question about rotary turbo charged engines

[waynos 0]

saw an rx7 turbo today and it got me thinking. on conventional engines compression has to be lowered to allow forced induction. i was just wondering how this is achieved on a rotary engine? are they strong enough to take turbos without lowering the compression?

[jonny-5 0]

The compression ratio still has to be lowered as it's the increase in air pressure due to the turbo that causes an increase in charge temperature and that causes pre-ingition of the mixture. The overall strength does play a small part though.

[DanVW 0]

You cant lower the compression ration on a rotary as unlike a piston engine you cant fit bigger gaskets

the RX7 engines where (twin) turbo from the factory so I guess they just made them strong

enough to take it, if you have any specific questions I work with a guys who has an RX with a Big single

turbo (in lovely salmon pink :lol: )

[A-J 0]

 

Read about this one in Redline this month. 1/4 miles in 9.2s and 0-125 in 6.2s :shock: Apparently the can fit bigger turbos because more exhaust gases are produced with rotarys.

[Kevin Bacon 5]

That is one big turbo, but no air filter?

[DanVW 0]

Thats Dragons old track car, it doesnt run an air filter as its only used for 1/4 miles and gets rebuilt at least once a year :shock:

[A-J 0]

It's worth having a look at http://www.dragonperformance.co.uk for some vids of this car, especially the one with the clutch destroying it down the strip.