Racing Cylinder D.R. 177 cc by SIP
for Vespa P80X/PX80 E/Lusso/PX100E
- cast iron
- 7 ports
- Ø 63,0mm
- stroke 57mm
- with cylinder head
- cylinder base turned for PX80
TUNING SPORT - high-performance
For race use only. Not admitted in the area of the German StVZO!
Product description
The big brother of the 135er is a cylinder with power reserves for problem free daily usage. Other than the small DR, the 177 definitely gets performance in higher rev ranges due to it's two auxiliary exhaust ports. This makes it a dependable companion through it's relative low compression. When the 3rd cylinder transfer port is blown (gasket), the DR can be also be driven on engines with 2 transfer ports. It also gets a respectable performance increase. With using the POLINI head and adapting the cylinder transfer port to POLINI 177 dimensions, the 177 gets more power, but won't be completely indestructible.
The OLYMPIA 177 is identical to the DR 177er, and is a very good alternative if the DR if not available.
Conclusion: a top all round cylinder with great long distance qualities.
Cast Iron/ 63mm Bore/ 7 Transfers/ 177.68ccm
Cast iron cylinder, 57mm stroke, 7 transfers, pistons with 2 piston rings, exhaust with additional auxilliary outlets, original DR cylinder head and gasket set included in delivery. The crankcase will not need modification in the first step, jets and ignition should be checked and optimized. Models with elestart will need modification of lower cooling fins.
SIP-TIPP: Adjust jets and replace spark plugs(W4AC), both an absolute must, ignition setting circa 19°, Harmonizes well with 24/24 Si, Italian racing exhausts/SIP ROAD, longer transmission and racing crankshaft are recommended. 28er carb and SIP / JL Racing exhausts are the DR's innermost desire!
SIP-Kunde Massimo M., Schweiz:
“Very good kit for simple tuning. Good torque. With 24/24 SI and standard gearing about 125 km/h possible.”
Cylinder Kit modified for PX80: We've modified this cylinder kit to fit the smaller casing diameter of the 80er. The original 80ccm crankshaft with 48mm stroke must be replaced with a 125/150ccm shaft from the larger models with 57mm stroke. We also recommend a longer transmission (POLINI/MALOSSI) or a clutch cog with 21-22 teeth.
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Notepad
Get inspired. This product is included in the following public notepads:Notepad name | User | Change date | Article | Note | |
---|---|---|---|---|---|
Mini | Lord-Syd | June 15, 2022 | 6 | View notepad | |
Engine Overhaul | MaxG | March 21, 2022 | 5 | View notepad | |
PX Börner Motor | RaymondB | February 14, 2022 | 2 | View notepad | |
M.M. | MichaelM2610 | June 11, 2021 | 4 | View notepad | |
P80X | ThomasChristianF | October 26, 2021 | 11 | View notepad | |
PX80 | GerhardJ | April 20, 2021 | 3 | View notepad | |
Vespa/LML Motor Revision | EPSG | February 17, 2021 | 36 | View notepad | |
Vespa px Projekt | FelixF6833 | June 4, 2021 | 6 | View notepad | |
Motor | AndreW9478 | June 18, 2021 | 87 | View notepad |
View notepad
Downloads
File name | File type | Description | File size | |
---|---|---|---|---|
Dyno_DR177 | Dyno DR177 | 0,22 MB | Download | |
DynojetDR177ccm | Dynojet DR177ccm | 0,30 MB | Download | |
DR177cc_Datasheet | DR177cc_Datasheet.pdf | 0,22 MB | Download | |
BriefkopienSIP | Briefkopiensammlung SIP Team | 5,51 MB | Download | |
Technik_Zylinder | Technik Zylinder Vespa | 46,55 MB | Download | |
Technik_Zylinderkopf | Technik Zylinderkopf | 0,38 MB | Download | |
DR177ccm_Datenblatt | DR177ccm_Datenblatt.pdf | 0,22 MB | Download | |
Tuningübersicht Largeframe | Tuningübersicht Largeframe | 0,20 MB | Download | |
Cylinder head technology | Cylinder head technology | 1,60 MB | Download | |
Cylinder technology | Cylinder technology | 6,14 MB | Download | |
Tuning summary largeframe | Tuning summary largeframe | 1,70 MB | Download |