bigwes

i have been surfing the net looking to find something that i can HP to my GS4, and i came across some NGK irdium spark plugs. i was wondering if they are worth getting? are they goin to give me any type of added HP??

5t341th

iTrader: (16)

those are oem replacements. u gain hp that u would have lost if your old plugs were bad

bigwes

r there any racing spark plugs for the GS that would give me any added HP

GS4_Fiend

iTrader: (22)

The purpose of the spark plugs is to pull the secondary ignition system to ground to complete the circuit. That's it. Why buy anything else other than OEM?

vwynn

iTrader: (4)

Tenzo R Sparkplugs are perdy sick. Race car


jk

You usually dont see much HP gains through sparks. just get OEM replacements and save your money on headers or osmething

Dawa

iTrader: (5)

after a few years research/debate/etc i came to my own personal conclusion that the main thing the exotic element/metal plugs do is last longer thus reducing maintenance time associated with spark plug replacement.

99 GS3

iTrader: (14)

Higher compression modified engines or big turbo engines can have varying benefits from different types of plugs and plug gaps to help improve idling or spark blowout, but a stock engine (intake and exhaust don't count) should just be using the proper denso or equivalent plug.

bigwes

thanks for all the responses. at least i know now that ill be able to save a little bit of extra money

SSxblazer

To be a little off topic.


Can someone link to me the cheapest price on NGK iridium's?


Or is Advanced Auto and all the other chains about the same price?


edit: And better than OEM plug wires? I would want to go thicker than OEM.....

99 GS3

iTrader: (14)

Rockauto.com usually has dirt cheap prices on plugs.

Here is a 5% coupon: 86109267092539 just paste it in the 'where did you hear about us" field. (expires may 6 2012, but another will be released on the 7th, as there is always a valid 5% code available)

The GS has coilpacks so there are no sparkplug wires (well the wasted spark jump wires, but they are part of the pack) The stock coilpack system can push 800+hp no problem so no reason to upgrade. If anything an ignition amp like the HKS DLI is what is used to boost the output, or some people have switched to the jza80 COP packs, but the difference from the WS triple pack setup is arguably marginal if they are in good condition.

I ran iridium on the stock engine and it ran fantastic, but once boosted I've ran iridium and copper, and the coppers idle smoother and the engine runs noticeably stronger with the copper, but that's just my particular car, lots of people run iridium on their boosted cars just fine.

Dawa

iTrader: (5)

Research the part number and then search google. Have u looked at eBay or amazon?

raytseng

shipping usually can be the killer in terms of price, so you maybe better off buying from the same source for all the products you need and thinking of other things you might use in the future..

but yea, google is your friend; you got to put in some effort into it...

SSxblazer

Would rather hear it from a member here on what they used (part number) and cost......


Trying to get opinions, not so much facts at this time.

raytseng

Here's what you do.

Go to www.sparkplugs.com. Look up all the possible plugs you could use.

The put each of those part numbers into Search of this forum, and find the threads that talked about that plug.

But I'll sum it up for you. Everyone with a pretty much stock car is going to say sparkplug "x" worked great for me; so pretty much everyone self-justifies their purchase.

The only technical debate that I recall is whether you should use dual ground plugs with the gs300 due to the way it's coil ignition system works. However, even there, people who've used iridium still say despite the technical details, the single prong still "works great" no problems.

here is thread with the posts on "wasted spark ignition" for the 300:
https://www.clublexus.com/forums/per...Spark+Ignition

merlin911

i put some E3 plugs in my gs4 u notice a power gain but its not gonna blow you away, id say its worth it