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Is the ECU reflash partially responsible for the loss of mileage, or simply that it's based on an outdated test methodology?
If the ECU reflash contributed, shouldn't CZ's upgrade give that mileage back?
It seems to me that it will help because at the higher RPMs you will be using slightly less fuel, and may need to be at those RPMs sliglty less time (because you get through them and on to the next gear sooner).
Well, after putting some miles on the car yesterday/today with the stage1, if you drive as you usually do, it's prolly gonna be the same. If you do high speed highway cruising, it is marginally better.
But to be honest, I am enjoying that extra womph at 5500RPM too much and have been a bit heavy footed recently :D The exhaust note when using WOT is also more agressive and harsher.
Lets see, I'll get the calculator out. $500 dollars will buy 285.7 gallons of gas at a rate of 1.75 a gallon. At 15 miles per gallon, thats 4285 miles. At 18 miles per gallon, you gain 857 miles per 500 dollars of gas for a total of 5142.9 miles. If you actually receive a gain of 3 miles per gallon, it would take approx 26,000 miles for the CZ PB investment to make a profit. You buy this mod for the extra power, not extra MPG. I read somewhere on this forum that a member had stopped worrying about MPG and suddenly he enjoyed his car more. I get about 20 MPG on average, but I don't worry about it, and I am happy. But I am looking foreward to having my stage 1!! Not trying to be mean, just my 2 cents.
Winning Blue MT, Moon spoiler, Sirius Radio, Borla Exhaust
My NEW addition: 12a Rotary & Nitrous Powered Triumph Spitfire. Little Beast!
RX-8 LP: MYRX8U
If you drive it as you normally do, you may see a slight increase in mileage.. I would say about 1 to 2 mpg.. I *TRIED* very hard to go 1 tank driving "normally" and had gotten good results 1/2 a tank in. However, I was too tempted to get it into the > 5000 RPM range. Maybe others out there have more willpower than me.... Just to set the record straight, I cruise at around 3k..
Originally posted by racerdave So guy... any other St. 1 impressions after 1500?
What's the verdict, dude?
My impressions are that I love this mod.. I have the Borla exhaust and the RE Intake.. I have yet to do a dyno.. But..
My initial thoughts are that Stage 1 + Borla with the stock exhaust gets me an extra .5 to 1 mpg.. and sounds better for my tastes.
I like the RE intake but I don't feel much more of a gain with it in this combination. A dyno might prove me wrong.
Stage I is most fun in 2nd gear I think... 1st is too short now.. 3rd is alright.. and though it is a little quicker in 4th and 5th it isnt as noticeable... You're beyond legal speeds in the > 5K range in 4th and 5th anyway..
The only other problem is..... I still want more...
Right -- if you get addicted to the 5500 rpm "rush" your mileage will get even worse. Back off and the needle moves slower. Not verifiable, but the damn big gas gauge is actually a pretty good indicator of how your mpg is doing. (My suggestion to Mazda: put in a smaller gas gauge that stays on "full" for the first 30 miles like most of them do, and we'll all be less obsessed with our lousy mpg.)
Nordic Green / Black Chap. GT 6MT, CZ1, CZ4, Borla, z327 ground wire
Originally posted by Xavier296 I read somewhere on this forum that a member had stopped worrying about MPG and suddenly he enjoyed his car more. I get about 20 MPG on average, but I don't worry about it, and I am happy. But I am looking foreward to having my stage 1!! Not trying to be mean, just my 2 cents.
I agree fully with the statement, my gas is free (thanks to work) anyways. I'm simply curious about improvement, whether it's relevant to me or not.
Originally posted by Xavier296 I read somewhere on this forum that a member had stopped worrying about MPG and suddenly he enjoyed his car more. I get about 20 MPG on average, but I don't worry about it, and I am happy.