C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Cap and Rotor recommendation?

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Old Apr 6, 2010 | 11:39 AM
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Default Cap and Rotor recommendation?

I'm tuning up the car, getting ready to roll for spring and summer.

I'm planning on replacing the cap and rotor and was wondering if I should get one of those "Danger High Voltage" power cap/coil pieces from Ecklers. Or will a Delco piece be fine? I've got a ZZ4 in the car with Rapid Fire plugs and new Belden plug wires. I'm planning on having my L98 rebuilt to a 383 and putting it back in and will swap the dizzy back to that engine in the future. Any suggestions?
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Old Apr 6, 2010 | 01:50 PM
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OEM AC Delco
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Old Apr 6, 2010 | 02:16 PM
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Sorry to interrupt your post, but what does it mean to rebuild your L98 to a 383? Will the engine look the same? I assume this means more horsepower. How much more are you going to get? Sounds like a great job. Good luck.

Whitecloud said that.
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Old Apr 6, 2010 | 02:44 PM
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It's best to get a cap and rotor with brass terminals. I'm not sure if the AC Delco as that or not.
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Old Apr 6, 2010 | 04:46 PM
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Whitecloud, that means lots of time and $$ going towards a project that wont reap the same investment when sold. So, if you look at it- it looks like a bad investment. Physically look different? Yes, I may paint it red and have different heads and a different intake on top. The main changes go inside the engine.

Rebuild involves a lot of machine work to make sure the block is sound and ready to accept the different internals. A 383 involves boring .30 over and a crank with a longer throw.
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Old Apr 6, 2010 | 09:37 PM
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Can't tell if this is a joke post or not but yes like Pete said OEM Delco replacement parts.
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Old Apr 6, 2010 | 11:16 PM
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Originally Posted by DarkBlue88
Can't tell if this is a joke post or not but yes like Pete said OEM Delco replacement parts.
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Old Apr 7, 2010 | 12:31 AM
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Checked at Oreileys today and they have a Borg Warner cap and rotor for $50 not including the coil. Do I need a new coil? Should I still go OEM over this?

No... not a joke post.
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Old Apr 7, 2010 | 12:53 AM
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Originally Posted by DarkBlue88
Can't tell if this is a joke post or not but yes like Pete said OEM Delco replacement parts.
Haha. I always find it funny how people refer to AC Delco as OEM, which is incorrect. For instance, if you get an AC Delco water pump, you are NOT getting OEM. For OEM, you need to get an Airtex, with regards to an L98. Having said that, it doesn't mean AC Delco can't slap their name on an OEM made part. Most of the time, AC Delco is just aftermarket. Obviously, when in doubt. I'd look at AC Delco. But I wouldn't refer to them as OEM.
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Old Apr 7, 2010 | 09:55 AM
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Originally Posted by joshwilson3
Haha. I always find it funny how people refer to AC Delco as OEM, which is incorrect. For instance, if you get an AC Delco water pump, you are NOT getting OEM. For OEM, you need to get an Airtex, with regards to an L98. Having said that, it doesn't mean AC Delco can't slap their name on an OEM made part. Most of the time, AC Delco is just aftermarket. Obviously, when in doubt. I'd look at AC Delco. But I wouldn't refer to them as OEM.
Interesting... definitely food for thought! I just saw Airtex on the Summit website and thought, "never heard of them, must not be any good."

What does everyone think of a clear cap?
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Old Apr 7, 2010 | 10:49 AM
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Originally Posted by joshwilson3
It's best to get a cap and rotor with brass terminals. I'm not sure if the AC Delco as that or not.
Whatever you get, be sure to look at the terminals on the cap. A good cap will have copper terminals; the cheap crap has aluminum or brass terminals. Likewise on the rotor. Copper is a better conductor of electricity.

Also, silicone dielectric on the boots and antisieze on the threads is a good thing. A little silicone dielectric on the bottom lip of the cap will help keep water out of the cap, too.
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Old Apr 7, 2010 | 12:43 PM
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Seems as though most caps are aluminum or brass. Copper terminals are harder to find as I'm searching around the net. Maybe I'm searching in the wrong places?
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Old Apr 7, 2010 | 01:07 PM
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I like Accel .. here is a couple I found for ya

http://www.summitracing.com/parts/ACC-8131/



http://www.summitracing.com/parts/TAY-918131/

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Old Apr 7, 2010 | 01:57 PM
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Originally Posted by onedef92
Whatever you get, be sure to look at the terminals on the cap. A good cap will have copper terminals; the cheap crap has aluminum or brass terminals. Likewise on the rotor. Copper is a better conductor of electricity.

Also, silicone dielectric on the boots and antisieze on the threads is a good thing. A little silicone dielectric on the bottom lip of the cap will help keep water out of the cap, too.
Hmm. All I've ever heard were aluminum and brass terminals. And to go with brass. If they make copper ones that are better, then I guess that would be the way to go. What caps/rotors have copper terminals? I've only seen brass terminals on the better caps/rotors.
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Old Apr 7, 2010 | 02:27 PM
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Originally Posted by joshwilson3
Hmm. All I've ever heard were aluminum and brass terminals. And to go with brass. If they make copper ones that are better, then I guess that would be the way to go. What caps/rotors have copper terminals? I've only seen brass terminals on the better caps/rotors.
The Accel models shown in those pics have copper terminals. Go with those.
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Old Apr 7, 2010 | 08:16 PM
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Chaos, thanks! I've actually looked at the Taylor as the price is great. I know it's crazy but I just couldn't put the ugly brown one on the car.

What about this one?
http://www.summitracing.com/parts.aspx?sku=MRG-1263C

Last edited by 89Corvette6spdFX3; Apr 7, 2010 at 08:19 PM.
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Old Apr 7, 2010 | 08:17 PM
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Originally Posted by onedef92
The Accel models shown in those pics have copper terminals. Go with those.
Actually they are both brass terminals.
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To Cap and Rotor recommendation?

Old Apr 7, 2010 | 09:35 PM
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Originally Posted by 89Corvette6spdFX3
Chaos, thanks! I've actually looked at the Taylor as the price is great. I know it's crazy but I just couldn't put the ugly brown one on the car.

What about this one?
http://www.summitracing.com/parts.aspx?sku=MRG-1263C
That is kinda cool .. I don't like the Accel color either but they have always been good to me.
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Old Apr 7, 2010 | 09:52 PM
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Originally Posted by 89Corvette6spdFX3
Chaos, thanks! I've actually looked at the Taylor as the price is great. I know it's crazy but I just couldn't put the ugly brown one on the car.

What about this one?
http://www.summitracing.com/parts.aspx?sku=MRG-1263C
That does look interesting. Though I seem to recall many years ago people saying to avoid the clear caps. I think they had a tendency to crack or something. But I could be wrong as it has been many years ago.

Here's something I found:

http://www.montecarloss.com/communit...&Number=748749
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Old Apr 7, 2010 | 11:57 PM
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It is made of a different materal. Polymer Carbonate plastic... same stuff headlights and water bottles are made of. The others are made of Alkyd or Thermoplastic.
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