mods without a tune???
Jun 23, 2007, 12:13 PM
#16
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No tune needed for those mods. You will get noticable power gain without it and you car will run fine.
Of course a tune on just a stock evo is a big difference. So tuning is always good.
Bottom line is you don't need one for the car to run fine!
Of course a tune on just a stock evo is a big difference. So tuning is always good.
Bottom line is you don't need one for the car to run fine!
Jun 23, 2007, 12:56 PM
#17
I haven't yet tweaked the car for best part throttle efficiency. When I do, it will deliver 400+ miles per tank. There is no conflict between tuning for best part throttle efficiency and max power. Setting closed/open loop thresholds properly is part of the key.
Aside from given big power potential, a large turbo keeps the engine from unnecessarily generating boost in part throttle operation.
The present parts selection, cam timing, etc., I'm using all improve VE in the rpm range where 75-80mph falls in 5th.
And lastly, driving like an adult contributes considerably.
Aside from given big power potential, a large turbo keeps the engine from unnecessarily generating boost in part throttle operation.
The present parts selection, cam timing, etc., I'm using all improve VE in the rpm range where 75-80mph falls in 5th.
And lastly, driving like an adult contributes considerably.
Jun 23, 2007, 01:44 PM
#18
well i didn't know gas mileage was going to come up but thats cool, mine is real bad i don't even think im going to get over 200 a tank and i drive like my grandma. ANYWAY, the reason i didn't want a tune is because when i bought my evo new a few days ago the owner of the dealership said if i get a reflash or tune they aren't going to cover my warranty at all, well the one that came with the car. so i was trying to avoid that but fill me in.
Jun 23, 2007, 03:17 PM
#19
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I don't get how you guys are increasing gas mileage with a tune? A tune alters the fuel/timing in open loop fuel delivery. Everything else is closed loop (which tries to hit 14.7 as much as possible.)
Jun 23, 2007, 08:15 PM
#23
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well i didn't know gas mileage was going to come up but thats cool, mine is real bad i don't even think im going to get over 200 a tank and i drive like my grandma. ANYWAY, the reason i didn't want a tune is because when i bought my evo new a few days ago the owner of the dealership said if i get a reflash or tune they aren't going to cover my warranty at all, well the one that came with the car. so i was trying to avoid that but fill me in.
That leaves you in two scenarios:
1) Car has no aftermarket parts
Just reflash back to stock if want warranty work.
2) Car HAS parts requiring tune
The parts would have already voided your warranty so it doesnt matter what tune you are running.
I would just mod away, it seems as though Mitsu is trying to find a way to weasel there way out of every warranty claim concerning the evo, even stock one's. Down here in backwood's AL I went to the dealer to fix my clearcoat on the wing, they did, it was the first time they had done this at that dealership, 3 weeks later i sent my buddy up there they refused to do it. They also tried to tell me that it was my fault my wing had bubbled because I waxed it. vroom vroom
They also refused my Brembo's saying that the tire polish crap messed up the clearcoat on my caliper's.... I wish I had time and money to refute this...
Last edited by skywestseth; Jun 23, 2007 at 08:20 PM.
Jun 23, 2007, 08:51 PM
#24
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But also not saying to get a tune after every part, it would be silly to get a tune after a TBE, then again after intake+hard pipes...
I have my TBE now, I want meth + cams simultaneously then tune after that...
I would say that have a tune in the works somewhere in your mod plan is the key phrase...
Jun 23, 2007, 09:21 PM
#25
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I ran with an exhaust without a tune for awhile had no problems other than my car would boost hard at full boost. After my tune it didnt boost as hard.
Jun 23, 2007, 09:51 PM
#27
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you can drive around perfectly fine with those mods...i ran tbe.megan mani,greddy ic with piping,mbc without a tune and still drove fine and ran 12s all day..a tune will help out a lot but you can drive it around fine until you get the money/time for a tune...
Jun 24, 2007, 05:18 AM
#30
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an exhaust upgrade will allow you to move more air through the engine, so you'll start hitting higher load columns that have more fuel and less timing, so it's quite possible that you will see worse performance at low RPM and worse fuel economy.
and this is precisely why you should be tuned after you install new mods.
and this is precisely why you should be tuned after you install new mods.