when someone says, tune it well or the car is well tuned. what does that mean. I don't know if any of the guys had a air fuel meter, or gauges, egt(dont know the knowledge behind this), boost apparently...ect. But how do you read these things and what do you do to properly tune a car. I read on the internet, some how do things work page, but I read that nascar race cars dont use turbos, they are just tuned to the max by computer.god what does this mean.

www.artexmusic.com

97' grey gs/Greddy EVO catback/Greddy header/AEM cai/afx udp/dropped on 2" sprints

Usually this is done on a dynometer. Depends on the mods you have what you can tune.

Gauges are important to know what you are doing to the engine while you are tuning. A voltmeter style A/F gauge is important because you are able to fine tune with an EXACT number, not a flashy LED gauge. EGT is important to make sure the that you are not running too hot in the cumbustion chamber. This can cause problems like detonation if you do get too hot. If you have a turbo, get a boost gauge and fuel pressure gauge. If you have Nitrous, a nitro pressure gauge. Oil pressure gauge is also a good thing with our cars which like to "consume" oil as Satan puts it. Satan even gave me a TSB saying that Mitsu corp believes that oil consumption of up to 1 qt every 1000 miles is considered normal and not covered under warranty.

As far as tuning goes, Cam timing for the best power if you have adjustable cam gears. If you have a S-AFC or something similar you can adjust the fuel curve. MSD ignition can retard timing which is useful to run higher boost with a turbo or a higher nitro shot. For turbo guys, they have to tune the Fuel Pressure Regulator for idle pressure and then as the boost increases, the pressure to the injectors does also, which makes them dump in more fuel.

You can also get a datalogger ( http://www.obd-2.com/ ) and see exactly what the computer sees and you can see what the computer is doing to the ignition timing (retarding) and figure out why (knock/pre-detination)



Contemplating Turbo. . . . .

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that msd thing, my friend has it on his 97 civic dx, he used to run nos but now nothing. he said it gives an extra spark or charge. is this true. i don't want to get gauges that i don't need, i do plan on going turbo, so what kinds of gauges should help. the voltmeter, a/f, and a/f controller, so everytime you guys go tune your cars, you are taking it to get dyno'd. I heard that can run up to 100 bucks

www.artexmusic.com

97' grey gs/Greddy EVO catback/Greddy header/AEM cai/afx udp/dropped on 2" sprints

i've been quoted 120/hr w/ use of a wideband O2 sensor.

Don't have the money for dyno tuning right now.. bleh.

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'95 Eclipse TurboGS (garage deco)
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'97 Talon ESi-T (poor impulse control)
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Factory Service Manuals: http://nawdu.de/files/

Dyno time would be great, but like Dino said, its alot of money. My car has never seen a dyno. I tune with my mind, eyes, ears, butt, and datalogger. If you're careful (and know what you're doing), you can get the engine tuned pretty well. You're car won't be at peak performance, but you can make good power, safely.


Corbin

'95 ESI-T
HRC+FMIC+ETC...

Corbin
'97 GSX dressed like a '95 ESi

Yeah basic things you can tune are ignition timing, fuel delivery. there are many ways to adjust these. S-AFC, Piggyback computer, independant fuel computer, cam gears, fuel pressure regulator, etc.

I'm not sure anybody here has actually gone and spend time on the dyno tuning the car, it's expensive. You can tune yourself with a lot of the tools mentioned above. EGT, A/F Meter, datalogger, and do you own tuning to get a pretty good approximation of what the best conditions for your car would be.

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Oil pressure gauge is also a good thing with our
>cars which like to "consume" oil as Satan puts it. Satan
>even gave me a TSB saying that Mitsu corp believes that oil
>consumption of up to 1 qt every 1000 miles is considered
>normal and not covered under warranty.
>

That's pure genius!
you never gotta get under the car to change the oil

jZa
IHS # fo-six-fo-six

"real men don't ride stick"

so I plan on running a stage II, all the 2gnt have tuned themselves with these controllers and gauges. I know some just slapped that turbo on as is and drove off...probably blew their engine though. Anybody near southern cali, Downey who know how to tune their own cars, maybe give me some instructions, 100 bucks is too much

www.artexmusic.com

97' grey gs/Greddy EVO catback/Greddy header/AEM cai/afx udp/dropped on 2" sprints

My car is being dyno tuned with a wideband o2 sensor in 3 weeks! yippie! What I am having them do is adjust the cam gears, tune my DFI properly(its fuggin rich as hell now), check my MSD settings and tune if needed, and some other shit, but thats the main tuning i'm scheduled for. I have to pay for use of the dyno, and for a wideband 02 sensor since I'll be tuning high boost on race gas, and I have to pay for the guy to tune the DFI and other stuff, so it's getting expensive real quick, so don't jump in if your not ready or you'll drown in added costs...

you said man. thanks

www.artexmusic.com

97' grey gs/Greddy EVO catback/Greddy header/AEM cai/afx udp/dropped on 2" sprints