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Spark plugs + wires add any hp? #275953 Sep 15, 2:01pm Sep 15, 2:01pm
Joined: Apr 2004
Posts: 312
Jacksonville, FL
2kVeilsideGTS OP
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2kVeilsideGTS OP
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Jacksonville, FL
Spark plugs + wires add any hp?
these add like 1 hp or anything? or is it just maintenence to replace. because im seeing many differentiated products that each company sells saying another is better? just kinda lost here

Re: Spark plugs + wires add any hp? [Re: 2kVeilsideGTS] #275954 Sep 15, 2:04pm Sep 15, 2:04pm
Joined: Oct 2003
Posts: 520
DSM, IA
silverOOgts
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silverOOgts
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DSM, IA
i dont think celicas have plug wires, they may, but i think there is a coil directly on each plug. I really know nothing about cars though


Where did my sig go? help me find it..........
Re: Spark plugs + wires add any hp? [Re: silverOOgts] #275955 Sep 15, 2:41pm Sep 15, 2:41pm
Joined: Nov 2002
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NW, PA
grcelica
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2001 Toyota Celica GT
grcelica
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Originally Posted by silverOOgts
i dont think celicas have plug wires, they may, but i think there is a coil directly on each plug. I really know nothing about cars though


each spark plug has an individual "harness".

Re: Spark plugs + wires add any hp? [Re: grcelica] #275956 Sep 15, 2:58pm Sep 15, 2:58pm
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Colchester, Illinois
2000 Silver Toyota Celica
Kenton2k
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If you're going to get more spark plugs... opt for the NGK Iridium plugs... you should be able to notice a difference.. especially if your plugs are old. Take a look at a regular plug compared to the Iridiums and you'll notice a big difference visually thumbsup

Re: Spark plugs + wires add any hp? [Re: Kenton2k] #275957 Sep 15, 3:23pm Sep 15, 3:23pm
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Saint Louis, MO
slidr
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Only way they would add any power is if the ones you replaced were old or dirty.


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Re: Spark plugs + wires add any hp? [Re: slidr] #275958 Sep 15, 6:26pm Sep 15, 6:26pm
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NW, PA
grcelica
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I put in the Bosch Triple platinums. I thought I could tell a difference, but it might have been my imagination.

Re: Spark plugs + wires add any hp? [Re: grcelica] #275959 Sep 15, 6:28pm Sep 15, 6:28pm
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Fontana, CA
Lucky_317
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if you get new plug wire sfor you r celica please post pics of the install smile and then let us know how your car feels when youre done thumbsup


Best 60' 1.959 best 1/4 - 13.7 @ 101mph
Re: Spark plugs + wires add any hp? [Re: Lucky_317] #275960 Sep 15, 6:35pm Sep 15, 6:35pm
Joined: Aug 2003
Posts: 4,278
Pomona, CA
Virgilson
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maybe if you have a high amount of engine mods...then spark plugs will give you maybe 1-2hp

Re: Spark plugs + wires add any hp? [Re: Virgilson] #275961 Sep 15, 6:44pm Sep 15, 6:44pm
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Jacksonville, FL
2kVeilsideGTS OP
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Jacksonville, FL
im gonna get new plugs cause mine have 50k miles on them. as for the wires something tells me we don't have them..hehe i go look next time im outside. yeah but ima work on getting an Intake before ignition. got headers and exhaust because damn good deals but never found a good deal on Intake:( so i need to buy full price

Re: Spark plugs + wires add any hp? [Re: 2kVeilsideGTS] #275962 Sep 16, 10:36am Sep 16, 10:36am
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Your Iridium plugs need changing at about 60,000 miles give or take. I noticed improvement when I changed mine.

And no, you don't have plug wires. You have 4 coils which run off the wiring harness & attach directly to the plugs. thumbsup

Re: Spark plugs + wires add any hp? [Re: Haulin_A_Doo] #275963 Sep 16, 10:50am Sep 16, 10:50am
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ATL GA
AZZKIKR
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um..you guys...www.ignitionsolutions.com...they make a direct coil plug that is supposed to put out twice as much spark as the OEM coils, and yes, they are a direct replacement coil...they have them for the GT and the GTS...look under the application section...only problem is that they are $580.00 angry angry

Re: Spark plugs + wires add any hp? [Re: AZZKIKR] #275964 Sep 16, 11:36am Sep 16, 11:36am
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Saint Louis, MO
slidr
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slidr
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Originally Posted by AZZKIKR
um..you guys...www.ignitionsolutions.com...they make a direct coil plug that is supposed to put out twice as much spark as the OEM coils, and yes, they are a direct replacement coil...they have them for the GT and the GTS...look under the application section...only problem is that they are $580.00 angry angry
What the hell is twice as much spark gonna do?


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Re: Spark plugs + wires add any hp? [Re: slidr] #275965 Sep 16, 11:37am Sep 16, 11:37am
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Originally Posted by slidr
Originally Posted by AZZKIKR
um..you guys...www.ignitionsolutions.com...they make a direct coil plug that is supposed to put out twice as much spark as the OEM coils, and yes, they are a direct replacement coil...they have them for the GT and the GTS...look under the application section...only problem is that they are $580.00 angry angry
What the hell is twice as much spark gonna do?


Cleaner combustion, slightly more power. thumbsup

Re: Spark plugs + wires add any hp? [Re: Haulin_A_Doo] #275966 Sep 16, 12:19pm Sep 16, 12:19pm
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yeah, I wasn't sure...I know that MSD made a difference on my last vehicle, and this pretty much does the same thing...its just entirely too damn expensive

Re: Spark plugs + wires add any hp? [Re: grcelica] #275967 Sep 16, 12:48pm Sep 16, 12:48pm
Joined: Dec 2003
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CA, USA
l2pdrums
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Originally Posted by grcelica
I put in the Bosch Triple platinums. I thought I could tell a difference, but it might have been my imagination.
I thought you should only put iridium plugs on the celica?

Re: Spark plugs + wires add any hp? [Re: l2pdrums] #275968 Sep 16, 1:22pm Sep 16, 1:22pm
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El Paso, TX
EuRoBoYGT
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im going to get the HKS spark plugs soon thumbsup


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Re: Spark plugs + wires add any hp? [Re: EuRoBoYGT] #275969 Sep 16, 3:27pm Sep 16, 3:27pm
Joined: May 2002
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Los Angeles, CA
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wouldn't "twice as much spark" lead to a shorter lifespan on the spark plugs? (faster erosion) similar to how the milti-head plugs commonly found in rotary engines are notorious for confused


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Re: Spark plugs + wires add any hp? [Re: isaac] #275970 Sep 17, 9:52am Sep 17, 9:52am
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I think its all pretty minor, especially in a Celi, our iginition system is top notch anyway. thumbsup

Re: Spark plugs + wires add any hp? [Re: Haulin_A_Doo] #275971 Sep 17, 10:02am Sep 17, 10:02am
Joined: Jul 2003
Posts: 500
Salisbury, MD
2002 Spectra Blue Mica Toyota Celica GTS
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Just get some decals. what's what I did and must have gotten 40-50whp out of them. rofl rofl spineyes

No spark plugs will not give you any hp gain unless your old one are just so far gone. But even then it will bring it back up to stock hp.


I'm gonna take your little Civic. Dust it off. Turn it sideways and stick it straight up you candy A*s.
Re: Spark plugs + wires add any hp? [Re: GTSHYPR] #275972 Sep 17, 2:34pm Sep 17, 2:34pm
Joined: May 2003
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Lisle, IL
Rave669
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First off, our ignition systems use what's known as a COP setup, or, coil on plug.

Our cars don't use plug wires, this is because individual ignition coils are connected directly to each spark plug. no plug wires, and a direct connection to the coils makes for an excellent ignition system, better than anything the aftermarket offers. the whole reason toyota, and many others, chose to go with this setup is it's far more efficient and reliable. no spark plug wires means no extra resistance (something which almost all spark plug wires have)

On a conventional system, with plug wires, even if you add some nice fat racing plug wires (like the 9MM jacobs racing wires I installed on my escort) you will still get plenty of resistance from the wires. This is because highly conductive wire, like copper core wires, produce lots of interference and signal bleed, which will produce unwanted noise through your stereo system, not to mention screw with all sorts of electronic devices like the ecu, pacemakers, etc. this is why even racing wires have lots of shielding and resistance to cut down on unwanted interference.

While some race cars have used copper race wire with good results, the interference that is produced with them makes it illegal to use them on the street or in most sanctioned forms of racing.

by putting the coil directly on the plug, you get the benefits of no resistance with none of the signal bleed. This is why companies like SplitFire make aftermarket conversion kits for cars like the 240SX, which use a remote-coil ignition system.

The GTS for certain come with Denso Iridium plugs from the factory, not sure about the GT, but I think it may come with them from the factory too.

The only other thing I could reccommend is to go with an ignition amplifier of some sort, or new, high-performance coils (which aren't available as far as I know), but seeing as the coil is already on the plug, an increase in coil Performance may not make that much of a difference, if anything, it'll make your spark too hot.

If you run nitrous oxide or Turbo, you need a cooler plug, or else there will be detonation. Switching to nitrous plugs, or platinum multi-electrode plugs will help. Stay away from copper and irridium plugs on FI/Nitrous applications, as the plugs retain too much heat, and will set off the A/F mixture before it sparks (pre-detonation).

Copper plugs are the worst, in our engines, they can get so hot that the electrodes can melt!!! don't mess with copper plugs unless you know what you're doing, and intend to tear down the engine on a regular basis (think dedicated track car)


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