Nice, is there much sound/power difference without the centre muffler?
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Nice, is there much sound/power difference without the centre muffler?
Thanks for posting the graph. That dyno is reading way too high for some reason. Maybe it wasn't calibrated properly, I'm not really sure.
In SRI mode there is less loss of power/torque down low due to the pipe being shorter but you will definitely be losing power after driving for a while due to the intake breathing in hot air from the engine bay. The solution around that would be install a heatshield around the pod. There's 3 solutions for that from what I've seen:
1. Gruppe M Intake with CF heatshield
http://www.ozhonda.com/forum/showthr...em+intake+euro
2. J's racing Intake with heatshield and bumper ducting (similar to Mugen)
http://www.ozhonda.com/forum/showthread.php?t=62499
3. Aaron's ghetto style heatshield
http://www.ozhonda.com/forum/showthread.php?t=53595
In full CAI mode, whether it is the K&N or Injen system, due to the length of the tube (even with the new tuned system) you will lose some power and torque in the low end but gain on the top end.
Yup, the best gauge will be to see what other cars did that day.
Your A/F ratios are very good. Do you have ECU tuning there? It's very impressive for the stock ECU to stay between 11.8 to 12.5:1 at VTEC. To compare, mine was between 10.7 to 10.9:1 in VTEC, which is very rich and robs the engine of some power.
nah never tuned... id done a 600km drive on 98ron with octane booster the day before... and it was cold... other cars their all got similar to what they had got on previous runs.... so i dont think the dyno was out...
i only had SRI on at that stage because it was winter in canberra (no worries for engine temp! i now have full CAI installed with summer coming along... if i get my headers and UR pulleys before the next dyno do ill be there...
in regards to sound difference without centre muffler - i removed both the big ass hotdog and centre muffler (had custom straight through piping made up). but high freg hyundai style sound was happening... so got high flow resonator put in... sounds pretty much stock now (except at WOT) ask Suntzu, he's heard and seen it...
what's octane booster?
whats the centre muffler? explain to me ?
Euro has 4 mufflers stock...
two in the centre, then the piping splits and goes to the two rear ones... creates alot of back preassure, but makes it quiet as all hell... so i took out the centre two, allowig the gases to flow alot smoother...
and yeah yfin prob was around 100, i have no idea, i was just taking rough guess