NitrousJunkie

So I had a 86 N/A before my 351w FB but I can't lie, I loved that 86 and want to give rotaries another shot but wanted to do my research first, I just have a couple questions and if you have the time to answer them I would greatly appreciate it.

First, I was told the main reason Rotaries blow Apex Seals is because of detonation, is there any truth to this? I have E-85 very accessible in my area and could run that, would running E-85 get rid of this problem?

I believe this one might be in FAQ's but is it a good idea to premix with every fillup?

I'm going to want to go 13B Turbo, is there a specific year of the blocks I should look for? I heard the pre 86's were better, also does mileage matter if compression is good?

That's about it, I'm going to be doing a lot of research coming up before I decide on a car but thanks ahead of time.

EricRyan

iTrader: (4)

Oh boy. Two main things kill rotaries: 1) Being overheated, 2) Running too lean (especially on a turbo car).

Premixing is only for cars with disabled metering pumps. If you premix a factory, unmolested RX-7, you will essentially be OVER-oiling it on top of the oil that's being pumped throughout the motor and making huge clouds of smoke I'm sure.

There was no turbo 13B before 1986. The 86-88 Turbo made ~180HP, and the 89-91 Turbo II made ~200HP, mostly from the addition of the twin-scroll turbo design.

Mileage really doesn't matter, chances are the motor has been pulled before in ANY car, so it's your gamble. Having documentation from the previous owner is almost a must. You should also find a car that wasn't up north or you will spend most of your days killing the 20 year's worth of rust from road salts.

EricRyan

iTrader: (4)

On an extra note, I have heard that people who have motors on premix don't suffer carbon buildup and generally last longer.

jamespond24

iTrader: (13)

Run ALS or RA seals with premix you'll love rotary once again. Good luck!

EricRyan

iTrader: (4)

Booooooo