Spark 'booster' (PNP circuit)

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Spark 'booster' (PNP circuit)

Postby eMTea » Wed Nov 14, 2012 11:08 am

Hi James, do you have more of these available?
-MS3X, (V3 PCB) 1.2 RC 1 firmware. Controlling a light modified Audi 1.8TQ AEB 20v engine with Holset HE221W turbo, 299.4 HP and 400Nm at the hubs in Dynapack.
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Re: Spark 'booster' (PNP circuit)

Postby jsmcortina » Wed Nov 14, 2012 6:59 pm

Yes, please send a PM or email.

James
I can supply, repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

My Success story: viewtopic.php?f=104&t=34277
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Re: Spark 'booster' (PNP circuit)

Postby R100RT » Thu Nov 15, 2012 7:24 am

Search altered.
Last edited by R100RT on Mon Nov 19, 2012 6:51 am, edited 1 time in total.
1983 BMW R100RT Bike
Turbocharged - Water Injection
Sequential Ignition is great
"Perky Sleeper"
New toy - 1995 BMW K75 is on "The Mod Table", another V2 vintage Microsquirt kit'n caboodle ready to add, turbocharger in process, all the "usual suspects"
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Re: Spark 'booster' (PNP circuit)

Postby jsmcortina » Thu Nov 15, 2012 8:27 am

R100RT wrote:James, are you still offering these, if so are you offering these mounted into the case as shown in previous post?

They didn't sell out overnight, so yes. (humour.)

The case is http://uk.farnell.com/multicomp/g1013/box-abs-65x38x27mm/dp/1526713?Ntt=1526713

James
I can supply, repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

My Success story: viewtopic.php?f=104&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
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Re: Spark 'booster' (PNP circuit)

Postby R100RT » Thu Nov 15, 2012 1:07 pm

Info search altered
Last edited by R100RT on Mon Nov 19, 2012 6:42 am, edited 1 time in total.
1983 BMW R100RT Bike
Turbocharged - Water Injection
Sequential Ignition is great
"Perky Sleeper"
New toy - 1995 BMW K75 is on "The Mod Table", another V2 vintage Microsquirt kit'n caboodle ready to add, turbocharger in process, all the "usual suspects"
R100RT
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Re: Spark 'booster' (PNP circuit)

Postby BMWR100RT » Sat Nov 17, 2012 3:39 pm

Info search altered
Last edited by BMWR100RT on Mon Nov 19, 2012 6:48 am, edited 2 times in total.
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Re: Spark 'booster' (PNP circuit)

Postby BMWR100RT » Sun Nov 18, 2012 7:13 pm

Dito
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Re: Spark 'booster' (PNP circuit)

Postby dfzuntor » Tue Jan 01, 2013 9:41 am

Does anyone have used this circuit on Subaru EJ25 cops?
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Re: Spark 'booster' (PNP circuit)

Postby jsmcortina » Tue Jan 01, 2013 12:06 pm

R100RT wrote:Search altered.

What do you mean?

James
I can supply, repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

My Success story: viewtopic.php?f=104&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
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Re: Spark 'booster' (PNP circuit)

Postby R100RT » Wed Jan 02, 2013 8:03 am

Once in a while, a nobish persuit leads one in the wrong direction on these forums. The spark booster fulfills a specific requirement and I just needed to gain a tad more detail on things to learn I would not require it - wish I could have gotten there sooner and don't like leaving a path of confusion behind me.
Not having the ability to remove a post, I edited my non applicable comments.
If this offends, please accept my appologizes.
Lorne.
1983 BMW R100RT Bike
Turbocharged - Water Injection
Sequential Ignition is great
"Perky Sleeper"
New toy - 1995 BMW K75 is on "The Mod Table", another V2 vintage Microsquirt kit'n caboodle ready to add, turbocharger in process, all the "usual suspects"
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Re: Spark 'booster' (PNP circuit)

Postby Anders K » Sun Jan 27, 2013 11:59 am

Hi.

I have tested a positive Cop driver whit IR4427, and it works great at VAG Cops.

Anders
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Re: Spark 'booster' (PNP circuit)

Postby jsmcortina » Sun Jan 27, 2013 12:12 pm

I'm sure that can work, but there's no short circuit protection. The parts are more expensive than the discrete transistor version.

James
I can supply, repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

My Success story: viewtopic.php?f=104&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
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Re: Spark 'booster' (PNP circuit)

Postby Sir Humpalot » Mon Feb 11, 2013 9:23 am

James,

After installing the Spark Booster and everything seem to work. The engine can rev to 7000RPM with is considered high for a 1UZ.

However, sudden the engine hesitate to rev over 4000RPM and run very lean, but it seems to come and go.

Can you help and have a look at my MSQ and datalog file?
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Re: Spark 'booster' (PNP circuit)

Postby juansh2385 » Mon Mar 04, 2013 7:37 pm

James does the booster circuit work with vag cops that have 1.5k+ resistance between pin 2 and 3? My car right know is running with ground switching method of the manual. but I am planing on changing cops and would like to have a more universal set up that work with any vag coil.

Juan
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Re: Spark 'booster' (PNP circuit)

Postby kjb » Sun Jun 09, 2013 6:01 am

Are these still available?
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Re: Spark 'booster' (PNP circuit)

Postby jsmcortina » Mon Jun 10, 2013 10:06 am

Yes, still for sale. Prices as above.

James
I can supply, repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

My Success story: viewtopic.php?f=104&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
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Re: Spark 'booster' (PNP circuit)

Postby jsmcortina » Tue Aug 13, 2013 2:31 pm

Still available...
I can supply, repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

My Success story: viewtopic.php?f=104&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
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Re: Spark 'booster' (PNP circuit)

Postby Ryanr » Fri Oct 11, 2013 1:28 am

James, I'd like to buy one of these but do not have PM privileges yet and can't seem to locate your email. What is the best way to place an order? Thank you.
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Re: Spark 'booster' (PNP circuit)

Postby weeblebiker » Tue Nov 12, 2013 9:58 am

Anders K wrote:Hi.

I have tested a positive Cop driver whit IR4427, and it works great at VAG Cops.

Anders


I'm confused in my nievety, the ir4427 is a low side mosfet driver. shouldn't a high side driver like the TPS2812 be used to drive 5v from the ms board vcc out to the vag coil?

figured out the nomenclature confusion a "low side driver" drives a fet/igbt that is in the low side position to the load (driver outputs a high signal), not outputting a low side signal to a fet/igbt
Last edited by weeblebiker on Fri Nov 15, 2013 2:07 pm, edited 1 time in total.
v2.2 box, ms2, dual wheel, sequential ignition, staged injection, boost control, maf
'87 VW scirocco, 2L16V, TD0-14T turbo, itbs
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Re: Spark 'booster' (PNP circuit)

Postby piledriver » Tue Nov 12, 2013 5:12 pm

Folks are actually trying to use VAG COPs?
IMHO they are horrible pieces of junk.
(Nothing wrong with this driver board, it's the VAG COPS at issue)

They are generally considered "10K" units as that is how many miles they tend to last if you are lucky.
This includes new replacements.
Many folks in the VW community go to extreme lengths to replace them: Direct "HD" aftermarket replacements are very expensive.
Google/search a bit on vwvortex and the Audi boards...

You have been warned, there are many far better options.
Always doing things the hard way, MS2 sequential w/ v1.01 mainboard, LS2 coils. 80 mile/day commuter status.
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