretty similar all the way till the ralliart keeps pulling. Sweet, thanks.

Ok, so all being equal(take off, suspension etc) which would be quicker to 100. A stock ralliart or a 3.5 litre TH with a 5 speed 98 manual gearbox?(with the shorter 1st gear)

The TH 3.5L in manual form didnt come with a shorter first gear, only the 3L 6's came with the shorter first gear im pretty sure

True, but one may have done a conversion.:happy:

Here's a stock Ralliart dyno.

I'll see if i can hunt up the print out of a old dyno run of my car at the AMC dyno day in 2006. At that event my car had a stock TJ1 engine in it with the only bolt on mods being the K&N panel filter, pacemaker extractors (with stock cat convertor) and 2 1/2" exhaust. Car made 137Kw's@wheels that day.

I think azkaz is stating he has the 3.0 box in his TH as he stated a 1998 5 speed not a TH 5 speed?

Still the Ralliart should have the upperhand due to the lsd unless the driver of the manual is exceptional driver