RX 4 Speed

Just had a question for you all. We all know that city driving or stop and go driving, as it's otherwise know, is bad overall mileage for a regular piston vehicle. My question is, does it hold true for a rotary? Does the rotary suffer from the same wear and tear from stop n go driving as other cars do???

JONSKI

I would think so. I believe the wear you are talking about is caused by constantly changing engine loads.

Jim Calandrella

I drove mine everyday in the city..........you should be fine.
One thing though.
If you drive it everyday in the city, make sure you get on it a couple of times a day to clean it out. Don't even do it on high boost. I did that for three months, and when I brought it to KD, they were like "What are you doing to your motor?...........It's running real clean."
I told them running it hard on 10psi(the way the car was built to run) once or twice everyday. It made a difference.

adam c

iTrader: (2)

City driving is fine for an FD. Gas mileage will suffer badly. I drive almost all of my miles around town, and some of them are in a "non fuel efficient" manner . I typically get around 10 mpg with that use.

If you drive a lot of miles in this type of traffic, you won't get much air flowing thru your radiator to cool the car. I suggest doing a fan mod:

http://www.scuderiaciriani.com/rx7/fan_mod.html

Sonny

Yeah, I definitely agree with Adam on the fan mod. When I'm cruising on the freeway, I see water temps of 180-185 F. When I'm in the city, they easily shoot up to 210-215 F.

Sonny

novadan67

City miles are harder on any engine - piston, rotary, it does not matter. It is simple math. When you are driving in the city you are typically in gears 1 - 3, therefore your engine turns over many more times per mile than it would if you are in gears 4 and 5. Note that changing gear ratios in your differential will also have the same effect. In additinon, your engine typically runs hotter in stop and go traffic than on the highway, which leads to engine wear. All of this applies to piston and rotary engines.

SVT Squasher

The only thing I would say is if you do a lot of stop and go make sure you have a good reliable cooling system for stop and go tends to bring higher running temps.

RX 4 Speed

thanks guys... all that info really helps. Do I really still need the fan mod even if I only have a dp, catback, and KN filter?

Black Knight RX7 FC3S

iTrader: (7)

haha my 98 jimmy gets 11mpg in the city, and thats driving really carefully.