| Author | Message | ||
     M2typhoon |
Thinking about making some after we made some for our race car. Anyone interested? | ||
| Natexlh1000 |
What is the purpose of these spacers? Like a velocity stack sort of idea? | ||
| Reepicheep |
That's what they do on two stroke dirt bikes... change the intake tract length to give up a little on the top end but gain a little on the bottom end. They advertise them for people trying to convert an MX bike to a trail bike. Tried one on a KX-60, and was underwhelmed. | ||
| Mytuber |
I think what you are trying to do is insulate the carb. from the intake manifold. I think you want a warm intake for atomization but the carb. to be as cool as possible.I am pretty sure phenolic does not transfer heat. | ||
| M2typhoon |
^ Correct, we just finished making both legal and a couple no so legal carb plates for nascar use, not like a velocity stack. It's more for insulating purposes and does not do anything for intake velocity in general but it does change the torque curve and upper RPM performance since it creates a plenum effect. I have some material left over enough for a few plates, thought I throw it out there and for the record, you didn't see much of change because it was a KX 60 and two strokers DO NOT respond well to changes in intake length or size.. The more cubic inches, the bigger the change. (Message edited by m2typhoon on February 10, 2014) | ||
| Beardo |
I might be...but, how much?? | ||
| S1owner |
The idea is to keep the air as cool as possible coming into the intake cold air makes better power. I eould be interested! | ||
| M2typhoon |
Since they aren't that huge, about 30 bucks + shipping. I'd really have to figure out how much raw material I'm using. The material I have is 1" thick and I'm sorta perplexed as to how to mount it since there are no bolts.... any ideas? (Message edited by m2typhoon on February 10, 2014) | ||
| M2typhoon |
Well, after doing more research, the only way it can work properly is if you have a flange mount intake from NRHS... damn I was so close... | ||
| S1owner |
I run a hyper charger it has an aluminum spacer it should work in place of it | ||
| M2typhoon |
The spacer has to go between the carb and the intake manifold for it to work properly. | ||
| Gusm2 |
So how far is the carb likely to stick out from the side of the bike? | ||
| S1owner |
Yes now that you mention it it does go between the carb and intake so it would not work | ||
| Beardo |
There are flange adapters for the stock manifolds. It would be a matter of longer breather bolts and a carb support. | ||
| M2typhoon |
I really want to do something with this. As far as the carb sticking out, its a property of thick you make spacer. It can be as thin as 3/16" but that would just Be for heat. Id be willing to guess the increase in plenum effect would help the performance. Im gonna have to dive deeper into this and maybe make a kit of some sort and test it on my M2. Beardo, where are these flange adapters at? (Message edited by m2typhoon on February 10, 2014) | ||
| Beardo |
You can get them on eBay. J&P, Drag Specialties and the like carry them too. | ||
| Buell_bert |
Why would you not elongeate the tube and decrease the filter DP so you cool the incoming air and lower the restriction of the air flow. As we all know denser air will contain more O2 content plus by having it in front of the vehicle and increasing positive pressure thru velocity increases the O2/air content as the speed increases helping on HP and Torque. Personally I just like going on a nice slow ride. I like the coulee and valley riding here. | ||
| Buellistic |
That is why "i" left the OEM SNORKEL on because it came already TUNED from the FACTORY !!! | ||
| Hootowl |
The "phenolic" is likely an engineered plastic called polyphenylene sulfide. If you have a car that's fewer than 15 years old, the stuff is all over your engine. | ||
| M2typhoon |
Phenol formaldehyde resin and a canvas product sandwiched to produce tubing, blocks and sheet. | ||
| Phelan |
FYI unless you're using an S&S carb, which is very short, the CV and/Mikuni carb will likely contact the frame if you space out the carb, unless you space it waaaay out to clear the frame. | ||
| Buellistic |
Changing the intake track can do two things: Help your performance or hurt it ... ie: What are you tuning your engine performance for is the most important question ??? |
