WORLD'S FASTEST HARLEY STREET BIKE INSIDE LOOK!

Come with us to GMS Racing in Uniontown, Pa., home of the world’s quickest and fastest street tire Harley Davidson motorcycles as owner Gregg Dahl takes us behind closed doors to uncover what it really takes to make a Harley Davidson Bagger or street bike run a 7-second elapsed time on the drag strip. From the proprietary GMS cylinder head, to the sophisticated fuel management system to the constant testing, development and maintenance, Dahl tells all in this look behind the curtain at one of the world’s quickest and fastest Harley Davidson machine shops. Enjoy and share.
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[@feez357]

Lots of secrets here, read between the lines. You can tell he would love to spill the beans but he just cannot.

[@cycledrag]

Very astute. Tell me more. Thanks for watching and participating in the comments. Please give us a share!

[@pinnedthrottle7690]

Man, to be a fly on the wall in his shop.

[@brandonborkowski8312]

I will never say Harley's are slow again!!! We all love that Torque monster!!!

[@MrJimmy1437]

Do the math! Horsepower is what give you speed and the formula for HP, is torque times RPM divided by 5252 ! Torque without RPMs is useless! That is why Harleys are always getting their asses kicked on the highway!

[@jolla9963]

7.62 and still humble, that is what it's about. Going fast and staying grounded.

[@jiveturkey9993]

You know that dude is a mechanical genius.

[@cycledrag]

He sure is.

[@tainted_timmy6726]

Great interviews, but honestly, seems a bit like your more concerned about looking at the phone,yourself, I dunno?🤷🏼‍♂️ Your back to the the person being interviewed seems like you trying to get away.lol. Just my 2 cents

[@toddbaa]

The whole Dahl Family are Good People.

[@tomupchurch4911]

Call Lamar Walden Automotive in Doraville Georgia & they'll make your pistons.

[@petekosar8379]

👍 I did that so I can give two thumbs up.

[@michaelmitchell5909]

Those guys are amazing at what they do. They did heads and cylinder work on my road king as well as a dyno and its simply awesome how good my bike runs now!...I have a few other goodies done to it too...mitch from canonsburg, PA

[@kennethwise7108]

Cool

[@michaelmitchell5909]

@@kennethwise7108 ....sup Ken!....ya man, Greg is our tatro here in Pennsylvania....super intelligent people work for him too...the guy that runs the dyno there is a brain.

[@greggdahl3720]

Hey Mitch!

[@kennethwise7108]

@@michaelmitchell5909 that's AWESOME!!!!

[@michaelmitchell5909]

@@greggdahl3720 ....hey man what's up!...your new bikes awesome. I need to make an app to get another tune done to my 2003 cvo road king, the gold anniversary bike. Rook put on a hpi throttle body and now it needs another tune badly...

[@Mala-Ipsa-Nova]

Everything GMS does is 1st class. 14 haters? LoL, school em Gregg, they’ll learn.

[@wespuckdog3897]

Hockey pucks on the bags, old police bike?

[@j.a.f.i.p9517]

I'm a Harley guy, and Gregg's the kinda wrench, I would trust around my wheels. Make 'm to ride to hell and back, have a beer, and repeat, just for the heck of it!

[@greggdahl3720]

Sounds like fun, let's go!

[@needmetal3221]

That low end torque has to be a nightmare for the tire. I understand why hes pushing the torque peak to the right of the graph.

[@cycledrag]

Interesting. What's the fix? Thanks for watching and participating in the comments. Please give us a share!

[@frediefarmer]

This guy is a guru .. love it good luck for the quest for 6’s

[@porkchopspapi5757]

170" engine. I'm wondering how big engines will ultimately get.

[@nitrousshovelhead]

I saw a 260 inch motor at sturgis in 2006

[@jackwilson4197]

There a guy in NJ named Mike Bielen master machinist has a 6.000 stroke with 4.800 bore making all his own part makes every thing him self

[@porkchopspapi5757]

@@nitrousshovelhead would love to hear that engine.

[@julitosnijders3623]

GMS is a very crisp engine. Love IT💯🖤🖤

[@tysonkonken6184]

That's no street bike. The term bagger is used way to loosely!

[@greggdahl4803]

Yes quite true. Like NASCAR "Stock Car"? Or NHRA "Pro Stock"? Or NHRA "Stock"? Or "Street Outlaws"? The appeal is the Street looking package and doing it with no wheelie bars. The fans love it as much as we do.

[@swede910]

Two just great guys making this a great show!

[@geraldgoodiii6993]

Yup that 7.62 bike is clearly just a run of the mill street Harley 🤦‍♂️ That’s a fkn straight up drag bike

[@ronsmith5648]

australias watching...

[@aussie_xsf]

Pretty sure my 103 Road King would blow that into the weeds 🤔🤔😃

[@shenanigansofmannanan]

You're conflating "fastest" (top sustained speed) with "quickest" ( over the ¼mile) He may be the quickest on the drag strip... but Hiro Kosoi holds the record for top speed street legal sit-on Harley at Bonneville with 290mph average top speed....

[@jameshuffman835]

Afternoon Greg and Jack!

[@nikolaiownz]

Love gregg and what these guys make

[@alloutspeedsmashed]

This is absolutely awesome great work. @23:46 crushing the rollers? I don't doubt you but sometimes they skid instead of roll especially with high revs. Don't mean to sound like criticism just giving my knowledge and maybe help. Again awesome I'll definitely be contacting him in the future

[@treeguyable]

How much of the bike is " Genuine Harley", as opposed to aftemarket, and is it just other manufacturer, custom made parts , staying with the basic Harley design/ specs?

[@51chucker]

Gregg and his guys are the masters!!! 🌟🌟🌟🌟🌟

[@greggdahl3720]

Thank You! The people presently on my team are the best staff I ever worked with.

[@Tigman396]

At 4:09 I see a DOCOL sticker and cannot read the rest, is that frame made out of Docol R8? Those heads are a work of art!

[@greggdahl4803]

Yes. That chassis was featured on the Docol website when it was new.

[@Tigman396]

@@greggdahl4803 can you tell me the difference or similarity how it acts as to chrome moly?

[@greggdahl3720]

@@Tigman396 Search " Docol R8 tube. They have an excellent website that describes the properties of the material.

[@Tigman396]

@@greggdahl3720 I will thanks!

[@jameshuffman835]

Can't get crankshafts! Been waiting since last fall

[@stevenbonnesen5988]

Have you tried Truett and Osborn Wichita Kansas...316 682 4781...www.truettandosborn.com/Crankshafts.htm

[@jameshuffman835]

@@stevenbonnesen5988 not a standard crank

[@stevenbonnesen5988]

@@jameshuffman835 they manufacture cranks for performance as well as street use...Torque Monster...

[@kennethwise7108]

There isn't one part of that Engine and or motorcycle that is "Harley Davidson".

[@alloutspeedsmashed]

@16:50. The valves wear into the seats then we shim them down not up. Always putting in a thinner shim because the valve wears and the seats wear so the stem gets closer to the cam lobe.

[@roncoburn7771]

love it Gregg is a master i live in md have to get to his shop one day

[@wolfemanbog4176]

Wow that was fast !!!

[@resto-sk7be]

Love your content. New hampshire here. Thank you

[@joechancio5177]

Mad respect for that. But i dont think its a streetike anymore. Lol

[@kawboykody]

My father races with Greg in the amra.He can ride the hell out of a bike.

[@daniellang6112]

Internals sure look like a harley.NOT!

[@tomconner5067]

That's a stout build Greg, I love the Warheads, I am partial to a side by side set of rods, but they look like they'll hold up well under 500 hp, shame there's not a roller bearing that can hold up under those conditions. You do excellent work.

[@kenwalker4682]

Great job!! What a bike!! Keep up the great work!!

[@charlesthomas76]

That is not a street bike..... duh

[@dennisjennings6893]

Ce to Tulsa raceway in 22 please

[@jacklavender113]

I don’t see any h-d parts at all

[@tomconner5067]

RIP Harold Bettes.

[@dennisellis7020]

🤔🤠 Phenix city AL/ Columbus GA will have the next 7 second street tire, no wheelie bar bike sir....watch out

[@kennethwise7108]

Beryllium seats! 👍🏻

[@stevemurtz3546]

Lol, and now we have stock motor motorbikes in the 7's. Harleys suck ass, spend literally tens of thousand of dollars to get it to do this. Edit: oh its nitro fed and stand alone ecu's let's make that 100's of thousands spent.

[@___Eldritch]

I once watched a piston from a v rod blast through a gas tank into a guys chest killing him almost instantly. Since then? I fear for riders lives on anything other than an inline 4 with the power these guys put down.

[@smukface]

Is his Gal Still Ridin??

[@lbelle2w87]

♥️

[@jackzist6802]

Greg do you have a link to the dennis haase video ? I did some welding and machining for him when he was at pro cycle.Thanks

[@richardpitts6284]

" Cycle Drag " is Boss ! Watchin from Asheville N.C. super video !

[@kennethwise7108]

BEST EPISODE EVER HOMEBOY!!

[@greggdahl3720]

Thanks 👍😊

[@dawidos117]

@@greggdahl3720 can you tell me please what, in your opinion, is the best transmission oil for H-D FLHRXS stock trans? Your engines rock, man!

[@greggdahl4803]

@@dawidos117 I think the factory specifies HD motor oil at least if their synthetic is used. I prefer to use a high quality gear oil that would be used in earlier bikes. Something heavy like Belray or Red Line is what we use.

[@dawidos117]

@@greggdahl4803 thanks very much for your reply, man! It helps a lot! I really appreciate it 👊🏻

[@dogpaw775]

more please.

[@tonyt8805]

Jack....I see you finally bought a razor! 😉😂😉

[@scottsilver3580]

Nice ☮️

[@bearjoss99]

The riding position looks comfy 👍,the G force might not 😁

[@koolsolutionszx12r55]

I hate Harley's with a purple passion, but this man I RESPECT as much as any man I've ever respected. He's the real deal inventor of power! As opposed to the copycat liars out there. Great job Sir!

[@greggdahl3720]

Thank You for the kind words

[@KennyRain]

This is awesome but I have a fair question... why not just make a beefy vrod style v twin... I have a v rod and it cranks out almost 10k rpms.. on pump gas with sprockets and tune, it runs 10s... I don’t build bike motors so I don’t know that’s why I’m asking

[@greggdahl3720]

The challenge for us is utilization of the 45 degree pushrod Harley platform. The overhead cams in the Rod allow the high RPMs. I have friends that have done great things with the Rod but we prefer the traditional Vtwin

[@garychandler4296]

Someone tell me where the "sreet" part is, except for the back tire!

[@kurtking5913]

I think it takes 2 large containers of hair spray to go in the 7's

[@thejailexpertbailbonds3924]

Bad ass!! Congratulations, Greg and team!!

[@kennethwise7108]

Is that an Evolution configured engine? Looked like a Twinkie but wasn't sure

[@greggdahl3720]

TC

[@DaleWalkerHoleshot]

Hard work and perfection ! DW

[@greggdahl3720]

Thanks Dale, you're very kind.

[@DaleWalkerHoleshot]

@@greggdahl3720 Your very welcome Gregg, That's a boat load of work and development to run that fast and keep that motor together. I was not a big V Twin guy, but years ago in the 80s I rode for Sandy Kosman for a 10 year period. I had the pleasure of piloting a low 9 / high 8 second NA HD. Sandys bikes were works of art, and I was lucky enough to ride many of them. Keep up the great work and having fun with it, Cheers Dale Walker.

[@greggdahl4803]

@@DaleWalkerHoleshot That's so cool! Sandy was a master of the craft and there is still a lot of his chassis running, and running fast today. If you're ever in my territory, stop by!

[@DaleWalkerHoleshot]

@@greggdahl4803 Not sure If I ever will be out there since I'm in NV on the west coast, but If I am will give you a call. Love to make some test passes on your bike if you ever need more input. Here are a couple vids on my old bikes, Sandy's stuff and history you may enjoy . Part 1 kzbin.info/www/bejne/sKnXc41rmLJ-r7M Part 2 kzbin.info/www/bejne/o3a3lIeDj7x6fa8 Cheers Dale Walker

[@greggdahl4803]

@@DaleWalkerHoleshot 10-4 Dale!

[@Lucillevanpelt]

Hijacked

[@cycledrag]

What do you mean Karen? Thanks for watching and participating in the comments. Please give us a share!

[@Lucillevanpelt]

@@cycledrag lol

[@Lucillevanpelt]

@@cycledrag I’m holding my “share” hostage until I get my stickers 😁

[@kennethwise7108]

He got jagged by breaking his transmission

[@richardpitts6284]

Saving this video ! Priceless !

[@markfriddle4414]

Sounds like had more in it

[@cycledrag]

Oh i think so too. Think 6's are a possibility? Thanks for watching and participating in the comments. Please give us a share!

[@markfriddle4414]

Thank you Jack for promoting the sport .

[@dennishowell6494]

Thank you Greg and cycledrag

[@eavesstreet6307]

What engine did they start out with? The m8? And the swingarm and chassis?

[@greggdahl3720]

TC based platform.

[@brenthill3241]

One of my favorite shows yet.

[@vincentchen5304]

That's really impressive

[@dereknadeau5843]

There's a 65 year old that does it in his sleep 🤷🏻‍♂️

[@cycledrag]

Please explain? Thanks for watching and participating in the comments. Please give us a share!

[@edvivarttas1716]

Chain guard no belt guard

[@battlechris8463]

Nitride is used more often now in gun barrels over a coating or chrome lined because its an actual part of the metal vs just being a coating. I can see how that would apply to high performance race parts as well. Awesome job! I wouldn't know where to begin to build a bike like that.

[@greggdahl4803]

Thanks! We are starting to use Nitride on some of our drive parts to help them live.

[@josephkopeczy2678]

What was the speed at the Finnish line what the mph

[@greggdahl3720]

176 in this vid.

[@jackzist6802]

what are those rocker arms massive

[@greggdahl3720]

Jesel valve train. World's finest

[@markfriddle4414]

Was that foot shift?

[@greggdahl3720]

Air shift

[@stephengroeschel6898]

Indestructible

[@greggdahl3720]

Not quite but we're working on it.

[@fireball1322]

American Ingenuity at it's best .

[@traviscartwright3885]

💪💪💪💪💪💪💪💪

[@cycledrag]

Thanks for watching and participating in the comments. Please give us a share!

[@traviscartwright3885]

I was there in the lanes, thanks for your support with motorcycle drag racing

[@mopar340dave]

What's the quickest all motor 4 banger?

[@MrJimmy1437]

That not a stock street bike, its a special built expensive piece of crap!

[@greggdahl3720]

Bring your's out

[@MrJimmy1437]

@@greggdahl3720 I have been kicking Harley riders asses for 55 years! Just did one joker last Sunday! I am talking about showroom stock! Harley has never won an honest race! In flat track racing, for 35 years, they were allowed to run 750 cc while the other brands, were limited to 500! And since 1985, those bastards, are allowed to run motors almost double the size of the competition !

[@greggdahl3720]

You sound like an angry little guy. Sorry for your pain

[@MrJimmy1437]

@@greggdahl3720 A person gets a sick of those cheating, Harley phonies, after awhile! They parade around, making a lot of noise and acting like they have the fastest bike on the road, when in fact, those Harleys are over priced , outdated, underpowered crap!

[@jonnymac8925]

@@MrJimmy1437 bahahahaha Harley guys don't think they have the fastest bikes. What a dumb comment. It sounds like your wife left you for someone on a Harley. Also, HD doesn't claim to make fast bikes or race bikes. They use old technology for people that like a simple machine. You sound like a real winner. Congrats, you raced a stock Harley😂

[@chrismacnight8100]

Nos is dumb never run the number

[@chrismacnight8100]

Junk