Author Topic: Robl Engineering Prototype Intake Completed (Read 83150 times)

rablack21 · « **Reply #135 on:** April 20, 2016, 11:45:13 AM »

Quote from: Burns363R;66773

If we made a different rear brake caliper bracket that rocked the rear brake farther towards the back of the bike, you wouldnt have any clearance issues. I would rather do that than notch an airbox. Just sell it as a package deal to relocate the rear caliper. Might need a little longer braided line. I know my rear braided lines have several inches to spare.

Mine do as well. It's not a terrible idea. It's worth considering. Although not all years are the same, so you would have to have more than one type of caliper bracket. The atc 250r's use a different type caliper bracket. And some guys, like myself, are running 450r rear calipers. I know I currently have to use the 450R caliper bracket, I believe, to make the 450r caliper work.

Skeans1 · « **Reply #136 on:** April 20, 2016, 02:54:28 PM »

Quote from: rablack21;66774

Mine do as well. It's not a terrible idea. It's worth considering. Although not all years are the same, so you would have to have more than one type of caliper bracket. The atc 250r's use a different type caliper bracket. And some guys, like myself, are running 450r rear calipers. I know I currently have to use the 450R caliper bracket, I believe, to make the 450r caliper work.

Only thing is I'd think you'd change the braking power to the rear like a banshee vs the top style.

troybilt · « **Reply #137 on:** April 20, 2016, 03:04:44 PM »

I like that idea, I can surely look into that as well. Hadn't thought of that.

Skeans1 · « **Reply #138 on:** April 20, 2016, 03:53:35 PM »

Quote from: troybilt;66786

I like that idea, I can surely look into that as well. Hadn't thought of that.

Troy is there anyway you could do the boot ring and bracket for the dune guys then do a bolt on box after?

troybilt · « **Reply #139 on:** April 20, 2016, 04:29:25 PM »

The airbox eliminator style will come next. Separate intake design for that....

hickwheeler · « **Reply #140 on:** April 20, 2016, 07:04:24 PM »

Quote from: troybilt;66788

The airbox eliminator style will come next. Separate intake design for that....

Seems like this style could be done a lot faster and end up with product being sold sooner.

troybilt · « **Reply #141 on:** April 20, 2016, 07:33:00 PM »

Quote from: hickwheeler;66791

Seems like this style could be done a lot faster and end up with product being sold sooner.

True, but there is plenty of eliminator style intakes out there already like LED, etc.. The guys that race MX/XC are in dire need of some improvements in the intake and airbox area. I'll get started on those as well. it will be a rigid style intake vs a silicone intake. But I'm not going to throw something out there without extensive dyno testing. I''l put the same effort in the R's as I do the 450 stuff.

Skeans1 · « **Reply #142 on:** April 20, 2016, 07:54:17 PM »

Quote from: troybilt;66792

True, but there is plenty of eliminator style intakes out there already like LED, etc.. The guys that race MX/XC are in dire need of some improvements in the intake and airbox area. I'll get started on those as well. it will be a rigid style intake vs a silicone intake. But I'm not going to throw something out there without extensive dyno testing. I''l put the same effort in the R's as I do the 450 stuff.

The led intake I had would rub the frame and shock bad enough it broke a boot Troy there maybe plenty out there but something that works and won't cause issues are a different story.

troybilt · « **Reply #143 on:** April 20, 2016, 09:08:33 PM »

If you want to run a plastic I take I can have those ready without a box rather quickly, but the carbon fiber and silicone boots take some time to sort out with suppliers.

swanitalia · « **Reply #144 on:** April 21, 2016, 08:08:13 AM »

I can't wait till the airbox/intake are ready to try out, been needing a new airbox for a while now for XC racing.

Skeans1 · « **Reply #145 on:** April 21, 2016, 09:18:16 AM »

Quote from: troybilt;66796

If you want to run a plastic I take I can have those ready without a box rather quickly, but the carbon fiber and silicone boots take some time to sort out with suppliers.

That'd be fine Troy I'd be willing to try it on my puma.

Tbone07 · « **Reply #146 on:** April 21, 2016, 09:20:13 AM »

Quote from: troybilt;66788

The air-box eliminator style will come next. Separate intake design for that....

I got my buddy to buy your 450r intake kit w/ air-box and it looks sick. You can turn it into an eliminator style by unbolting the rest of the air-box right?

Quote from: troybilt;66792

True, but there is plenty of eliminator style intakes out there already like LED, etc.. The guys that race MX/XC are in dire need of some improvements in the intake and air-box area

Amen to that. Troy will an air-box lid like the one shown below will be offered?

troybilt · « **Reply #147 on:** April 21, 2016, 09:55:35 AM »

Quote from: Tbone07;66807

I got my buddy to buy your 450r intake kit w/ air-box and it looks sick. You can turn it into an eliminator style by unbolting the rest of the air-box right?

Amen to that. Troy will an air-box lid like the one shown below will be offered?

tbone, originally yes I was going to follow the same train of thought with the 250r airboxes. The problem is the subframe rails are angled in, so part of the box has to be below the subframe and the rest has to fit in between. Unless I chop it up and have a ton of welding... I decided to keep it somewhat simple. What I can do is offer a package so if you want to run an eliminator style, you'd just have to swap to the bracket. I tried to do a similar lid, but the lid can't be flat like I was able to do on the 450r. So far the R has been far more complicated to do an airbox for, even more so than my YFZR setup.... howeve, I'm not complaining, I like the challenge.

troybilt · « **Reply #148 on:** April 21, 2016, 09:57:39 AM »

If I back off from using the S&B filters, (which are really good filters!!)... there is more room to work with if I stick with the standard 250r filters. I might see if S&B can make a custom filter for me that is similar in size to the standard 250r filters.

Tbone07 · « **Reply #149 on:** April 21, 2016, 10:13:48 AM »

Quote from: troybilt;66808

tbone, originally yes I was going to follow the same train of thought with the 250r airboxes. The problem is the subframe rails are angled in, so part of the box has to be below the subframe and the rest has to fit in between. Unless I chop it up and have a ton of welding... I decided to keep it somewhat simple. What I can do is offer a package so if you want to run an eliminator style, you'd just have to swap to the bracket. I tried to do a similar lid, but the lid can't be flat like I was able to do on the 450r. So far the R has been far more complicated to do an airbox for, even more so than my YFZR setup.... however, I'm not complaining, I like the challenge.

I noticed the difference with the subframes too. I'll never ever run an eliminator setup so you do what you want with that. Lol

Quote from: troybilt;66809

If I back off from using the S&B filters, (which are really good filters!!)... there is more room to work with if I stick with the standard 250r filters. I might see if S&B can make a custom filter for me that is similar in size to the standard 250r filters.

Would custom filters be more difficult to obtain in the future? And how fast could we get a filter if needed in a pinch?

It would be nice to be able to go to any online store and buy the type of filter (foam, K&N) that is desired. Whether that's a 450r or 250r filter.

How significant is the difference in flow capabilities between the 450r and 250r filters? I imagine if you're in big Sphynx or Puma territory it would be greater