F22 or F23 ... (boosted)
#21
RE: F22 or F23 ... (boosted)
Noooo .... don't do that!!! If you disconnect VTEC without changing the camshaft, your engine will always run with the valves in the partially closed position hurting your performance majorly! If you use a VTEC defeating camshaft, this will be changed and the cam is tuned to move the valves properly without VTEC engagement. For your setup, you just want to make sure that your turbo kicks in when VTEC is already in the high cam mode.
#22
RE: F22 or F23 ... (boosted)
ORIGINAL: KevinAccord
so, my car is turbo and i left the VTEC on... should i unplugg the VTEC?
ORIGINAL: BlkCurrantKord
VTEC does not put strain or pressure on the engine. If it did, it wouldn't be there in the first place. However, VTEC will not engage unless the conditions are right, engine speed, oil pressure, etc.
VTEC does not put strain or pressure on the engine. If it did, it wouldn't be there in the first place. However, VTEC will not engage unless the conditions are right, engine speed, oil pressure, etc.
#24
RE: F22 or F23 ... (boosted)
NO! YOU STILL CANT!
different cam profiles do different things across an RPM range.
one profile idles really well but sucks at high rpm, while another profile will suck at idle (leading to that BRRUmmmbumbumBRRUmmmbumbum sound from muscle cars) while dominating the high rpms.
Non-Vtec engines have a compromise between the two profiles.
Vtec engines have one profile for the low rpms and one for the high rpms. if you unplug it, youll be left with only the low rpm cam profile. You have to put in a Vtec Defeating cam to defeat this, or in other words, you need to put in a camshaft with a compromising cam profile, similar to the F22B2's camshaft (non-vtec)
different cam profiles do different things across an RPM range.
one profile idles really well but sucks at high rpm, while another profile will suck at idle (leading to that BRRUmmmbumbumBRRUmmmbumbum sound from muscle cars) while dominating the high rpms.
Non-Vtec engines have a compromise between the two profiles.
Vtec engines have one profile for the low rpms and one for the high rpms. if you unplug it, youll be left with only the low rpm cam profile. You have to put in a Vtec Defeating cam to defeat this, or in other words, you need to put in a camshaft with a compromising cam profile, similar to the F22B2's camshaft (non-vtec)
#25
RE: F22 or F23 ... (boosted)
you can say no you still cant all you want...... when yes... you can..... it doesnt mean it wont be a waste of time and/or money or even be long term solution to the life of the engine
#26
RE: F22 or F23 ... (boosted)
no, you cannot. Maybe small levels of boost, but once VTEC engages the backpressure from the exhaust will overwhelm the incoming boost pressure and push exhaust gases into the intake manifold. in other words, NOT GOOD!
also a fair amount of the combusting gas inside the cyl. will be exhaust gas, leading to much less power and much more detonation.
also a fair amount of the combusting gas inside the cyl. will be exhaust gas, leading to much less power and much more detonation.
#27
RE: F22 or F23 ... (boosted)
ok thanxs guys... very helpfull info... not gonna do it then... Thanxs everyone... i've got another question, but ill ask later, im @ my gf's house and i still dont have internet @ home (im moving)... gonna ask in a few days... thanxs again..
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AbaZ
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07-16-2008 11:23 PM
1993, 2000, accord, boosted, boosting, comparison, compression, engines, f22, f23, f23a4, f23a5, honda, horsepower, motor