turbo kits, tuning and weather conditions

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blackdahlia6

New Member
i was talking to my dad about my plans with my b18b and boost when he brought up tuning and north carolinas insane weather in the summer (extremely high humidity and heat fluctuations)

he was telling me if i turboed my car id have to wire up an on the spot basically "mini comp" to do some tuning every couple of days

is this true that the humidity and such can effect my tuning?

i figured my car would make less power when it was blistering hot out.
but mess up the tuning??? shed some truth on me people
 

blackdahlia6

New Member
after some searching i concluded the best way to keep the car running well in hot to freezing cold weather is the monitor the egt's, and adjust my AFR lean or rich to accomodate for high or low egt's? someone help me out

i want to have a nice tune with my turbo set up, nothing insane
i figured if u dont have a hardcore tune like for 13:1 n/a monster that the ecu could accomodate for weather changes and altitude? so 1 solid tune for a turbo set up would work year round?
 

YBLEGAL

Regular Member w/ Cheese
If your conservative in the tune, you can make the power you want reliably in all conditions. When your pushing the limits is when you have to really keep an eye on things like that. Most people then have 2 different ECU chips (or more) that can be swapped in depending on the time of year/elevation currently/humidity. Each chip with a different tune. Also, you have to get your tunes for the conditions you plan for while those conditions are actually going on. IE, you can't tune at sealevel for racing on a track a mile up. Density is different. You get me?
 

blackdahlia6

New Member
If your conservative in the tune, you can make the power you want reliably in all conditions. When your pushing the limits is when you have to really keep an eye on things like that. Most people then have 2 different ECU chips (or more) that can be swapped in depending on the time of year/elevation currently/humidity. Each chip with a different tune. Also, you have to get your tunes for the conditions you plan for while those conditions are actually going on. IE, you can't tune at sealevel for racing on a track a mile up. Density is different. You get me?

so your saying if its just a basic tune to keep things working right that it will work all year round? lets say i tuned my car in 50 degree weather and its running nice, would that same tune still work well in 100 degree weather with intense humidity? will the heat effect how i should have my AFR and vice versa?
 

Briansol

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Admin
VIP
tune on the hottest worst day of the year.
the rest of the year, the car will run a little rich, but it will be safe.
 

Briansol

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VIP
yup. hondas have baro sensors on them that auto adjust for 'fine tuning'.

cold = rich. rich = safe.

if you tune in the 30s, you'll run lean in the 80s, and kaaaabooom :)
 

Briansol

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i believe so.

its in the actual ecu itself.

obd2-baro1.jpg


its the big black thing in the back standing up. pop your case off and see if you have one.
 

YBLEGAL

Regular Member w/ Cheese
My JDM P30 (OBD1) does not have a barometer. USDM P28's do.

A conservative tune would be on the rich side and a little less timing advance. That would yield a little less power to be made per amount of fuel, but safer so you don't enter into detonation. B's method works great, tune for the worst, during the worst. lol
 
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