Author Topic: My trip to APT (Home of the SmartCarb) (Read 13714 times)

rk88r · « **Reply #15 on:** August 03, 2015, 06:45:55 PM »

Great job Ryan, did your engine prefer the 40 over the 38?

Pumashine · « **Reply #16 on:** August 03, 2015, 09:09:07 PM »

Quote from: troybilt;56770

Well the airbox, I can get made in a matter of a couple weeks/days. Tony could probably cut and form them even quicker than my local guy. Once I establish the intake is right I'd design the box to fit the intake and install on the frame.

I'm in for any fix we can get with this intake boot problem with the smart carb. The puma and saber intakes are much longer than pro-x and sphinx. My boot is caving in on itself.

Skeans1 · « **Reply #17 on:** August 04, 2015, 12:06:03 AM »

Led intake with a 40mm billet smart carb.

Sent from my iPhone using Tapatalk

Burns363R · « **Reply #18 on:** August 04, 2015, 06:54:37 AM »

Wow sceans that looks like it would work great. I assume no airbox though right.

troybilt · « **Reply #19 on:** August 04, 2015, 07:31:53 AM »

The prototype ABS intake is going out this morning to you Ryan. I've been experimenting with a brand new material over the night and this morning. Called Taulman Nylon Bridge. It is extremely strong and flexible. I could see this as a potential candidate for printing intakes to use indefinitely. Plus they are easy to die different colors and relatively cheap to make. As soon as I get one printed completely, still experimenting with machine settings I'll be able to send one out for testing. Stoked about this new material, I just need to become and expert on this material like I am with the ABS stuff.

rablack21 · « **Reply #20 on:** August 04, 2015, 08:08:03 AM »

Update 8/4/15:
I installed an airbox eliminator kit last night and ran it. With the lessened airflow than the bare carb, this rod is now too rich on the top end. Bottom end is still strong, but the rod is giving more fuel at top end than air to match it. I took the kit off back to the bare carb and the engine ran strong all the way through again. So while this rod is fine with perfect airflow, it is actually a little too rich when running the air filter. I was currently running an L072 rod, but I got a Q05 and Q07 rod coming.

rablack21 · « **Reply #21 on:** August 04, 2015, 08:10:14 AM »

Quote from: rk88r;56774

Great job Ryan, did your engine prefer the 40 over the 38?

That really depended on what you want to use the engine for. The 40 had some extra wide open power, but the 38 accelerated faster. For mx, I personally think the 38 would have the advantage. For duning or drag racing, the 40 would have the advantage.

rablack21 · « **Reply #22 on:** August 04, 2015, 08:11:13 AM »

Quote from: troybilt;56799

The prototype ABS intake is going out this morning to you Ryan. I've been experimenting with a brand new material over the night and this morning. Called Taulman Nylon Bridge. It is extremely strong and flexible. I could see this as a potential candidate for printing intakes to use indefinitely. Plus they are easy to die different colors and relatively cheap to make. As soon as I get one printed completely, still experimenting with machine settings I'll be able to send one out for testing. Stoked about this new material, I just need to become and expert on this material like I am with the ABS stuff.

This sounds like an interesting break through, Troy. Interested to see what you come up with!

Skeans1 · « **Reply #23 on:** August 04, 2015, 09:24:16 AM »

Quote from: Burns363R;56797

Wow sceans that looks like it would work great. I assume no airbox though right.

Yeah Kyle no air box, no reason you couldn't cab up some sided and bottom for it though. I'll have a buddy come up tonight and see if we can't shoot some video of mine running with the Q07 rod in Ryan.

etccb · « **Reply #24 on:** August 04, 2015, 04:19:48 PM »

A great sc info run ryan. Glad you were able to get with them and figure some things out.

Allison#51 · « **Reply #25 on:** August 05, 2015, 12:02:54 AM »

Quote from: troybilt;56799

The prototype ABS intake is going out this morning to you Ryan. I've been experimenting with a brand new material over the night and this morning. Called Taulman Nylon Bridge. It is extremely strong and flexible. I could see this as a potential candidate for printing intakes to use indefinitely. Plus they are easy to die different colors and relatively cheap to make. As soon as I get one printed completely, still experimenting with machine settings I'll be able to send one out for testing. Stoked about this new material, I just need to become and expert on this material like I am with the ABS stuff.

Troy another thing I noticed with the cast smartcarbs is the mounting flange on the intake boot side of the carb is fairly short. If there's any way you could get your boot or rubber section that you use to lock into the groove on the carb flange that would be a big improvement.

troybilt · « **Reply #26 on:** August 05, 2015, 07:07:30 AM »

Yes I can do that. I would have UPP make the adapter boots that go from the carb/smart carb to the intake. Problem is it takes forever (months) to get parts from them, so I'm prototyping using the 6ply silicone hose. I've had great luck with that on the 450r's. I'm considering doing the polyurethane rubber molding manufacture in house as well. There's just not enough hours in the day to do everything I want to do.

I did some experiment prints (small pcs) last night with Nylon material and that stuff is fantastic. Its extremely strong almost indestructible. So I've got another intake for my yamaha printing right now. Problem is its a 35-40hr print for just one unit. I'm going to do some field and structural testing of the material and see how it holds up compared to the carbon fiber.

dem3500 · « **Reply #27 on:** August 05, 2015, 12:56:36 PM »

i should have gotten involved with you guys a long time ago haha. im having all kinds of trouble with a stock boot to a umr aluminum air box that i made a lid for. to top that off its on an arens frame! im on the edge of cutting and re welding parts of the air box. if i hang it low enough for the boot to fit right the caliper hits it and shoves it up pinching my snorkel and kinking the intake boot. oh well i guess ill hang back with @spiritshine and wait for you to finish lol. i can handle re making the air box to work for me its just the boot i really need. the stock one is too stiff and really necks down too far for my 38.

Allison#51 · « **Reply #28 on:** August 09, 2015, 10:21:56 PM »

Quote from: troybilt;56816

Yes I can do that. I would have UPP make the adapter boots that go from the carb/smart carb to the intake. Problem is it takes forever (months) to get parts from them, so I'm prototyping using the 6ply silicone hose. I've had great luck with that on the 450r's. I'm considering doing the polyurethane rubber molding manufacture in house as well. There's just not enough hours in the day to do everything I want to do.

I did some experiment prints (small pcs) last night with Nylon material and that stuff is fantastic. Its extremely strong almost indestructible. So I've got another intake for my yamaha printing right now. Problem is its a 35-40hr print for just one unit. I'm going to do some field and structural testing of the material and see how it holds up compared to the carbon fiber.

Sounds awesome Troy. I definetly appreciate you going through with all the prototyping and testing and listening to what we want. I find all of your posts interesting. Can't wait to see what else you come up with.

jcs003 · « **Reply #29 on:** August 11, 2015, 05:35:39 AM »

this is very good stuff. scary what a couple ambitious engineers can do with their hobbies.

John