XIM COP, BB COP, distributer, what works best

[turbobitt]

An inductive system cant saturate the coil as much as a capacitive system can therefore will ultimately have more spark energy at the plug. The COP would need a capactive box for each coil and then I dont think you can take advantage of the prolonged burn with a capacitor which is an all of nothing once released. The benefit of an inductive system is the longer burn.

I havent looked at this info in awhile. I believe there have been some improvements in LSx coil tech. Also, the Holley/electromotive wastespark setups can produce some pretty good spark energy and have a longer burn cycle than a CDI box. Electromotive has claimed for years that they have the end all ignition system and they are the ones that designed the C3I for GM.

Seems like the biggest problem with forced induction is firing the plug at high cylinder pressures. I would guess that CDI would shine in this area. So question is how much is really needed and how much is overkill. To put it this way, the stock ignition is working already, so is COP a 2X improvement over waste spark ? or 3X, 4X ? If so is CDI 6X for example ?? Trying to get a feel for what will work but not be so overkill that its not really needed or worth the hassle.

Allan G.

 

[turbobuick]

Once you light it and burn it that is all you really need lol. Personally I think they are all capable of getting it done. When choosing an ignition set up I would look for the one that is going to give the most accurate and precise control of ignition timing and go from there. I think the stock ign module can become an issue on higher rpm set ups. Other factors come into play with building an ignition systems such as how your mgt system processes it and what type of crank trigger your using etc. I like the KISS principle of the distributor and CDI box and feel it is hard to beat.

 

[norbs]

Distributor cap is a wearing component COP has less moving parts. THe msd7al will put out more spark than the TR6 BTW.

 

[kidglok]

THe msd7al will put out more spark than the TR6 BTW.

It's like using a sledgehammer to kill an ant at that point.


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[turbobitt]

It's like using a sledgehammer to kill an ant at that point.


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This was kind of my intention of the original post is how big does the hammer need to be. Still partial to Cal's XIM COP.
AG .


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[SAMBALLS1]

This was kind of my intention of the original post is how big does the hammer need to be. Still partial to Cal's XIM COP.
AG .


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I was looking @ the instructions of both, bb Tr6 and xim and they both do exactly the same thing.. only difference in overall cost... tr6 is less expensive. Both do exactly the same thing... also looks like tr6 has more trouble shooting options like actual cam sensor setting amd error codes... didn't read any of that on xim..

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[turbobitt]

I was looking @ the instructions of both, bb Tr6 and xim and they both do exactly the same thing.. only difference in overall cost... tr6 is less expensive. Both do exactly the same thing... also looks like tr6 has more trouble shooting options like actual cam sensor setting amd error codes... didn't read any of that on xim..

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I wouldn't say TR6 does exactly the same thing. XIM has 3 step option that has some value to me and integrates with the XFI. As far as trouble shooting options are concerned I'm not buying something to expect problems and is not a really valuable feature for me. This doesn't mean that I wouldn't consider using it.

Allan G.

 

[SAMBALLS1]

Allen I agree... to each his own for needs...

In reference to cop LS2 Coils have made 1800hp... so it depends on user needs...

I believe cop is the way to go for precision.... I chose bb tr6 because I wanted to give the business to those who support buicks and Bob has done great things for us.... and I love the fact he a email or txt message away.... even on weekends.. that to ME is worth all the money

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[kidglok]

Sticky sticky sticky sticky

This forum needs more stickys

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[turbobitt]

Allen I agree... to each his own for needs...

In reference to cop LS2 Coils have made 1800hp... so it depends on user needs...

I believe cop is the way to go for precision.... I chose bb tr6 because I wanted to give the business to those who support buicks and Bob has done great things for us.... and I love the fact he a email or txt message away.... even on weekends.. that to ME is worth all the money

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I agree with the precision and maintainability. Less moving parts and no additional wear components over stock waste spark.
Allan G.

 

[SAMBALLS1]

I agree with the precision and maintainability. Less moving parts and no additional wear components over stock waste spark.
Allan G.

Maintainability could be questionable as u may have to replace coil from time to time....

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[TurboBob]

the troubleshooting in the TR6 is to troubleshoot the rest of the car. crank sensor missing, cam sensor missing or skipped time, blown fuse, that sort of thing.

Bob

 

[kidglok]

the troubleshooting in the TR6 is to troubleshoot the rest of the car. crank sensor missing, cam sensor missing or skipped time, blown fuse, that sort of thing.

Bob

what have you found with high rpm ignition timing consistency with a wastespark system? Would the brains of that be in the engine managment or the crank trigger style? or ignition module?

 

[lazaris]

This was kind of my intention of the original post is how big does the hammer need to be. Still partial to Cal's XIM COP.
AG .


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Alan,
Another benefit besides no rotor phasing issues with large timing changes would be individual cylinder timing control.

 

[rag231]

How important is individual cylinder timing control? ( Learning ) I know a little about being able to lean or fatten cylinders for a target AFR, and adjust duty cycles but I didn't know that you can affect the timing for each also. This is good stuff!

 

[kidglok]

How important is individual cylinder timing control? ( Learning ) I know a little about being able to lean or fatten cylinders for a target AFR, and adjust duty cycles but I didn't know that you can affect the timing for each also. This is good stuff!

For us probably not that important. "Staggered" timing was played with on v8's back in the day. They would retard cylinders 1/2/7/8, and advance the others.

 

[HighPSI]

As you start fine tuning, individual cylinder timing is very handy. The J&S unit will let you know where you want to be. Without individual timing, you can only run as much timing as the lowest cylinder will allow.


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[kidglok]

As you start fine tuning, individual cylinder timing is very handy. The J&S unit will let you know where you want to be. Without individual timing, you can only run as much timing as the lowest cylinder will allow.


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Tracking down the knocking cylinder is key, determining why it's knocking is the secret.


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[HighPSI]

It's not real complicated or mysterious. I tune on several cars with WBO2 & EGT on each cylinder along with a bunch of other data. You should expect to see individual cylinder fuel correction vs rpm in a future xfi flash. Unfortunately, just like individual cylinder timing, very few people can really take advantage of it

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[lazaris]

For us probably not that important. "Staggered" timing was played with on v8's back in the day. They would retard cylinders 1/2/7/8, and advance the others.

I would not say its not that important. If a cylinder is running hotter than the others you could pull timing to keep it from detonating. For many reasons most engines the V-6 included do not run with balanced cylinders. If you can read the plugs you can quickly determine the hotter holes and adjust accordingly.