Accel Module
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From: MARGATE, FLORIDA
Car: 1988 CHEVROLET IROC-Z
Engine: 5.7 TUNED PORT INJECTION
Transmission: 700R4 AUTOMATIC
Axle/Gears: 3.73
Accel Module
IS THE ACCEL MODULE FOR AN L98 ENGINE WORTH THE PRICE? DID ANYONE EVEN TRY ONE? RESULTS?
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From: MARGATE, FLORIDA
Car: 1988 CHEVROLET IROC-Z
Engine: 5.7 TUNED PORT INJECTION
Transmission: 700R4 AUTOMATIC
Axle/Gears: 3.73
ACCEL MODULE
I AM TALKING ABOUT THE MODULE WITH THE TWO PRONGS AND TWO OVAL FEMALE ENDS. THE DISTRIBUTOR IS THE SMALL SERIES. HOZZ4
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From: Everett, MA . USA
Car: 89 FORMULA FIREBIRD, 86 CHEVY CAMARO
Engine: L98, LB9 RESPECTIVLY
Transmission: 700 R4 (BOTH)
I tried one, made little or no difference in the way the car ran, and it wasn't any cheaper than a quality one at a parts store. I ended up keeping it for a spare.
...I'd go with the MSD module now that they have one for the late-model HEI. I've had to many problems with Accel products.
- Unless you're turning over 5500 rpm an aftermarket module isn't gonna do anything a factory replacement won't do.
- Unless you're turning over 5500 rpm an aftermarket module isn't gonna do anything a factory replacement won't do.
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From: DFW
Car: 1991 Z28 & 1992 Z28
Engine: LB9 & L98
Transmission: T56 & T56
Axle/Gears: 4.10s & 3.23s
actually I think the stock ignition components start fizzling out after 4600RPM and supposedly just fart after 5000rpm
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From: DFW
Car: 1991 Z28 & 1992 Z28
Engine: LB9 & L98
Transmission: T56 & T56
Axle/Gears: 4.10s & 3.23s
You may be right... I may be thinking of the old school HEI... I know the newer ones didnt go too high because GM knew the cars werent made to go that high, they would have been cutting off their own feet in warranty claims because the factory press in rocker studs start inching out after 5000rpms (unsafe for valvetrain)
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From: MARGATE, FLORIDA
Car: 1988 CHEVROLET IROC-Z
Engine: 5.7 TUNED PORT INJECTION
Transmission: 700R4 AUTOMATIC
Axle/Gears: 3.73
ACCEL MODULE
I ACTUALLY HAD SOOO MANY PROBLEMS WITH THE ACCEL PART (AND I TRIED TWICE WITH TWO NEW PARTS FROM SUMMIT) THAT I'LL NEVER BUY ANOTHER ACCEL PART AS LONG AS I LIVE. IT WOULD RUN LIKE I HAD CRISS CROSSED SPARK PLUG WIRES AND IT OBVIOUSLY REALLY ACTED UP WHEN I HIT IT. ACCEL SEEMS TO BE JUNK IF YOU ASKED ME.
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From: Waldorf, MD
Car: 91 Formula, 89 IROC
Engine: LB9, LB9
Transmission: 700R4, 700R4
Axle/Gears: Posi 2.73, Posi 2.73
How do I know which one I need for my HEI, there are several different ones. I have the external coil.
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From: MARGATE, FLORIDA
Car: 1988 CHEVROLET IROC-Z
Engine: 5.7 TUNED PORT INJECTION
Transmission: 700R4 AUTOMATIC
Axle/Gears: 3.73
ACCEL MODULE
Originally Posted by 90CamaroTBI
How do I know which one I need for my HEI, there are several different ones. I have the external coil.
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From: Waldorf, MD
Car: 91 Formula, 89 IROC
Engine: LB9, LB9
Transmission: 700R4, 700R4
Axle/Gears: Posi 2.73, Posi 2.73
Does it just pull out and the new one slip in? I am sure it will help over my stock 200,000 mile one.
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From: Waldorf, MD
Car: 91 Formula, 89 IROC
Engine: LB9, LB9
Transmission: 700R4, 700R4
Axle/Gears: Posi 2.73, Posi 2.73
Well I guess I have to get Accel because the only ones it lists on there is Accel. The MSD is only 4 pin or something instead of the 8 pin thats stock I guess. I dunno whats the one I seen in a Chevy magazine that just goes in easy....it was black uhhhh anybody know?
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From: Waldorf, MD
Car: 91 Formula, 89 IROC
Engine: LB9, LB9
Transmission: 700R4, 700R4
Axle/Gears: Posi 2.73, Posi 2.73
I want the pertronix one but stupid sites dont list it, they only list the 4 and 7 pin ones. Where could I order a 8 pin one from? Thats what I think my external coil takes.
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From: Armpit state
Car: 71 Nova
Engine: Superramed 383, Topline heads
Transmission: 700r4
Axle/Gears: 8.2 posi 3.08
PNX-D2002 
Their are two different ones.
Here match yours up.
http://www.vintageperformance.com/re.../hei_parts.htm

Their are two different ones.
Here match yours up.
http://www.vintageperformance.com/re.../hei_parts.htm
Last edited by shaggy56; Apr 14, 2006 at 11:00 PM.
i have the accel sitting in my tool box for my 92. I keep burning the stock ones up and the ones from the parts store (Borg Warner) only last about a year for me.
Anyway, i tried to find the correct one through MSD and at the time they just didnt have it...they didnt make it. Maybe things have changed now, but i hope my accel works out for me!!!
Anyway, i tried to find the correct one through MSD and at the time they just didnt have it...they didnt make it. Maybe things have changed now, but i hope my accel works out for me!!!
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From: Wa
Car: 85 Firebird
Engine: 2.8
Transmission: T5
Don't Buy/ Waste of money
I have 2 cars both use the same ignition module. The both run small cap distributors. I had the one ignition module last maybe 5 months. I also was running an Accel coil. It lasted about 2-3 months. I emailed Mr. Gasket/Accel about it. They told me that they thought that I had the wrong application. Bottom line do not buy Accel.
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From: Waldorf, MD
Car: 91 Formula, 89 IROC
Engine: LB9, LB9
Transmission: 700R4, 700R4
Axle/Gears: Posi 2.73, Posi 2.73
How the hell can I match it up, I cant rip the car apart without having the part to replace it.
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From: Armpit state
Car: 71 Nova
Engine: Superramed 383, Topline heads
Transmission: 700r4
Axle/Gears: 8.2 posi 3.08
Im not sure of the difference but this is the part thats comparative for your vehicle. I was able to cross reference the correct part.
Thats for a 1990 tbi 305
DELCO: D1943A,D1960A,D1978,D1979
GM:1987465/6,16139379,16140039
http://www.megasquirt.info/ms2/GM_7pinHEI.htm
http://www.vintageperformance.com/re.../hei_parts.htm
PNX-D2003
How the hell can I match it up, I cant rip the car apart without having the part to replace it.
Thats for a 1990 tbi 305
DELCO: D1943A,D1960A,D1978,D1979
GM:1987465/6,16139379,16140039
http://www.megasquirt.info/ms2/GM_7pinHEI.htm
http://www.vintageperformance.com/re.../hei_parts.htm
PNX-D2003
Last edited by shaggy56; Apr 17, 2006 at 12:47 PM.
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From: DFW
Car: 1991 Z28 & 1992 Z28
Engine: LB9 & L98
Transmission: T56 & T56
Axle/Gears: 4.10s & 3.23s
was gonna post a link to summit but this website doesnt seem to want to do that.... sorry
the msd part number is 8226
the msd part number is 8226
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From: Santa Rosa, CA
Car: 90 IROC-Z
Engine: LB9
Transmission: M5 5spd
Axle/Gears: 3.42 POSI
I TRIED THE ACCEL MOD, GOT IT FROM SUMMIT. PUT IT IN MY CAR AND GOT ABOUT 8 MILES OUT OF TOWN BEFORE THE CAR JUST DIED. THIS HAPPEND TWICE. I WAS LUCKY BOTH TIMES I HAD THE STOCK ONE WITH ME. I NOW HAVE THE MSD DIST, AND IT WORKS AWESOME!!! IT'S A DROP IN AND PLUG TO YOUR ORIG. WIRES. JUST MY
!!!
!!!
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From: MARGATE, FLORIDA
Car: 1988 CHEVROLET IROC-Z
Engine: 5.7 TUNED PORT INJECTION
Transmission: 700R4 AUTOMATIC
Axle/Gears: 3.73
ACCEL MODULE
Originally Posted by 90IROC1
I TRIED THE ACCEL MOD, GOT IT FROM SUMMIT. PUT IT IN MY CAR AND GOT ABOUT 8 MILES OUT OF TOWN BEFORE THE CAR JUST DIED. THIS HAPPEND TWICE. I WAS LUCKY BOTH TIMES I HAD THE STOCK ONE WITH ME. I NOW HAVE THE MSD DIST, AND IT WORKS AWESOME!!! IT'S A DROP IN AND PLUG TO YOUR ORIG. WIRES. JUST MY
!!! 
!!! 
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From: DFW
Car: 1991 Z28 & 1992 Z28
Engine: LB9 & L98
Transmission: T56 & T56
Axle/Gears: 4.10s & 3.23s
Originally Posted by 91RamAir Formula
8226 is the part number for the coil not the module? anyone know the module #
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From: DFW
Car: 1991 Z28 & 1992 Z28
Engine: LB9 & L98
Transmission: T56 & T56
Axle/Gears: 4.10s & 3.23s
I just got off the phone with MSD. They do not make a module for the HEI with external coil. I got mine out of a used MSD distributor thinking it was an upgrade. They use stock GM modules in their distributors. He assured me that the stock modules were fine to use with other aftermarket ignition components. He did tell me to make sure I use an actual GM module, and not a cheap one. Hope this helps
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Joined: Sep 2004
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Car: 89' Iroc-Z G92
Engine: TPI 305 G92
Transmission: T-5
Axle/Gears: Limited 9 bolt, 3.45
I'm running an OER 8 pin module in my TPI305, it was 55 bucks at the parts store and works fine. Its more or less a GM part and they have a one year warranty. OER makes two different 8 pin modules, spend the extra $15 bucks for the better part.
Believe it or not back in the day Accel was the best **** around, then they moved to Mexico .
Believe it or not back in the day Accel was the best **** around, then they moved to Mexico .
Last edited by Mcdamit; Apr 21, 2006 at 12:23 PM.
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From: DFW
Car: 1991 Z28 & 1992 Z28
Engine: LB9 & L98
Transmission: T56 & T56
Axle/Gears: 4.10s & 3.23s
Originally Posted by Mcdamit
Believe it or not back in the day Accel was the best **** around, then they moved to Mexico .
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From: E.B.F. TN
Car: Tree Huggers
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Transmission: Appreciate Me.
I've found that most of the modules are comparable.
Since we are on this discussion, I always feel the need to add this in as I constantly see people doing this.
Do NOT use dielectric grease under the module, use the right stuff, thermal heatsink compound. Many of the box store ones come with the dielectric crap. What you want is the white or silver colored stuff.
Wells part # SL-203. And make sure the parts boys give you both tubes in the box, lately I've had the parts boys pulling out one tube from the box and trying to charge me the full price. It should be two tubes in the Wells box, IIRC blue and white box.
Since we are on this discussion, I always feel the need to add this in as I constantly see people doing this.
Do NOT use dielectric grease under the module, use the right stuff, thermal heatsink compound. Many of the box store ones come with the dielectric crap. What you want is the white or silver colored stuff.
Wells part # SL-203. And make sure the parts boys give you both tubes in the box, lately I've had the parts boys pulling out one tube from the box and trying to charge me the full price. It should be two tubes in the Wells box, IIRC blue and white box.
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From: Wisconsin
Car: 1991 Z28
Engine: 5.7 TPI L98
Transmission: 700-R4
Axle/Gears: Moser 9" with 4.11
yeah, i go through a module about once a year. i was running the autozone wells 8 pin ($35) and it was fine for a year, then i went to Napa OEM and that lasted 2 years... I went back to autozone since they got a limited lifetime warranty on the Wells modules. They will probably try to test it, and tell you its still good (they always test out good for me). But when i put a fresh one in it fires right up. I admit, i just bought an accel module and it cost like $60.... When i first installed it (remote mount coil) the car wouldn't start, i took the dist. off and checked the connections and the white jizz on the bottom. It fired up this was one week ago, and its still working. It still feels the same as the cheapo wells brand, so i suggest you save the money and buy good plugs and wires or maybe a MSD6AL box, although i think my box is the reason i burn up modules in the first place... its a catch 22 i think
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From: Streamwood, IL
Car: 1991 Camaro Z28
Engine: TPI 5.7 L
Transmission: 4L60 w/Vigilante 2,400 Stall
Axle/Gears: Girdled 10 bolt/3.23's
I've been running the Accel Module/MSD Coil combo since '01 with no problems. I've put roughly 70,000 miles on the old L98 with between 200-300 passes at the track.
I dont know why everyone bashes accel. The delco modules kept burning on me so I got an accel and it works great. I also have an accel coil 5 years and my old u groove plugs were about 3 years old before I just replaced them. I also have accel cap and rotor and extreme wires. I took the advice from people on this site that said the accel injectors sucked and the ford ones are good. So I got the ford ones and they are shorter than the stock ones and barely seal. I just got back from the track I ran 14.5 My car is bogging a low rpm because I put 24#s in. When I hit third it falls on its face for a bit before it takes off again. Im getting a chip from pcmsforless and expect to run mid 13s.
Guys I'm an electronics tech and I just wanted to warn you to make sure that you thoroughly clean all traces of the old heat sink compound off before you put new heat sink compound on.Like they said use the white stuff.The old stuff gets hard and will prevent the new component from from being able to transfer the heat it generates away.It will run for awhile then burn up.Make sure that surface is clean...
I want to change my opinion of these modules- was just towed in because the Pertronix 8 pin died on the highway. The stock GM module would drive the Jacobs Ultra coil reliably when the Accel module would not, and the Pertronix just died. I guess that MSD has the right idea using proven OEM stuff- I believe the GM Ramjet had a different variant module I couldn't get any info on it though. With all the different GM part numbers for the computer controlled 8 pin is there a 'hotter' module from the general or not? I don't know if running an 045 gap on G-powers will kill it too (vortec heads for a 89 k1500 TPI). These guys didn't even have to invent a 'new' module but copy and improve GM's module- I just don't get it, I want the advertised improvements but......once bitten twice shy.
Originally Posted by Xlr8torZ28
I just got off the phone with MSD. They do not make a module for the HEI with external coil.
I knew the MSD module looked to big, when I got it, but took the cap off anyway,(changeing a few on my vette's
me) and yup, wrong one. The module on there looks to be the original 95kmi one, or pretty old, as the nuts are really rusty. Is there another brand(besides Accel) that I should use, should I get a new delco, or don't fix it if it aint broke? Last edited by F&Ybodlover; Jun 1, 2006 at 09:55 PM.
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From: Santa Rosa, CA
Car: 90 IROC-Z
Engine: LB9
Transmission: M5 5spd
Axle/Gears: 3.42 POSI
I guess I wasn't very clear on my last post!!!! (sorry) I have the small cap dist in my car without the coil in the cap. I had two of the accel mods in my stock dist, and both were junk. They both burned up on me. I was not a happy camper, so I bought a MSD complete dist for my car. It works awsome. I guess I should have went that route since I am running a msd dist, and 6al box in my 70 chevelle ss 454. Msd is the best stuff I have used. Just my
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