Slot Car Tire Testing on the Carrera Porsche 917K
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- เผยแพร่เมื่อ 5 พ.ค. 2022
- I did some testing of the stock tires vs Quick Slicks Silicon Tires (CA21F) for the Carrera Porsche 917K.
I post the lap time results.. Silicon Tires are the real deal.
Thanks for watching.
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#slotcars #slotcarracing #carreraslotcars #carreradigital #quickslicks #digital132 #porsche917k - แนวปฏิบัติและการใช้ชีวิต
Nice video Marty 👍I like #22, Martini Livery
She moves lol
Thanks Ant1! Martini livery is so classic!
Hi Marty. I have the NSR model of the 917K Double Fin car of Piper/White, in British Racing Green. Fitted with a 20K shark motor, it is reasonably quick, but struggles to keep up with the NSR Porsche 908/3's which come standard with shark 21.5K motor. Great fun to drive & race with. May have to consider upgrading to the larger motor. You have an awesome look layout, and it certainly looks as if it is fun to drive on.
Mark, thanks. I love my layout. It is a lot of fun, and pretty challenging. I love the 917’s.. I actually have that same car on loan from Area 51 , to see how it performs. I plan to do a video comparing the cars.
This is just a guess, but I think it's the divot in the rims, some people fill divot with super glue gell then true the rim then glue the tire on the rim then true tire. It will be smooth as glass. Just a guess.
Excellent video Marty thanking you kindly fot sharing sir.
Thanks!
Our club has a couple 917s, also, and they're definitely a favorite.
We have to run rubber or urethane. Part of the decision for that is our track is outside. The main reason we can't run silicon slicks is that they **require** a very clean track. Even under the best of conditions, whenever there's a breeze, we get tree pollen all over the track.
I've found that replacing the axle/aluminum wheels/brass crown gear/brass pinion gear is very productive for reducing noise and increasing smoothness. I think, but can't prove that the plastic gears wear and become noisy. And, as someone below mentioned, stock Carrera axles are generally not all that round.
Slot Car Corner has a package that is a drop-in replacement for Carrera cars using, iirc, Slot-It parts. The folks at SCC are always good about answering questions.
If you **really** go down the rabbit hole, you will need to start truing rims & tires. I strongly recommend against truing tires ON THE CAR - that's a sure recipe for blowing up the chips.
I've made a wiring harness for using an external 12v battery that plugs directly into the Carrera motor connector. This isolates the chip from the electrical loads of truing rims and tires on the car.
The alternative is a Tire Razor, but I believe they've been out of production for a while. I'm surprised that nobody has produced a good 3D printed version of one.
Last thought... SlotIt sell "zero grip" front tires, and you can probably find something that will fit your cars.
Alan, I really appreciate you taking the time to give such great advice. Yes, a tire truer will be one of the next purchases.. there doesn’t seem to be a lot of choices out there right now. I saw someone had 3D printed one. My brother has experimented with replace the axels on one of his cars but I have yet to go down that path. My 917 is loud, but it is fast. I love driving it.
Interesting that you set up outside.. I struggle enough keeping my track clean in my basement. I could not imagine outside.
@@twolinesslotcars The 3D printable versions I've seen have all been copies of the Hudy type of truer: these require aluminum set-screw wheels -- you glue up the wheel, stab the allen driver through the tire, and mount it to the truer. You have to use a digital caliper to get them the same.
On a Tire Razor type, there are "forks" that engage the brass bearings. You can actually true the rear plastic press-on wheels, tires & axle as an assembly.
You can also glue up the front wheel, tire & axle assembly.
Not to mention being able, as mentioned before, true up the plastic rim itself.
I think this is, literally, the only only solution for people with Carrera & Scalextric cars. At least those who don't want to replace all their rotating assemblies.
I've been working on designing a 3D printed version, but I'm not a very good designer, unfortunately.
Ha, yes, the outside set up is fun -- we have the liberty of a HUGE track, but we have to use a leaf blower every time we run, and sometimes after lunch as well. And, we have to take it down from October to March.
@@twolinesslotcars Oh, and Gulf livery all the way. :)
Well done Sir 😎
Thanks Joseph!
I just got this same #26 917. I really like the look of it, and right outta the box, stock tires, it can be made to go pretty good.
Its low and flat and can get totally sideways and snap right back in line, it will be the fastest car here once tuned.
If a person is desperate, Ali Express has these cars, in Gulf Livery, or in white #26.....The gulf might have to be had in evolution and chipped.
I am a big fan of the 917, Carrera's is fantastic and is my fastest Carrera car.
Beautiful looking car Marty and it's got to be gulf livery with martini as a close second. thanks for the video 👍
Robert! I am with you.. the Gulf livery just stands out..
G day Marty, mate no nail polish on the fronts. The noise issue , could be your braids, Carrera slot cars are bit noises with the braids , recheck your tyres they mite not be fitting correctly however great review Marty regards Rhys watsonia Victoria Australia
Thanks Rhys! I will check all of those things.. see if I can get it a little quieter.. but it performs great.. so I can live with a little noise 😂
Martini for sure
Great choice!
Nice times, Just a word of advise I would not use nail polish on the front tires. They will make the tire hard over time and it will get even noisier. I would use Floor wax like pledge to put on the front tires. How do I know nail polish hardens your tires? I have several of those 917’s and other cars that have Flintstones tires now cause I used nail polish. Only thing I use the nail polish for is for gluing my tires to the wheels.
Great advice! I guess that might be where my noise is coming from? Good to know, and will not do that in the future. Thanks Area 51!
I’m still learning the hobby. What is the purpose of the nail polish or wax on the front tires?
@@heavybrandathletics410 so the theory is.. zero grip front tires.. if the front tire gets traction going into a turn it will cause the rear to drift out.. but if the front tires do not get traction, the rear will track right behind the car.
If you sand down the rims so there is no indent. It will quiet down the noise. The Carrera tires are thicker and that why you don’t hear it as much.
I have watched a few videos about this very thing… thanks Dano!
I have the same awful noise coming from these silicon tires. Was told by the seller silicon tires don’t make noise Huh?
So Carrera wheels have these divots in them.. if you fill them with epoxy, then true them, then put silicones on will really help with the noise.. all of my Carrera cars are loud due to this issue..
My carrera Mclaren 720s is Loud,loud......with quick slicks or not, your 917 sounds quieter...............those SI guides run a little quieter,little bit.
I got some Ortmann tires from Germany,to fit my Cheetah, and those tires really stick,if they do slide they jump right back in line, going to try more of em.
Brad, I will have to try some Ortmann tires. I have only heard good things.. Thanks!
@@twolinesslotcars The shipping is high,but the guy selling them will ship as many sets of tires as you want for the one shipping price.
I'm having race withdrawals :-(
I bet! Soon bro!
Do you have video on determining how much and where to install weight? I would love to understand how much weight is appropriate for a slot car.
I am still trying to figure that out myself.. Harry Wise has some great videos about setting up cars.. and he discusses a lot about where he adds weight.
Thanks how much does your 917 weigh?
@@TravelinginMiniature I will weigh it when I get home from work and let you know..
As for the motor, can we replace it with a aftermarket motor or do we have to keep it with a stock Carrera?
I purchased the Piranha Power Motor recommended for Carrera Digital. It is a direct replacement for most but not all Carrera cars. It would not fit into my 917 without doing some modifications. I have tried the motor in all of my other Carrera cars and they immediately become the fastest car on the track.
Suggestion - Take the rear tires off and fill the "dips" in the hub with gel super glue or ES6000 or other filler, let dry and then sand it smooth. Put the tires back on and see if it is quieter.
John, I will give that a try. I am sure it would help quiet the car down. I had put nail polish on the front tires and that creates some of the noise too. I have since removed the nail polish. It helped with noise.
Marty, all of those Carrera sound to tight? Gears? body screws? axles? lube? Try Super Lube in small amounts.
Some are just loud,the motor is sometimes the issue right outta the box.............the noise dry axles make is obvious and lube is needed.
I have lubed the car, I will continue to work on it. It still performs well, you just can’t hear anything else in the room. 😂😂
@@twolinesslotcarsI can’t use my 917k with these tires much to noisy, going to jump to urethane 👍
@@jdjohn4360 i would say it is the wheels… not the tires. 🤷🏻♂️
The livery is in fact real, tho it Never raced. It was made in 1970. Privately owned Untill today . ;)
It sold today?!?!
@@twolinesslotcars not exactly today, slotcar-today says: „The reproduced car is the Porsche 917 Chassis #036, a car built in 1970 but that never raced, like the #037, and were used as spare chassis. In 1975 Vasek Polak bought it and after several owners it currently belongs to the Richard Mille collection.“ that’s as much as I could find about it. There’s also a picture of the real car attached :)
Hey Marty would love to build your track layout and benchmark some of my cars against it let me know if you can send me your track layout specs and we can compare some timing
I would be happy to send you the layout!
@@twolinesslotcars I think I follow you on Facebook I will message you there
martini 917k
Great choice!
Mixing silicone and rubber/urethane can be an issue. Rubber and urethane tires lay down a nice layer of rubber on the track and the silicone tires will pick it up and long term running of silicone tires will remove that film on the racing line and your cars with rubber tires will then suffer on their lap times. Best for all cars to have all silicone tires or have all cars with rubber/urethane tires
Heatmonster, we have all gone to silicone on the track.. I only ran the rubber tires to show a comparison. We headed your advice. 👍
Rubber lays down rubber, urethane doesnt lay down rubber, or pick up rubber.
Rubber tires, like carrera stock tires? I usually toss em right away.