ssstang2

I have a 87 rx-7 just bought for a $100.00 nice shape and my first rotery moter, They guy said the moter is blown, I got it running pretty good with just new plugs but the trailing coil is no good, cand you update to a better coil or would it be better to stay with a stock one? the car has 120,000 and runs great on two plugs.

1987RX7guy

iTrader: (3)

Well I would just get a stock one. get a used one from a junk yard. probably like 25 bux. they are pretty good coils from what I hear. Check the for salse section also there might be someone near you that can help.

SonicRaT

iTrader: (6)

The stock ones are just fine and there's no need to upgrade them. You can buy a used coil for about $20-$25, check out http://www.rotaryresurrection.com.

ssstang2

Does anyone know how much they are new, I will probly hit the junk yard first

ssstang2

one more question It need new pipes do they need the cats on them?

SonicRaT

iTrader: (6)

Not unless that part of michigan has emission requirements (which I doubt) How's living under the bridge? (Hehe, I love making fun of trolls!) Anywho, since you have an 87, removing the cats will remove most of your backpressure, which will cause your auxilery ports not to open. You're going to have to rig them up so that they open and function properly with a free flowing exhaust (there's many threads on this, just search for "5th 6th port airpump" and you should find something)

ssstang2

hey thanks sonic, there are no emissions here, should I put the cats back on or is it better for it to flow?

SonicRaT

iTrader: (6)

Better for it to flow, rotary's like having open and free flowing exhaust. Anywho, I figured there weren't any emissions, I'm from Upper michigan (hence the troll joke), and we don't have any up there either, but I hear detroit enforces some. Sucks for them!

ssstang2

Detroit has not done that yet, but with in the next few years they are, My bro lives there and is crying about it, lol

Audiofight

Get rid of the cats. If you need a coil and can't find one in a local junkyard, let me know. I have an 88 parts car at home. I can yank it off and it is all yours for $20 shipped. I know it worked cause I yanked the engine out of it for my car. Ran like a top before I did that.

1987RX7guy

iTrader: (3)

http://mazdatrix.com/getprice.asp?partnum=18-100B-N326

follow the link to your lubed experience for a new coild.

SonicRaT

iTrader: (6)

You have waaay too much fun with that lube idea 87rx7guy, you're starting to scare me

ssstang2

It looks like I will find a used one, New is a little to much for me thanks audiofight, I will look around here first and see what I can find But thanks for the offer I just might take you up on that

ssstang2

is it hard to mess with the 5th and 6th ports for the exhaust if I leave the cats off?

1987RX7guy

iTrader: (3)

I am straigh yo. Ask my Girl she will tell ya. I just took the lube thing from some one else on the forum

1987RX7guy

iTrader: (3)

well just gut the two pre-cats the main one controls them so leave that one alone. Untill you can get a presilencer from RB.

ssstang2

that sounds like a plan, but what is a presilencer? is it just what it says?

SonicRaT

iTrader: (6)

If the exhaust doesn't have enough back pressure, you just have to rig up a ball valve on the air pump to open them up for you. It's a fairly simple thing to do. (If you do go the presilencer way you don't have to worry as it is designed to still open them, but if you go the custom route you'll have to do as I stated above)

BlackRx7

just wire those ****** open, damn I wish I could find a dela like that here in Texas I'm in need of a dialy driver very bad. But since you got the car so cheap get yourself an MSD 6A it helps in fuel economy and hp, people say its not worth it but the star mazda race cars (small indy type cars with rotary engines) all have them so there must be some benift...

ssstang2

where can I get more info, on this, cause Im about to ask a thousand questions Im sure its going to be in the forum somewhere right?

1987RX7guy

iTrader: (3)

what questions? just ask

BlackRx7

actually use the


bfore you ask you'll get much more info without the bitching