Stine

Hi guys, here i'll post the dyno of my S2000.
It's an European AP1, year '00, 139500km (86629.5 Miles).
I decided to dynoed it now with few mods, to see what kind of improvement i will get with the next upgrades...

The car has:
- Self made 63mm Test Pipe
- T1R 63mm Catback n1
- Puffo Airbox with stock oem filter

I dynoed it with 98ron fuel.
Here in italy the standard Fuel is 95ron.
Then there is the 98ron (recommended on the s2000 fuel cap)
And the 100ron.

So the Temperature was 8.4° Celsius and 58% of umidity.

Here the Dyno Results:
Sorry but in the graph there is not the Wheel power, but just the Corrected Engine power.
I did 2 test, and the second was the best.




This was not an INERTIA DYNO, but it was a STEADY-STATE DYNO (breake one).


At the end of March i have another time to dyno the car with 71-69mm throttle body, Bored size 69mm Inlet manifold (polished inside), Vision Fuel Press regulator set with the Aem Wideband.

Then i will fit the Try Y Exhaust manifold j's racing style, and i will dyno it again.

Finally the tuning of the ecu...
I think i will try a piggyback before, like an Apexi AFC neo, and then an AEM EMS...

Stay tuned

Stine

For the guys interested in the comparison Stock Airbox vs Puffo, here is the dyno results of a stock s2000 with only test pipe and catback.
Same year of mine, similar engine\transmission oil setup, pretty much the same mileage.

Max Power 229 hp at 8212 rpm
Max torque 21.57 kgf.m at 6295rpm



Well it's not like the same car, but the operator says stock s2000 dynoed 230hp at the best, on his dyno...

H22toF20

So are the 2 plots in the second graph comparing the puffo to the OEM intake or are we supposed to compare your numbers to the other graph?

It clearly needs a tune, but I believe a 100% AP1 needs a tune. Even more so if it has a test-pipe.

Stine

well the first graph is mine, with the puffo.
The second graph is a stock s2000 with just test piep and exhaust.

and yes i need a tune, but i will do it at the end, after bored TB, intake manifold, exhaust headers...

deepbluejh

Wait a sec... why are you graphing "engine power" and not "wheel horsepower"? A real dyno graph needs to show power at the wheels. And testing for gains from modifications by using different cars is absolutely worthless.

Different car on a different day introduces enough variability into the test that you have no idea how much power resulted from the modification alone.

Stine

I'm sorry but we cannot print the wheel power graph...
For the next dyno i will have it in the graph.

For the second graph, with the stock car, it was just an example.
A lot of stock s2000 dynoed pretty much the same power... 175-180 at the wheel and 230 at the engine...
I'm talking about that dynometer.

The 24 of march i will dyno again my ap1 with 71-69mm throttle body, bored manifold and fuel press regulator, and we can compare seriously the results...

Serg2K

The only >serious< test you can possibly make is to return the car to stock, dyno, then put the stuff back on and dyno again. With a decent fan in front of the car to simulate road conditions.
I know for a fact that you can swap the puffo for an oem airbox within 5 minutes (coz I have one) so there is no excuse not to do AT LEAST that.

Stine

Yeah you are right dude, but right now there is a little problem...

I'm working on S to fit the throttle body and manifold...

You know,, for the puffo, gramigno dynoed like 10 car...
Others like me dynoed their own ap1 before and after puffo...
Minimum 9whp to 13whp gained.
On every car, with every step of NA preparation...

But when i'll go back to dyno, i will do the test with my configuration, and after that, i'll put back on the stock intake airbox and dyno it...