Dyno Session #1
Dyno Session #2
B20Z vs. B20B
The sounds files are mono, mp3s that are autogain balanced. Because of
this the actual loudness difference between the exhausts is not accurately
represented. But the tone is accurate. Keep in mind that the JDM ITR 4-1
header adds a metallic blatty rasp to all the system. Sound is very subjective.
So listen and make your own decisions on what you like. My comments are
an attempt to be objective.
Magnaflow Street with cat
Quiet, with a slight fluff sound
Magnaflow Street without cat
Louder, fluff is more pronounced, JDM 4-1 blat more noticeable
Magnaflow Race with cat Loud,
deep at low rpms
Magnaflow Race without cat Much
louder especially at high rpm, deep and loud at low rpms. Plenty of JDM
4-1 blat comes thru
Greddy BL without cat Lower
frequency, controls the R header blat
Tanabe RM without cat The
loudest at all rpms, plenty of blat.
Final Curves and thoughts for next time
Final curve from the dyno session. No ign, fuel or
cam timing tuning was done.
Comments: 138hp @ 5700 and 132 ft-lbs @ 5200 to the wheels.
Versus factory specs of 146 hp @ 6200 and 133 @ 4500 to the flywheel.
So the flywheel numbers would look more like 156hp and 150ft-lbs. All
that torque from what is basically just header, exhaust and a stock
GSR cotton filter. I do want to find out why my hp peak is at 5700,
and a stock 99-01 CRV is peaking at 6200. Probably running out of fuel.
Next time: Obviously some tuning is in order. Cam gears, FPR,
the Shogun, and maybe a J&S will be added to the mix. Lets see what this baby can do.