Dyno component testing and evaluation

This Dyno run is a stock (restricted as the Dealer receives it) 2009 SR50 with the Piaggio engine.

It would not rev over 8000 rpm while producing power and would not exceed 45 mph as tested. The speedometer has no influence in the speed restriction as the front tire does not turn on the Dyno.

Here is the single 3.80 hp graph with rpm. Most of the hp is in the upper 7k range. It does run up to 9k but all the power has dropped off.

The gain that can be achieved by loading v. 2.8.0 (Dealer Development Mode) into the DiTech ECU.

Increase in acceleration, Restricted ECU (blue) vs Derestricted ECU (red)

And here's what you get when you remove the variator spacer.... another 7 mph. 
Difference in HP is probably just difference in conditions.

A comparison of Restricted to ECU derestriction and spacer de-restriction

Rollers changed from stock 5.3gr to 5.1gr LeoVince. Same rollers that ship with the LeoVince ZX-R.
No horse power change but a quicker rise in RPM's.

First pipe tested. LeoVince ZX-R. 

This pipe in my opinion was as quiet as stock. Produced .84 more horse power, 6 more MPH and 940 more RPM

Tecnigas RSII VS LeoVince ZX-R

The RSII ran very poor from idle to mid throttle and is clearly not a 49cc pipe. Loss of HP, RPM and speed over the ZX-R. A larger reed block and more fuel may help but I will test again at 70cc.... I will bet it does much better.

ZX-R, RSII and Stock together

I put the ZX-R back on and added the HGT adjustable Regulator....

We have felt what it does, now we can see what it does. Very obvious that it smooth's out the power and lets the pipe work much better.

A comparrison of stock, derestricted, ZX-R pipe and HGT Regulator.

What an improvement !

LeoVince ZX-R vs the LeoVince GP... this may make GP owners happy but it does fall off quicker and lost some top end. Although peak HP is just .1HP lower it is .2HP lower in the mid range and .4HP lower on the very top end. You will notice from 35mph to 45mph they are near identical.

I did test the GP with the little baffle out and after 3 runs there was no proof it helps or hurts other then it is louder.

This is the ZX-R with the silencer removed. If the ZX-R produces less HP then the ZX, it's not because of the longer quieter silencer as it may have even lost a little with it removed.

It is definetely ear popping....

This is a set of runs I did to help determining the best roller / scooter speed to start the graphs at. Under 10 mph the transmission shouldn't have much if any transition going on. A standing start is hard to graph consistently but 5 and 10 mph are very repeatable. This will show you the higher you start (above 10mph) the lower your peak HP will be.

This is a graph of the corresponding engine speeds.

This is a back to back run with the derestricted OEM ECU and then with the 70cc Malossi module added. It idles good but the part throttle is terrible. If you were racing in a 49cc class this could be helpful, but then again, the HGT Regulator took us from 5.16HP to 5.58HP with no part throttle issues.

Just as I felt with the butt dyno, the 3 degree advance key added bottom end... not earth shattering but for $8.49 it is the highest HP gain item per dollar. Since 2t's need to retard their timing as rpm's increase, you can see where the HP starts dropping off quicker at the top. On the street you may not hit the point where it starts to drop off.

Here's the LeoVince Shoot-out at 49cc.

All pipes were tested back to back at 60F. A little cooler then most my other tests.

All pipes were tested with supplied 4.8gr rollers from LeoVince

Each pipe was fully warmed up and ran 3 times. The top run was graphed.

The order of the pictures is the order they were tested in.

This is what all 9 runs look like.

Here I have added RPM to the graph. The RPM's are holding just above 8000 as the variator transitions and peak HP is just under 8200.

This is the 70cc kit (no adjustments) compared to the 49cc with the ZX-R pipe and tuned. The transmission was all over the place, up and down.

This is where we have come from stock 3.80 HP 49cc to 70cc. This is after adjusting out the clutch and rollers..... much smoother. The engine will pull 6.50's consistently and has pulled a 6.62 with the ZX pipe but the ZX-R is holding a higher HP throughout the run where the ZX is peaking and falling off faster.

Quite a change from the show room floor Horse Power.

Here's the 4 pipe shoot-out at 70cc between the LeoVince ZX, ZX-R, GP and Tecnigas RSII. When I saw the numbers from the GP I about fell over, then after plotting with the rest of the pipes I could see it fell off fast. The RPM's were also much higher so I am wondering what it will do if I fatten up the rollers and hold the RPM's lower for it.

Here's the difference in case matching and porting the Morini with a Malossi BBK vs bolt on.
1 HP increase and .63 foot pounds of torque. The fall off occurs more at higher rpm's.
Top speed and 0-60 significantly different.