Granatelli Coil Packs, any real dyno proof
Legacy TMS Member
Joined: October 8, 2005
Posts: 12,395
Likes: 29
From: Medina county, OH
I offered this to JR Granatelli last year, offering to pay his price (retail) if they had gains and his cost if they didn't. That way no matter what, GMS wasn't out any $$. I never received a response from JR. It would be interesting to see, since claims are made on the GMS site.
AND NO, I AM NOT BASHING GMS!
Cobra Member
Joined: November 27, 2004
Posts: 1,303
Likes: 2
From: Albuquerque, New Mexico
I have also run the aftermarket COPs on my car when naturally aspirated. I did not dyno the results, but the car ran smoother, less hesitation and felt better all-around.
I have switched back and forth while running the supercharger from OEM, to MSD to GMS COPs.
I personally feel the GMS COPs perform the best of the three. When I see Brent White I will dyno the aftermarket COPs maybe in May.
When I was N/A though I still was happy with the mod.
I have switched back and forth while running the supercharger from OEM, to MSD to GMS COPs.
I personally feel the GMS COPs perform the best of the three. When I see Brent White I will dyno the aftermarket COPs maybe in May.
When I was N/A though I still was happy with the mod.
Unregistered
Joined: January 7, 2008
Posts: 76
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Legacy TMS Member
Joined: January 9, 2005
Posts: 6,982
Likes: 6
From: New Carlisle, Ohio (20 miles north of Dayton)
I really want to know the truth about these COPS on a N/A motor. I acually spoke to one of the Big 3 tuners for our Stangs about the MDS COPS today about the before and after results of the COPS. This is what I was told......."they seem to improve gas mileage...they seem to smooth the idle....they seem to improve throttle respone. But we see no improvement in power!!! That is pretty much a quote. This may explain why we have never seen a dyno sheet before and after on this product regardless of the manufacturer!!
Scott
Scott
Last edited by 70MACH1OWNER; Mar 26, 2008 at 06:24 PM.
Bullitt Member
Joined: October 8, 2007
Posts: 336
Likes: 0
I offered this to JR Granatelli last year, offering to pay his price (retail) if they had gains and his cost if they didn't. That way no matter what, GMS wasn't out any $$. I never received a response from JR. It would be interesting to see, since claims are made on the GMS site.
AND NO, I AM NOT BASHING GMS!
AND NO, I AM NOT BASHING GMS!
I offered to dyno a stock car and a blown one with the COPs with the same responce, or lack there of.
Former Vendor
Joined: January 11, 2007
Posts: 2,594
Likes: 0
From: Aston, PA
Installed a set on a twin turbo 04 cobra about 3 weeks ago. They worked great. Didn't do any before and after, because we did the install on the turbos as well. If I had known, that would have been a great way to find FI numbers on the COP's.
CR
CR
Bullitt Member
Joined: October 8, 2007
Posts: 336
Likes: 0
Why the Cobra coils work great?
Mach 1 Member
Joined: January 30, 2008
Posts: 721
Likes: 4
From: Pacific NW USA
Wow! Now that is cool.
http://www.plasmatronicsllc.com/faq.html
http://www.plasmatronicsllc.com/play.html
http://www.plasmatronicsllc.com/index.html
Several years ago, I read about an experiment at some university in Australia. They were experimenting with a true plasma ignition system. Basically, they used a tiny prechamber and ignited a very, very rich mixture of fresh air and hydrogen gas. That caused a jet of burning hydrogen plasma to be shot into the main combustion chamber. That burning plasma would light pretty much anything.
They were able to actually throttle the engine on gasoline just like a diesel engine: No throttle body, just adjust the amount of fuel injected to determine power output. It could light mixtures leaner than 28:1. And it ran VERY smooth with incredibly complete combustion. I'm not sure what happened to the technology, but if I had to guess, I would say emissions (mainly oxides of nitrogen) probably killed it.
http://www.plasmatronicsllc.com/faq.html
http://www.plasmatronicsllc.com/play.html
http://www.plasmatronicsllc.com/index.html
Several years ago, I read about an experiment at some university in Australia. They were experimenting with a true plasma ignition system. Basically, they used a tiny prechamber and ignited a very, very rich mixture of fresh air and hydrogen gas. That caused a jet of burning hydrogen plasma to be shot into the main combustion chamber. That burning plasma would light pretty much anything.
They were able to actually throttle the engine on gasoline just like a diesel engine: No throttle body, just adjust the amount of fuel injected to determine power output. It could light mixtures leaner than 28:1. And it ran VERY smooth with incredibly complete combustion. I'm not sure what happened to the technology, but if I had to guess, I would say emissions (mainly oxides of nitrogen) probably killed it.
Bullitt Member
Joined: October 5, 2006
Posts: 487
Likes: 0
I really want to know the truth about these COPS on a N/A motor. I acually spoke to one of the Big 3 tuners for our Stangs about the MDS COPS today about the before and after results of the COPS. This is what I was told......."they seem to improve gas mileage...they seem to smooth the idle....they seem to improve throttle respone. But we see no improvement in power!!! That is pretty much a quote. This may explain why we have never seen a dyno sheet before and after on this product regardless of the manufacturer!!
Scott
Scott
I completely agree. I have read posts on other sites of people going from stock/GMS/MDS and back to stock because there was no gain in performance on the dyno.
Shelby GT500 Member
Joined: October 9, 2006
Posts: 2,757
Likes: 1
From: It's tough in the jungle !
Former Vendor
Joined: January 11, 2007
Posts: 2,594
Likes: 0
From: Aston, PA
We just noticed that the car was running very efficiently with them in. VE & Timing was looking great the whole time.
CR
Tillman Speed, Inc.
www.TillmanSpeed.com
610-497-5776
CR
Tillman Speed, Inc.
www.TillmanSpeed.com
610-497-5776
completely agree. I have read posts on other sites of people going from stock/GMS/MDS and back to stock because there was no gain in performance on the dyno.
Please post that link to those results because I have not seen a single dyno sheet showing no gain. I was one of the people that went back to OEM COPs for a while because the first version of the GMS COPs had several early coil failures. One guy posted he lost horsepwer because he had a bad GMS COP. That does not mean anything. You will lose horsepower even with OEM COPs if one goes bad, duh.
Mach 1 Member
Joined: January 30, 2008
Posts: 721
Likes: 4
From: Pacific NW USA
Do you have Dyno runs that actually show a horsepower gain with any of the aftermarket COPs over stock?
Really? What forum? I am the only person I have seen that has run MSD and GMS and posts on the forums.
Please post that link to those results because I have not seen a single dyno sheet showing no gain. I was one of the people that went back to OEM COPs for a while because the first version of the GMS COPs had several early coil failures. One guy posted he lost horsepwer because he had a bad GMS COP. That does not mean anything. You will lose horsepower even with OEM COPs if one goes bad, duh.
Please post that link to those results because I have not seen a single dyno sheet showing no gain. I was one of the people that went back to OEM COPs for a while because the first version of the GMS COPs had several early coil failures. One guy posted he lost horsepwer because he had a bad GMS COP. That does not mean anything. You will lose horsepower even with OEM COPs if one goes bad, duh.
Member
Joined: November 8, 2007
Posts: 10
Likes: 0
Any update on this?
I will be running 16lbs of boost on my motor (turbo) and I will make somewhere in the area of 700rwhp (T76). I would be very interested in trying GMS' product out and see how well it helps in high boost/hp applications. I also have a friend with a stock n/a car I could test.
I really want to know how big of an increase you will get with these.
I will be running 16lbs of boost on my motor (turbo) and I will make somewhere in the area of 700rwhp (T76). I would be very interested in trying GMS' product out and see how well it helps in high boost/hp applications. I also have a friend with a stock n/a car I could test.
I really want to know how big of an increase you will get with these.
i think these will be a big advantage on yours