Hondata

Here's my setup

Exterior:
Buddy Club 3 Full Body Kit
Replica Mugen CF Hood
Replica Mugen CF Wing
Seibon CF Eyelids
3D Tail Lights
15% Window Tint


Interior:
Autometer Boost Gauge
Autometer Oil Pressure Gauge
Autometer A/F Gauge
Autometer Triple Guage Pod
Alpine 9853 Head Unit
Rockford Fosgate HE 12" Subwoofers
KAC-7252 Kenwood Subamp
Red LED Interior Under Seat Glow


Motor:
K20A3 Tuned by TC Performance
Jackson Racing Super Charger
Jackson Racing 4" 8psi Pulley
RC Engineering 440cc Fuel Injectors
Hondata KPro ECU Management
Hondata Intake Manifold Gasket
Invidia Axle-Back Exhaust
DC Sports RSX Race Header
Ingalls Engine Torque Dampener
Energy Suspension Motor Mount Inserts


Transmission:
Exedy Stage 1 Clutch
ACT Lightweight Flywheel


Suspension:
Eibach Pro Kit 1" drop
Progress Group Rear Tie Bar
Progress Group Rear Sway Bar
Neuspeed Rear Center Bar
Neuspeed Front Strut Tower Bar
No Name Rear Lower Strut Bar
OBX Camber Kit

Wheels/Tires:
Summer
Urban Racing Type 10's 17x7 on Nitto Neo Gen 205/40/17
ICW Racing 12 Spoke 17x7 on Ventus K104 Sport 205/40/17

Winter
Stock 15" OEM Wheels

Now for my question. Does Kpro adjust its self to run say in different cities/ altitudes? Or does it have to be retuned everywhere?

vtec racer wrote:Now for my question. Does Kpro adjust its self to run say in different cities/ altitudes? Or does it have to be retuned everywhere?

The honda ecu, and hence kpro, uses the manifold absolute pressure sensor to determine engine load. In higher altitudes, the engine will see different pressure readings at wide open throttle than in lower altitudes. A short answer to your question is YES -- the kpro adjusts itself to different altitudes.

NOW, here's the part you need to be aware of. Just because kpro is aware of the difference in manifold absolute pressure, this does not mean that you're tune is ideal for that altitude change. Generally, when you do a wide open throttle tune for fuel, you modify all of the columns for the various manifold absolute pressure readings that are in the wide open throttle range (8, 9, and 10 generally) by the same percentages (and depending on the tuner, the part throttle ones as well). Generally speaking, this keeps your fuel curves parallel across the different potential manifold absolute pressure possibilities. In my area, I generally land in column 9, yet I adjusted my fuel in all N/A columns by the same amount based on what my fuel needs (percentage wise from the base map) were when I was at wide open throtlle in column 9. If I were to travel some place, where due to altitude, I landed in column 8 instead, I would in theory be fine because I adjusted column 8 (and every other column) by the same amount.

If you move to a new location, it's always good to double check your tune incase your fuel curves in your base map were not as proportional or accurate as you had hoped before tuning.

If you get a tune, make sure your tuner edited all columns for WOT and kept the fuel curves parallel or you may have problems going between altitudes. Generally this goes without saying, but I've found that doublechecking what you've got never hurts.

My car was tuned in Denver. Would I be ok if say I moved to Texas or Georgia? What I'm getting at is is there problems running a tune from Denver at sea level. And would I not want to drive it until I get a tune for the area?

Also would changing my intake from an AEM SRI 2 1/2 pipe to a V2 mess up the tune I have?

vtec racer wrote:My car was tuned in Denver. Would I be ok if say I moved to Texas or Georgia? What I'm getting at is is there problems running a tune from Denver at sea level. And would I not want to drive it until I get a tune for the area?

Also would changing my intake from an AEM SRI 2 1/2 pipe to a V2 mess up the tune I have?

It's hard to say man. Since the kpro reads pressure in the manifold as a metric of engine load, the ecu looks up fuel from a different map location in various altitudes. If the base map was fine and the tune was done like I said, then you should be fine -- but I would always suggest doing a datalog and checking a/f after a major climate/altitude shift. The worst you would have to do is adjust fuel for the most part. You wouldn't have to get a full tune again.

Changing to different intake can cause your car to lean or richen some in the mid area of your map if I recall correctly -- once again, just double check fuel. I doubt changing intake like that will dicate any other tuning changes outside of slight fueling differences.

Wayne