$55k 2009 Original-Owner Honda K20 Atom 3

[timcking]

Decided not to sell. Thanks for everyone's interest.

[underpressure02]

Do you have any pictures?

[timcking]

Here you go. Thanks for the interest.

[marco]

I would be interested in its horse power figures. specifically engine details of modifications
effecting the performance. Assume no supercharger or Turbo Boost. Have you any
tract figures? Take me straight Im ready to drop CASH.

--Mark
PM for cell comm.

[timcking]

I would be interested in its horse power figures. specifically engine details of modifications
effecting the performance. Assume no supercharger or Turbo Boost. Have you any
tract figures? Take me straight Im ready to drop CASH.

--Mark
PM for cell comm.

You're right; it has no supercharger or turbo. The gain is solely from tuning resulting from replacing the OEM ECU to make it smog legal. The original Hondata unit was replaced with a K-Pro unit from the same source. This was done by a certified Hondata technician. He based the tuning on 91 octane fuel. I believe I have a chassis dyno printout showing 227 hp at essentially sea level in Sacramento. Before this modification, the OEM ECU produced 202 hp as a benchmark. If you take the same percentage hp loss for the originally claimed 245 hp, and apply it to the 227 hp, you get just over 270 hp. Coincidentially this is what the naturally-aspirated limited edition Mugen model claims. I'd bet they did exactly the same.

Let me know if you have any other questions.

Tim

[jeff8407]

Tim, I think you are exactly correct. I have had three 2.0 Honda engines professionally tuned on a chassis dyno using KPro. All three(K20A--DC5, K20A--EP3, K20A2--RSX Type S) engines registered between 197 and 207hp on the dyno as corrected baseline runs.

All three engines gained as a result of custom tuning on 93 octane pump gas:
228hp--Kpro tune and RBC intake
231HP--KPro tune, RBC intake, 66mm throttle body
241--KPro tune, RBC intake, 4-2-1 exhaust header, Drag Cartel DIC's, RDX injectors, 66mm throttle body(this engine actually made 247 hp at peak tune, but was "detuned" to 241hp in order to get 12 additional lb/ft of torque, enhancing drivability.)

I think the numbers you listed are spot on....

If you go to the KPro forums you can see dozens/hundreds of examples of such tuning.

jeff

You're right; it has no supercharger or turbo. The gain is solely from tuning resulting from replacing the OEM ECU to make it smog legal. The original Hondata unit was replaced with a K-Pro unit from the same source. This was done by a certified Hondata technician. He based the tuning on 91 octane fuel. I believe I have a chassis dyno printout showing 227 hp at essentially sea level in Sacramento. Before this modification, the OEM ECU produced 202 hp as a benchmark. If you take the same percentage hp loss for the originally claimed 245 hp, and apply it to the 227 hp, you get just over 270 hp. Coincidentially this is what the naturally-aspirated limited edition Mugen model claims. I'd bet they did exactly the same.

Let me know if you have any other questions.

Tim

[timcking]

Thanks Jeff.

Tim, I think you are exactly correct. I have had three 2.0 Honda engines professionally tuned on a chassis dyno using KPro. All three(K20A--DC5, K20A--EP3, K20A2--RSX Type S) engines registered between 197 and 207hp on the dyno as corrected baseline runs.

All three engines gained as a result of custom tuning on 93 octane pump gas:
228hp--Kpro tune and RBC intake
231HP--KPro tune, RBC intake, 66mm throttle body
241--KPro tune, RBC intake, 4-2-1 exhaust header, Drag Cartel DIC's, RDX injectors, 66mm throttle body(this engine actually made 247 hp at peak tune, but was "detuned" to 241hp in order to get 12 additional lb/ft of torque, enhancing drivability.)

I think the numbers you listed are spot on....

If you go to the KPro forums you can see dozens/hundreds of examples of such tuning.

jeff