Lawnmower sparkplug gap search brought me here. WOW!Great info in such a short amount of time! This explains so much about small engines and regular engines. You just got a subscriber. Keep up the vast knowledge 👏
Great info, Ted. The gap thing is just like the octane myth, that higher octane in and of itself will grant you more HP. Another one is the exhaust back-pressure myth, that lack of it will burn valves. Don't know how these tales get started, but there's alot of 'em out there! On the spark subject, I had a '00 4.3 V6 in a '89 S10 Blazer years back. I had stripped all the FI off and went back to basics - carburetor and HEI ignition. I grabbed a HEI distributor off eBay real cheap, and ran the plugs at the factory setting of .060". I learned a little something about ignitions after that, hahaha! After burning up 2 Chinese HEI modules one after the other, I finally installed a much better quality Echlin module, closed the gap to .45", and still got just .5 MPG less than it did when it was fuel injected (carb was damn close right out of the box, lucky me). No more HEI failures every 4-8k miles either. 😁 That was the best running vehicle in my fleet after that. Prior to that, it had misfiring issues at full throttle that slowly crept down into lower and lower RPM ranges, and would also come and go intermittently. The Chinese just haven't been able to copy an HEI module yet, at least not on eBay. 😉
Thank you brother JR. That is a good perspective. The larger the gap, as long as you have enough voltage to handle it, the more fire. Of course then we get into combustion and what fuel ignites hotter with that spark/fire/explosion to push that piston down. How about mixing a little TNT in the tank? LOLOLOLOL
Thank you for this. Thinking of going boost soon. Just regapped oem sparks for na set up I’m having a running rich condition and I had a tighter spark gap. Do you think this will help fix the issue.
since opening the gap increased spark energy you can burn more of the fuel in the chamber but will not fix a condition where too much fuel is injected.
I have a 2020 V6 charger, no engine mods, just an oil catch can. Thinking about upgrading the coils with RIPP coils. Would i gain anything from this? Or not worth it upgrading just coils? And if I do upgrade the coils would I be OK using the the stock mopar V6 Spark plugs? Oh vehicle had only 15,000 miles don't want to change plugs if I don't need to. Thanks
Im running a Whipple supercharger on my 6.1 hemi the the spark plugs were pre gapped to .032 when I got the car. should I leave them or go to .050 factory gap?
If you listen carefully to the video you will understand what I am saying, Closing the gap will reduce the amount of spark energy it takes to jump the gap. I wouldn't go .050 but I would go 0.040 to maximize efficiency but not push the coils past there ability.
Start at .098 and increase in .001 increments until the engine won't run. Back off .003 until it just starts to run and then add .007. You should be in what we call "the perfect gap" range.
If you get incomplete combustion on one cycle the next cycle could have left over fuel in the combustion chamber that is highly volatile and ignite on the next compression cycle so Yes.
Question for 18psi what should i make my plug gap at stock boost 10psi i was runing .028 with 18 psi should i run .024 or .022 because at .026 i still got blowout at wot Thank u godbless🙏
If you listen to the message in the video you will understand that If your ignition system can't handle the boost there is something wrong with the ignition system and closing the gap is only a bandaid for a broken leg. boost the voltage to your coils instead of closing the gap tune the Dwell time on the coils also.
@@JANNETTYRACING i understand that but what would u recomed doing if replaced the coil pack wireing an bought high quality packs already honest question
@@gecko1406 We found that aftermarket coils are more prone to misfire due to the fact that the wiring can not support the added load from the supposed high output coils Factory coils out perform aftermarket coils on stock wring. JMS offers ignition voltage boosters that work incredibly well then you can go back to larger gaps.
Thanks Heaps I purchased new Plugs NGK TR5IX And increased the gap to .49thou (and added granatelli zero ohm wires) What a pleasant difference😍...my LS3 is idling much much smoother and getting better mileage per litre ( before 18.5lts per 100klms, now 17.1lts per 100klms around town HWY gets 8.9lts per 100klms
Did you notice a power difference with opening the gap with the granatelli 0/ohm wires? I just put those wires on my 19 GT and was thinking about increasing the gap also.
@@JANNETTYRACING I figured it must be something like that. My family never changed the name but I think they came in through a different port than Ellis Island where workers didn’t try to anglicize names. Iannetti makes sense too. 👍🔧
@@300tolife8 it worked and I didn't see huge results. It just allows you to run leaner but that lean mixture is still limited by compression so you couldn't run any leaner than the motor wants regardless of spark. A stock ignition coil can support up to 50 before it runs like shit and the blaster 2 coil can support 60+ no problem, just watch the piston clearance. Nothing serious to stress but I just like the idea of more lightning in the chamber hehe
@@TommTooTone I just changed out my plugs and I ended up gapping at .045. The old plugs were like .042 .043. Idk just bc they were new plugs but let me tell you. She is definitely putting more power down. Huge difference. 07 Chrysler 300c 5.7l hemi
Hi, just thought I would give you some feedback on going bigger on plug gap, on my 3.0v6 carburetored turbo engine, I'm also using an msd 6al ignition box, from a 0.58 to 1mm, it was amazing difference car runs almost like an injected motor,... Is it advisable to go any bigger?
Thanks for sharing this.............FYI I just validated what you've said by me installing a 1 step colder set of plugs using a .030" gap replacing a set of OEM plugs using a .044" gap & ended up inducing cylinder combustion instability.......which when I pulled the colder plugs & regapped them from .030" to the low end of OEM spec.... .040" gap & reinstalled the same 1 step colder plugs w\ this widened gap & data logged engine......all combustion stability returned to engine that it had w\ the OEM plugs running the .044" gap (the midpoint of the OEM plug gap spec range of .040" to .050"---Ford 4.6L V8 in NA config......trying to find reason why only 3 of 8 cyls would experience knock at .70 load & up & not the rest) so my experience just followed what you've said to the letter! Thanks again!
I run my sbc at 35 thousandths. 13.5-1cr, solid roller,msd hei, msd 7al, moroso ultra 40s 38 degrees total advance. My combination just likes 35 so that's where it stays
Lawnmower sparkplug gap search brought me here.
WOW!Great info in such a short amount of time!
This explains so much about small engines and regular engines.
You just got a subscriber. Keep up the vast knowledge 👏
Thank you very much for sharing your knowledge with the rest of us.
Thank you. Learning more and more.
Great info, Ted. The gap thing is just like the octane myth, that higher octane in and of itself will grant you more HP. Another one is the exhaust back-pressure myth, that lack of it will burn valves. Don't know how these tales get started, but there's alot of 'em out there!
On the spark subject, I had a '00 4.3 V6 in a '89 S10 Blazer years back. I had stripped all the FI off and went back to basics - carburetor and HEI ignition. I grabbed a HEI distributor off eBay real cheap, and ran the plugs at the factory setting of .060". I learned a little something about ignitions after that, hahaha! After burning up 2 Chinese HEI modules one after the other, I finally installed a much better quality Echlin module, closed the gap to .45", and still got just .5 MPG less than it did when it was fuel injected (carb was damn close right out of the box, lucky me). No more HEI failures every 4-8k miles either. 😁 That was the best running vehicle in my fleet after that. Prior to that, it had misfiring issues at full throttle that slowly crept down into lower and lower RPM ranges, and would also come and go intermittently. The Chinese just haven't been able to copy an HEI module yet, at least not on eBay. 😉
Good advice as always
This makes perfect sense
thanks for sharing!!! regards from Chile!!!
Thank you for participating, and sharing.
Good info.
Thank you brother JR. That is a good perspective. The larger the gap, as long as you have enough voltage to handle it, the more fire. Of course then we get into combustion and what fuel ignites hotter with that spark/fire/explosion to push that piston down. How about mixing a little TNT in the tank? LOLOLOLOL
Thanks Goldberg
Lmao I was going to say the same thing. Goldberg a mopar guy
Wise words
Thank you for this. Thinking of going boost soon. Just regapped oem sparks for na set up
I’m having a running rich condition and I had a tighter spark gap. Do you think this will help fix the issue.
since opening the gap increased spark energy you can burn more of the fuel in the chamber but will not fix a condition where too much fuel is injected.
Bravo 👍
Very good. You're exactly right! I hardly ever agree with anyone! 😁
Makes sense.
I have a 2020 V6 charger, no engine mods, just an oil catch can. Thinking about upgrading the coils with RIPP coils. Would i gain anything from this? Or not worth it upgrading just coils? And if I do upgrade the coils would I be OK using the the stock mopar V6 Spark plugs? Oh vehicle had only 15,000 miles don't want to change plugs if I don't need to.
Thanks
You will gain nothing from changing coils unless yours have failed and engine is skipping. a Fresh set of New OEM plugs will do fine.
@@JANNETTYRACING ha thanks for the info! Appreciate it!
@@JANNETTYRACING you saved me some money, from doing something unnecessary. 👍
Great
Im running a Whipple supercharger on my 6.1 hemi the the spark plugs were pre gapped to .032 when I got the car. should I leave them or go to .050 factory gap?
If you listen carefully to the video you will understand what I am saying, Closing the gap will reduce the amount of spark energy it takes to jump the gap. I wouldn't go .050 but I would go 0.040 to maximize efficiency but not push the coils past there ability.
@@JANNETTYRACING ok won't go to .050. do you think about a .045?
I have a 555 bbc with a 1200 cc carburetor running methanol what would you recommend for a spark plug gap
You mean cfm, I hope. A 1200cc carb would be the size of a vw engine. Regardless, impossible to answer without more info and testing on your part.
Start at .098 and increase in .001 increments until the engine won't run. Back off .003 until it just starts to run and then add .007. You should be in what we call "the perfect gap" range.
I know Joe Mondello liked a .045 for the HEI, not sure why though
Hi
Can I gap from 1.1mm to 1.25mm to my spark plugs on my tucsan 2019
2000cm MPFI
Thanks
I suspect you can but test test test.
@@JANNETTYRACING
Hi
Thank you for reply
I do it
it work good
I will use OBD2 diagnostic for live data and will see
Thanks
I like what you say when the Gap is too small can you get spark knock on normal traffic driving
If you get incomplete combustion on one cycle the next cycle could have left over fuel in the combustion chamber that is highly volatile and ignite on the next compression cycle so Yes.
Question for 18psi what should i make my plug gap at stock boost 10psi i was runing .028 with 18 psi should i run .024 or .022 because at .026 i still got blowout at wot Thank u godbless🙏
If you listen to the message in the video you will understand that If your ignition system can't handle the boost there is something wrong with the ignition system and closing the gap is only a bandaid for a broken leg. boost the voltage to your coils instead of closing the gap tune the Dwell time on the coils also.
@@JANNETTYRACING i understand that but what would u recomed doing if replaced the coil pack wireing an bought high quality packs already honest question
@@gecko1406 We found that aftermarket coils are more prone to misfire due to the fact that the wiring can not support the added load from the supposed high output coils Factory coils out perform aftermarket coils on stock wring. JMS offers ignition voltage boosters that work incredibly well then you can go back to larger gaps.
What gap for traditional aspirated LPG engines?
Follow manufacturers recommendations.
Thanks Heaps
I purchased new Plugs
NGK TR5IX
And increased the gap to .49thou (and added granatelli zero ohm wires)
What a pleasant difference😍...my LS3 is idling much much smoother and getting better mileage per litre ( before 18.5lts per 100klms, now 17.1lts per 100klms around town
HWY gets 8.9lts per 100klms
Did you notice a power difference with opening the gap with the granatelli 0/ohm wires? I just put those wires on my 19 GT and was thinking about increasing the gap also.
@@robertgallagher4971
I only noticed a smoother idle , didn't notice HP rise
Thanks for that info. Nothing personal, but how about changing your name back to Giannetti?! 😉👍🔧
That was something that was done 6 generations ago. actually it was, Iannetti.
@@JANNETTYRACING
I figured it must be something like that. My family never changed the name but I think they came in through a different port than Ellis Island where workers didn’t try to anglicize names. Iannetti makes sense too. 👍🔧
What about a 72 Buick Skylark? 5.7 V8 it says .40 but I'm about to try .50
How that work out for you
@@300tolife8 it worked and I didn't see huge results. It just allows you to run leaner but that lean mixture is still limited by compression so you couldn't run any leaner than the motor wants regardless of spark. A stock ignition coil can support up to 50 before it runs like shit and the blaster 2 coil can support 60+ no problem, just watch the piston clearance. Nothing serious to stress but I just like the idea of more lightning in the chamber hehe
@@TommTooTone I just changed out my plugs and I ended up gapping at .045. The old plugs were like .042 .043. Idk just bc they were new plugs but let me tell you. She is definitely putting more power down. Huge difference. 07 Chrysler 300c 5.7l hemi
Hi, can a larger gap cause detonation
No sir.
Thank you
Hi, just thought I would give you some feedback on going bigger on plug gap, on my 3.0v6 carburetored turbo engine, I'm also using an msd 6al ignition box, from a 0.58 to 1mm, it was amazing difference car runs almost like an injected motor,... Is it advisable to go any bigger?
My gap spec is 0.043 can I use a SP gap at 0.044?
ha!
I'd like to see the gap gauge that would make that measurement
Thanks for sharing this.............FYI I just validated what you've said by me installing a 1 step colder set of plugs using a .030" gap replacing a set of OEM plugs using a .044" gap & ended up inducing cylinder combustion instability.......which when I pulled the colder plugs & regapped them from .030" to the low end of OEM spec.... .040" gap & reinstalled the same 1 step colder plugs w\ this widened gap & data logged engine......all combustion stability returned to engine that it had w\ the OEM plugs running the .044" gap (the midpoint of the OEM plug gap spec range of .040" to .050"---Ford 4.6L V8 in NA config......trying to find reason why only 3 of 8 cyls would experience knock at .70 load & up & not the rest) so my experience just followed what you've said to the letter! Thanks again!
I am glad you were able to use this info to improve performance of your vehicle thanks for watching and sharing.
BUT all hott rod guys like a small tight GAP not a blown wide-open GAP ?
Just because a lot of people do something wrong doesn't make it right.
I run my sbc at 35 thousandths. 13.5-1cr, solid roller,msd hei, msd 7al, moroso ultra 40s 38 degrees total advance. My combination just likes 35 so that's where it stays
Same with my ford industrial 300 at .035 dosent miss a beat
i like a big gap
bullshit.. always better to turn gap down on boost.
Tell us Why that is would love to hear your theory.
@@JANNETTYRACING The year of silence tells all...hahaha