Rep Power: 263

would i have to unplug my vtec when i put my turbo in ? or it doesn't matter ..?

 
Rep Power: 319

lol is this a serious question? If it is, prepare to put your flame suit on. If you have a vtec motor, you would need to switch to a non vtec motor or non vtec head to get rid of it.

 
Rep Power: 263

....yah thats true ..but im gettting different feedbacks from other pple that vtec / turbo is good if you have a low pressure turbo ..which im only running 6psi at most .. ....and they say tuning a vtec turbo is good..iono im confuse ...ha lol

 
Rep Power: 319

I'm guessing the arugment for a non vtec motor would be the fact the non vtec motors tend to have lower compression which is usually better for turbo. The vtec motors tend to have higher compression and geared more toward highend power.

 
Rep Power: 396

It dosent matter for us anyways. Some people flip out because they don't want vtec and their boost to come on at the same time, or they don't like the higher compression, or whatever, but since you (we lol) have vtec-e just think of it has a super advanced non-vtec

 
Rep Power: 583

technically non vtec is easier to tune vs vtec

 
Rep Power: 293

yeah but there is no need to switch over

 
Rep Power: 379

unhooking your vtec silinoid will do nothing for your compression. compression is from the pistons, not the head. unless you mill down the head and your compression will be a bit higher.

 
Rep Power: 287

its not like our vtec does anything so it doesnt matter.

 
Rep Power: 284

this has to be the funniest thing i have ever read.

unplug my vtec. hahahaha!

didnt you know? Vtec causes the muffler bearings to over spin and shatter due to the super-increased exhaust temperature velocity stacks that set off the blow off valve to go woosh into the atmospheric dump wastegate controller hooked to the profec e01 boost actuated switching system. so obviously, vtec can never be used with turbos. The universe would undo itself.


hahahahahaha..... unplug my vtec











just a small hint..... READ THE DAMN TURBO FAQ!!!! is there a single spot in there that even remotely suggests that vtec is bad for turbos? look at how many people with EX's have turbos. Then use common sense.

 
Rep Power: 280

^^
as he said
Vtec+turbo=dead universe

 
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if you vtec put on your bomb suit

 
Rep Power: 379

everytime my vtec kicks into hi cam a leprachaun gets out of my exhaust and pushes my car with his majic rainbow. Then Vin Diesel comes and and yells your going to blow the welds on your intake. Then its like sounds kind of like this *vrrrrmmm*spool*VRRRRMMMMMMM*spooling more*..wleds on your intake...*PSHT*. Then starts all over again in each and every gear.

 
Rep Power: 266

bwahahaha, that made my day

 
Rep Power: 263

iight calm down people..its just a question ... ...but First, VTEC is a 2 stage variable valve timing system. There are 2 cam profiles, one for low rpm's to maximize torque in that area, and the other one "opens up" to maximize torque in the high rpm region. Unlike the higher end variable valve timing systems such as BMW's which allows infinate amounts of lift/duration, the VTEC system only allows for 2 cam profiles.

In a low pressure turbo system, the VTEC cam profiles are used to maintain the same torque curve shape as a N/A VTEC engine, only difference is the torque curve is higher. In a high pressure turbo system, the VTEC system is disabled because the high lift cam at high rpms do not work well with high boost. What happens is the valves are still open during compression stroke, so the boosted mixture escapes before the valves close, therefore robbing you of power at high rpms. Since the low rpm cam profile doesn't exhibit this behavior, VTEC is disabled to use the low rpm profile across the entire powerband. Of course, the proper scenario would be a custom ground cam for low rpm and high rpm turbo operation, with the VTEC system intact, to maximize power across the entire power band.

As for tuning, there would be just 1 curve to tune... regardless of what cam profile(s) you'll be running, the load would be identical for that profile, and you would change the fuel maps based on your cam settings.

 
Rep Power: 263

so its like this ....VTEC is like 2 girls with 2 different profiles, and Turbo is like You, Some people think you plus 2 girls are a big no no, 'cause the 2 girls can cause a lot of high and varying tensions!! But in your reality, 2 girls plus you is very good, good compressions, after 5600 bumping around, you get REAL high, but it only last for 400 bumps more.... then it levels off and you can have a smoke... if you do smoke...

 
Rep Power: 284

dude, if it would do it at high boost levels, then it would exhibit the same symptoms under low boost levels. It is the same cam profile regardless of boost level. And they dont have all that much overlap and duration. The valves close at the very beginning of the compression stroke. Its not like they are open while the piston is 3/4 of the way up the stroke.

The only thing that could possibly even start to make me think i am losing the slightest bit of power would be the valve overlap. The longer the overlap (amount of time that both the intake and exhaust valves are open simultaneously) the larger chance that you can lose an un-burnt fuel-air mixture through the exhaust. But the overlap on the D17 is not even close to making me worry about that. This does become more apparent on FI motors, but it is not anything that should cause you any worry on this motor.

 
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I dunno about anyone else but that made no sense to me...

bad analogy

 
Rep Power: 293

I just figured out that V-Tec is bad for turbo cars, I was reading a honda article, It stands for Very Terrible Especially for turbo Cars they just took out the "for turbo" because it sounds bad *** as V-Tec so make sure you unplug that **** or better yet drive your car off a cliff and don't get out of the car

 
Rep Power: 280

^^
Definatly LOL
Very Terrible Especially for turbo Cars ... I dont know what to do with turbo, but very well put Mike

 
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i'm gonna lock this....

thanks mike...