MagnaSpark II

We'll all be waiting to hear how it goes! I've heard great things (here, on the Samba and other sites) about the Magnaspark II. Al

PS- can you refresh our memories as to engine specs (or even better, giving us the link to the build thread)?

A lot of members here are using the MagnaSpark dizzies. Pat comes on here occasionally to help people out with technical stuff. He has built A LOT of the motors used bay our members. CB Performance builds the majority of the motors for Special Edition and he's been helping Greg Leach at Vintage Motorcars.

I ran an original Magna Spark from the 1990s until this past Spring when I installed a Magna Spark II.   The original was always a good unit, but it was getting on in years and was hard to find advance springs for so I made the switch.  

So far, the new version has been all they said it was in the marketing hype.  I also ran it on a Sun Distributor tester for a while and the curve was smooth and no spark bounce noted from 500 engine rpm all the way to 7 grand.  

Nicely designed and very nicely made.

ALB posted:

We'll all be waiting to hear how it goes! I've heard great things (here, on the Samba and other sites) about the Magnaspark II. Al

PS- can you refresh our memories as to engine specs (or even better, giving us the link to the build thread)?

@ALB, the original post I did for the motor build kind of went sideways so I didn't make any updates.

The motor crankcase has a stock crankshaft and camshaft, it's a 1776cc motor, MAHLE 90.5 pistons. The heads were fly cut  machined by Brother's VW Machine Shop down in Ontario, CA. It was port(s) matched to the original Kadron 40/44EIS dual carburetors it has with, 3/4" spark plugs, 12mm, 3 angle valve grind.  

I'm now installing a set of dual Weber 40 IDF carbs and the MagnaSpark II distributor setup. I also have a set of dual EMPI's carbs but decided not use them. 

Once I get this motor running properly I plan on building a second motor just like it. (I'm looking for an AS41 case if you know of anyone selling one). I'm going to install the 2nd motor into my 67' bus. 

Here's a couple of blogs I have. It helps me document what I've done to my rides. I've done this since 1995, before that pencil and notepad. 

www.vdubuslife.com

www.speedster.life

I have a question! 

I'm wanting to install the tin sleds that are below the engine. I currently have J-tubes and Miller dual exhaust so no heater boxes. How do you mount the side that is not attached to the crank case? 

Also, what breather box do you recommend? 

Thank you for any input you can provide!

Robert M posted:

A lot of members here are using the MagnaSpark dizzies. Pat comes on here occasionally to help people out with technical stuff. He has built A LOT of the motors used bay our members. CB Performance builds the majority of the motors for Special Edition and he's been helping Greg Leach at Vintage Motorcars.

Good to know! I got the parts in today. I may start tomorrow night. 

Do the local Speedster owners ever have a tech day/night? I used to host different gatherings for other rides and motorcycles. Great times for sure. 

@vdubuslife wrote- "I'm wanting to install the tin sleds that are below the engine. I currently have J-tubes and Miller dual exhaust so no heater boxes. How do you mount the side that is not attached to the crank case?" 

The heater boxes are replaced with 'industrial tins' that keep the spent cooling air flowing out behind the engine. Gene Berg Ent. and I think Aircooled.net sell them or you can bend up a set yourself. More on breathers in the morning... Al

PS- Have you thought of putting 1.4 ratio rockers on the Speedster engine? They will give it a little more power!

Another PS- I checked out the first page of your Speedster blog- you have way more patience than I do for chronicling everything step by step!

I made a pair of lower cooling “sleds” from Al’s templates and they work great.  I live in New England and drive in colder weather so wanted to manage output air better.  These do the trick.

Made templates from his drawings out of file folder cardboard and then mounted the templates to the engine and tweeked them here and there to make them fit, then used the cardboard for the outline, bend points and hole locations applied to HVAC sheet metal for the real sleds.  

ALB posted:

@vdubuslife wrote- "I'm wanting to install the tin sleds that are below the engine. I currently have J-tubes and Miller dual exhaust so no heater boxes. How do you mount the side that is not attached to the crank case?" 

The heater boxes are replaced with 'industrial tins' that keep the spent cooling air flowing out behind the engine. Gene Berg Ent. and I think Aircooled.net sell them or you can bend up a set yourself. More on breathers in the morning... Al

PS- Have you thought of putting 1.4 ratio rockers on the Speedster engine? They will give it a little more power!

Another PS- I checked out the first page of your Speedster blog- you have way more patience than I do for chronicling everything step by step!

Thank you @ALB. I downloaded your drawing and will look into this. I did consider 1.4:1 initially but sort of went to the wayside. On my 2nd 1776 motor I'll give it another consideration. 

I see where the tin connects to the side of the crank case but I don't see where the bolts across attach. Are there 4 mounting points or 2? 

I read a 1973 Type 181 (Thing) had VW tins that can accommodate no heater boxes/J-tube configurations. I'll be going to the local Bugorama show Sunday, hopefully I can find something. If not, I have your drawing for reference. 

Here's the link to the lower sled tin discussion:

https://www.thesamba.com/vw/fo...ewtopic.php?t=401943

Oh! I'll check out the other vendor links you provided too! 

Found another vendor but site indicates the part is out of stock.

https://www.shop.kaddieshack.c...KS-IndustrialTin.htm

I installed the latest Magnaspark dizzy with the coil pack and wires earlier this year on my 2276 type 1. It's been great. Very smooth. I like it a lot. Best upgrade so far.

My POS Chinese tach doesn't like it though. When I quickly spool up my engine, the needle just keeps on going, sometimes bouncing from max and back. I know I'm not revving that high. If I spool up slowly, it tracks accurately, or as accurately as it can be.

Is anyone else experiencing this? Should I move a new gauge set farther up my need-to-do list?

Thanks, CG.

@Carlos G, you might need a tach adapter.  I had the same problem when I installed an ignition box.

https://www.holley.com/product..._adapters/parts/8920

http://www.ashlocktech.com/

This guy developed the tach adapt for the Porsche community (nice multi-year thread on Pelican as he develops it and takes it into a business). 

Cool, thanks guys.

I was going to suggest that tach adapter as well.

I built my own aluminum sled tins for my Spyder, but they run the other way from rear engine guys, dumping the air towards the trans. My J-tubes run directly under the cylinders, so a hole in the front of the tin was needed. I modified a couple valve cover bails to fix the head edge, and made a couple tabs to attach to the case. Dropped my oil and cylinder head temps by 10 degrees F. The curved aluminum tucks in tightly behind the fiberglass 911 shroud.

Carlos I have the same ignition and tach and it works fine. I’m just wondering if I have the Magnaspark I or II.  How can you tell the diff?

The original Magna Spark looked just like a stock VW distributor with the stock-style disti cap and wires.  The disti itself is machined from a steel casting and has a cap of roughly 3-1/2”.

The Magna Spark II has a much larger diameter disti machined from billet aluminum.  The disti cap is roughly the diameter of the palm of your hand (4-1/2”) and has snap-in HEI plug wire connectors.

The most noticeable difference is the billet aluminum housing.

I have run both the original and MS II on my mid-1990s Chinese VDO knockoff tach with no problems on either but I can’t speak to any of the newer tach units.

Thanks Gordon. I have the MS II. Never any problems with it and the Chinese VDO tach works fine.

vdubuslife posted:

Found another vendor but site indicates the part is out of stock.

https://www.shop.kaddieshack.c...KS-IndustrialTin.htm

 

Gene Berg Ent. has them for $8 per side-

http://www.geneberg.com/advanc...57f1&x=8&y=6

ALB posted:

vdubuslife posted:

Found another vendor but site indicates the part is out of stock.

https://www.shop.kaddieshack.c...KS-IndustrialTin.htm

 

Gene Berg Ent. has them for $8 per side-

http://www.geneberg.com/advanc...57f1&x=8&y=6

Thank you, I’ll give a look see.