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#1 |
Registered User
Join Date: Oct 2011
Location: phoenix, az
Posts: 508
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Hidden HORSEPOWER in Side Gapping your Spark Plugs?
I first heard of "Side Gapping" spark plugs here on this forum, it made sense to me so I tried it on a fresh set of plugs. Before I got started I read articles on SG that explain exactly how to modify the plugs in detail and also say racers have been doing this since the 60's to increase performance, well I'm quite disappointed with this SG trick because it did nothing for my performance. I wasn't expecting a major gain in horsepower or gas mileage but I expected something, anything, I just didn't see it! I hope you guys have had better results SG your spark plugs, I'm not impressed!
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#2 |
Registered User
Join Date: Nov 2011
Location: Oklahoma City Oklahoma
Posts: 1,056
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
Electricity will only seek out the shortest/ lowest point of resistance. That why the power3 plug don't do anything but last longer as you have 3 points to wear. point blank at most you risk a short
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#3 | |
Registered User
Join Date: Jul 2009
Location: washington
Posts: 4,178
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
Quote:
So results will vary. Posted via Mobile Device
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#4 |
Registered User
Join Date: Nov 2011
Location: Oklahoma City Oklahoma
Posts: 1,056
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
You shave these then did you make sure that they all point in the same direction after being installed?
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#5 |
Account Suspended
Join Date: Oct 2012
Location: phx, az
Posts: 868
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
indexing them will work better then SG
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#6 |
Registered User
Join Date: Dec 2011
Location: Arlington WA
Posts: 1,728
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
did that on a honda 1.8 with CVCC just for the hell of it. no point on doing it on that, it just ignites a small chamber behind the exhaust valve then blows through it to ingite the charge in the cylinder
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#7 |
Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,194
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
Racers are looking for performance gains measured to the thousandth of a second (.001).
Did you think you would be able to perceive that via "seat of the pants"? K
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#8 | |
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Join Date: Jul 2009
Location: washington
Posts: 4,178
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
Quote:
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377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac 3''spintech prostreet mufflers xpipe 1 3/4 headers build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217 Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511 |
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#9 |
Registered User
Join Date: Jun 2012
Location: Minnesota
Posts: 509
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
"Side Gapping", indexing, using fancy Split Fire or copy cats don't do much if anything. In high power precision applications where a couple thousandths of a second matter, it equates to a near immeasurable power increase.
I did try an E3 plug in my weed whacker, it starts easier, but I contribute that more to the plug being new. It did not cut through weeds noticeably faster. It still would not cut down a tree. Synthetic oil falls to this as well. Superior lubricating qualities for longevity, but any power gain achieved would be insignificant. |
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#10 |
Registered User
Join Date: Oct 2011
Location: phoenix, az
Posts: 508
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
I've heard changing to a hotter plug doesn't do anything either except make your engine run hotter? I've seen people flip their factory air cleaner lid upside down to increase air flow which would increase performance right, also never worked for me!
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#11 |
18 Till I Die
Join Date: Mar 2005
Location: Alberta, Canada
Posts: 1,522
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
That does work(flipping the air cleaner), proved it one night with a couple races, was a good couple car length difference, same night same trucks...
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#12 |
Registered User
Join Date: May 2010
Location: Lewis County, WA
Posts: 1,523
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
I have some snake oil to sell you.
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#13 |
Registered User
Join Date: Jul 2009
Location: washington
Posts: 4,178
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
Beaver another reason to do this is also it helps deter detonation from the ground strap being to hot as well. Flipping the air cleaner base in the stock aircleaner does work. Especially so with a high flow filter. Indexing the plugs helps at higher rpm as well.
All these tricks are small on engines with a lot of power tapped out and many mods and improvements to make more power efficiently. For you a stock 454 isn't going to see anything. Try the big three. Intake, exhaust, cam. In that order. Don't want to tear down for a cam? Higher lift roller rockers can essential make your stock cam seem bigger. That's 10-15 hp guaranteed. Do all these things and I will assure 75+hp gain Posted via Mobile Device
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#14 | |
Registered User
Join Date: Jun 2012
Location: Minnesota
Posts: 509
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
Quote:
Hot/cold plugs refer to the center electrode's ability to dissipate heat, changing to a hotter or colder plug is usually done to control preignition. Often in an older engine a hotter plug is used to keep clean and free of oil deposits that can retain heat and cause preignition. The tip being too hot itself will result in problems with preignition. Colder plugs are often used in high compression and forced induction engines where having the tip disipate heat faster reduces the possibility of preignition. Too cold and the tip won't be able to burn off deposits (which also cause preignition). |
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#15 |
Registered User
Join Date: Aug 2011
Location: Phoenix, AZ
Posts: 91
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
If you have a 600 cfm carb, flipping the air filter lid still leaves you with a 600 cfm carb. It can't take in more air than it's maximum.
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#16 | |
Registered User
Join Date: Jul 2009
Location: washington
Posts: 4,178
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
Quote:
Posted via Mobile Device
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377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac 3''spintech prostreet mufflers xpipe 1 3/4 headers build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217 Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511 |
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#17 | |
Registered User
Join Date: Feb 2007
Location: Austin, TX
Posts: 3,930
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
Quote:
For example, on a 100 degree day with a 14x3 open element K&N filter, I installed a temperature probe inside the filter housing to measure the temperature of the incoming air. I did some stop and go driving the average temperature I saw was 180+ F. Not good. Yes, the factory air cleaner is restrictive and there's no denying that, but by changing one thing you sometimes create another problem that slows you down.
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#18 | |
Registered User
Join Date: Jul 2009
Location: washington
Posts: 4,178
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
Quote:
Posted via Mobile Device
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377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac 3''spintech prostreet mufflers xpipe 1 3/4 headers build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217 Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511 |
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#19 | |
Registered User
Join Date: Oct 2011
Location: phoenix, az
Posts: 508
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
Quote:
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#20 |
Registered User
Join Date: Jul 2009
Location: washington
Posts: 4,178
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Re: Hidden HORSEPOWER in Side Gapping your Spark Plugs?
Well I will try and make it but basicly it's just all the stock stuff remade to work how I wanted
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