NGK's

[66mgb]

Ok - after reading the squabble on Bosch platinum plugs (I've got +4's installed on my Q), I'm willing to try the NGK plugs to see if there's a difference.

Where's the cheapest/best place to purchase?

Why not Denso's?

Thanks in advance for your sage advice.
Modified by 66mgb at 8:55 AM 6/29/2006

[Rex]

Where's the cheapest/best place to purchase?

Thanks in advance for your sage advice.

[jamesmost]

sparkplugs.com

[irax]

http://www.buyautoparts.com

http://www.acarparts.com

[yodawill2000]

So far Sparkplugs.com is the cheapest (OEM Plug)Keep the links coming !!

[AZhitman]

Call sparkplugs.com. Talk to Natasha, tell her you're a member.

Not only is she cool as hell, but they support our forums!

[yodawill2000]

Discount for Nico members ??

[AZhitman]

Yes. NICE discount.

[yodawill2000]

SHWEEEET !!!!

didnt want to dig too deep into the Corona budget

[Jeff Williams]

Bosch... Take a look at #5!

[yodawill2000]

That happen in your car ??Spooooky

[66mgb]

Yikes - WTF???? #5 have a bad injector too?

[Jeff Williams]

No, I did a power balance after that, and it came out fine. All the plugs looked like they had been fired in a Kiln. #5 just gave up the ghost first. I drove it about 150 miles to work and back, before I could get her to the shop. I just knew I had a bad injector. In fact, I had alread ordered new injectors, and had the shop scheduled for the work, when I decided to get rid of the Bosch plugs. When I pulled the plugs, I was mortified. I put the NGK's in, and she ran like a top!

This was Layla. She had almost 250,000 miles on her when I sold her, and she was STRONG. She would still beat Lola from 50 to 140 MPH.

This is why I can say that Bosch plugs just don't work with the Q. When I bought Lola, I got new plugs. The last guy had put Bosch plugs in her too.

[Jesda]

When I took Mandy 1 up to Wes's marina to have the plugs replaced, switching from a mix of Bosch and NGK to all NGK made a huge improvement in idle and performance. Its as if before I was driving at half throttle. The NGKs we pulled didnt look terrible yet.

[yodawill2000]

Man its luck all that metal blew out without taking an exhaust valve with it ..

Good info .. Nuttin' but OEM plugs for me !!!

[qsiguy]

Anyone have the part number/model for the plug we want? I see only "NGK Platinum" on q45.org and nobody's metioned it yet on this thread.

[yodawill2000]

on sparkplugs.com you can drill down to the plugs for your make and year They also show which one is OEM spec .

The application search I believe

[KU4FIZE]

OMG so now the densos are not good too? I just went and changed the bosch with the densos. They didnt have the NGK. I have no choice anyways cuz Monday i'm leaving to vegas to celebrate July 4th I'm driving the Q from L.A. to there, so gotta use what I have, no time for delivery. Hopefully it'll be fine.

[66mgb]

The NGK Double Platinum's are OEM?

How about switching to the Iridium - I understand Iridium won't collect deposits - besides it sounds so cool!

Anyone indexing their plugs so the gap is towards the intake valves?

Was that last question anal retentive?

[heywier427]

my fathers friend did that to his race car. he went out and bought like 80 spark plugs, and with the heads off, went throgh all of them to get the spark plugs all in the same pattern. thats anal!!!

[66mgb]

my fathers friend did that to his race car. he went out and bought like 80 spark plugs, and with the heads off, went throgh all of them to get the spark plugs all in the same pattern. thats anal!!!

Huh? There's a much easier way to do it without taking the heads off. You only have to purchase the amount of spark plugs that the engine requires too!

[Q_SHIP]

My bosche's have been just fine for 30,000 miles now.

[maxnix]

My bosche's have been just fine for 30,000 miles now.

When was the last time you looked at them?

Known as a cetified VH engine killer. Read the posts.

[heywier427]

the heads were already off, and nobody said he was smart!

[66mgb]

I just ordered 8 NGK Iridium's from sparkplugs.com ($90 worth).

I'm eager to see what my +4's look like in light of Jeff's discovery.

I will post pix after the swap.

[maxnix]

OK, guys, like all the other threads say,stick with OEM specified NGK platinum, only adjusting the heat range if necessary. They were designed for the VH series.

Iridium are not designed for the VH series.

[elwesso]

The iridiums might be OK, but theyre roughlythe same price and theyre no different in performance..

The part number you want is PFR5G-11, or PFR6G-11 if you want a slightly colder heat range.

[Q_SHIP]

When was the last time you looked at them?

Known as a cetified VH engine killer. Read the posts.

Actually about 5,000 miles ago. All is well.

[66mgb]

I would be interested to read documentation on Iridium .vs. Platinum performance.

I can see why the +4 plugs can burn, since there is 4 times the surface area on the electrode to build up contaminants, but single electrode Iridium or Platinum shouldn't make a difference.