[T3] Mega Questions

Tue Nov 6 16:39:37 PST 2012

Still fairly pricy but this is going to be my test run if it works out well then I will be looking to do it to my 74 Bug that I built as a teen for drag racing in Arizona and am slowly going through and fixing all the stupid things I did as a teen to it then. 

Daniel Du Vall
http://1peter4-10.org
http://volkswageninsanity.us

-----Original Message-----
From: type3-vwtype3.org-bounces at lists.vwtype3.org [mailto:type3-vwtype3.org-bounces at lists.vwtype3.org] On Behalf Of Keith Park
Sent: Tuesday, November 06, 2012 5:18 PM
To: type3 at vwtype3.org
Subject: Re: [T3] Mega Questions

Sorry, I was not clear. 
Not expecting it to run cooler but would expect a 1600 to run cooler than a
1915 in one of these without added oil coolers etc.

Yes, it will... the 1915 will need a cooler!

As far as the increase in power I am not expecting much if any but am expecting better performance over the worn out weber carbs that are currently on it.

It will be better than having NEW webers on it, but so will the  stock FI.

I received this 72SB not running and with a set of VERY used carbs on it and as some are fans of carbs I am not and prefer fuel injection of the more modern kind.
I do know that if you manage the fuel air better you will see some increase in power and drivability. The carbs on mine are definitely no doing that well at all.

Yea, the Webers are not a good choice, its also possible to tune up the Djet MUCH better than stock, but maximum HP wont change, but the learning curve with tuning Djet is steep.

I do respect the factory FI its an amazing bit of engineering and  far ahead of its time. But since mine was missing all of it I feel ok in moving to something a bit more modern but still utilizing some of the older components. I love to tinker and this is a great opportunity for me to get some tinkering on. 

Yea, if you missing all the OEM FI then maybe the Megasquirt makes sense...
but last I remember it was pretty pricey.

Keith

Daniel Du Vall
http://1peter4-10.org
http://volkswageninsanity.us

-----Original Message-----
From: type3-vwtype3.org-bounces at lists.vwtype3.org
[mailto:type3-vwtype3.org-bounces at lists.vwtype3.org] On Behalf Of Keith Park
Sent: Monday, November 05, 2012 9:01 PM
To: type3 at vwtype3.org
Subject: Re: [T3] Mega Questions

Well im afraid that you cant increase the HP any by adding megasquirt to a stock engine, its going to be a huge waste of money over using the stock D jet.  Not sure why you would think it would run cooler too? These engines need a very specific mixture, too lean and they run too hot, too rich and they dilute their oil.

Now with the 1915... THEN you can taylor the mixture more easily than using stock D jet, but even Djet can be adjusted if you really understand how it works and instrument it.

If your stock 1600 isnt running right, start with getting the Djet working properly, there is a lot of expertise here to help with that.  You might really like it!

Keith

Top Notch Restorations
topnotch at nycap.rr.com
http://www.a383ina68.addr.com/radiorest/main.htm
71 Squareback "Hothe"
65 Notchback "El Baja Rojo"
65 Squareback "Eggcrate"
87 golf "Winterat"
93 RX7 "Redstur"

-----Original Message-----
From: type3-vwtype3.org-bounces at lists.vwtype3.org
[mailto:type3-vwtype3.org-bounces at lists.vwtype3.org] On Behalf Of Daniel K.
Du Vall
Sent: Monday, November 05, 2012 9:26 PM
To: type3 at vwtype3.org
Subject: Re: [T3] Mega Questions

Right now is stock 1600
Down the road not sure depends on how this feels after this mod. 
I have a 1915 I built for my bug but its not a type3 case wise and I love how it feels in the bug. 
So if the 1600 needs help down the read I will help it ;-) Part of me wants to see how good I can get the 1600 to run and feel power wise first.
Aside from that fact it will run cooler than anything I upgrade too with out having to add all them extra cooling devices ;-)

Daniel Du Vall
http://1peter4-10.org
http://volkswageninsanity.us

-----Original Message-----
From: type3-vwtype3.org-bounces at lists.vwtype3.org
[mailto:type3-vwtype3.org-bounces at lists.vwtype3.org] On Behalf Of Keith Park
Sent: Monday, November 05, 2012 6:03 PM
To: type3 at vwtype3.org
Subject: Re: [T3] Mega Questions

What size engine are you working on??

Keith

Top Notch Restorations
topnotch at nycap.rr.com
http://www.a383ina68.addr.com/radiorest/main.htm
71 Squareback "Hothe"
65 Notchback "El Baja Rojo"
65 Squareback "Eggcrate"
87 golf "Winterat"
93 RX7 "Redstur"

-----Original Message-----
From: type3-vwtype3.org-bounces at lists.vwtype3.org
[mailto:type3-vwtype3.org-bounces at lists.vwtype3.org] On Behalf Of Daniel K.
Du Vall
Sent: Sunday, November 04, 2012 10:56 PM
To: type3 at vwtype3.org
Subject: [T3] Mega Questions

I have begun again to do my research on building a MegaSquirt controlled factory looking type 3 EFI system for my 72 SB.
I am using MAX's site and some of my own schooling to go through the development but have a few questions for the factory FI experts around here.

Question 1: If using the stock injectors what is the optimum fuel pressure required to maintain the best spray pattern for these injectors?
Question 2: if I was to say use the original under dash really systems that controlled the power of the original FI brain etc. how hard are the components to come by? Or should I just invest in the system offered by:
http://www.diyautotune.com/catalog/megasquirt-relay-board-assembled-unit-p-3
2.html

I am sure as I progress through the process I will have more questions but for now I am just getting a list of components together and gathering information so that I can spec the correct parts. I have the basics of the factory FI system that were provided by Mike Fisher and I realize I will probably need to purchase some new injectors from Jim Adney as I understand that the ones I have are probably failed from sitting dry. But for now any and all input will be greatly appreciated.

Thanks much,

Daniel Du Vall
http://1peter4-10.org<http://1peter4-10.org/>
http://volkswageninsanity.us<http://volkswageninsanity.us/>

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