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real power for your model airplane, PPG, Ull and many more applications


PSA Mufflers - single:

Pitts style muffler
Art.No.: for Engine: A B C D weight(g)
 K-10310  ZDZ 40RV 62  114  58 40  190
 K-10312  ZDZ 56 RV-J  NEW   64  132  69 50   240
 K-10314  ZDZ 60RV  85 142  78  50  265
 K-10316  ZDZ 80RV  85  142  72  50  265
 K 10318  ZDZ 80RV-J, ZDZ 90RV-J  85  177  89  60  365

PSA Mufflers for inline engine:

Pitts style muffler-inline engine

Art.No.: For engine A B C D weight(g)
K-10321 ZDZ 80R2 70  143  83  60  400
K-10323 ZDZ 100R2 69  143  83  60  400
K-10325 ZDZ 120R2  85  170  111  80  635
K-10328 ZDZ 160R2  83  170  108  80  635
K-10329 ZDZ 210R2-J  91  195  124  80  760

The PSA silencers are made also in RS version. It brings cca 200-400RPM, but significantly increases noise.

Therefore we can recommend this version only where no noise limit or regulations are set.

Marking example:  K 10318-RS, Exhaust PSA-ZDZ 80 RV-J-RS


27.11.2019: New distributors in Finland and United Arab Emirates

More details on our facebook or in contacts

28.5.2019: ZDZ 500B4-JSR added to our website 

The biggest engine of ZDZ line now optionally equipped by belt reduction gear. Check this beast in QUAD section. 

13.2.2019: New prices set for engines in eshop.

The most of bigger engines are now cheaper. Go and check, register your engine in our form (see in the center of page) and get even lower price for your next purchase.  

13.1.2017: Second service and support center in Czech Republic/ druhé středisko  servisu a podpory pro ČR

RC modely-PH
Václavské nám. 254
Kutná Hora
284 01
tel 777152293 email:


26.09.2015: New videos added 


07.02.2015: Pages update 

Dear Friends,
since yesterday 7PM till today 11Am, we have problems with email servers forwarding because of changing and adding domain names into our systems. If you sent anything within that period and received returning message, please forward your message once again.
Thank you and sorry for inconveniece.

04.02.2015: Pages update 

New distributor for BENELUX and UAE, see contacts-distributors for details. 

01.02.2015: Pages update 

New items added to the shop. especially spare parts were significantly updated and filled. And more to come........

31.01.2015: Pages update 

ZDZ 90RV-J,  ZDZ 112B2RV-Jch, ZDZ 180B2RV-Jch, ZDZ 250B2RV-J and ZDZ 224B4-J pages  update with new animation and downloadable 3D model where you can measure anything from installation dimms.

Also new items were added into spare parts section in eshop. 

08.01.2015: E-shop filled with all engines. 

Since today for those countries where we do not have oficiaal dirstributor our customers can order engines directly from our eshop. Soon we will add parts and accessories to it as well. 

20.12.2014: ZDZ 112B2RV-J Champion

Already well known for its smooth run and awesome power to weight ratio two stroke 112ccm opposed twincylinder model gas engine with procesor controlled ignition. Now fully CNC made crankcase and backplate out of 7075 aluminium alloy so very clean design bringing better quality as well. Weight increased compared to former 112B2RV-J is only 50 grams. 

ZDZ 112B2RV-J Champion

17.12.2014: Technical support in France

We have agreed with one of our most experienced pilots and friend Nicolas Gastaldi, that he will kindly support users in France. In case you have a problem with setup or tuning the engine or need advice, please contact Nico on email nicogasta@hotmail.com. Of course you can contact us directly as well, but we speak only english unfortunatelly. Thank you Nico for your help and very good representation of ZDZ engines at all. 

ZDZ 180B2RV-J  Champion finally available.

This the most powerfull engine in its class now comes with much nicer design with fully CNC machined crankcase and backplate and some other modifications like forged steel con rods to bring super long lasting power and durability.