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Old 09-18-2005, 09:50 PM   #1
012.5RS
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Default How is this possible?

I just did my plugs/wires/air filter today. first off this is the easiest plugs ive ever done. even though i had to take the air intake tubing and washer off to get to them, that went smoothly and there werent any thrown wrenches. but anyway..... I pulled out Bosch Platinum plugs, fried pretty good, looked like normal wear though just old. I put in NGK V Powers(stock heat range plug), Borg Warner 7mm wires, and a Purlator air filter. Now after changing just these things when i took the car out it was actually faster(i figured it feel a little faster since the old plugs were so bad) but it was faster than i thought. It revved a lot quicker(obviously), but the thing that makes me wonder is that it is actually louder... I've never changed plugs/wires/air filter and had it actually be this faster and especially louder. pls dont think im some moron, maybe subies do this but all the cars ive ever worked on have never done this. I'm not saying i gained 15hp... so dont think im some dumb ricer kid.
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Old 09-18-2005, 10:16 PM   #2
shoeler25
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Changing the air filter to a higher flow I think would explain the extra noise. Im goin with the same notion that a CAI makes it louder. And if your performance gain was that great your previous plugs/wires were probably fried a little more than you thought.
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Old 09-18-2005, 10:33 PM   #3
svek
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i switched to a K&N and it completely silenced my car
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Old 09-18-2005, 10:54 PM   #4
99subi
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your car was probabdly running like crap and now its running normally
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Old 09-18-2005, 11:28 PM   #5
Handsdown
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yeah, fried Bosch Plats(which means any Plats that have served in an EJ25 for more than 100 miles) will totally kill the performance of the car. the v-powers are probably 95% responsible for the gain in performance.
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Old 09-19-2005, 07:24 AM   #6
012.5RS
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oh ok, just seems like a lot, but i guess it must be it. are the iridium's worth it? I cant see spending $6 a plug, atleast untill i upgrade to a MSD Ignition and all.
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Old 09-20-2005, 12:26 AM   #7
HeyChris
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I luv my cheap NGK coppers..

I follow my father's advise back when I was learning to crash my first go kart...

Japanese motor = NGK/NipponDenso
American = Champion/Autolite/Motorcraft
German = Bosch...

And Splitfires are just pieces of crap... My opinion, not my father...

Keeping the same plug w/same family of motors makes the engine happier.
[Needs an engrish spin on it for some reason...but can't convert]

Chris.
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Old 09-20-2005, 09:51 AM   #8
Calamity Jesus
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Quote:
Originally Posted by 012.5RS
oh ok, just seems like a lot, but i guess it must be it. are the iridium's worth it? I cant see spending $6 a plug, atleast untill i upgrade to a MSD Ignition and all.
Iridiums are about like the platiums. Rare metals like those will self-clean under very high combustion chamber temps.. making them last an extra long time. Unless you're running forced induction or nitrous, your temps probably won't get high enough. Just stick with changing out the cheap plugs every year.

I've done the same thing before with the V-Powers. Pulled out platinums from PO and put in V-Powers only to find that the car actually has some balls.
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Old 09-20-2005, 10:16 AM   #9
Calamity Jesus
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Quote:
Originally Posted by HeyChris
I follow my father's advise back when I was learning to crash my first go kart...

Japanese motor = NGK/NipponDenso
American = Champion/Autolite/Motorcraft
German = Bosch...
While I think Bosch makes some good stuff, I don't like their plugs at all.

It's been discovered that the Autolites are the tops when it comes to some old BMW motors..

Last edited by Calamity Jesus; 09-20-2005 at 10:28 AM.
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Old 09-21-2005, 09:30 PM   #10
John2.5RS
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Default I have to disagree

Bosch DESIGNS some good stuff, to bad they make crappy parts. VW had to replace a million or so ignition coils because bosch got cheap with the coil adhesive(sp?) and the damn things fall apart! Also, the 98 passats ignition control module would fail ($500+part) would fail and the engine would misfire constantly. They have good ideas, poor production IMO. But that's my opinion, I'm a certified VW Touareg, Phaeton, & Electrical specialist, so what do I know. I can work on them, rebuild/rewire them, & love to drive VW, but I honestly can't see myself owning anything other than a Subaru or toyota(lexus). I'm all about cheap maintanance parts.
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