Vtec controller?
#2
06-02-2006, 01:07 AM
I will go ahead and stop this before you get attacked. The Honda Fit's version of VTEC is nothing like the traditional VTEC you are thinking of which uses different cam lobes. All the L15As "VTEC" does is during normal driving, only 2 of the 4 valves are being used, once a certain RPM is reach all 4 valves kick in. I am assuming this is used to create better gas mileage.
#5
06-02-2006, 11:25 AM
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#6
06-02-2006, 11:31 AM
Originally Posted by dougiepants
wait for Hondata version for sure
#7
06-02-2006, 03:31 PM
Originally Posted by claymore
Before you get flamed direct from the Honda repair manual:
"VTEC System L15A1 engine
The VTEC system changes the cam profile to correspond to the engine speed by the VTEC solenoid valve. It maximizes torque at low engine speeds and output at high engine speed.
The low lift cam is used at low engine speeds, and the high lift cam is used at high engine speeds."
"VTEC System L15A1 engine
The VTEC system changes the cam profile to correspond to the engine speed by the VTEC solenoid valve. It maximizes torque at low engine speeds and output at high engine speed.
The low lift cam is used at low engine speeds, and the high lift cam is used at high engine speeds."
#8
06-02-2006, 03:35 PM
According to Wong over at Temple of VTEC Asia - it's not a 2 / 4 valve VTEC but a 3/4 valve with an additional intake valve only opening ...
http://asia.vtec.net/Series/FitJazz/lseries/index.html
"The VTEC mechanism on the L15A VTEC is that of a 1-valve/2-valve system for the intake side only. The exhaust side always functions as a 2-valve system. So the L15A VTEC is a 12valve/16valve system."
http://asia.vtec.net/Series/FitJazz/lseries/index.html
"The VTEC mechanism on the L15A VTEC is that of a 1-valve/2-valve system for the intake side only. The exhaust side always functions as a 2-valve system. So the L15A VTEC is a 12valve/16valve system."
Last edited by Jonniedee; 06-02-2006 at 03:42 PM.
#12
06-23-2006, 05:34 AM
vtec controllers are NOT a good idea. i've tried them on several cars including my own. after dyno tuning, it looks good on the dyno with ~10hp increase, but the car runs very odd. cylinders misfire due to weather changes, which those AFC's dont have-temperature compensation. also, they cant tune cam angles and ignition advance.
it will work as in the displaying and hooking up wires, but as for the tuning aspect, its just plain SHIT. i got rid of it on ebay, got hondata kpro. best shit ever.
i have close ties with Hondata. they've already checked out the Fit's ecu and stock fuel maps. they've determined that it was already WELL TUNED from the factory and any attempt of them trying to make it better would not be worth the money.
the only time u'll need to worry about EMS's is when u boost. so dont bother with it if u're n/a.
it will work as in the displaying and hooking up wires, but as for the tuning aspect, its just plain SHIT. i got rid of it on ebay, got hondata kpro. best shit ever.
i have close ties with Hondata. they've already checked out the Fit's ecu and stock fuel maps. they've determined that it was already WELL TUNED from the factory and any attempt of them trying to make it better would not be worth the money.
the only time u'll need to worry about EMS's is when u boost. so dont bother with it if u're n/a.
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