Alex builds a Quattrini 252ccm Vespa Motor 2 - Quattrini M244 Kingwelle - the super tourer
Quattrini M244 king shaft - the super tourer in the first expansion stage "Plug & Play" M244_1
This is part 2 of this Quattrini M244 - Series. In this first construction stage, M244_1, we have the M244 without any further changes, only with spacers on the cylinder head and the cylinder base our engine eingerichtet.
We have entered the resulting control angles in the list for the test plan.
In terms of design, this setup is in the middle of the range of expansion stages.
TEST POLINI BOX
First we send the all-purpose weapon from Polini into the race.
Test bench diagram POLINI BOX exhaust on Quattrini as PDF: M244_1_POLINI
The result is quite clear. Already at 4000rpm there are 15 HP and 26Nm on the rear wheel.
The maximum values are 30.5PS at 6500rpm and 34.4Nm at 5900rpm.
Even at 9500rpm there are still 22PS on the rear wheel. This constellation already calls for a longer primary translation.
TEST FALKR ELRON
The next test subject comes from FalkR and listen to the name Elron's.
Test bench diagram FALKR ELRON exhaust on Quattrini as PDF: M244_1_ELRON
With regard to the maximum values, the Elron ranks as real resonance exhaust already above the Polini Box. But the tide is turning only beyond the 6500rpm in favor of the Elron. In the range before 6500 rpm, the Polini Box has the lead here. After passing the 6500rpm mark, the Elron gains significantly and is above the Polini Box up to the end of revs beyond the 10500rpm.
TEST JL PERFORMANCE
Another old friend is that JL performance.
Test bench diagram JL-PERFORMANCE exhaust on Quattrini as PDF: M244_1_JL_LH
The somewhat outdated concept of the JL still delivers reliable values today. The JL does not cope with the first stage of the engine quite as well as the Elron. With 31PS at 8200rpm, that's something like suffering at a high level. The rather gentle entry and a good performance of 16PS at 4000rpm make the JL a very drivable exhaust with a good start in Reso optics.
TEST NEWLINE SCOOTER & SERVICE
The Newline exhaust from Scooter & Service is with us in Scooter Center Shop .
Test bench diagram NEWLINE exhaust on Quattrini as PDF: M244_1_NEW_LINE
The new line from Scooters and Service from Hamburg already delivers its maximum power of 6300PS at 32rpm. Even if the playing field doesn't quite fit the Newline, which would like to see a little more steering angle, the manual work from Hamburg delivers a remarkable 6000Nm already at 36rpm. The torque beast in this expansion stage
TEST POSCH PERFORMANCE NESSIE
As the first representative of the "Performance" department, we let Nessie from Posch Performance work on the M244.
Test bench diagram NESSIE - POSCH exhaust on Quattrini as PDF: M244_1_POSCH_NESSIE
Until just before 6500rpm, the world is pretty fine for the Nessie. Then the curve takes a course that suggests that the Nessie would like to see significantly more outlet angles.
Nevertheless, the Nessie with 34.8Nm at approx. 6000 rpm can be counted among the clearly high-torque systems.
TEST POSCH PERFORMANCE RACING RESI
Of course we also tested the Racing Resi from Posch Performance.
Test bench diagram RACING RESI- POSCH exhaust on Quattrini as PDF: M244_1_POSCH_RAC_RESI
The Racing Resi from the same manufacturer runs very similar to the Nessie and also requires more ventilation over longer control angles. With almost 35Nm at 6100rpm, the Resi is also well ahead in the league of absolute torque animals.
TEST LAKERS KINGWAVE
The Lakers as a thoroughbred racing exhaust, stands well in the feed despite the high performance and engine speeds to be expected with the low control angles.
Test bench diagram KINGWELLE LAKERS exhaust on Quattrini as PDF: M244_1_LAKERS
With almost 36PS at 7700rpm, it is the front runner in terms of performance in this expansion stage.
In the later expansion stages, when higher control angles and a wider outlet come into play, this exhaust can probably live out much better.
Overview test run 1 Quattrini M244 exhaust systems
Quattrini cylinder M244 in the first construction stage, M244_1 "Plug & Play" without further changes only with spacers on the cylinder head and on the cylinder base on the Malossi engine and Kingshaft crankshaft adapted.
Be curious to see how the second expansion stage will continue ...
