Ok, so I've grown very tired of the constant backfire from my car and the serious hesitation I'm getting at 5800-6200 rpms when running 17psi at the track. After talking to a few people about it and Dre of course, I've come to the conclusion that I'm going to have to upgrade my ignition system in order to solve these problems. As well as changing my plug gap a few other things. But what I'm trying to figure out now would be what type of ignition system would you all recommend? I've looked into the MSD's and their ignition sysytems are supposed to be the best and thats what I want. But I can't deside on a model that would be the best. I've heard of plenty of people running the 6A system... but they actually have a system degisned specifically for the turbo and supercharger applications. Its the 6BTM. Would this be better suited application or should I stick with the 6A like is commonly used on cars? Thanks again for the help guys. Just looking for pros and cons of the two and other personal preferences.

David

The BTM is just the regular 6 model with a boost dependant timing retard function. This is old school. You don't need this with a JWT ecu. FWIW I have the digital-6. It works really well... sitting on my coffee table! Hopefully I'll get around to hooking it up soon. I was pretty impressed with it after seeing it on Greg Perry's car.

I read that there were some misfire issues at low RPM, low load even with the MSD ignitions. This was caused by the MSD box not sensing the trigger 100% of the time. I read that some people were running the Crane ignitions. Anybody wanna shed some light on this? I'm still waiting to see if the people running Crane are having those same issues. Thanks.

As stated by Mike Kojima, the olny problems with the MSD ignitions were on the highport motors. I researched this alot. I am runnig a Digital 6, with a blaster 2 coil. I freakin love it. Everything is built into it. I would recommend this unit to anyone.

Alright then so as I figured the digital 6 is the best way to go. Now the next part to this. Finding a place that has one at a good and reasonable price. I'm hoping to have this issue resolved quickly. Should I go ahead and look into the blaster 2 coil while I'm at it... I feel the ignition upgrade should be sufficient, but the added thoroughness of the new coil would probably be a good idea.... All input is appreciated. Thanks all again.

David

59 min left at 9:15pm central time

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2414163174&category=33691

2 days

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2414441491&category=33691

you get my point;)

Awesome.... thanks a bunch.. I'm going to keep my eyes open for deals lke this on ebay in the future... hoping to get one of these in the next couple of weeks.

Like Jackson said...I freaking love the Digital 6 in my car. Calum did, too, and that was 30hp ago. ;)

Even with the upgrade to the 4-bar combo, as well as upping my boost psi, the D6 has kept everything in check, not missing a beat. I've also been able to run larger plug gaps than other SE-R owners running the same setup, minus the ignition. Go figure.

Mike K. likes the Crane units, and I'm sure he's got a boatload of data to back it up. Eventually, I might even try a Crane unit on one of my other cars, due to Mike's recommendations.

But so far, the D6 has fit the bill perfectly for my SE-R. If you drag race a lot (or just every now and then), the 2-step rev limiter (adjustable) is almost priceless for consistent launches.

Good luck, whatever route you choose.

Originally posted by Jackson Diamond
As stated by Mike Kojima, the olny problems with the MSD ignitions were on the highport motors. I researched this alot. I am runnig a Digital 6, with a blaster 2 coil. I freakin love it. Everything is built into it. I would recommend this unit to anyone.

Do you have instructins on how to install this setup? I have the instructions from JWT to do the MSD 6A, but don't have anything on doing the blaster coil too. Thanks. Looks like I may be going this route as long as it works well on the low port.

It's actually quite easy to install the aftermarket coils,personnally I rather the Blaster SS, anyways the fatter wire going into the stock coil is the +'ve and the smaller wire is the -'ve and these are the ones that will be used to the new coil, can't remeber the colours now.

My question is, after you hook up the blaster coil, how do you connect it to the factory cap? My understanding of this is that you cut the tab in the distributor to get the signal to go into the input of the MSD box. Then you connect the MSD box to the blaster coil. But how do you connect the coil to the cap from there? Remember, I have a low port engine which doesn't have a seperate coil.

I have the digital 6, but haven't installed it yet due to working out some gremlins I have with teh turbo install. anyway if you want I can email you the 3 images I have from JWT that shows the nissan distributor mod for msd ignitions. It's about 1mb of files.

I have those diagrams from JWT too, I'm talking about hooking up a blaster coil to the low port ignition setup. The blaster coil's "output" is a nipple like the ones on the cap that the plug wires hook up to. since there isn't an external coil, there isn't a nipple for a coil to be connected. See what I'm saying? I need to know how you hook up a coil to the low port ignition, not just the MSD box.

What needs to be done is go into the dist. cap and the trigger from the msd 6a is white and this needs to go to the cap with the 2 stock wires, why don't u just condemn the internal coil and get an external coil, almost very easy to do.