Honda Lean Burn D15B 3-stage VTEC

[rkcarguy]

Originally Posted by FullRacePhil

Here is mine... I am running Hondata S300 on a P28 ecu and using the auxiliary nitrous output through the purge solenoid pin to engage the 2nd "low-cam" VTEC (fuel and timing control are available in the nitrous outputs). I turbo charged the motor for better fuel economy and it works pretty good, A/F around 22:1 and getting 55+ mpg daily.

Nice work and nice results with the MPG. Would have never thought it possible to better the mpg with the turbo. Is it a pretty big snail so it's not boosting unless you really put your foot in it?
That's awesome that your seeing 22:1 AFR, now image if you could cut your aero drag in 1/2

[FullRacePhil]

I do wish I had more time to do aero. I used the OEM mirror deletes on both sides and took the windshield wipers off... not sure if it helped or not though.

[rkcarguy]

Jerry sold the original 3-stage I had referenced here but did get in another one in the last container shipment, and has one in stock as of 1/20/10