eatmydust

If my dist cap and rotor is old or going bad, could that cause my car to misfire when I hit the gas?

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86' IROC-Z
5.0L TPI
Spohn panhard bar and LCA's

Dan87IROC-Z

Yes, it sure can, it happended to me last week. I went down to my local Chevy dealership and for $35 I got a brand new AC/Delco cap and rotor kit. I installed them and the car runs great now. But beware, misfiring could also be caused by burned or damaged plug wires. So make sure to check things out before you go spending money.

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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End with 2.77:1 Gears.

Current Mods: LT4 HOT Cam, Comp Cams 1.52:1 Roller Rocker Arms, Edelbrock TES 1 5/8" Headers, Hooker 3" Aerochamber Cat-Back System, Performance Resource Chip, Accel Ignition, K&N Filters, JET TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET (w/o LT4 cam): 14.32 @ 97.7mph
(corrected for elevation)

Soon to Come: 7.625" 10 Bolt with 3.42s and Accel TPI Intake Base

eatmydust

I'm pretty sure it isn't the wires and plugs, cause I just put new ones on not even 500 miles ago. So thats why I think it is the cap and rotor. Is there any other brands besides AC Delco or are they the best brand? Is there a performance one that does anything special?

87iroczmd

if you don't have an aftermarket coil yet here is your chance, i got a hypertech 53000 volt coil(hottest for hei), it looks like oem, comes with cap and rotor all for 70 i think

86TransAmTPI

I totally agree,i also have the Hypertech coil and it came with their cap and rotor.Its a nice set up and worth every penny if you ask me.Mine ran me about $75.

87iroczmd

yeah, it looks exactly like the stock coil, it is the hottest they make for external hei, and it is a simple installation, no wiring changes, the distributor cap is better than stock too

eatmydust

Will it work with the same plugs and wires I have? Does it give any performance gains? I have a buddy that put on an aftermarket cap and rotor and it got so hot it would make the plastic soft and sometimes it was like it was melting or something. This cap won't do that will it?

86TransAmTPI

As far as i know it should work ith the same plugs and wires,but i fell if your gona go with the Hypertech cap and coil set up with all that voltage,why not go with better plugs and wires to get the full impact of the coil.I bought a set of Accel 8.8 300+ Race Wires and Bosch Platinum +4 spark plugs.I hear the coil helps throttle response and your car wont hesitate as much,and you burn fuel and all the way to red line with no missing and so on.I also hear the set up with bigger gapped and modified plugs can increase your HP 5-10.

MikeInAZ

The Hypertech cap/coil/rotor Part # HYP-4052 from Summit is a nice setup. It is complimented with some good Accel or MSD wires. You will not be wasting any money stepping up to this setup but if you still have the problems you speak of it is possible your distributor pickup coil is bad.

It is lined with a brittle paper that breaks down easily.

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Red 86 T/A 5.0 TPI (LB9/WS6)
~HyperTech Cap/Coil/Rotor/AFPR
~Derale Adjustable Fan Switch ~ 170° Stat
~Flow Matched Injectors ~ K & N Air Filter
~Ported Plenum ~ Pirelli 245/50/16
~SLP TB Airfoil ~All Else Stock

irocrob

Just upgraded mine from stock with cap & coil combo from Performance Distributors (D.U.I. - Davis Unified Ignition) in Memphis, TN. Cap & coil for $75 and I added an ignition module for another $50. I could really feel the extra power start after where the stock one gives up. Even with MSD 8mm wires and Bosch plugs that are around 2 1/2 years old. Wanted to go a different route other than Accel or Hypertech. I suppose my gamble paid off!!!

www.performancedistributors.com

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Rob Kowalski
85 IROC, 305 TPI, JET AFPR - 45 PSI, B&M Megashifter, B&M Shift Kit, 3.42 gears, SLP Airfoil, SLP 1 5/8 headers and cat back system, gutted cat, gutted airbox, MAF screens removed, K&N, more to come!!

[This message has been edited by irocrob (edited May 22, 2001).]

irocrob

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Rob Kowalski
85 IROC, 305 TPI, JET AFPR - 45 PSI, B&M Megashifter, B&M Shift Kit, 3.42 gears, SLP Airfoil, SLP 1 5/8 headers and cat back system, gutted cat, gutted airbox, MAF screens removed, K&N, more to come!!

86TransAmTPI

From what ive heard,the D.U.I. - Davis Unified Ignition is supposed to be the same as the Hypertech at up,same exact power coil,and same cap and rotor.I almost went with the D.U.I myself,but i figured for the same price,why not get the Hypertech since its a brand ive heard of a lot more.

Check out my Trans Am:
http://hometown.aol.com/italianknight178/index.html

VanWailin

I just got my Hypertech coil, cap, and rotor set(4052) today. Should i go ahead and gap my plugs up from the stock .035 gap to a .045? My engine is pretty much stock and i'm not looking to go to .050 and clip the electrode way. I heard plugs foul quicker and since its my daily driver i'm not looking to change plugs every week. Thank you for any help.

327_TPI_77_Maro

iTrader: (8)

Ha! Platinum +4s in a performance application? Thats a new one by me. Those are a gimmicky type plug designed to last forever since there is a lot of electrode material and each electrode sees less use than if there were only one. However, all those electrodes are shrouding the spark. You'd be much better off with a good copper plug.

'Shifter

iTrader: (2)

If your rotor gets bad enough, it can also kill your ignition module....

JRODRS

nice im going to replace my cap, rotor and coil with they hypertech, also my control module but im going with ac-delco on that one.