What are your thoughts about this unit for replacing the stock dist. on my 1977 Vette. I was going to replace it for use on my new 400, and found this one. Good price, but is it a bad product? Is 65K volts too much for my stock ignition system? Is it a good idea to buy this distributor when replacing my stock one?

http://cgi.ebay.com/ebaymotors/ws/eB...MakeTrack=true

 

He has a buy it now price of 45 bucks and has 10-15 listed. For 45 bucks, it might be worth trying. Probably made in China.

 

A reman unit from Oreilly is $99.99 plus a $40 core. Big difference over $45, but what's the quality difference between this new one and a reman unit?

 

I like dealing with places that have returns and warranties just to take care of those quality problems.

 

I emailed the seller and asked about who makes it and their warranty, I'll post when I get an answer to that.

Edit: He responded within twenty minutes of the question, stating yes, it comes with a 1 year warranty through Sysonic, of the USA.

Sounds a little better than "Made in China."

 

Your stock HEI is probably better than the ebay item.

If it were my build, I would keep your '77 distributor and install an MSD coil and matching MSD module. The ebay distributor you are looking at is lacking specs to justify a purchase for me.

Spark energy is what lights the fire, not the 65k advertised spark voltage. Energy comes from the ignition module current (no amperage specs), the coil just stores the energy for every firing and replenishes the energy from your 12 volt system.

A true high performance coil will advertise saturation rate or recharge time as opposed to voltage. Hi-po coils have different windings which reduces the time it takes to light the next fire. the faster the recovery time the better the performance and rpm range. Some might say it's always better to have higher voltage available if needed.

A true high performance module will draw 7-7.5 amps (stock GM is 4-5 amps). The module must always be matched to the coil for best drivability and performance. If a hi-po coil is used with a standard module, the module could overheat and fail. If you reverse that scenario, there will be no performance gain.

You don't know what parts are in the ebay distributor, so there is risk involved from a performance standpoint as well as reliability. You can email the seller, but he should be putting the required specs in his ad willingly unless there is something to hide.

Just my .02

 

If it sounds too good to be true, it probably is. $45 for a new quality distributer sounds too good to be true. I agree with the above poster, that it's made in China.

 

Bought one a while ago and it works well.
Worth every penny of the 45 bucks.
Just put a little grease under the weight and in the pivots.

 

Is it the same Dist. as the one in the pic...this one "looks" identical to the Mallory listed in Summit for $145.

 

From what is avalable on the net: Sysonic USA Inc. was an exibitor at the 2006 SEMA show. Their website: www.sysonicusa.com, Main phone(626) 369-7040, Fax(626) 369-8040, Address:137 S. 8th Ave. Unit #1 La Puente, CA 91746....................... Hope this helps.

 

I bought a $69 distributor over a year ago.... works fine.

At the time it was about $100 cheaper than Summit/Jegs a.s.o...... to be honest I was very surprised that the engine started with that thing

 

I contacted the company via email, as their website has no other techincal info other than what's listed on the Ebay auction. I will probably buy one anyway, maybe even as a good test. If and when they get back tio me I will post any new data regarding it's components.

 

ttt

 

No responce back yet, but I assume it's a fairly good quality product...made in USE and presented at SEMA. I know you get what you pay for, but this is for a street car with limited high RPM use.

 

I have one in my 383 500 miles and no issues.

 

I'm sure these distributors work as well as a stock HEI. My point is Durango already has a stock HEI and since there is no data available to support a performance advantage on the Sysonic web site, why spend the money? Is it just for looks?

 

Actually I don't like the color, but the stock one is not 100%. It's is or will be in need of replacing within a year or so. I can feel the shaft wiggling and tightening at the same time.

I must admit I like the look of the 'hat' that covers the boots of the plug wires, and the red color will match my wires better than the black one I have.

 

I bought one last winter for mine but have not installed it yet as im still
collecting parts for the job.

i will tell you that i asked Lars about this unit and sent him the link,
his opinion was that it was well worth the money and thats when it
was going for $80 shipped not the $45 they are getting now.

his only suggestion was to swap the adjustable vacuum advance
out for the one of the NAPA units he recommends
( sorry i cant remember the part number at this time)
needless to say it was swapped a week later because Lars is the MAN

 

Please try to find that link or an old email from Lars, as I have one on the way and will want to change the vac advance too. Thanks.

 

I would agree (hard to disagree with most of what Lars says... )
that you should at least change out the adjustable vacuum can.
What can you need for YOUR motor is really going to depend on the vacuum level your own motor produces. If you don't know already, simply get a vacuum level reading at idle and find a can that matches what you need in terms of amount of advance and the required vacuum level. You want a can that supplies the total amount of vacuum advance at a level 2" below the amount of vacuum your motor is producing at idle.