My freind has a vtec integra that he put a switch on to control the vtec kick-in time, and I just wanted to know if this is a good idea and would it be safe to do on my Prelude? Would it even provide any advantage?
2. you really need to google vtec and see how it works because you obviously have no concept of how it works
3. its safe if other things are in place but you need to understand #2 first before
3. it "could" have an advantage once you understand #2 & #3
Sorry man it was just a question and i didnt know where to put it. I do understand vtec entirely, as i have worked on vetc heads before. I just wanted to know if its safe to have vtec turn on at lower rpm than factory, as ive herd it provides a small advantage at about 3500 to 4000 rpm on my gen 5 lude. Cheers
^wasn't there a thread a long time ago where someone did gain a little from lowered vtec engagement? I think it was 5k rpms or something?
Anyways, NZ Lude, you need some other mods to make it worthwhile and even better would be a programmable ecu that could take advantage of a lowered vtec engagement. I wouldn't recommend a piggyback system either.
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"I am a ricer because I have Z3 fenders"
^ I think so, but the problem is that the engine will "think" it is not in VTEC with a lower engagement. I don't know if the person with gains had hondata, neptune, etc or just a regular p5 or p13.
Thanks guys. You have to admit it can sound pretty cool when the engine sound changes as you boost past someone even if its not making it go that much faster. Just out of curiosity, what vtec controllers are the best(if you even think anything of such a change to the car) and at how many revs do b18's turn the vtec on? Thanks again
In all honesty, I wouldn't suggest and kind of VTEC controller. Only reason you would want to make it kick in earlier is if you change the gear ratios or something. When you shift through each gear in the lude, (IE: if you're drag racing) you shouldn't fall out of lift each shift. I had a VAFCII for awhile and even tuned, it's best advantage was fixing the tendency of the engine to run pretty rich. Plus, like stated above, it's inherently worthless without changing fuel maps to match.
I want to say around 6200 RPM for B18 VTEC engagement but I'm sure it varies...
^it would but again, i think there are other worth while bang for the buck mods if you want more power.
I disagree.
A lot can be had with a simple tune, even if its just the VAFC. Most people don't recommend VAFC because its a piggy back and if not handled properly can ruin your engine. Greddy Emanage is more expensive, and a better piggy back but can be just as dangerous if not done correctly. However, as an SH owner, those are really the only two options.
A buddy of mine Chris for a couple years had the same mods almost as my, intake, header, exhaust. Yet he carried a good 20 ft lbs of tq more than I. Difference? He had his tuned with VAFC. Not sure if his vtec point was pushed earlier or not. But a GOOD tune can really benefit you, often much more than any intake, or exhaust will.
The h22 does not get power from mods that are less than 300 bucks. Intakes, minimal, header minimal (unless 1200 smsp etc), exhaust minimal.
The big power gains are GOOD expensive header. Port and Polish head, and aggressive cams. All of which require a tune to really get the best out of them.
A lot can be had with a simple tune, even if its just the VAFC. Most people don't recommend VAFC because its a piggy back and if not handled properly can ruin your engine. Greddy Emanage is more expensive, and a better piggy back but can be just as dangerous if not done correctly. However, as an SH owner, those are really the only two options.
A buddy of mine Chris for a couple years had the same mods almost as my, intake, header, exhaust. Yet he carried a good 20 ft lbs of tq more than I. Difference? He had his tuned with VAFC. Not sure if his vtec point was pushed earlier or not. But a GOOD tune can really benefit you, often much more than any intake, or exhaust will.
The h22 does not get power from mods that are less than 300 bucks. Intakes, minimal, header minimal (unless 1200 smsp etc), exhaust minimal.
The big power gains are GOOD expensive header. Port and Polish head, and aggressive cams. All of which require a tune to really get the best out of them.
A lot can be had with a simple tune, even if its just the VAFC. Most people don't recommend VAFC because its a piggy back and if not handled properly can ruin your engine. Greddy Emanage is more expensive, and a better piggy back but can be just as dangerous if not done correctly. However, as an SH owner, those are really the only two options.
A buddy of mine Chris for a couple years had the same mods almost as my, intake, header, exhaust. Yet he carried a good 20 ft lbs of tq more than I. Difference? He had his tuned with VAFC. Not sure if his vtec point was pushed earlier or not. But a GOOD tune can really benefit you, often much more than any intake, or exhaust will.
The h22 does not get power from mods that are less than 300 bucks. Intakes, minimal, header minimal (unless 1200 smsp etc), exhaust minimal.
The big power gains are GOOD expensive header. Port and Polish head, and aggressive cams. All of which require a tune to really get the best out of them.
I agree, but coming from reading the OP, if he doesn't have all those bolt ons to start with, a tuned VAFC wouldn't gain 20ft/lb right out of the box. I know most ppl want to keep the ATTS too but if he doesn't have a Sh, well he's got more options
BTW I'm still a fan of the piggy back system for cars, maybe not hondas (because of the multitude of aftermarket systems) but it really is a useful tuning tool in newer cars because of the lack of aftermarket support.
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"I am a ricer because I have Z3 fenders"
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