Rebuilden my 13B (Seals changed), and having it ported. From what Ive been here'ing, porting results in a decrease of gas mileage. "But", arent there system's in place for decreasing fuel and air flow.. Will I still be able to achieve that "stoichiametric" mixture?

 

I just a got a streetport done to my motor and I'm reporting 20-22 mpg highway and once I get my wideband wired into my haltech i should be getting like 25mpg. Which is pretty much stock gas mileage.

 

eek I get like 18mpg with evertyhing stock lol

 

It's natural for rotaries to run rich when stock.

 

a streetport (depending on how crazy the port job is) isnt gonna give you much less gas mileage unless your lead footed! just casual driving, you shouldnt really notice a change...

and be careful.... its against forum rules to use a specific persons name as the thread title!

 

I lost ~ 3-5mpg highway, but i have an aux bridge + decent sized primary ports, also my car was abnormally fuel effecient, getting 25-27 highway before the new motor.

 

my name's not Mark, sorry i can't help you.

 

lmao... ...... yeah, besides forum rules, you dont just want to single someone out, because there are plenty of reliable people on this forum that can help you ..

 

theres always a PM option =)

 

Just get a new ECU and tune it right, you will get better mileage than stock FC's and you'll have more power to boot.

 

Sorry about that, should've known better. Never again

 

Awesome, but in addition to upgrading my ecu, wouldnt a good old fassion port and polish gain me abit more performance... Or would it just be a big waste?? Im really tryen my best to spend this sum of cash on this rx wisely!!

 

ok since the thread changed i can help now.

ports won't decrease your mileage, your foot will. what that means is if you drive moderately at a steady pace then mileage should not suffer. i get about 22-23MPG highway with my relatively large streetport if i drive conservatively. this does require tuning with either a suitable piggyback(SAFC will work but not as well as a standalone EMS) or engine management system and a wideband oxygen sensor.

 

Whats a standalone?

 

a fully programably and controlable replacement for the stock ECU, common ones are Haltech, microtech, megasquirt, Wolf 3D.

 

hmm, but you've a t2.. Mine's an N/A.. Wouldnt that affect my engine. I mean, if i were to switch from ecu that was made for the settings of an N/A, and install such an outstanding ecu, could it possibly destroy my engine...??? Also, is it hard to install an ecu. I've examined one, but never had a chance to set one up. IRON MAIDEN iS COoL

 

Hehe take it easy baki Uumm, I don't think it matters which engine you have.. You will be tuning the way it runs through the ECU from what I understand.