as i look at the kit designed for the 2v i dont see any reason why it wont work on a 4v bike. now tpo has come out with a 4v kit minus the pods... go figure. the kit is a set of velocity stacks but no pods, it looks to breath through the normal filter, now maybe someone could help me here cause i can be kind of thick headed but why would the engine care which filter is used. it looks to me that the 2v kit can be used on the 04-06 s4r 4v (the ones without the o2 sensor)bikes just get a power commander and proper tune... any and all feed back with me greatly appreciated....
To answer (and for your pm...) I did the TPO pods on my 01S4...
(http://applewood.smugmug.com/photos/201531167_PNviJ-M.jpg)
I had them on my 02 750 first, then when I got the S4, switched them over. All I did was use the rubber pieces that were used on the 750 to connect the throttle bodies to the air box. They are the right diameter for the K&N filters that are used. Easy peasy. Definitely need the PC to adjust the air/fuel mixture. I've been running the S4 like this for 20k miles so far; works great.
Scooby, got a couple more pics at different angles?
The 4v tpo stacks are designed to be used inside the stock airbox. You might be suprised by this, but going from a proper stack in an airbox too a pod filter almost certinly results in a LOSS of HP (but a vast increase in induction noise).
I contacted TPO about the 4v stacks for the monster, and they told me I would get a 100% refund if I was unsatisfied with them. If I could find time to get to a dyno, I'd try them out [thumbsup]
thats really odd that you would lose hp... i just want to open that area of the bike up a little and i love the way the pods look...
Quote from: TAftonomos on January 21, 2009, 07:15:07 PM
The 4v tpo stacks are designed to be used inside the stock airbox. You might be suprised by this, but going from a proper stack in an airbox too a pod filter almost certinly results in a LOSS of HP (but a vast increase in induction noise).
I contacted TPO about the 4v stacks for the monster, and they told me I would get a 100% refund if I was unsatisfied with them. If I could find time to get to a dyno, I'd try them out [thumbsup]
actually if you read the notes on the 4V TPO it says use the stock filter for the SBK but the K&N for the Monster.
I couldn't find the 4V stacks on their website, are they still available?
http://www.tpoparts.com/catalog/product_info.php?products_id=163 (http://www.tpoparts.com/catalog/product_info.php?products_id=163)
Thanks for that, now I just have to wait for a more favourable exchange rate.
Quote from: Capo on January 22, 2009, 06:00:13 AM
Thanks for that, now I just have to wait for a more favourable exchange rate.
exchange rate? where are you?
Quote from: Raux on January 21, 2009, 10:02:08 PM
actually if you read the notes on the 4V TPO it says use the stock filter for the SBK but the K&N for the Monster.
Yes, because most of the aftermarket filters for 916-998 SBK's take up too much space in the airbox, and hurt performance because of it.
Monster uses a filter that doesn't take away from the volume of the airbox, which is important.
Now you can see why pods will hurt more than help.
Quote from: TAftonomos on January 22, 2009, 07:17:04 AM
Yes, because most of the aftermarket filters for 916-998 SBK's take up too much space in the airbox, and hurt performance because of it.
Monster uses a filter that doesn't take away from the volume of the airbox, which is important.
Now you can see why pods will hurt more than help.
would a ram air system be better in this case? Imagine two forward facing funnels directly connected to large tubes containing the pods? I know i'm just imagining things here.
TAftonomos talk to me about this volume of the airbox thing... is it creating some sort of funnel mini ram air thing? also i'm in atlanta what part of the dirty are you in?
also when i look at the tpo 4v kit i see that the flange part of the TB is larger than stock but is the inner diameter any larger? i dont want to shell out 250 bucks just for a bigger flange at least with the 2v i get the pods and the sound... not to mention i kinda like the loud bike thing... hopefully the cars/trucks can hear you coming now.
The 4V bikes have larger diameter throttle bodies. I recently cut the tops off a couple of 4V velocity stacks to make my own pod adapters. It works great, maybe some loss of power but I can't tell it from riding. On my S4Rs the pods are quieter than the modified airbox lid - at least from the saddle. I think the air box focused the sound up under the tank towards my head? The pods send the sound out sideways away from my ears? Not sure.
typically, the loss or gain of power deals with resonance in the intake tract, similar to tuning an exhaust. Power loss probably isn't going to be noticable in "seat of the pants", but would show up on a dyno or racetrack. Since monsters arn't track bikes, who cares :D.
I like the pods myself.
Quote from: TAftonomos on January 22, 2009, 10:59:28 AM
typically, the loss or gain of power deals with resonance in the intake tract, similar to tuning an exhaust. Power loss probably isn't going to be noticable in "seat of the pants", but would show up on a dyno or racetrack. Since monsters arn't track bikes, who cares :D.
I like the pods myself.
+ 1...
(http://applewood.smugmug.com/photos/422317117_S6iHn-L.jpg)
Bill in OKC do you have pics of your setup? and you say that the 4v bikes have larger intakes? the 2v tpo intakes look to be the same diameter as the stock s4r intakes as scooby said he mated them up just fine
did anybody see the red s4r that was on the cover of robb report motorcycling about late 07 ? it had TB on it with no outside filter... the airbox was removed and the red TB could be seen through the frame.
I'll have more pix of mine next week - scoot is in the shop for some minor work right now...
Quote from: frederickcook87 on January 22, 2009, 01:30:38 PM
Bill in OKC do you have pics of your setup? and you say that the 4v bikes have larger intakes? the 2v tpo intakes look to be the same diameter as the stock s4r intakes as scooby said he mated them up just fine
did anybody see the red s4r that was on the cover of robb report motorcycling about late 07 ? it had TB on it with no outside filter... the airbox was removed and the red TB could be seen through the frame.
Here are some pics of my S4Rs - The S4rs has 50mm TBs and I think the 2-valve bikes have 45mm TBs.
(http://i219.photobucket.com/albums/cc190/stankbone/DSC00513.jpg)
(http://i219.photobucket.com/albums/cc190/stankbone/DSC00589.jpg)
(http://i219.photobucket.com/albums/cc190/stankbone/DSC00590.jpg)
nice set up. that looks like the route i will go. get the 2 pods and the crankcase filter. grab a pc3 and get tuned up... do you have part numbers for the filters including the crankcase one, also what did u use to cut the TB's?
I got the TPO crankcase breather kit - I don't have a number for that. The pods are K&N FILTER RC-1252 This part number comes with two filters. If you get one-at-a-time it is p/n RC-1250. I bought the stacks on ebay - didn't want to cut my stock ones up. I used a dremel with a fiber reinforced cut off wheel - then a file to smooth it off. The ridge makes a good cutting guide. It fits really well - the filter neck fits over the ridge and it then pushes down on the springs that retain the stack/pod adapter so after you tighten the hose clamp it is not going anywhere.
Bill in OKC the K&N website list those part numbers as having a 57mm inner diameter for there flange where as the TB are 50mm on the s4r... if you say that they fit fine then i will run with it.... they also have some that have a 51mm inner diameter but the cones are an inch shorter than the ones you have on your bike.... i want the larger cone...
I measured the outside diameter of the cut down stack near the middle of the area where the filter fits with a dial caliper and it was almost exactly 2 1/4". The TBs are measured by their bore size so the difference must be the thickness of the metal. You can measure the diameter of your stacks before buying filters (and before cutting them too) to see if there might be a difference.