hornbm

I might be wireing my 6 ports open untill I can get my new exhaust. Basiacally I have no way to acutate them now. Since the ports would be open at idle, and I'm using a weber, do you guys think I would have to change any of my jetting?

mazdaverx713b

iTrader: (91)

are you thinking you may starve the engine for fuel?

wwilliam54

i doubt it

Steve Shulz

Do the air pump mod to get them working, unless you've removed it. Ive heard it beats the the exhaust back pressure anyway. https://www.rx7club.com/showthread.p...d+5th+6th+port
Wire them up if you dont have the means...

hornbm

I could do the air pump mod, but I really dont want the airpump. I may just leave the ports closed untill I get my exhuast. reason being is the 6 ports make power around 4K, and this is a new motor and I shouldn't be going over 4k anyway. It'll keep me from over reving during break in.

mazdaverx713b

iTrader: (91)

if its a newer motor, i would personally stick with the leaner settings you have.

hornbm

yeah thats a pretty good idea, the first 100 miles were from my failed attempt at fuel injection. 100 miles of the thing running richer than all hell. PLugs fouling after 3 minutes. You get the idea.
I'll just keep the ports closed then.

mazdaverx713b

iTrader: (91)

13b's with egi seem to flood rather eaisaly, don't they?

hornbm

yes they do. I work at mazda, and we get flooded rx-8s in every other day. Allways the same problem... "I started it up, moved it 5 feet and shut it off, now it wont start! WHAT HAPPENED?"

Let your ******* cars warm up people! Of course everyone here knows that.