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whats you thoughts on spark

 
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p2164
Newly Aquired


Joined: 27 Apr 2008
Posts: 15
Location: MISSOURI
PostPosted: Wed Apr 30, 2008 12:02 pm    Post subject: whats you thoughts on spark Reply with quote
I am curious on everyone's thoughts on the ignition part of electromotive? For all you forced induction people has it be adequate? I am not talking about the programing part just the coils and there spark potential.
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Jon@EMI
EMI


Joined: 26 Feb 2008
Posts: 144
Location: Manassas, VA
PostPosted: Wed Apr 30, 2008 1:35 pm    Post subject: Reply with quote
Ignition is what we do best. Go to the page in my signature and check out the rides section. The tractor puller listed first runs alcohol and 96 PSI boost. And it runs better than it ever did with the MSD it replaced.

You might also check out Nelson Racing Engines . His turbo engines generally start at 1000HP.
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Project Engineer
Electromotive, Inc
jon at emi.cc
www.distributorless.com
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TimZ
founding member


Joined: 25 Feb 2008
Posts: 120
Location: Dearborn, Michigan
PostPosted: Wed Apr 30, 2008 4:04 pm    Post subject: Reply with quote
Jon@EMI wrote:
Ignition is what we do best. Go to the page in my signature and check out the rides section. The tractor puller listed first runs alcohol and 96 PSI boost. And it runs better than it ever did with the MSD it replaced.

You might also check out Nelson Racing Engines . His turbo engines generally start at 1000HP.


I'd have to agree - 26psi on pump gas and never a problem with the TEC2 or the TEC3. The TEC2 is particular about what plugs/wires you use, but that's more of an EMI issue with the processor's proximity to the coils.
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Knowledge is not wisdom
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nefarious
Site Owner


Joined: 19 Feb 2008
Posts: 148
Location: Everywhere In, FL
PostPosted: Wed Apr 30, 2008 4:58 pm    Post subject: Reply with quote
+1

20-25 lbs on 91 octane, the ignition system is the last of my worries for my tec2's
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97' Saturn SC2-Turbo
TEC2 + T3/T4 + FMIC
once again under construction
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p2164
Newly Aquired


Joined: 27 Apr 2008
Posts: 15
Location: MISSOURI
PostPosted: Thu May 01, 2008 11:02 am    Post subject: Reply with quote
So no one has fouled a plug? I am not sure on TEC 3 as I do not have one but on the old units when you foul one you loose 2, on a 4 banger thats half. I found a considerable difference in going with a MSD DIS4 unit and single coil per cylinder on my turbo cars. I suppose if my program were to be right on the money then I wouldn't foul plugs but thats not the case.
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TimZ
founding member


Joined: 25 Feb 2008
Posts: 120
Location: Dearborn, Michigan
PostPosted: Thu May 01, 2008 11:35 am    Post subject: Reply with quote
p2164 wrote:
So no one has fouled a plug? I am not sure on TEC 3 as I do not have one but on the old units when you foul one you loose 2, on a 4 banger thats half. I found a considerable difference in going with a MSD DIS4 unit and single coil per cylinder on my turbo cars. I suppose if my program were to be right on the money then I wouldn't foul plugs but thats not the case.


Yes I have, but that's more of an issue of too rich a mixture, usually on a new calibration. In general if the engine floods and the plugs misfire wet, then they are fouled -it doesn't take long at all. I would think you'd have to be running pretty rich if you were fouling plugs regularly.
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Information is not knowledge
Knowledge is not wisdom
Wisdom is not truth
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Last edited by TimZ on Thu May 01, 2008 11:54 am; edited 1 time in total
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p2164
Newly Aquired


Joined: 27 Apr 2008
Posts: 15
Location: MISSOURI
PostPosted: Thu May 01, 2008 11:45 am    Post subject: Reply with quote
Thats why I am questioning my programing skills. I did a thermal melt down on my 2 liter 8 cylinder Ferrari twin turbo at 26 psi one cold morning and been nervous ever since, the exhaust valves just disappeared. Maybe I am just running to rich on the top and when you go to closed throttle it happens most.
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TimZ
founding member


Joined: 25 Feb 2008
Posts: 120
Location: Dearborn, Michigan
PostPosted: Fri May 02, 2008 2:51 pm    Post subject: Reply with quote
p2164 wrote:
Thats why I am questioning my programing skills. I did a thermal melt down on my 2 liter 8 cylinder Ferrari twin turbo at 26 psi one cold morning and been nervous ever since, the exhaust valves just disappeared. Maybe I am just running to rich on the top and when you go to closed throttle it happens most.


Are you using a wideband O2 sensor? If not - then go get one (preferably one for each of your very impressive cars Mr. Green). WOT AFRs should be targeting 12:1 at WOT for na applications, and more like 11.5:1 for boosted apps. In general, richer is safer. Closed throttle mixture is a different part of the VE table and can be handled separately.

Here is a link that talks about how to interface a wideband directly to the TEC:
http://www.electromotivegroup.com/innovate-lc1-and-tec2-t36.html

Also, it's a good idea to use the MAT mixture correction - my guess at what happened to your Ferrari is that the table was dialed in at warmer temperatures, and then when you took it out on a cold day, the air was denser, which leaned the mixture out. I think I remember you mentioning tuning to 13:1 in another post, which is a bit lean to begin with - going leaner from 13:1 as a starting point could spell trouble.
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Information is not knowledge
Knowledge is not wisdom
Wisdom is not truth
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p2164
Newly Aquired


Joined: 27 Apr 2008
Posts: 15
Location: MISSOURI
PostPosted: Fri May 02, 2008 5:27 pm    Post subject: Reply with quote
Actually 12.6 AFR is what I try to maintain with WOT. Your correct on the MAT correction, I didn't have enough correction dialed in and I cranked in 2 psi more boost that morning. Sure was a good ride till the valves disappeared.

I will shop around for a wide band. Were do you buy yours?
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TimZ
founding member


Joined: 25 Feb 2008
Posts: 120
Location: Dearborn, Michigan
PostPosted: Fri May 02, 2008 8:47 pm    Post subject: Reply with quote
p2164 wrote:
Actually 12.6 AFR is what I try to maintain with WOT. Your correct on the MAT correction, I didn't have enough correction dialed in and I cranked in 2 psi more boost that morning. Sure was a good ride till the valves disappeared.

I will shop around for a wide band. Were do you buy yours?


There are a number of manufacturers and vendors - here is where I got mine:

http://sandtmotorsports.com/lm1.asp
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Information is not knowledge
Knowledge is not wisdom
Wisdom is not truth
-FZ, Joe's Garage
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