HERE ARE MY DYNO RESULTS DONE IN D.P.R.

Jan. 16, 1999

The first run was done with the following modifications:(blue graph)

• Car has 7,500miles

• remove airbox inside bumper leaving the top part.

• bypass coolant to throttle body.

• ignition timing was 14 deg. (stock)

• 92 octane gasoline

• advance ignition timing to 16 deg.

I didnt expect that I will lose 2.6HP and 1.7 ft-lbs of

torque on the whole power band after advancing the timing for 2

deg. only! it's maybe cause by the more strict OBD-II that

regulates exhaust emissions. So further dyno runs are needed

to confirm the theory. I might try to retard the timing to see

if it actualy increases power?!! notice that the vtec cross over

around 5,300RPM cause a slight dip in power. (update 2/01/99)

the dyno results confirmed that 97 and older cars (OBD I)

respond to ignition advance and gain 2-3hp. while the cars from

98 to present (OBD II) lose power.

March 3rd, 2001

The first run was done with the following setup:(red graph)

• Car has 65,000miles

• DC sports 4 in to 1 ceramic header

• 5Zigen Border Muffler

• ignition timing was 10 deg. BTDC (spec 12� +/- 2�)

• 92 octane gasoline

• advance ignition timing to 12 deg. BTDC

• advance ignition timing to 14 deg. BTDC