Chris, As Andrew explained i dont see why your having trouble controlling the injectors or your idle with the microtech. What sortof injectors are you running?? As for the exhuast side, i just used the coldest plugs i could find at repco. Ive had no problems. Steve.
andrew smith wrote: > Chris, > Mixture trimming is usually used when changing the size of the injectors or > pressure reg.The microtech should have no problems controlling the injectors at > idle unless the injectors are very big or leaking or just have a poor spray > pattern.Fluctuating vacum can also have an effect at idle.From memory you were > running a mtx8 with a fj20 dizzy as a pickup and using the microtech to drive 4 > coils.This means that you are running sequential injection with variable > injector timing so you should be able to get a good idle.You can also run it off > your tps at idle.Who is tuning your car? > You should be able to get the 14 by 1.25's from covs or you could try looking > around at some z24's as ive seen them with the blanking plugs.Usually out of > those 2.4 skylines.Sorry to butt in but i'm curiuos as to why they cant get good > injector control.Ive seen a z18 with a digi2 running 12a turbo injectors in > batch fire and it ran pretty rough at idle,would just stall every now and then. > Andrew Smith > > FJ MAN wrote: > > > Yeah now worries, i was really just questionin the need for the mixture trim > > if he went through and tuned the whole lot. Just been speaking to a few > > workshops lately and the popular concesus is that mixture trim isnt a good > > idea. Im not having a dig at all dont get me wrong, just interested in the > > timin/duration/pulse of your injectors especially at idle etc coz as i said > > we struck initial troubles with the microtech unable to control them. Also > > what have u done as far as blankin off the exhaust plugs ( did u grind them > > down flat or anything as i was told at higher rpms and boost etc they lead > > to pinging as they get to a temperature where they ignite the fuel again. So > > i went out chasing blanks but no one stocks 14mm 1.25s so i guess ill have > > to grind down the plug electrodes. Sorry for the novel just interested in > > getting a few opinions and you seem to be getting good results from the z18 > > so far. > > regards chris > > > > >From: "steven.taylor" <[EMAIL PROTECTED]> > > >Reply-To: [EMAIL PROTECTED] > > >To: [EMAIL PROTECTED] > > >Subject: Re: Z18ET limits. > > >Date: Thu, 22 Nov 2001 04:29:49 +1100 > > > > > >Mate im only using a Digi 1 microtech and it runs all the functions it > > >controls > > >beautifully. I get it dynoed down at Croydon autosports. I do all the > > >prepping > > >and they play with the computer. It took Jim a couple of hours i think on > > >the > > >initial tune to set everything up properly. From then on it has only needed > > >1/2 > > >hour sessions to re-tune it for mods that ive done.Basically pretty happy > > >with > > >it overall, has no flat spots, starts first go etc etc just like efi should > > >be.... > > >Steve. > > > > > >FJ MAN wrote: > > > > > > > Steve just curious, when you said you had a 30% mixture trim when your > > >cAr > > > > hit the dyno, was it tuned throughout the rev range at cruise, WOT etc > > >as > > > > well as this (just got mine tuned recently is all and the only thing i > > > > discovered was that microtech is crap when it comes to controlling the > > > > injectors (ca18det) injectors with it either runnin really lean or > > >really > > > > rich (1.2 or .75 on the lambda sensor, but at 1.12ms we eventually got > > >it > > > > down to perfect) basically just curious about how the comp works overall > > > > with your set up and how long u had to tune it for etc. > > > > hope this makes a bit of sense hah > > > > regards chris > > > > > > > > >From: "steven.taylor" <[EMAIL PROTECTED]> > > > > >Reply-To: [EMAIL PROTECTED] > > > > >To: [EMAIL PROTECTED] > > > > >Subject: Re: Z18ET limits. > > > > >Date: Wed, 21 Nov 2001 07:55:54 +1100 > > > > > > > > > > > Adam, > > > > > > As was my experience modding a z18et. Basically youll run out of > > >fuel > > > > >first. If your fuel supply system is adequate then youll need to > > >firstly > > > > >change your computer, then change your injectors (ca18/fj20det easiest > > > > > > bolt in). Combine this with your i/c, decent exhuast and a decent > > >tune > > > > >and you should be able to run 15+psi easy. > > > > > > > > > > > "Rowe, Adam" wrote: > > > > > > > > > > > > What are my limits if I start increasing my boost on the Z18ET? I > > >have > > > > >factory injectors, AFM and computer. I will be fitting an intercooler > > >and > > > > >would like to know what will max out first as I increase the boost. > > > > > > > > > > > > Adam Rowe > > > > > > > > > > > > > > >--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]/ > > > > > > > > >--------------------------------------------------------------------- > > > > > > > > > > > > > _________________________________________________________________ > > > > Get your FREE download of MSN Explorer at > > >http://explorer.msn.com/intl.asp > > > > > > > > > > > _________________________________________________________________ > > Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp > > > --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]/ ---------------------------------------------------------------------
