kngfmsta

I was told from a friend that since we have rotary engines the rotors spin faster than pistons but, it causes more wear and tear which then results in less longevity. Therefore if we modified our cars, increasing hp would increase damage done to our motors. Is this true, or is he just a gay jealous back stabber?

deam

hes just jelous =)

JeRKy 8 Owner

Is this the common sense thread?

deam

i should be able to put 800 hp in the Renesis, without it blowing up.............maybe even a 1000 hp with no wear

Blue87Sport

Pistons don't spin, they "boing".

Seriously, remember that the rotor spin at 1/3 the rate of the eccentric shaft. So at 9000 RPMs, the rotors are spinning at a lazy 3000 RPMs.

Non-turbo rotary engines are extremely reliable. Your friend apparently doesn't know much about rotary engines. The only point he makes that is remotely valid is that forced induction, like turbos, do put more stress on the engine components, especially seals. Poorly tuned turbo setup are subject to detonation which can break the apex seals in the engine.

If you want to intelligently discuss this with him, study up on the rotary engine (http://auto.howstuffworks.com/rotary-engine.htm), then search this forum for the terms "longevity" or "reliability" and "detonation". Doing this research will not only allow you to shut your friend up, it will make you a better person.

ddub

This is why so many people are scared of the rotary and only Mazda will put them into production cars. Misinformation... tell your friend to shut up.

staticlag

tare n.

1. The weight of a container or wrapper that is deducted from the gross weight to obtain net weight.
2. A deduction from gross weight made to allow for the weight of a container.
3. Chemistry. A counterbalance, especially an empty vessel used to counterbalance the weight of a similar container.

MazdaManiac

iTrader: (3)

^^ OK. That made me laugh.
I love grammar *****.

crossbow

Just pop your hood and ask him to point out your engine. I bet he points to the alternator.

rkostolni

More wear and tear will happen whenever you increase hp, especially via FI whether its a piston motor or a rotary motor. But not necessarily an amount that will significantly shorten the life of the motor. I've always heard that by properly adding FI to a car you give up about 10% of its life expectancy. An NA rotary should easily go 200k miles, if I get 180k out of it, it would've been worth it. Hell if I get 120k out of it, it'll be worth it.

QBallz

I though the rotors only spun 1 time for ever 3 revs of the Eccentric shaft. So that means at 9000rpm your only really spinning 3000rpm....

epitrochoid

RPM = Ruins Piston Motors

zoom44

the root is the same as for tarif then? it would be the amount of money deducted from the gross profit like the wrapper/weight in def. 1 and 2?

epitrochoid

actually the word tariff comes from an old city in the middle east that was a major stop for traders running routes between europe and the far east. the city's leaders got smart and started charging a fee based on what products the traders brought through the town.

zoom44

cool thanks the arabic ta'rif makes sense.
tare actually has an arabic root as well -from Arabic tarah, lit. "thing deducted or rejected," from taraha "to reject."