If you have solenoid operated valves, you dont need a Camshaft, I presume. Now this is a step forward in performance, no heavy cam and drive gear, no heavy valve springs, fully programmable valve timing. Higher reliability and higher revs. Sounds a big improvement. ----- Original Message ----- From: "Bob" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, 20 March 2002 23:04 PM Subject: Re[4]: SR questions
> Hello Terry, > > The next evolution of the variable valve timing systems used on modern > cars is using solenoid driven valves - using a microprocessor to > control valve opening and closing means that the cam profile can be > tailored exactly to the engines requirements at every load point in > the map. Apparently the current draw is a big problem in these > systems, but last I heard Mercedes were playing with a hydraulic > version. > > Wednesday, March 20, 2002, 10:08:08 PM, you wrote: > > TR> Leighton, > > TR> The trick is the valve timing is tuneable across a broad rev range. I > TR> digress a bit but look at the advancement of EFI over a carbie. A component > TR> that's got to operate inside a 0-7000 rpm rev range at it's static > TR> adjustment is a marvel in itself i.e. a carbie and that's why a Weber for > TR> example is so hard to set up in the first place. Add optimum adjustability > TR> to this item and you've got huge power gains and smooth driveability which > TR> Mr Joe Average wants in his road car. I think from memory the biggest > TR> increase of a non VVT engine to VVT is the H*nda S2000 which it pains me to > TR> say but it is a true legendary engine. Honda had the benefit of F1 engine > TR> technology and some nice things find their way down to the road cars. It's a > TR> pity Nissan/Toy etc didn't give this technology the R&D it deserved. It was > TR> boohooed by GM & Ford in the 80's when the H*ndah boys started to play with > TR> this in an attempt to beat Ferrari on the F1 circuits. > > TR> regards > TR> Terry > > TR> -----Original Message----- > TR> From: [EMAIL PROTECTED] > TR> [mailto:[EMAIL PROTECTED]]On Behalf Of Leighton > TR> Sent: Wednesday, 20 March 2002 9:35 PM > TR> To: [EMAIL PROTECTED] > TR> Subject: Re: Re[2]: SR questions > > > TR> and this is a great advantage when chasing power?? > > > TR> Thanx > > TR> Leighton > TR> ----- Original Message ----- > TR> From: "Bob" <[EMAIL PROTECTED]> > TR> To: <[EMAIL PROTECTED]> > TR> Sent: Wednesday, March 20, 2002 8:16 PM > TR> Subject: Re[2]: SR questions > > > >> Hello Leighton, > >> > >> You know how you can buy adjustable cam gears to advance or retard > >> your cam to shift the power band up and down? On SRs and a heap of > >> other motors they have a cam gear that can be adjusted as the motor is > >> running, so that when it is revving low they shift the power band > >> down, and when it is revving high they shift the band up. > >> > >> Wednesday, March 20, 2002, 7:42:23 PM, you wrote: > >> > >> L> what does it mean when it says that the SR's have variable valve > TR> timing????? > >> > >> L> thanx > >> > >> > >> L> Leighton > >> > >> > >> > >> > >> > >> L> ----- Original Message ----- > >> L> From: Mr-Freeze > >> L> To: [EMAIL PROTECTED] > >> L> Sent: Wednesday, March 20, 2002 4:42 PM > >> L> Subject: Re: SR questions > >> > >> > >> L> who said DE's don't have oil squirters??? > >> L> ----- Original Message ----- > >> L> From: Leighton > >> L> To: [EMAIL PROTECTED] > >> L> Sent: Wednesday, March 20, 2002 4:10 PM > >> L> Subject: SR questions > >> > >> > >> L> Just a question and i would like you all to take me seriously?? > >> > >> L> what are the base differences between the SR20det and the SR20DE > TR> are the blocks different? are the heads different? is the valvetrain > TR> different?? i know the DE doesnt have oil squirters but > >> L> are they a difficult aquisition??? > >> > >> L> pistons rods crank are there any differences??? > >> > >> L> i would not think there would be because of people supercharging > TR> the DE's > >> > >> L> Now before youal say "why bother, just get a DET" just please > TR> humour me - lets just say im craving the knowledge > >> > >> L> Thanx > >> > >> L> Leighton > >> L> ----- Original Message ----- > >> L> From: Duncan Shillito > >> L> To: [EMAIL PROTECTED] > >> L> Sent: Tuesday, March 19, 2002 6:12 PM > >> L> Subject: Re: webber questions > >> > >> > >> L> for the trumpets - go to any repco etc. shop and ask fot their > TR> REDLINE catalogue and order the part - simple. they also sell manifolds, > TR> high flow filters and all sorts of 'old school' go > >> L> fast parts. > >> > >> > >> > >> L> dunc. > >> > >> > >> > >> L> >From: "Ryan Ottens" > >> L> >Reply-To: [EMAIL PROTECTED] > >> L> >To: [EMAIL PROTECTED] > >> L> >Subject: Re: webber questions > >> L> >Date: Mon, 18 Mar 2002 15:36:22 +1030 > >> L> > > >> L> > > >> L> >im pretty sure autosport here in adelaide on magill road sell > TR> them. > >> L> >at around $30-40 EACH > >> L> > > >> L> > > >> L> >>From: "Craig Coffey" > >> L> >>Reply-To: [EMAIL PROTECTED] > >> L> >>To: > >> L> >>Subject: Re: webber questions > >> L> >>Date: Mon, 18 Mar 2002 07:40:31 +1200 > >> L> >> > >> L> >>I don't know where in oz you'd get 'im, but they're called > TR> velocity > >> L> >>stacks > >> L> >> > >> L> >> > >> L> >> Craig > >> L> >> > >> L> >>----- Original Message ----- > >> L> >>From: "Leighton" > >> L> >>To: > >> L> >>Sent: Saturday, March 16, 2002 9:26 PM > >> L> >>Subject: webber questions > >> L> >> > >> L> >> > >> L> >> > Where can i get those trummpet looking things to stick on th > >> L> >>side of my > >> L> >> > dellorto's?? > >> L> >> > > >> L> >> > i dont even know what they are called > >> L> >> > > >> L> >> > can any one help me with some info of what they do and how > TR> they > >> L> >>aid > >> L> >> > performance?? > >> L> >> > > >> L> >> > > >> L> >> > thanx heaps > >> L> >> > > >> L> >> > Leighton > >> L> >> > > >> L> >> > > >> L> >> > >> L> > > >> L> > > >> L> > > >> L> > > >> L> > >>_________________________________________________________________ > >> L> >Chat with friends online, try MSN Messenger: > >> L> >http://messenger.msn.com > >> L> > > >> L> > >>--membersozdat------------------------------------------------------- > >> L> >OZDAT Mailing List Please Note:- > >> L> >Send (un)subscribe requests to [EMAIL PROTECTED] > >> L> >Send submissions to [EMAIL PROTECTED] > >> L> >No unauthorised redistribution of this email > >> L> >http://www.ozdat.com/ozdatonline/index.htm > >> L> >http://www.ozdat.com/ozdatonline/listindex.html > >> L> >http://www.mail-archive.com/[email protected]/ > >> L> > >>--------------------------------------------------------------------- > >> > >> > >> > L>> ------------------------------------------------------------------------ - > TR> - > >> L> Send and receive Hotmail on your mobile device: Click Here > >> > >> > --membersozdat------------------------------------------------------- > >> L> OZDAT Mailing List Please Note:- > >> L> Send (un)subscribe requests to [EMAIL PROTECTED] > >> L> Send submissions to [EMAIL PROTECTED] > >> L> No unauthorised redistribution of this email > >> L> http://www.ozdat.com/ozdatonline/index.htm > >> L> http://www.ozdat.com/ozdatonline/listindex.html > >> L> http://www.mail-archive.com/[email protected]/ > >> > --------------------------------------------------------------------- > >> > >> > --membersozdat------------------------------------------------------- > >> L> OZDAT Mailing List Please Note:- > >> L> Send (un)subscribe requests to [EMAIL PROTECTED] > >> L> Send submissions to [EMAIL PROTECTED] > >> L> No unauthorised redistribution of this email > >> L> http://www.ozdat.com/ozdatonline/index.htm > >> L> http://www.ozdat.com/ozdatonline/listindex.html > >> L> http://www.mail-archive.com/[email protected]/ > >> > --------------------------------------------------------------------- > >> > >> --membersozdat------------------------------------------------------- > >> L> OZDAT Mailing List Please Note:- > >> L> Send (un)subscribe requests to [EMAIL PROTECTED] > >> L> Send submissions to [EMAIL PROTECTED] > >> L> No unauthorised redistribution of this email > >> L> http://www.ozdat.com/ozdatonline/index.htm > >> L> http://www.ozdat.com/ozdatonline/listindex.html > >> L> http://www.mail-archive.com/[email protected]/ > >> --------------------------------------------------------------------- > >> > >> > >> > >> > >> -- > >> Best regards, > >> Bob mailto:[EMAIL PROTECTED] > >> > >> > > > > > > -- > Best regards, > Bob mailto:[EMAIL PROTECTED] > > --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[email protected]/ ---------------------------------------------------------------------
