What ignition setup for 7,000 rpm or greater shifts? - Page 2

slvrbullit · 08-01-2005, 08:45 PM

Doesnt the EEc limiter cut fuel and not spark? Which inturn would be bad, I really do not know is why I am asking.

ERStettin · 08-01-2005, 08:53 PM

Quote:

For some strange reason, he'd rather use the EEC rev limiter instead of the MSD.

Fellas, the TwEECer RT allows me to set the rev limiter to the moon as well. It pulls spark or fuel (not sure which) in the same manner the MSD does. The only reason I was considering the A6L was for a carb setup in the future when I don't use the TwEECer. Then its rev limiter would be nice to have.

What is the difference between the rev limiter on the MSD and the TwEECer? They both operate the exact same way correct?

slvrbullit · 08-01-2005, 08:59 PM

I have heard that the factory EEC rev limiter was actually a fuel cut and now a spark cut, the MSD cuts the spark ao it fires oddly.

Shankin · 08-02-2005, 06:34 AM

On my car with stock elctronics the stock ignition ssytem with a 6al box works just fine. I have seen cars make over 1000 to the tires with a stock ford coil and a 6al so i guess it would be ok for your combo.

93Cobra#2771 · 08-02-2005, 09:35 AM

Regarding the EEC rev limiter. It does, indeed, cut fuel. However, it doesn't cut a little fuel, it cuts ALL THE FUEL TO EVERY OTHER CYLINDER.

In other words, it makes every other cylinder a dead cylinder (effective pumping air). So, it avoids the problems of killing spark (cylinder wash from injectors still firing, and sometimes backfiring down the exhaust system due to the raw fuel pumping through the cylinders).

With that being said, Ed, I do recommend upping to aftermarket ignition. Better burn, hotter spark, etc. You can leave the rev limiting out of it and still use your EEC, or you do as Italian said and raise the EEC rev limit a few hundred rpm over the aftermarket rev limiter.

I currently run my MSD without an rpm chip, and use the EEC for rev limiting duties. You should also look into the Crane stuff - it's a little higher tech than the MSD, and a lot cleaner looking inside the case.

BTW, I do not know about the later model EEC's rev limiting methods, this only applies to 93 and older...

ERStettin · 08-02-2005, 02:58 PM

Thanks for the information Richard. I am on the verge of buying a HI-6 setup right now. I should know this evening. I want to upgrade now so that I will be set for later....lol.

Wickd GT · 08-02-2005, 06:57 PM

Quote:

Originally Posted by ERStettin

Thanks for the information Richard. I am on the verge of buying a HI-6 setup right now. I should know this evening. I want to upgrade now so that I will be set for later....lol.

You mean the Crane Hi-6? Stay away from it, this box is known for misfire at top end, not as reliable as the MSD.

Edgar

ERStettin · 08-02-2005, 09:31 PM

Edgar,

Where is information on this misfire stuff with the HI-6? I have been scouring the internet and talking with friends that are running them and they have had zero problems with them.

On the other hand, read this. http://www.corral.net/forums/showthr...ht=distributor I was going to go with a MSD setup but after reading this and talking to some people with these same experiences I decided the HI-6 is the way to go for me.

I have a friend here in Iowa that had the same experience with his MSD 6AL box actually failing and having to have it replaced last year. He is running a Crane HI-6 now. I know MSD's were good before the buy out several years ago, but as of the last few years, they seem to be going in the crapper.

Again, I have zero experience with any of them. I am just going on word of mouth from some hard core racing friends and they are telling me to stay away from MSD. They are telling me their first hand experiences and that means alot to me.

I am glad it is working for you. They seem to be hit or miss lately.

Disney Lincoln · 08-03-2005, 12:17 AM

For that kind of RPM, I would look into a 7 series system and a Crank trigger.

Wickd GT · 08-03-2005, 05:05 AM

Quote:

Originally Posted by ERStettin

Edgar,

Where is information on this misfire stuff with the HI-6? I have been scouring the internet and talking with friends that are running them and they have had zero problems with them.

On the other hand, read this. http://www.corral.net/forums/showthr...ht=distributor I was going to go with a MSD setup but after reading this and talking to some people with these same experiences I decided the HI-6 is the way to go for me.

I have a friend here in Iowa that had the same experience with his MSD 6AL box actually failing and having to have it replaced last year. He is running a Crane HI-6 now. I know MSD's were good before the buy out several years ago, but as of the last few years, they seem to be going in the crapper.

Again, I have zero experience with any of them. I am just going on word of mouth from some hard core racing friends and they are telling me to stay away from MSD. They are telling me their first hand experiences and that means alot to me.

I am glad it is working for you. They seem to be hit or miss lately.

On that you are right, I have seen lately a lot of the MSD failing, the HI-6 a freind of mine here with a 582 BBC had the Crane but when in the higher rpm 7500-8000rpm it will misfire taking with it 4 pistons, nobody has said this, but the Mallory box it is a very good box in all rpms. Now you said you might consider later on to go Carb, then I'll go with the 7 box, lots a good features in that box.

Edgar

08-01-2005, 08:45 PM	#11
slvrbullit Super Moderator Join Date: Dec 2004 Location: on the water Posts: 1,280	Re: What ignition setup for 7,000 rpm or greater shifts? Doesnt the EEc limiter cut fuel and not spark? Which inturn would be bad, I really do not know is why I am asking. __________________ 2012 Jeep Wrangler Unlimited--- too many mods to list, about to be sitting on 1 ton axles. 2000 Ford F-350 Dually Lariat LE Crew Cab Short Box 7.3 auto 168,000 miles

08-01-2005, 08:59 PM	#13
slvrbullit Super Moderator Join Date: Dec 2004 Location: on the water Posts: 1,280	Re: What ignition setup for 7,000 rpm or greater shifts? I have heard that the factory EEC rev limiter was actually a fuel cut and now a spark cut, the MSD cuts the spark ao it fires oddly. __________________ 2012 Jeep Wrangler Unlimited--- too many mods to list, about to be sitting on 1 ton axles. 2000 Ford F-350 Dually Lariat LE Crew Cab Short Box 7.3 auto 168,000 miles

08-02-2005, 06:34 AM	#14
Shankin Senior Member Join Date: Jul 2005 Posts: 339	Re: What ignition setup for 7,000 rpm or greater shifts? On my car with stock elctronics the stock ignition ssytem with a 6al box works just fine. I have seen cars make over 1000 to the tires with a stock ford coil and a 6al so i guess it would be ok for your combo.

08-02-2005, 09:35 AM	#15
93Cobra#2771 The Kocky One Join Date: Dec 2004 Location: Yeah, but those cutters won't bust any walnuts.â„¢ Posts: 1,948	Re: What ignition setup for 7,000 rpm or greater shifts? Regarding the EEC rev limiter. It does, indeed, cut fuel. However, it doesn't cut a little fuel, it cuts ALL THE FUEL TO EVERY OTHER CYLINDER. In other words, it makes every other cylinder a dead cylinder (effective pumping air). So, it avoids the problems of killing spark (cylinder wash from injectors still firing, and sometimes backfiring down the exhaust system due to the raw fuel pumping through the cylinders). With that being said, Ed, I do recommend upping to aftermarket ignition. Better burn, hotter spark, etc. You can leave the rev limiting out of it and still use your EEC, or you do as Italian said and raise the EEC rev limit a few hundred rpm over the aftermarket rev limiter. I currently run my MSD without an rpm chip, and use the EEC for rev limiting duties. You should also look into the Crane stuff - it's a little higher tech than the MSD, and a lot cleaner looking inside the case. BTW, I do not know about the later model EEC's rev limiting methods, this only applies to 93 and older... __________________ *For Sale: Reproduction Window Stickers, 87+ Mustangs, Cobras, Lightnings, and HD F150!* Richard White 93 Cobra Kocky will be back!

08-02-2005, 02:58 PM	#16
ERStettin Senior Member Join Date: Jun 2005 Posts: 109	Re: What ignition setup for 7,000 rpm or greater shifts? Thanks for the information Richard. I am on the verge of buying a HI-6 setup right now. I should know this evening. I want to upgrade now so that I will be set for later....lol. __________________ Dart 360 (ADPerformance), FTI AFR 225, FTI Edelbrock Victor EFI, FTI Cam, Pro M 80 MM (42lb injectors), KOOKS Longtubes 1 7/8 inch to 2 inch to 3.5 inch collectors, Pro Motion TKO, FMS 4.88, Global West Suspension, ET Drags, TwEECer RT 10.74 @ 127.68 (best so far) THANKS : Ed Curtis www.flowtechinduction.com, Dave of www.jdsperformance.com, Walt of Pro Motion Transmissions, Jack of www.musclemotors.com, Brian of www.adperformance.com and Matt of SPEC clutches (www.specclutch.com)

08-02-2005, 09:31 PM	#18
ERStettin Senior Member Join Date: Jun 2005 Posts: 109	Re: What ignition setup for 7,000 rpm or greater shifts? Edgar, Where is information on this misfire stuff with the HI-6? I have been scouring the internet and talking with friends that are running them and they have had zero problems with them. On the other hand, read this. http://www.corral.net/forums/showthr...ht=distributor I was going to go with a MSD setup but after reading this and talking to some people with these same experiences I decided the HI-6 is the way to go for me. I have a friend here in Iowa that had the same experience with his MSD 6AL box actually failing and having to have it replaced last year. He is running a Crane HI-6 now. I know MSD's were good before the buy out several years ago, but as of the last few years, they seem to be going in the crapper. Again, I have zero experience with any of them. I am just going on word of mouth from some hard core racing friends and they are telling me to stay away from MSD. They are telling me their first hand experiences and that means alot to me. I am glad it is working for you. They seem to be hit or miss lately. __________________ Dart 360 (ADPerformance), FTI AFR 225, FTI Edelbrock Victor EFI, FTI Cam, Pro M 80 MM (42lb injectors), KOOKS Longtubes 1 7/8 inch to 2 inch to 3.5 inch collectors, Pro Motion TKO, FMS 4.88, Global West Suspension, ET Drags, TwEECer RT 10.74 @ 127.68 (best so far) THANKS : Ed Curtis www.flowtechinduction.com, Dave of www.jdsperformance.com, Walt of Pro Motion Transmissions, Jack of www.musclemotors.com, Brian of www.adperformance.com and Matt of SPEC clutches (www.specclutch.com)

08-03-2005, 12:17 AM	#19
Disney Lincoln Senior Member Join Date: May 2005 Posts: 290	Re: What ignition setup for 7,000 rpm or greater shifts? For that kind of RPM, I would look into a 7 series system and a Crank trigger.