2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
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Old 09-08-06, 01:24 AM
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I beckon the thaw~

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ICEMARK!!!HELP POrfAvoR

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?
Old 09-08-06, 01:26 AM
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Needs more Displacement.

 
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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.
Old 09-08-06, 01:27 AM
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Smoke moar

 
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eek I get like 18mpg with evertyhing stock lol
Old 09-08-06, 01:28 AM
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Needs more Displacement.

 
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It's natural for rotaries to run rich when stock.
Old 09-08-06, 01:30 AM
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IIMMM BBAAACCKKK!!

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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!
Old 09-08-06, 01:58 AM
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Rotary Enthusiast

 
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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.
Old 09-08-06, 02:02 AM
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Sharp Claws

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my name's not Mark, sorry i can't help you.
Old 09-08-06, 02:17 AM
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IIMMM BBAAACCKKK!!

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Originally Posted by Karack
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 ..
Old 09-08-06, 04:00 AM
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zZzZzZzZzZz..............

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theres always a PM option =)
Old 09-08-06, 05:41 AM
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'89 GTUs

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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.
Old 09-09-06, 12:53 AM
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I beckon the thaw~

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Sorry about that, should've known better. Never again
Old 09-09-06, 01:00 AM
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I beckon the thaw~

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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!!
Old 09-09-06, 02:06 AM
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Sharp Claws

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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.
Old 09-09-06, 11:22 PM
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I beckon the thaw~

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Whats a standalone?
Old 09-09-06, 11:31 PM
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I live in the lounge...

 
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a fully programably and controlable replacement for the stock ECU, common ones are Haltech, microtech, megasquirt, Wolf 3D.
Old 09-10-06, 09:41 PM
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I beckon the thaw~

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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
Old 09-12-06, 02:51 AM
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Balance is key..

 
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Originally Posted by gbaki
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.
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