"Garfed up"... Another excellent technical term from Rob. 😁👍

I love the friendly, info-packed, no bulls**t, clear and, concise style here.

I'd of never thought of the air getting compressed in there, but it makes perfect sense! Brilliant, brilliant stuff!

I'm impressed with the nonstop tips in this one. Years in shared for free. You make this niche corner of KZfaq shine brother.

Very interesting. I wouldn't have thought as much detail goes into this seemingly simple aspect. Thanks so much.

This guy is so informative and detailed in his videos. So much to know and learn. Very enjoyable to listen to him.

Rob you are a true genius... I love these videos.. Hope to see you and big Terry back very soon... Rock on cam...

HI I have been a drag racing fan for 50 years and a big fan of your channel for the past year ! I really like all the information you present on each video . You ask what we want to see on your channel. I have learned something from each of your videos . I say do and film whatever you want to it is all great!!! THANKS for doing this .

When we ran those brackets on boats we had them engraved and it was a massive help. Belt walk was a big problem and adjusting them in a bilge was a nightmare. Granted we didn't spin them as hard as you guys but we'd spin them for days compared to a fuel car. So getting them to ride right was critical.

Your the man. Thx for the videos. As a street rod guy drooling and wondering how the big dogs do it and u show us.

That was a great belt class Rob thanks!!!

I really enjoy watching your videos. The no-nonsense approach and wealth of knowledge and experience are a joy to watch. Thank you very much!

These videos are great. You're truly in YOUR OWN LANE...🔥😎

Simply amazing the attention every aspect of a top fuel car needs. Was good seeing you again Rob.

Hey Rob That domain Star Racer) you're listing has a re-direct in place to a app install prompt. Just making you aware so your customers aren't getting malware extensions installed thinking they're going to your trusted domain. Love the content. Keep safe.

One thing to add, speaking from engine timing belt experience. Always run the belt in the same direction. In operation, belt teeth get pulled in one direction and flipping the belt over will cause the teeth to be pulled in the other direction. This flexing can tear the tooth off the belt. This was a big problem with the old square tooth belts, could be less of an issue with round tooth belts but I'm not taking that chance.

Damn, I had forgotten how goes into just the idler pulley and belt. Great insight and tutorial Rob. Keep putting out the awesome videos and info. It’s greatly appreciated.

BRILLIANT!STAY WELL ROB..I NEVER KNEW HOW MUCH WENT IN TO BLOWER BELTS..

Very informative Rob. Thanks for all you do!

Thank you for these videos Rob! Great tech and advise for a young(ish) guy starting to run a nostalgia nitro fuel altered in the UK 😎

Look forward to your videos, always something to learn.

Thanks Rob , great information as always. Very much appreciated !

Wow a lot more goes into just putting the belt on than i ever thought would. Thanks for sharing. Stay safe an God bless.

So much great info. Thanks for all your vids.

I've never given much thought to a nitro-engine belt but I can see Rob has. Interesting stuff. I'm now looking at the blower snout (between the case and the belt) and am wondering what crazy stuff a crew chief needs to know about that.

Another great video. I was talking with a friend and he remembers you from back in the day. He used to build chassis and still fiddles around. You might remember him, Rick Esparza. He had only nice things to say and I told him about the youtube channel.

Excellent video Rob! Loving every video you post! Btw I'm heading to Steve Gibbs Nitro Revival in November. and I'll be riding shotgun/road tripping with 2 GOATS of NHRA: Herm Petersen and former Top Fuel world champ Rob Bruins. Needless to say I'm gonna soak up every nitro story they have to tell, it's gonna be a helluva trip! Kuhl and Olson car will be fired up by Herm, John Wiebe car and another one not sure yet?

It would be interesting to know whether making the toothed-idler with a convex shape from end-to-end. This is a trick often used to keep a flat belt tracking on a cylindrical pulley. Great stuff! Thanks for sharing your tricks.

Very informative! BTW it was a pleasure to talk with you for a bit at the Indy race, even if we didn't get to see any cars run Saturday! You are a class act.

Man, you have the coolest job.

Awesome stuff Rob! Keep them coming 👍

With those belts transferring 800+ h.p. from the crankshaft to the blower pully, its amazing that the stuff even lasts as long as it does.

Very Cool Info..Thanks

Rob had a lot of coffee before shooting this one. Great vid!

Another good one Rob. Im headed to the shop now to check on my blower idler setup now.

Just subscribed- your last two videos were really well done. Put my vote down as well for a reverser video one of these days- also curious how you balance that motor's power output front to back

All right thanks for the video

Thanks Rob , can’t get this kind of info anywhere else !

Another great video!!!

Very cool. Neat stuff no one thinks of. Glad i saw u and subscibed

Great video! Thanks

Thanks for another great video. Cheers 🇦🇺

Makes me think about normal auto work and assessing all the belts crazy how that works

Just a thought, time permitting you could do a fuel school for people trying to get into the sport as a crew member. I hope Terry will make a race soon. Are the bearings ceramic? I've seen some radius tooth belt pulleys modified, kind of looked like a #1 center drill was used to machine a small groove along the root, for other types of racing to get air and debris out from under the belt. Cool video, thanks.

Thank You !!!

Hey Rob, where are you. Are you with a team or have you been busy. Hope this comment finds you well. Some of us older guys have wondered about you. We miss your work and lessons.

That's great thanks Rob

Yes. Awesome stuff!!!

More video ideas: Always heard that you can smack a drop of nitro with a hammer and it will explode, and explain reverser operation!

Great video! thanks for posting. When is a dmpe/that style idler system needed vs the old school single bolt style?

Man. You need to film it in action for us, even better if it has slowmotion to it

Hmmmmm very interesting 🤔 great vid rob thnx.

Very interesting, thanks.

Hey Rob. Hope you see this- For some reason (racer brain I guess) this video popped into mind when I saw Bill Millers’s car back on track this weekend. If I remember right, he helped Goodyear when they came out with a blower belt for top fuel cars that had a V pattern in the teeth instead of straight across. Pretty sure Mike Klober jumped on board running it also. It was supposed to be the next big thing, but seemed to disappear almost as fast as it came in. Any particular reason???

This will come in handy.

Great video sir . Are you going to be at illinois this weekend? September 25th ? Nhra.

Who cuts your pulleys Rob? I have to make my own and cut them on a gear hobber since nobody seems to know how to cut large diameter pulleys. As you know the geometry and tooth shape changes slightly when the belt wraps around different diameter pulleys. Synchronous timing belts, difficult boogers to work with ha ha. Great videos as always!!!!!

👍🏻

Hey Rob, unrelated question, when Leah Pruitt broke in half a year or two ago does NHRA conduct an investigation on the car to try to ascertain what exactly happened? Where the failure came from ? If so I’m sure it’s a team of people. Is it a collection of crew/car chiefs or is it is it an outside team of guys that no longer or never competed at that level?

Some one is super hyped up over belts and idlers

The devils in the details

I always thought the belt was changed out for a new one every run (ie you got you some belt manufactor sponsorship).

I know this is strictly top fuel stuff… but did the guys as star racer ever say anything like “our belts like more tension”? Only reason I’m asking is, I just put one on my 565 and set it up like my old rubber/nylon belt was slack wise. Now when I whack the throttle, you can see the “slack” side of the belt rise up off the blower pulley. Basically trying to jump teeth… Wondering if I need to run it a little tighter, or will it hurt anything. I definitely don’t want to stress the crank or blower snout…

Hello Rob i have a question about cleaning the belts. Do you recommend WASHING the belts with soap and water?

Pretty good chance your sanding belt is slipping on the roller since belts like to climb to the high side when they have grip and are able to flex across the width as in a crowned roller's ability to self centered. Cogged belts usually have a fair amount of grip in the travel direction. Does the heavy pull cause them to slide across the width? Interesting stuff.

I assume it has been tried but would placing idlers to get more wrap on the pullies improve life any?

Rob is clearly a Black Belt.

Thumbed

I don't want to poo poo the design but why is the track straight instead of being curved/convex so you're getting the mechanical advantage and stiffness, have you also considered making the teeth on the pully itself an involute cut? Maybe they are hard to tell but the advantage is that there's only one constant flow contact point throughout the tooth engagement. Finally if you get the sprocket but with EDM you can get the exact profile to match belt and sprocket engagement and not have excess belt strain. Small relief holes could be added so to not trap air and cause vibration.

might better start it!...

Who makes plastic belts so I can read up on them?

Have you not monetized your channel yet sir? I may suggest you please do

Did my sticker make it down the track?

Is this guy retiring? Diagnosed with a terminal illness? I'm shocked to see such detailed "tricks of the trade" shared freely.

How about some English captioning.

Hey Rob, Does the 1440 long 8mm come in a 2" wide version or can a 3" be cut down? I want to bring the blower back an inch and narrow the the drive up on my little buggy kzfaq.info/get/bejne/m5l4iJydmMqWnoU.html She doesn't make enough steam to need all that belt anyway