b16a vtec function??

[freakyp]

when is the best rpm for b16a vtec to open?? isn"t depends on road condition or drivers demand?? which rpm setting is the best for power n consumption?? is spoon vtec controller good enough for the setting?? pls help...

 

[bien335]

Factory setting is the best.

Unless you know what you are doing, only then can you fiddle with the VTEC crossover point. If not, best to leave it stock.

There is a reason why the VTEC crossover point is set at the specified point. Set the crossover point too early, then you are not getting the most from the VTEC lobes, infact, the engine might feel lethargic because you set the crossover point too early.

read more, learn more.

 

[freakyp]

thx 4 the advice... but heard from a friend that we can really hv fun wit the b16a engine... cause there's lot's of modification u can do to it... it can really be push to a higher level...

 

[arrowhead]

yes. the engine has potential, but due to its 1.6 displacement, there are limits. if u wan higher level, get a b20 block. hahahaha...

 

[bien335]

frankenstein motor?

let's wait for shiro to chime in and pour his thoughts.

 

[J101]

get the vtec controller, set it to 9999 rpm. no need vtec. no need high cam. more fuel saving. more money for other things :)

which rpm setting is the best for power n consumption?? is spoon vtec controller good enough for the setting?? pls help...

 

[hattech-v]

make it open always..... from rpm 1..... like loo's car...

 

[shiroitenshi]

frankenstein motor?

let's wait for shiro to chime in and pour his thoughts.

No need Acura v6 engine better.. ha ha ha..
Depends la. with halfcut prices being what they are, and parts for b series also, most people that want to convert vtec most cabut lari after hear quotation.. lagi lagilah for EK halfcut.

but to explain the VTEC function, simply put.

VTEC is there for high rpm breathing.
When making small cc engines, the only way to do it is with high rpm, and with proper gear ratio to suit. However, this doesn't equate to low engine torque and drivability (high cam don't like low engine speeds), so having two cams helps(this is the core idea of vtec in it's simplest form)

If you compare wira 1.6 engines, can observe how the honda engine has lower torque, yet with the extra rpm, can use that lower torque efficiently by having proper gear ratio and 8K rpm.

But in truth, honda is not known only for their engine performance, but it's ability to stand to abuse.. imagine how many pre92 and 92+ B16/B18A/B/C still running around at 8-8.5K rpm, and you have the answer to that.

I myself have a 92 B16A, and my ring gaps at 81mm are still 0.16" with meter at more than 200,000kms on the odometer, at the standard bore size, no less.

Performance wise, yes, can be improved, but I'm not the type to throw away a perfectly working shortblock just to go 2L, not esp. when it has served as my daily driver for so long.

Anyway, you'd be hard pressed to find a new car that can outrun an OLD stock b16A equipped civic, unless it costs more than 100K. (a lot more), which is why halfcuts can sell at 10K+, and there's still people who would buy it, although at smaller volumes.

Anyway, for all intents and purposes (daily driving), the b16a is good enough, a tune adjustment for it's well known lack of low end torque, a slight bump up in compression when you service head gasket/valve grind, it makes a car that is drivable enough, yet with the extra grunt at top end when you want to overtake lorries on hills by just dropping a gear (or two)

If there is a need for power, then a B20B block is just another few thousand

 

[super fei lo]

No need Acura v6 engine better.. ha ha ha..
Depends la. with halfcut prices being what they are, and parts for b series also, most people that want to convert vtec most cabut lari after hear quotation.. lagi lagilah for EK halfcut.

but to explain the VTEC function, simply put.

VTEC is there for high rpm breathing.
When making small cc engines, the only way to do it is with high rpm, and with proper gear ratio to suit. However, this doesn't equate to low engine torque and drivability (high cam don't like low engine speeds), so having two cams helps(this is the core idea of vtec in it's simplest form)

If you compare wira 1.6 engines, can observe how the honda engine has lower torque, yet with the extra rpm, can use that lower torque efficiently by having proper gear ratio and 8K rpm.

But in truth, honda is not known only for their engine performance, but it's ability to stand to abuse.. imagine how many pre92 and 92+ B16/B18A/B/C still running around at 8-8.5K rpm, and you have the answer to that.

I myself have a 92 B16A, and my ring gaps at 81mm are still 0.16" with meter at more than 200,000kms on the odometer, at the standard bore size, no less.

Performance wise, yes, can be improved, but I'm not the type to throw away a perfectly working shortblock just to go 2L, not esp. when it has served as my daily driver for so long.

Anyway, you'd be hard pressed to find a new car that can outrun an OLD stock b16A equipped civic, unless it costs more than 100K. (a lot more), which is why halfcuts can sell at 10K+, and there's still people who would buy it, although at smaller volumes.

Anyway, for all intents and purposes (daily driving), the b16a is good enough, a tune adjustment for it's well known lack of low end torque, a slight bump up in compression when you service head gasket/valve grind, it makes a car that is drivable enough, yet with the extra grunt at top end when you want to overtake lorries on hills by just dropping a gear (or two)

If there is a need for power, then a B20B block is just another few thousand

few thousands..???
i think u meant by MANY THOUSANDS :rolleyes:

but for sure you will ask for more..
without any purpose,just fro the adreline

 

[shiroitenshi]

few thousands..???
i think u meant by MANY THOUSANDS :rolleyes:

but for sure you will ask for more..
without any purpose,just fro the adreline

depends on the B20B spec la..
for beginer, B20B block + CF 4 pistons + light tune = a few thousand.
depending on budget, power output is sure different.

But the only complaint for b16a usually is the lack of low end torque. for most purposes, the top end is good enough.

 

[fobs]

depends on the B20B spec la..
for beginer, B20B block + CF 4 pistons + light tune = a few thousand.
depending on budget, power output is sure different.

But the only complaint for b16a usually is the lack of low end torque. for most purposes, the top end is good enough.

aikkssss,... my local sifu, vtec king, is using something like this,... he beginner? :hmmmm::hmmmm::hmmmm:

 

[freakyp]

thx to all vtec sifu...

 

[shiroitenshi]

aikkssss,... my local sifu, vtec king, is using something like this,... he beginner? :hmmmm::hmmmm::hmmmm:

beginner spec la.. sifu will always use lower spec engine for lastability mah.. if he spend more time on his engine, no time to kawtim customer engine.

Better spec is more than 2.0 litres stroked, forged pistons, sleeved block lightened rods/crank etc. etc. for 9K+ RPM ability

And definitely more than 85mm bore :P

Powerful? Yes.. Lasting? Quite.. but high maintainance. You'd have to overhaul the bearings often, and spend a tidy sum on octane boosters to keep the knocking in check if using regular fuel.

The above engine making near 14CR and eats head gasket like nobody's business. Definitely not a daily driven engine lol. Disassembled already and planning to destroke to reduce compression, but it'll still be more than 2L.

 

[dcloo]

make it open always..... from rpm 1..... like loo's car...

put vtec killer cam lar easy n simple just like vtec always open
can rev the engine pass over 9500 rpm all the way sepang track lol..

 

[lightningfield]

i dont think that the vtec is functioning if youre using a vtec killer cams without the third vtec lobe. the cams have big profile so u dont need vtec to rev up to 9500rpm .