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  Topic Review (Newest First)
08-30-2019 10:25 PM
egchewy Ok. This is my "told you so" moment. Called comp cams and rep verified iron gear. I exchanged it today at jegs after work. Thanks everyone who planted seeds of doubt into my head and saving my engine from needing rebuilt.
08-30-2019 06:02 PM
jhargrove
Quote:
Originally Posted by JKleiner View Post
Quote:
Originally Posted by egchewy View Post
...i've had tech support from summit, jegs, and pertronix all tell me that hardened/melonized steel is compatible ...
Instead of asking someone who is trying to sell a distributor I'd ask the cam manufacturer.


Jeff
Yes. Comp cam told me what I needed.
08-30-2019 05:44 PM
JKleiner
Quote:
Originally Posted by egchewy View Post
...i've had tech support from summit, jegs, and pertronix all tell me that hardened/melonized steel is compatible ...
Instead of asking someone who is trying to sell a distributor I'd ask the cam manufacturer.

Jeff
08-30-2019 05:35 PM
jhargrove
Quote:
Originally Posted by egchewy View Post
so i'm finding it hard to find a 2 wire dizzy w/ an iron gear.
not to start WWIII, but i've had tech support from summit, jegs, and pertronix all tell me that hardened/melonized steel is compatible with a hydraulic flat tappet cam.
maybe steel gear tech has changed over the years.
Luckily I bought mine from DSS Racing and they changed out the gear for me so I had the distributor I wanted that was compatible with the gear on the cam.
08-30-2019 04:15 PM
egchewy so i'm finding it hard to find a 2 wire dizzy w/ an iron gear.
not to start WWIII, but i've had tech support from summit, jegs, and pertronix all tell me that hardened/melonized steel is compatible with a hydraulic flat tappet cam.
maybe steel gear tech has changed over the years.
08-30-2019 02:32 AM
Murd
Quote:
Originally Posted by egchewy View Post
Loud and clear. Will head to jegs tomorrow to return it. Found a nice looking pertronix flame thrower billet 2 wire dizzy with iron gear on their website.
I’d take a few min and call pertronix to confirm what it actually is. When I got my pertronix dizzy the summit site said steel gear, pertronix site said iron, or other way around, for the same part number.
I called and they confirmed steel, which was what I needed. Said they’d been meaning to get that description fixed.

Side note. Don’t leave the key on without the engine running, it burns out the igniter module in the dizzy. Mine went shortly after I got on the road, pertronix replaced under warranty. I definitely had the key on a lot during the build testing lights and such.
08-29-2019 11:23 PM
egchewy Loud and clear. Will head to jegs tomorrow to return it. Found a nice looking pertronix flame thrower billet 2 wire dizzy with iron gear on their website.
08-29-2019 06:31 PM
Derald Rice
Quote:
Originally Posted by rich grsc View Post
NO, steel gears on a steel cam, iron gear on an iron cam. Ask Summit for a written warranty that they'll pay for any and all damage to your engine, and see what happens.
Absolutely agreed. This what I have always done. Steel on steel, iron on iron, and I have never had a gear failure. As long as steel and iron are available, I will not consider any other materials.
08-29-2019 05:01 PM
rich grsc
Quote:
Originally Posted by egchewy View Post
I was told that hardened steel would be compatible with iron cam.
is this not correct?
NO, steel gears on a steel cam, iron gear on an iron cam. Ask Summit for a written warranty that they'll pay for any and all damage to your engine, and see what happens.
08-29-2019 04:41 PM
egchewy
compatible gear and cam materials

here's what I found from summit's website suggesting that hardened steel is OK w/ iron cam.
https://help.summitracing.com/app/an...hould-i-buy%3F

here's another site saying the same.
https://www.onedirt.com/tech/engine/...compatibility/

i've also seen other websites saying that hardened steel is not compatible with hydraulic flat tappet cam (iron)
https://www.enginebuildermag.com/200...tributor-gear/

thoughts?
08-29-2019 04:37 PM
egchewy
Quote:
Originally Posted by railroad View Post
I think you need to re check the advise on the dist gear.
I was told that hardened steel would be compatible with iron cam.
is this not correct?
08-29-2019 01:19 PM
railroad I think you need to re check the advise on the dist gear.
08-28-2019 11:09 PM
rich grsc
Quote:
Originally Posted by egchewy View Post
Ok. Decided on a billet style 2 wire dizzy from jegs with hardened steel gear. I was assured this is compatible with my hydraulic flat tappet cam. Planning on letting fitech control timing advance. Does anyone know if the complete kit has a starter relay or do I need to buy one?
Look at the type of starter you have, does it have a relay or not?
08-28-2019 10:41 PM
egchewy Ok. Decided on a billet style 2 wire dizzy from jegs with hardened steel gear. I was assured this is compatible with my hydraulic flat tappet cam. Planning on letting fitech control timing advance. Does anyone know if the complete kit has a starter relay or do I need to buy one?
08-23-2019 05:41 PM
bobl
Quote:
Originally Posted by egchewy View Post
pros/cons of letting FiTech control timing vs ready to run dizzy?
Pros: you have more control of the timing curve and it has idle stabilization which strives to maintain the desired idle rpm by constantly changing the timing. This happens much quicker than the IAC alone can respond.

Cons: Cost if you already have a distributor. Not much if buying a distributor anyway. Complexity to get it phased correctly and programmed in software.
08-23-2019 04:53 PM
Avalanche325
Quote:
Originally Posted by Chepsk8 View Post
I have your set-up.

Been using a CRANE HI-6 Box and coil for 14 years, no problems. I like the fact you can set rev limit with a small screwdriver.

Was running a Unilite distributor, just switched to a MSD dizzy.
I did my engine through Fordstrokers. He is a fan of the Crane box. Not a fan of MSD. He said if you opened both and had a look, that would make your decision.
08-22-2019 04:38 PM
sdonnel I'm running the FiTech 600 hp system and letting it control the timing. I am not using any ignition box and haven't had any problems so far (knock on wood). I'm using a locked out MSD distributor with initial timing set at 14 degrees, with the all in at 34. Once you get it up and running, that's when the fine tuning starts. There are many forums out there like this one that will help with tuning as well as those that won't.

Scott
08-22-2019 12:02 PM
egchewy
timing control

Quote:
Originally Posted by bobl View Post
I assumed he was wanting to control timing with the FItec which limits your distributor choice. If not controlling timing then the choice is endless.
pros/cons of letting FiTech control timing vs ready to run dizzy?
08-22-2019 10:05 AM
egchewy
Quote:
Originally Posted by brian1967 View Post
I run a Mallory 4255111 ready to run 2 wire distributor with Mallory coil and required ballast resistor with my Fitech. I had issues using MSD and MSD wires inducing "spark noise".
This has a steel gear. Should I not be looking for a cast iron gear to be compatible with my cam?
08-22-2019 01:43 AM
brian1967 I run a Mallory 4255111 ready to run 2 wire distributor with Mallory coil and required ballast resistor with my Fitech. I had issues using MSD and MSD wires inducing "spark noise".
08-21-2019 07:28 PM
egchewy
Quote:
Originally Posted by Chepsk8 View Post
I have your set-up.

Been using a CRANE HI-6 Box and coil for 14 years, no problems. I like the fact you can set rev limit with a small screwdriver.

Was running a Unilite distributor, just switched to a MSD dizzy.
trying to run a set up with out a box.
08-21-2019 04:58 PM
Chepsk8 I have your set-up.

Been using a CRANE HI-6 Box and coil for 14 years, no problems. I like the fact you can set rev limit with a small screwdriver.

Was running a Unilite distributor, just switched to a MSD dizzy.
08-21-2019 04:55 PM
egchewy
distributor/FiTech combo

ok...finally ready to purchase a distributor.
been doing lots of research and there seems to be lots of things to consider.
running a 289 with cast flat tappet cam, fitech 600hp efi.
hearing some good things about pertronix and was wondering if the linked distributor would be a good compatible choice for the set up

https://www.jegs.com/i/Pertronix/751...830+4294829436

any input appreciated.
07-11-2019 09:02 PM
Buck8one2 I run the Fitech 600 with the MSD dist. I let the FiTech control timing and have had no issues. Just be sure the MSD model can be locked out.
Buck

MSD85793 dist and MSD84211 adj. rotor
07-11-2019 07:59 PM
Avalanche325 I'm not sure if it is compatible.

But I agree with MastangMan, Pertronix is a nice system. It gives you all the features without a box. Multi-spark through the whole range, which a lot of boxes don't, and a rev limiter which every Cobra should have.
07-11-2019 05:12 PM
bobl Something to be aware of. If FItech is controlling timing it has a limit of around 20 degrees of advance. You can program more advance but it can't do it. So you must have enough initial advance to be able to reach the total. IE: To get 38 degrees total advance you would need to set initial at 18. I discovered this on the dyno chasing a low HP problem. Finally put a timing light on it and saw the timing stopped advancing. Subsequently I read some discussion of that issue.
07-11-2019 05:00 PM
bobl I assumed he was wanting to control timing with the FItec which limits your distributor choice. If not controlling timing then the choice is endless.

Quote:
Originally Posted by Mustang Man View Post
Yes, certainly determine the proper distributor gear as mentioned above, but as far as ignition, it might help to know what kind of "look" you are aiming for with the engine (period small-block, or lots of billet bling, etc.) and your driving intentions. A street driver doesn't need a fancy "spark box" with a bunch of bells and whistles. For a nice driver I recommend a "ready to run" type distributor with matching coil. No external box, limits the wiring and keeps things clean. MSD, Mallory, and others offer them, but also check out the Pertronix distributor. They have a nice "cast" unit that looks like a vintage Ford distributor but has the electronic module under the cap with rev limiter built in.

HTH...
Mark
07-11-2019 01:34 PM
Mustang Man Yes, certainly determine the proper distributor gear as mentioned above, but as far as ignition, it might help to know what kind of "look" you are aiming for with the engine (period small-block, or lots of billet bling, etc.) and your driving intentions. A street driver doesn't need a fancy "spark box" with a bunch of bells and whistles. For a nice driver I recommend a "ready to run" type distributor with matching coil. No external box, limits the wiring and keeps things clean. MSD, Mallory, and others offer them, but also check out the Pertronix distributor. They have a nice "cast" unit that looks like a vintage Ford distributor but has the electronic module under the cap with rev limiter built in.

HTH...
Mark
07-10-2019 06:50 PM
Avalanche325
Quote:
Originally Posted by egchewy View Post
anyone have issues with the MSD box itself?
Thread after thread of MSD box failures on this forum.

Before anyone chimes in about their 15 year old MSD box that works perfectly......Yes, that was before their quality went away.
07-10-2019 05:28 PM
bobl Allstar performance makes one that works with the FItech. You will need a phasable rotor available from msd and lock out the mechanical advance.

https://allstarperformance.com/hp-fo...-302-all81246/

It uses all the same internals as MSD. It's probably made in China just like all the rest, but at least it doesn't say MSD on it. LOL.
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