ignition upgrade? L-98
Thread Starter
Burning Brakes
Joined: Apr 2001
Posts: 992
Likes: 0
From: Atlanta GA
ignition upgrade? L-98
I want to upgrade my coil, wires, plugs, cap & rotor.... What is a good setup on a buget? Or do I need to....????? What are the best plugs for a 1988, L-98.....?
Thanks
Pete
Thanks
Pete
Le Mans Master
Joined: Feb 2002
Posts: 5,970
Likes: 20
From: San Marcos Texas
Re: ignition upgrade? L-98 (apollo30346)
i like the bosch platinum plugs, msd makes a great wire set, they are 8.5mm part #3145-9 summit or jegs have them for $63, and an accel cap and rotor.
p.s. almost forgot,upgrade your coil with and accel or msd .in cap coil. hopes this helps.
[Modified by chriswtx, 12:19 PM 2/16/2002]
p.s. almost forgot,upgrade your coil with and accel or msd .in cap coil. hopes this helps.
[Modified by chriswtx, 12:19 PM 2/16/2002]
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Re: ignition upgrade? L-98 (apollo30346)
WHY??? Is your engine pretty stock otherwise? I had a paragraph or two, I was prepaired to write on this subject. I just realized that I was about to offend too many people. Nevermind.
Burning Brakes
Joined: Dec 2001
Posts: 901
Likes: 15
From: Punta Gorda, FL
Re: ignition upgrade? L-98 (apollo30346)
All above giving good advice. You don't need expensive race parts for a stock engine. I have premium wires and just switched to Rapidfire plugs. Noticed a difference in idle quality. Recommend you try them.
Drifting
Joined: Nov 2001
Posts: 1,783
Likes: 2
From: Latham NY
Re: ignition upgrade? L-98 (apollo30346)
I'm using a Conrad cap and rotor from Autozone. It has brass contacts inside and is red in color. Plugs are Autolite Double Platnum. Wires are stock now, but I want Taylor Spiro-pro wires. Idle is smooth for a car with 135,000 miles. Make sure the timing is set correctly too. If you are changing the coil, you may also want to get a matching ignition module.
Team Owner
Joined: Sep 2001
Posts: 62,160
Likes: 1,733
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: ignition upgrade? L-98 (Bluevette85)
cap and rotor should be a stock replacement, just whatever Autozone has. Wires-Taylor's, MSD's are best, Plugs-NGKs, Bosch Platinums, Rapidfires are what i have in mine.
Le Mans Master
Joined: Jul 2001
Posts: 8,183
Likes: 3
From: Santa Maria, CA
Re: ignition upgrade? L-98 (apollo30346)
Don't underestimate the stock HEI. But still, it doesn't hurt to upgrade alittle. I can't recommend Accel caps. I have thrown away 3 for post corrosion. Am using an MSD, very happy with it. The MSD wires are pricey. Also I have a Performance Dist. "dynamodule", AC Delco pick up coil, Perf. Dist/Davis coil, cut-back electrode AC Delco plugs. I'm pretty happy with it. But, bottom line, IMHO, the stuff from Autozone will work just fine too. Plus, you're not paying for a fancy name brand like "MSD".
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Thread Starter
Burning Brakes
Joined: Apr 2001
Posts: 992
Likes: 0
From: Atlanta GA
Re: ignition upgrade? L-98 (89 Paul in cal)
Thanks to all on the replies....All the parts on my car are only 10 months old, I was just thinking of upgrading them.... I have AC Delco plugs (cut back) in there but are the same age....So I thought I would go ahead and change them out and refresh them... They are just regular stock plugs... So I really wanted a better quaility of plug or just what works the best in my car.. Platinum, rapid fires, NGK, cut back or not...etc.....Just want to freshen it up...I would like the thinker wires though....
Thanks again
Pete
Thanks again
Pete
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: ignition upgrade? L-98 (apollo30346)
The HyperTech coil/cap/rotor are much higher output than stock, bolt right up and look stock. The only issue is that you will have to open up the inside of the ring that sits atop the stock dist and holds the wires in place.
MSD 8.5mm wires have very low resistance and are a great product. I went with TPIS wires for a stock look and lower resistance than stock.
Stay with the cut-back plugs; if you do the above upgrades, gap em to .045".
BTW, did you notice any increase in trip fuel economy with the cut-back plugs? My time slips show the HP gain but don't have logs on mileage. I just know that now the Vette logs 31-32mpg on a trip while bone stock it registered 29+mpg on a long trip.
MSD 8.5mm wires have very low resistance and are a great product. I went with TPIS wires for a stock look and lower resistance than stock.
Stay with the cut-back plugs; if you do the above upgrades, gap em to .045".
BTW, did you notice any increase in trip fuel economy with the cut-back plugs? My time slips show the HP gain but don't have logs on mileage. I just know that now the Vette logs 31-32mpg on a trip while bone stock it registered 29+mpg on a long trip.
Advanced
Joined: Apr 2001
Posts: 88
Likes: 0
From: oakdale,mn,u.s.a.
Re: ignition upgrade? L-98 (apollo30346)
I am not positive if it is just on 85 vettes, but I read several service recalls/bulletins that said the stock module is a low quality part. I replaced the module with an aftermarket part after mine fried up. 45.00$ I have been told by several people it is a good idea when installing an aftermarket ignition coil.
Pro
Joined: Dec 2000
Posts: 513
Likes: 30
From: Tonawanda, NY USA
Re: ignition upgrade? L-98 (vettemech85)
I installed the Hypertech unit on mine, and replaced the ignition module... I found that Summit had the best price on the Hypertech unit... Good Luck!
:cheers:
:cheers:
