Gotech management system

[vw1964type1]

OK so Scott Novak has convinced me to go with a higher than stock energy ignition.

Please can some of you answer my questions if you don't mind

Questions:

I am replacing the stock ignition because a "computer" controlled advance curve will allow me to get maximum HP at all revs as opposed to a standard dizzy which is normally set for full advance at 3000 to 3500RPM ie. The stock dizzy might not have a perfect advance curve. Am I right in saying this?

Also, how would one go about installing a computer controlled ignition? I was thinking that coil packs might be the way to go as I don't understand how using a dizzy in conjunction with the Gotech will work? Can somebody please explain this in english?

I am also thinking that I may want to upgrade to F.I and turbo at a later stage. The Gotech system can be used to actuate injectors, thus I would think that a $1000.00 spent on the system now to only manage ignition will save me money should I wish to also at a later stage incorporate the F.I.

Sorry, but we don't have Jacobs in my country so I am basically stuck with using Gotech.

Their web address is www.gotech.co.za

Thank you for any replies.

Brandt Theunissen
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2009 550 Spyder replica build in progress
2007 Mercedes ML550
2005 Mercedes SLK350

[The Noof]

D.I.S. is by far the most acurrate format,using coil packs or c.o.p.
Miniman has engineered a setup for his car.Maybe he will see this post.If not,p.m. him and he can fill you in.

[Dale M.]

Have you looked at Mega Jolt or Megs Squirt system for ignition control and Fuel injection?

http://www.bgsoflex.com/megasquirt.html

http://www.autosportlabs.net/Main_Page

Dale
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“Fear The Government That Wants To Take Your Guns"
"Kellison Sand Piper Roadster" For Street & Show.
"Joe Pody Sandrover" Buggy with 2180 for Autocross (Sold)
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All suggestions and advice are purely my own opinion. You are free to ignore them if you wish ...

[Marv [UK]]

[miniman82]

[Scott Novak]

Actually, using a the series connected dual terminal "Coil Packs" is a step backwards from a single ignition coil per cylinder. It fires one pair of spark plugs with reversed polarity that have a different arcover voltage. This will result in unequal ignition lag times and two of the cylinders will be running with slightly retarded ignition timing. It's a compromise economy ignition system.

Using a distributorless ignition system does NOT mean that you must forgo a high energy ignition system.

Jacobs made this ignition system for an 8 cylinder engine with 4 series connected coil paks in a wasted spark configuration.. However it can also be used on a 4 cylinder engine with 4 separate ignition coils in a non-wasted spark configuration for maximum performance. Or you can use two series connected coil paks in a wasted spark configuration.

But even if you don't use a Jacobs ignition system, there are a number of different ways that you can drive a separate ignition coil for each cylinder. It just depends on the ignition controller that you use.

The ignition coil that you use is extremely important to the performance of the ignition system, whether you are using one ignition coil per cylinder or one ignition coil pak for a pair of spark plugs in a series connected wasted spark configuration. A variable permeability ignition coil with an air gapped core is the only type of ignition coil that should be used, unless you just can't find them in your country.

While Miniman claims that high energy ignition systems won't make much improvement, he is also using an ignition system with a substantially higher energy output than the stock VW ignition system.

Distributorless means the voltage is not being distributed by a distributor. You can still use a conventional distributor as a trigger for an ignition system with electronic advance if you don't want to or aren't ready to set up a crank trigger. It is still a distributorless ignition system. You are just using the traditional distributor only as a timing device, not as a spark distributor. The distributor cap is only used as a cover to keep the elements out.

Some electronic ignition control units can be set up to use the distributor as a trigger. I don't think that the Go-Tech system can. You will need a multi-tooth reluctor wheel to trigger the GoTech.

The main advantages to using a distributorless ignition system is easy programming of the spark timing and the ability to use even larger spark plug gaps because you don't need to worry about crossfiring inside a distributor cap.

A good quality distributor can have the spark timing advance curve adjusted to be very close to ideal for full throttle acceleration. Adding a vacuum advance can have the spark timing curve very close to ideal at part throttle conditions.

A cold engine can run with more spark advance than a hot one. A good electronic advance system also has the capability to adjust the spark timing according to the engine temperature. It's also possible can also adjust for barometric pressure and altitude. You can also use a detonation sensor to adjust the spark timing. However, it is constantly hunting and varying the spark timing and isn't necessarily a better system.

There is a lot of extra complexity to using a programable electronic ignition control system. Unfortunately many of them also compromise the spark quality. I wouldn't consider using one unless I was also using a fuel injection system.

There are tradeoffs between using a distributor and an electronic ignition control system. It just depends on what features are more important to you.

Scott Novak

[Glenn]

Please pass the pop corn.
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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
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עַם יִשְׂרָאֵל חַי

[vw1964type1]

Thank you for the replies thus far.

I have a 2276 engine. At the moment it still has the carbs and stock ignition (009)dizzy We only get the 009 here.

Can the crank sensor be put onto the crank pully or must it be put onto the flywheel? Gotech states that you may use a distributor as a triggering device. Would this be sufficient?

Running individual coils sounds like a good idea. Has anyone got pictures to give me an idea as to how to install them. We don't have too many Ford vehicles here and those we do have are from England. However we do have lots of riceburners. Can anyone tell me which riceburner will have the coils I am looking for?
_________________
2009 550 Spyder replica build in progress
2007 Mercedes ML550
2005 Mercedes SLK350

[Scott Novak]

[RUI FARIA]

Go to www.aircooledvwsa.co.za there is some info on Gotech, one of the members "4agedub" sells the system as well as installations done on aircooled motors.
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42 year old technology & still kicking butt.

[Stripped66]

I gave a monkey a squirt bottle and trained him to squirt fuel into the intake ports...voila, fuel injection.

Currently, I'm training another monkey to strike a flint in the direction of the combustion chamber. If I get 3 more monkeys to do it, I should have the equivalent of coil-on-plug ignition.

You all suck.
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[Marv [UK]]

[Stripped66]

[Marv [UK]]

[Stripped66]

[Scott Novak]

deleted

[vw1964type1]

Thanks for the reply Scott, I will be seeing an expert on Gotech tommorrow morning

Stripped66, who shook your cage this morning? Maybe it was the monkey sleeping next to you(You know the one with the squirt bottle)?

Your uncalled for remarks really doesn't tell me much apart from the type of character you have.

Now piss off and go and feed your monkey.
_________________
2009 550 Spyder replica build in progress
2007 Mercedes ML550
2005 Mercedes SLK350

[Stripped66]