Found this sweet engine that toyota made called a '3sge'

200hp with vvti, 2.0L sounds like v-tec? did these guys copy it? i thought ford invented it.


http://www.tuning.cz/lander/beams.htm

 

Honda invented it and got a patent on the system, later on they decided to license it out to those willing to pay, i.e. Toyota.

 

Toyota isn't the only company with a system similar to Honda's VTEC system. Mitsubishi has it (MIVEC), Nissan (VTC) to name a few.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PreludeWA &raquo;</TD></TR><TR><TD CLASS="quote">Found this sweet engine that toyota made called a '3sge'

200hp with vvti, 2.0L sounds like v-tec? did these guys copy it? i thought ford invented it.


http://www.tuning.cz/lander/beams.htm</TD></TR></TABLE>

ford? hahaha...
vvti equals self cam timing adjustment -
vvti-L has lift...
Honda found it, others bought it..

 

Yes I know, but no one had it back in 1988 when the first VTEC B-16 was made by Honda, that's the origin of the technology.

 

didint GM first introduce a the first version of it back in the 70s or 80s?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WhiteGSR95 &raquo;</TD></TR><TR><TD CLASS="quote">didint GM first introduce a the first version of it back in the 70s or 80s?</TD></TR></TABLE>

to my understanding honda didnt create vtec....i dunno who created it i just know honda didnt

 

I am pretty sure variable valve timing has been around since the 70's although I dont know who inveneted it but im sure it wasnt Honda. Honda has just marketed it the best and probably advanced the technology the most.

 

bmw have a pretty cooly system too..

 

the first toyota vvt only controlled valve timing on the intake cam, but i guess the vvt-i controls lift as well. not sure, i just know the vvt on my 20v 4ag motor is oil controlled and simply advances cam timing at a certain rpm. the 3s has a similar oil controlled cam gear.

 

vvti uses an oil pressure based system to vary the cam timing. I think it is self varying 15-20 degree's retarded or advanced. Systems like tha tuse inputs from all kinds of sensors. Lots of companies use timing adjustment and call it all kinds of crap like vvt-i, CVVT, etc. It is different from Vtec in that is DOES NOT have an induction (lift) adjustment...just timing. Vtec engages a second cam profile and is an on/off switch....timing adjustment systems vary a single profile in how its applied in relation to TDC and BDC.


If I am not mistaken Ivtec uses a timing maniuplation up to 50 degrees retard or advance as well as a three lobe camshaft to change lift profiles.

 

ive heard about ford inventing it too.. back in the late 80s , early 90s time period.

 

Then again, variable valve timing and VTEC are two completely different things.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">Honda invented it and got a patent on the system</TD></TR></TABLE>
If I remember correctly, Mercedes invented it in the 20's-30's