Who all is using Evans Coolant?

[jdbubb at verizon.net (Dan Bubb)]

No, I don't think your vacuum vents would have anything to do with it 
because your TEC II fuel injection is MAP (manifold absolute pressure) 
based. It doesn't care where the air comes from, it only measures manifold 
pressure and meters fuel based on that.
Injector turn on time can vary depending on type (disc or pintle) and 
impedance (low impedance typically opens faster) but is generally in the .75 
to 1.0 msec range as far as I know.
Personally, I think that tuning the fuel injection on a TEC II is a pain in 
the ass, so I never paid enough attention to the specifics. I'd change the 
opening time back to 1.0msec and adjust the other parameters to attain the 
apparent improvement you've made. Changing the opening time to an incorrect 
value is sort of a bandaid it would seem to me although it does seem to 
indicate some more tuning is in order.
BTW, if you don't have a WB-O2 then check out the Innovate LC-1. With sensor 
it's under $200 and will be a huge help to tuning WOT.
Dan


From: "Don Walter" <dswalterwi@gmail.com>
Sent: Tuesday, July 19, 2005 10:22 PM

Dan,
Do you think my vacuum vents not operating could be causing a lean
condition? I noticed I no longer have a check valve in the vacuum line.
Maybe I should plug the main line going to the vents to check and see.
 What is the minimum injector turn on time? I upped mine to 2.0ms from
1.2msand it evened out my idle and I must have gained 20 more seat of
the pants
HP.

 On 7/19/05, Dan Bubb <jdbubb@verizon.net> wrote:
>
> I'm not running Evans since my car has inadequate cooling (525mm radiator,
> AC, 2.0L 8V and a bunch of other heavy stuff that I appreciate) and Evans
> has lower heat transfer capability. It may be good at eliminating hot
> spots
> in the head, but the overall heat capacity and heat transfer capability is
> lower than a thin antifreeze/water mix.
> Anyway, nobody believes me when I say your engine should be running about
> 45
> degrees advance while cruising down the highway. 32 or there abouts at WOT
> at 3000 RPM and above. (None-turbo that is!!!).
> This is the factory map for an 86-88 Audi 10V, 2.2L 5 cyl turbo engine.
> The
> combustion chambers and piston crowns are the same as any 8V with
> variations
> only in CR.
> If you have programmable ignition then this would be a good starting
> point.
> If your engine's NA then chop off anything above 1.01 bar.
> This map is virtually what I've been running with a 10:1 CR engine in the
> NA
> range.
>
> MAC11 Premium Fuel BTDC
> MAP
> 1.50 22 24 24 24 24 25 25 23 23 22 23 24 25 31 30 30
> 1.43 22 24 24 24 24 25 25 23 23 22 23 24 25 31 30 30
> 1.35 22 24 24 24 24 25 25 23 23 23 24 25 26 32 32 32
> 1.29 22 24 24 24 24 25 26 24 25 25 26 28 26 33 34 34
> 1.22 22 24 24 24 22 25 26 25 27 26 27 28 27 33 34 34
> 1.15 22 24 24 23 22 26 26 25 28 27 28 28 28 33 34 34
> 1.08 22 24 22 23 24 28 27 29 29 29 29 29 29 33 35 35
> 1.01 24 25 24 25 27 30 28 30 32 32 32 32 32 36 38 38
> 0.94 25 22 25 29 32 34 30 33 34 34 34 34 34 38 40 40
> 0.87 26 27 30 31 33 36 35 37 37 37 37 36 35 40 42 42
> 0.80 26 32 33 34 37 38 38 40 40 39 39 40 39 42 45 45
> 0.73 30 34 33 34 39 42 42 44 45 44 44 44 44 45 48 47
> 0.66 34 34 34 35 39 42 44 46 48 48 47 45 46 47 50 50
> 0.60 31 33 35 36 41 44 45 48 50 50 50 47 48 50 50 52
> 0.50 26 31 38 41 43 45 46 48 50 50 50 47 48 50 52 52
> 0.40 22 30 42 44 46 46 46 48 50 50 50 50 50 52 52 52
> RPM> 1000 1325 1675 2000 2375 2675 3000 3325 3675 4000 4325 4675 5000
> 5500 6000 6375
>
> As an additional note, I'd like to point out that if you're running a
> forced
> induction engine it's almost impossible to run too much advance under
> boost
> with 93 octane. Max power is attained just short of pinging in this
> situation.
> With a normally aspirated engine, especially a lower CR engine like the
> JH,
> you can advance the ignition past the point of maximum power without
> pinging.
> Course it will feel damn peppy at lower revs, but max power can suffer.
> Both NGP Racing and TT have told me that best ignition timing for an 8V is
> around 32 degrees at WOT for an NA engine which is pretty much what the
> above map shows at 1.0 bar absolute pressure.
> Last point. Higher CR obviously means less advance for maximum power for a
> given octane rating.
> my <.02
> Dan
>
>
> From: "Don Walter" <dswalterwi@gmail.com>
> Sent: Tuesday, July 19, 2005 3:37 PM
>
>
> I'm running Evans. I put it in when the system was completely empty during
> my rebuild. I have an extra gallon sitting around at $25.00/gal.
> I did not put in a special metal gasket, I am using the OEM from TT.
> I ripped out the entire CIS-E system including the knock box and computer
> and distributor and replaced it with a Electromotive TEC II.
> I am still running normally aspirated with no forced induction.
> I have an 8x8 grid for timing advance based on MAP and RPM's
> MAP
> 100 12 17 30 30 28 28 28 28
> 90 12 17 30 30 28 28 28 28
> 85 12 17 32 30 30 30 30 30
> 70 12 17 32 30 30 30 30 30
> 60 12 17 32 30 30 30 30 30
> 50 12 17 32 30 30 30 30 30
> 40 12 17 34 32 32 32 32 32
> 30 12 17 34 34 34 34 34 34
> RPM>816 1628 2440 3252 4064 4876 5688 7000
>
> On 7/19/05, David Utley <fahrvegnugen@cox.net> wrote:
> >
> > I would like to keep track so that if I have problems or questions later
> > on, I can ask directly instead of asking the whole list...
> >
> > Of those that are using it, what sort of FI/Ignition system do you have?
> I
> > am curious to know who has done what with CIS-E FI and the knock-box
> > Ignition. What basic advance do you run?
> >
> > Thanks for your time...
> >
> > David
> >
> > '83 GTI, Daily Driver...
> > '87 16V, parts car
> > '82 pickup, 2.0 16V, collecting dust...
> >
> >
> >
> >
> > _______________________________________________
> > Scirocco-l mailing list
> > Scirocco-l@scirocco.org
> > http://neubayern.net/mailman/listinfo/scirocco-l
> >
>
>
>
> --
> Don Walter - Waukesha, WI
> 1986 2.0L 16V TEC 2 Black Scirocco (see progress at
> http://www.cardomain.com/memberpage/708939)
> 1986 2L 16V Toronado Red Scirocco (under repair)
> 1988 1.8 16V Toronado Red Scirocco (sold on 3/29/04)
> 1984 1.8 8V Pewter Scirocco (sold years ago)
> 1971 Karman Ghia (sold)
> 1969 Karman Ghia (sold)
> 1969 Beetle (sold)
> _______________________________________________
> Scirocco-l mailing list
> Scirocco-l@scirocco.org
> http://neubayern.net/mailman/listinfo/scirocco-l
>
>
>
> _______________________________________________
> Scirocco-l mailing list
> Scirocco-l@scirocco.org
> http://neubayern.net/mailman/listinfo/scirocco-l
>



-- 
Don Walter - Waukesha, WI
1986 2.0L 16V TEC 2 Black Scirocco (see progress at
http://www.cardomain.com/memberpage/708939)
1986 2L 16V Toronado Red Scirocco (under repair)
1988 1.8 16V Toronado Red Scirocco (sold on 3/29/04)
1984 1.8 8V Pewter Scirocco (sold years ago)
1971 Karman Ghia (sold)
1969 Karman Ghia (sold)
1969 Beetle (sold)