Sparks?????

Jbp · 08-15-2011, 12:59 PM

Any toughts on sparks on a 3.3T.K27.sc cams.No track yet.Only
Wekend Driving and late nights when no trafick.

Thanks in advace:Jocke

cole930 · 08-15-2011, 03:06 PM

Jocke,

I'm assuming your referring to flames out the back when you lift off the accelerator. That can be attributed to unburnt fuel igniting in hot cylinder heads when the throttle plate closes.

Cole

mark houghton · 08-15-2011, 03:22 PM

Or....are you asking about spark plugs - what to use?

cole930 · 08-15-2011, 04:36 PM

I was just dreaming of the day I can see flame out the back of a 930 again !!!!!

Cole

Jbp · 08-15-2011, 04:40 PM

Yes spark plugs is thath i want to now about.
Any sudgestions?

Thanks:Jocke.

cole930 · 08:56 PM

Ngk

r5671a-8
4554

N.G.K. Spark Plugs V-Power Racing Plug 5452 - R5671-8

When it comes to spark plugs, NGK is the World Leader. Makers of spark plugs, sparkplug wires and oxygen sensors for virtually every automotive, motorcycle, marine, industrial and small engine application, NGK dominates the world market. NGK is famous for the “V-Groove” sparkplug, the Iridium IX sparkplug and platinum plugs. NGK sparkplugs, wire sets and sensors are used for racing, high performance, sport compacts and light trucks. NGK Iridium plugs are exceptional for use in nitrous fueled, fuel injection and turbo charged engines. NGK is also the original equipment for the majority of the world's auto manufacturers. A substantial number of NGK Spark Plugs and oxygen sensors sold in the United States are made right here in America.

DSPTurtle · 08-15-2011, 09:37 PM

Ngk br8eix (5044)

DSPTurtle · 08-15-2011, 11:31 PM

Quote:

Originally Posted by cole930

I was just dreaming of the day I can see flame out the back of a 930 again !!!!!

Cole

Quick, somebody post a video for Cole. We got lots of flamers on this board

At least we used to)

smurfbus · 08-16-2011, 12:48 AM

Cole, I think you can have your flame moments if you care to retard the timing for some spirited runs and then lift off. After that dial the good running advance back. I found out I got rid of the highway boost issue just by dialing more advance, huh. I don't want to dial it advanced more until I can get my timing light calibrated against some other good workin light.

wjfk32 · 08-16-2011, 05:37 AM

Couldn't get NGKS..

Currently using DENSO-W24ESR-U(4033) copper plug..Success!!!

Walt

cole930 · 08-16-2011, 01:15 PM

Walt,

I recently got 8 off Evil Bay for $11.79 shipped.

Cole

mark houghton · 08-16-2011, 06:48 PM

Quote:

Originally Posted by cole930

Walt,

I recently got 8 off Evil Bay for $11.79 shipped.

Cole

That's a dern good price, but probably charged you $15 to ship. SOB's.....

cole930 · 08-16-2011, 07:27 PM

Mark,

Can't remember exact shipping but the total was a little over $2 each.

Cole

HFR_Racer · HFR_Racer's Garage

Use BR8ES. These are a fixed top NGK, non-projection type plug. These are a copper core cross-over to the factory Bosch W3DPO Platinum plugs. They cost $2 and are available at Advance Auto and several other local parts distributors.

If your going one hotter then use the BR7ES. If your not interested in the resistor plug then you simply remove the R. The OEM plug is a resistor type plug, but this is only to reduce radio interference..

I run these pretty hard so I've not had a fouling issue.

Who listens to a radio in a 930 though

xbmwguy · xbmwguy's Garage

+1 on BR 8es

wjfk32 · 12:37 PM

OK-SPARK-PLUG GURUS-

Does the thickness or larger insulator/porcelain matter??? After comparing my old ngks-r56-7 to denso 4033. The insulator part of the ngks was not as thick. Side by side the the denso looked more heavy duty. INMOP.
What do u think???
1ST one denso-w24esr-u

2ND NGK-R5671A-8

Jbp · 08-17-2011, 02:12 PM

Thanks guys.
I think i vill go for BR8ES.

Jocke.

mark houghton · 08-17-2011, 04:10 PM

Quote:

Originally Posted by HFR_Racer

Use BR8ES. These are a fixed top NGK, non-projection type plug. These are a copper core cross-over to the factory Bosch W3DPO Platinum plugs. They cost $2 and are available at Advance Auto and several other local parts distributors.

If your going one hotter then use the BR7ES. If your not interested in the resistor plug then you simply remove the R. The OEM plug is a resistor type plug, but this is only to reduce radio interference..

I run these pretty hard so I've not had a fouling issue.

Who listens to a radio in a 930 though

I use B8ES or B7ES on all my two-stroke dirt bikes...and have for over 40 years (damn, I've been playing in the dirt for too long!). Never thought of using them in my 930. They are excellent bike plugs in a tough, hot, premix oily environment.

JFairman · 08-17-2011, 04:55 PM

The highest quality and longest lasting steel used in the ground electrode of any sparkplug is... Autolite.

I've heard that more than once and other than that they all do the same thing,,, spark.

The heat range is determined by how long the center electrode and it's porcelin insulator in the combustion chamber is before it attaches and transfers heat to the rest of the sparkplug and then the cyinder head.
A short fat one transfers the heat from the tip of the center electrode to the rest of the plug and cylinder head quickly so it runs cooler and a hot plug has a long skinny insulator around the center elctrode so it transfers some of the heat to the rest of the plug slower and that makes it run hotter. you canlook at them and see the difference if they are clean.

That said I like Bosch plugs best and I can't tell any difference in how the motor runs with any name brand correct heat range single ground electrode sparkplug - copper, silver, or platinum they all do the same thing.

Bosch W4CS silver plugs are in my motor because I heard they are very good and they cost about 1/3 of the origonal Bosch W3DPO sideways sparking pure platinum cold plugs which also run fine without fouling in my motor.