Does anyone have a link or a dyno sheet with the torque curve of a stock 3.5L sports or VR-X ?
I want to know where max torque is and how much you have at various points in the rev range.

cheers

Yeah I've been wondering that too. Would be nice to know optimal revs to change gears at, etc.

wouldn't u just need to find out peak torque and peak power? i found those figures for my old TM 1st gen without a dyno. search on the net.

Here's the power curves, (not torque), that we had from a dyno day a while ago. Remember that power is directly related to torque. The thing I found is that peak power for my car was supposed to be around 5500rpm, on my dyno chart, peak power arrived around the 5000 mark.

http://www.geocities.com/redavsmagna/current/dyno_20030726_all.jpg

With a power curve you can calculate a torque curve and plot it - once you've finished you'll have a torque curve showing as many points as you calculated. Calculation is as follows
Torque(nm) x RPM / 9549 = power in kilowatts
or torque(lb/ft) x rpm / 5250 = horsepower
So you rearrange the equation to get torque instead :P
only problem is that graph doesnt have an rpm scale, which is really really poor :/ *slaps redcliffe dyno*

Matthius

only problem is that graph doesnt have an rpm scale, which is really really poor :/ *slaps redcliffe dyno*
That's right but most of them do that. To graph RPM they have to hook extra wires to the car. But if you want to know what RPM you're doing for what speed then you can easily do that on the road.

Interesting to see the 2 Std VR-X plots show a difference of 11KW between them.
What gear was that in ? It looks like 3rd based on the final speed of around 120kph.

Interesting to see the 2 Std VR-X plots show a difference of 11KW between them.
What gear was that in ? It looks like 3rd based on the final speed of around 120kph.
One was a tiptronic and the other a manual, a 10kW difference is pretty typical. It was done in third gear. And I'm happy to say my car still returns about the 158HP :D. Can't wait for the next run :badgrin:

That's right but most of them do that. To graph RPM they have to hook extra wires to the car. But if you want to know what RPM you're doing for what speed then you can easily do that on the road.


Aye a lot of them do it, doesnt make it any less slack, all it requires is the injector pulse pickup/ignition pickup attached(1 clip). You can check your car, but how do you check against another car :P we'd never give anyone a rpmless dyno graph with our dyno because it renders them fairly uninformative.

Matthius - picky on dyno graphs

Well, a lot of people who get a chart are only interested in bragging rights. They aren't interested in the specifics or reading a graph. John who has a graph with 120kW and a fairly torqueless curve will still say his car is more powerful therefore faster than Steve's who has 119kW but a fatter torque curve.

Next run I will be getting rpm on the chart. That an AFR's again.

If you do a search in this section you'll find dyno charts of my VRX 3.5 Manual dyno's in stock form and after CAI and extractors.

Mine peaked torque at 4k and Hp at 5k.