Another successful LS1 coil swap

Post by **legit240sx** » Tue Jul 07, 2009 7:52 am

got it thanks

Post by **rb25det250sx** » Wed Jul 08, 2009 10:48 am

WOW perty imprssive info. good to know there are people to do that kind of detailed work. Thanks guys, this will deff help in the future. nice job with the swap to BTW!!

Post by **Sil240** » Thu Jan 28, 2010 1:59 pm

http://forums.corvetteforum.co....html

Here are the Dwell tables for :

2001 C5 Corvette LS2

2004 Silverado 5.3 LS2 Truck coil

Post by **Darius** » Thu Jan 28, 2010 2:20 pm

Nice find!

Post by **Sil240** » Tue Mar 23, 2010 4:50 am

Darius- Or anyone else running LS2/LS2 Truck coils

Could you please post up your Dwell Tables???

Carl is burning a chip for me and he needs the Dwell table.I've already sent him the Tables for the Silverado that I posted earlier.Not sure if he needs RB with LS2 coil Dwell tables???

Post by **240z4u** » Tue Mar 23, 2010 4:52 am

I haven't touched the dwell yet.

Post by **Sil240** » Tue Mar 23, 2010 5:54 am

Oh yeah...

What were the specs of the T3/To4E you were running?

In another thread you said you were having surging problems?

Website · Post by **meet07** » Fri Mar 26, 2010 12:21 am

Sil240 wrote:http://forums.corvetteforum.co....html

Here are the Dwell tables for :

2001 C5 Corvette LS2

2004 Silverado 5.3 LS2 Truck coil

So what does this dwell chart mean? I know the longer they charger the better the spark.

Post by **Sil240** » Fri Mar 26, 2010 2:46 am

To tell you the truth, I don't exactly know.

But from what I've been reading and been told.It seems its the table of how much time (Milliseconds) the coil has to charge up before it fires at "X" Voltage vs "Y" RPM

I'm guessing that as RPM goes up, you have less time to charge.As voltage goes up, you'll need less time to charge

If that's wrong, someone please correct me!!

Post by **240z4u** » Fri Mar 26, 2010 2:50 am

You are over simplifying when you say "longer charge = more spark". This is true to an extent. Generally there is a plateau where the spark doesn't get any stronger and then you are basically just heating the coil up. Not good. Shortened lifespan of the coil is the result.

Yes, dwell is charge time for the coil listed in MS.

There is less time at higher RPMs to charge them (obviously, as you stated).

Post by **raremotive** » Fri Mar 26, 2010 6:57 am

That posted thread is a sad read really. There's zero recognition of charge developed during dwell time and it's release as the good info givers have given, the whole thread has been trashed.

Website · Post by **meet07** » Fri Mar 26, 2010 11:12 am

Rare_f8 wrote:That posted thread is a sad read really. There's zero recognition of charge developed during dwell time and it's release as the good info givers have given, the whole thread has been trashed.

I disagree!! This thread has not been trashed?

Post by **Sil240** » Fri Mar 26, 2010 11:21 am

I would assume that he's talking about the thread that I posted.The GM Chevy thread.

Post by **raremotive** » Fri Mar 26, 2010 4:47 pm

meet07 wrote:
I disagree!! This thread has not been trashed?

Sil240 wrote:I would assume that he's talking about the thread that I posted.The GM Chevy thread.

,

sorry I was not clear/distinctive.
Modified by Rare_f8 at 7:59 PM 3/26/2010

Post by **OutToWinPAHC** » Fri Mar 09, 2012 6:27 am

Okay reading this, I am new to power FC... And I need help setting the dwell in datalogit. Does anyone have their setting for truck coils for this?

Post by **240z4u** » Fri Mar 09, 2012 10:27 am

I am still running stock dwell actually, I never changed it!

Post by **OutToWinPAHC** » Fri Mar 09, 2012 11:15 am

Yeah I just dont know how to use the info from the table above to convert to what this image says. I dont now the formula or correlation.

This is not my screenshot

Post by **240z4u** » Fri Mar 09, 2012 12:59 pm

I haven't had any spark problems at stock dwell, so I am not gonna mess with it.

Post by **OutToWinPAHC** » Sat Mar 10, 2012 7:36 am

Yeah but all these are is transistors and I would like to make the gate signal timing correct. I was hoping someone can help me witht he conversion to what power FC uses.

Post by **lexcrob** » Wed Jan 30, 2013 9:22 pm

dead thread sorry BUT OMFG YOU GUYS ARE FRIKEN WIZARDS

I have new respect for rb owners reading all that makes me want to stick with mine now. Just when I was gonna sell out new motivation.

Post by **S14-NEO** » Thu Jan 31, 2013 5:17 am

I posted up the conversion formula on a thread last year about adjustment of the dwell on the power FC

adjusting-the-dwell-on-a-power-fc-t564212.html

Its near the bottem...hope this helps!!!

Post by **240z4u** » Thu Jan 31, 2013 1:15 pm

Great spot for that link!

Post by **lexcrob** » Wed Feb 06, 2013 2:04 pm

I VOTE STICKY THIS THREAD ^^^^^^^^^^^^^^^^^^^^^^^

Post by **Saavedro88** » Thu Feb 04, 2016 9:07 am

Bumping up this old dead thread, I'm looking to swap some LS2 truck ignition coils into my red top RB20, I see a lot of information about making sure the dwell is adjusted, etc, etc, however I have no way to control this on the red top system, there is no aftermarket support for my ECU (can't be reflashed). If I install the coils just as they are, will I have any issues with running the vehicle with the OEM dwell? Thank you in advance for the help.

Post by **Yellow4g63** » Fri Feb 05, 2016 9:47 pm

It will run fine at the OEM dwell, your stock ecu will throw a ignition code since you are getting rid of the ignitor.

Post by **Saavedro88** » Fri Feb 05, 2016 10:21 pm

Great to hear, thank you very much!

Another successful LS1 coil swap

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