[Elvis 66]

High performance Industries inc..aka holly ..ther like the Disney in the automotive world i have always been a big fan of Barry Grant Demon carburetors .im glad holly stepped in . During the bankruptcy and kept that line going

 

[EcoVert17]

I knew Holley had bought up a bunch of businesses, but look at the list...wow!

Hooker Headers, Weiand, Nitrous Oxide Systems, Flowtech Exhaust, Demon Carburetion, Earl's Performance Plumbing, Diablosport, MSD, Mr. Gasket, Accel, Superchips, Edge, Racepak, Mallory, Hays, Quicktime, Lakewood

MSD & Diablosport you say?

 

[sganow]

Wow, that's quite a list. I had no idea.

 

[Squid]

They keep expanding ... we get new product e-mails from them weekly:

Holley Preformance Product Brands : Holley, Hooker, NOS, Earl's, Weiand, Flowtech

 

[dgc333]

High performance Industries inc..aka holly ..ther like the Disney in the automotive world i have always been a big fan of Barry Grant Demon carburetors .im glad holly stepped in . During the bankruptcy and kept that line going

Demon carburators we're some of the biggest pieces of junk in the carburator market. You'd get them full of machining chips, miss drilled ports and missing parts. Buy a Demon and the first thing you would have to do is rebuild it. Then after sales support was zero. There was a reason they went bankrupt. Their only redeeming quality was they were a stylish copy of a Holley.



Dave

 

[Elvis 66]

Never had any issues with my Demons??

 

[Elvis 66]

I've had this particular . Barry Grant carburetor for over 10 years and it's been great to me ..no problems and i have pushed her over 130mph

 

[kboyer]

Why do you want to change your coils?

All the reasons to upgrade coils from the days when one coil had to fire 8 plugs are solved with the coil on plug that is in the ecoboost. You have plenty of dwell to fully saturate the coil all the way to redline when the coil only has to fire one plug. There is no reason to upgrade the coils unless you have massive boost creating enough cylinder pressure to keep the mixture from igniting reliablely there is no reason to use anything but the stock coils.

Dave

I changed my coil because I upgraded with a stage 3 tune, a graded wastegate, cold air intake catch can, new throttle body and upgraded exhaust. When I change the coil I a smoother responds and reach high speeds quicker. I am not sure if it was due to coil packs but i find that I get a nice responds when accelerating.

 

[EcoVert17]

The only reason to replace ignition coils would be to correct a misfire; which would set a fault code. The code(s) would be P0300, 301-304. If there's only a code for one cylinder, then the trick is to move the coils from one cylinder to another. The purpose of that is to determine if the misfire follows the coil. If it does, then the coil is the fault. If not, then the plugs, or multiple coils may be at fault. It's a fairly straightforward diagnosis, really. But, I'd stick to Motorcraft coils, if they are needed. One thing about OEM parts...they ALWAYS work.

I disagree Moxman... I believe there are benefits to replacing the ignition coils to a performance set. I recently purchased a set of the yellow Accel's and believe that on top of the idle being much more smoother, when accelerating it seems to be more consistent (power comes on quicker) as well.

 

[kboyer]

I disagree Moxman... I believe there are benefits to replacing the ignition coils to a performance set. I recently purchased a set of the yellow Accel's and believe that on top of the idle being much more smoother, when accelerating it seems to be more consistent (power comes on quicker) as well.

I agree.

 

[ecostang19]

Stock coil packs fall flat and become inconsistent at high rpm (especially with high boost). This leads to the ecu pulling timing and boost to deter from LSPI event. On a daily driver that you want to make a few more horses and thats it - there is no reason. If your slamming gears at 6k rpm under full boost on a tuned track car, there will come a time when you’ll say. I wish I would have upgraded the spark!

Its not to say they increase voltage or spark, they just maintain it better under extreme load.

I had accels and just ordered the msd’s because the red msd’s look better with my theme in the engine bay than the yellow and blue accels.

The more aggressive you get with tuning the more the little sh-t becomes important.

 

[EcoVert17]

I knew Holley had bought up a bunch of businesses, but look at the list...wow!
Diablosport, Accel

<grin>

 

[drummerd333]

Just ordered a set of the Duralast's, which are ODM and have a lifetime warranty. Should be here tomorrow.

You should stick with original parts, motor craft! Your miss fire will be back soon with after market parts, save your money.

 

[13961]

You should stick with original parts, motor craft! Your miss fire will be back soon with after market parts, save your money.

Not trying to be a ahole, but what drives someone to join a forum and the first thing they post on, is a year and half old thread that is no longer relevant?

 

[rouh126]

OEM coil packs Last the longest....I know from experience. MSD/Holley, Accel and Granatelli coils will not withstand everyday abuse as will OEM Motor raft. That's why they came from the factory with them installed....

 

[Alan Applegate]

Just a minor point. Ford engineers developed the COP (Coil Over Plug) some years back. With the exception of some GM and Chrysler V8s (there may be others), and all Fords and most other makes now use them.

To me, when you call them coils, I think of a GM small block which still uses coils. At least there is one coil per plug which helps with any inherent dwell issues. I should mention, there are a couple of GM engines which still use the lost spark coils. They're the ones where the high side of the coil fires one plug, and the low side a different plug (only 3 coils for 6 plugs).

COP units are as effective as any other type of coil-based ignition, including MSD et. al. In fact, most electronically-based ignitions multiple-fire the COPs in a similar fashion as does MSD. COPs also have much less RFI mainly as there are no secondary (plug) wiring and a builtin LCR filter.