been thinking v-tec point


lumek4

lumek4

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Oct 29, 2007
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ok people i have a ek4 b16a2 and have a set of ek9 cams that i am away to fit next month. was thinking about when the v-tec point will come in cos my standard ek4 v-tec comes in at 5700rpm and want to know if that will change to 6200 like the ek9 when i fit the CTR cams
 
no changeing cams does not affect your vtec crossover, however when changing cams you should have some sort of ems that can change vtec/ign/fuel.
 
It didn't make much of a noticable difference when I added the B16b cams to my VTi a few years back.

You deffinately notice a change in sound, but I guess Blinx is right...you should have some sort of tune to go too it because the ratios in air / fuel will be different etc.
 
blinx9900 said:
no changeing cams does not affect your vtec crossover, however when changing cams you should have some sort of ems that can change vtec/ign/fuel.
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i know i will need a re map once i get the cams in. but will the car run ok without a re map or is it a wast of time putting the cams in till my car is ready for its re map
 
lumek4 said:
or is it a wast of time putting the cams in till my car is ready for its re map
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it is a waste of time unless you do a remap. example:

my friend has a 2.0 with 13:1 compression, full port/polish, BC stage III cams and he lost to my other friend who has a b18c with cams, the reason he lost is becuase he does not have a remap yet.
 
nope, because the B16a has many different things than the B16b with regards to air / fuel ratios, so it would benefit in some ways but not in others.
 
so im going to need to get my re map sorted out so i can fit the cams and get it mapped rite away
 
No. If you have a VAFC or Power Fc or such like, you can adjust the Air / Fuel ratios to smoothen it out and reap the benefits from the EK9 cams.

They are not really that much different from the standard B16a cam shafts, but the VTEC lobe is more aggressive.

It only really requires a small tweak.

The standard ECU 'should' learn that it has a different cam profile and adjust accordingly, as it 'should' when fitting a Type R throttle body on the inlet.

But the use of the VAFC etc will maximise the benefits.
 
blinx9900 said:
thats not a bad idea.

i hate vafc, you cant tune ignition.
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so blinx its the ECU that needs looking at here for the ignition timming to get the max out they cams. how about hondata will that do the job or is there anything u can recomend
 
anything like:

hondata, power FC, hks fcon, aem ems, aem fic, emanage ultimate.
 
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