#@%# Fouled Plugs Again

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Dec 31, 2002 | 04:43 PM

BLACKONBLACKZ06

Thread Starter

Instructor

Joined: Dec 2000

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From: Columbus Indiana

#@%# Fouled Plugs Again

10K miles on the engine since rebuild...heads, cam, pistons etc.
The first time it happened was at 100 miles with racing plugs originally...
They then replace the plugs with stock and the car had been running
perfectly.... until last night....
Does that seem normal with a H/C setup?
Is there a better/hotter plug?
:seeya

Dec 31, 2002 | 05:13 PM

C5Noir

Safety Car

Joined: Jan 2000

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From: Midlothian, VA

Re: #@%# Fouled Plugs Again (BLACK/BLACKZ06)

Sounds like you're WAY rich on the A/F. Can you atap it for us and tell us what your LTRIMs and WOT O2 readings are?

Dec 31, 2002 | 07:00 PM

Avanti

Race Director

Joined: Mar 2001

Posts: 19,965

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From: Bonneville Salt Flats

Re: #@%# Fouled Plugs Again (C5Noir)

...or just put in the next hotter heat range, and if they melt you'll know they weren't right! :yesnod: But, seriously--unless you are running under serious load for longer periods you may find a hypo engine needs a warmer STREET plug. Don't forget to change to a colder one for competition, though. I've raced engines that had to be warmed up with a "hot" plug and cold ones swapped in before competing.

BTW, 10K on plugs in a competition engine is not bad, at all.

All the best and HAPPY NEW YEARs! :cheers:

[Modified by Avanti, 6:01 PM 12/31/2002]

Dec 31, 2002 | 08:44 PM

MelloYellow

Le Mans Master

Joined: Apr 2000

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Re: #@%# Fouled Plugs Again (Avanti)

Which plugs?
Gap?
Which MAF?

Jan 3, 2003 | 05:48 PM

BLACKONBLACKZ06

Thread Starter

Instructor

Joined: Dec 2000

Posts: 218

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From: Columbus Indiana

Re: #@%# Fouled Plugs Again (BLACK/BLACKZ06)

OK... :crazy:
After reading several articles here and there...sounds like the NGK TR6
plug is what I should be using....
The Question is "what gap should I start at?"... :thumbs:

[Modified by BLACK/BLACKZ06, 4:52 PM 1/3/2003]

Jan 4, 2003 | 12:51 PM

lost

Drifting

Joined: Jul 2002

Posts: 1,613

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From: Spring Tx

Re: #@%# Fouled Plugs Again (BLACK/BLACKZ06)

I thought someone would have pointed out that the TR6 is one range colder than the standard replacement TR55.

Jan 4, 2003 | 09:31 PM

BLACKONBLACKZ06

Thread Starter

Instructor

Joined: Dec 2000

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From: Columbus Indiana

Re: #@%# Fouled Plugs Again (lost)

Dang....No problem changing out the plugs....butttt
After removing all the plugs #3 was fouled really bad and Thought I had it made...After installing the TR6 the engine was still running like SHi#
So off I go to get a set of stock plugs gap @ .055...installed and the engine still runs bad. By this time changing the plugs is a snap :lol:
Let it run for a few min. and pulled #3 and it was soaked...
Guess which valve spring i'm using?
I had a 941 break before and afraid thats what it is this time also...

Jan 5, 2003 | 12:00 AM

388 SOLid RoLLeR

Pro

Joined: Sep 2002

Posts: 500

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From: Mississauga ONT

Re: #@%# Fouled Plugs Again (BLACK/BLACKZ06)

guys where can i find out about heat ranges & plugs?? id liek to know, i havnt really searched but it dont say on the packages/boxes ... or does it?

plugs im interested about are the accel u -groove and the bosch +4.