Bored, so I made some carbon...

[TAftonomos]

The airbox isn't really that heavy to begin with.  Most people will want a carbon box for 2 things.  Looks, and increased volume = theoretically better performance (especially on a 4v testa)

I'm not sure what that other guy is talking about.  Besides the fact that pre-preg is very expensive, you need to keep it quite cold to keep the resin from cooking off....and oh yeah...you need an autoclave to pressure cook it.

Otherwise you are wasting your $$$.

You guys think most of the carbon parts on the market are pre-preg?

[TAftonomos]

Also, update on the exhaust hanger bracket.

No cracking or other problems, but I'd like to give it another week or 2 to make darn sure.  Its much lighter than the stock bracket, but that isn't that heavy to begin with.  Mainly for looks. 

I've also got some Ti fasteners on order for the muffler to bracket bolts and the bracket to frame bolt.

[Howley]

You're not allowed to post again unless it's with pics.

[truckinduc]

If you could buy pre preg parts they would cost 5 times as much. who would pay 1000$ for an airbox. I figure ill have about 100$ in materials total in mine when its done. It will take alot of time though, and thats the most valuable thing.

[TAftonomos]

You're not allowed to post again unless it's with pics.

If you wanna buy me a new DSR Nikon then I'll be all over it.  Until then I've got to wait.  Camera friend guy told me Cheap or Fast, pick one.

[jesse370]

I fall into the wanting a larger volume air box for my testa motor...That and it would look bad ass beyond that [moto]

BUT here is the question, I run the DP kit with the open airbox, would any extra volume make any difference in that situation still?

[truckinduc]

the lid off the airbox doesnt help in the way you might think. Its not exactly letting more air in that is helping so much, bit it is helping a little. Its changing the resonance frequency of the box. At least this is true for the 2v motors.

[DarkStaR]

PICTURES!!!

[He Man]

I fall into the wanting a larger volume air box for my testa motor...That and it would look bad ass beyond that [moto]

BUT here is the question, I run the DP kit with the open airbox, would any extra volume make any difference in that situation still?

open lid or closed lid, doenst matter. the volume that the engine is gulping at that first hit of the throttle is based on the size of the airbox underneath the filter. (calculus shudders anyone?)
The larger the airbox, the more air the bike has to grab in the intial pull. Every gulp after that is based on the how much air the filter will allow to pass.

If you look at how our engines gulp air, you will see that there are laps in time between each engines intake stroke.  During this time, the aribox fills back up and the next stroke gulps all the air again. If i had to take a guess, a larger airbox will only help low end tq, becasue at the higher RPM spectrum, a larger filter surface area will move more air since the engine is swallong air very rapidly. A ram air would defintely help as it gives a minor force induction effect.

has anyone seen that honda civic video where they replaced the eintake with a leaf blower (litterally a 1/2hp leaf blower) the car got an amazing 7 extra hp with that setup lol. If you made a smaller box with a ram air designed (with an actual scoop sticking out somewhere) you could make up for the size by just going faster and ramming more air into the box.

[truckinduc]

open lid or closed lid, doenst matter. the volume that the engine is gulping at that first hit of the throttle is based on the size of the airbox underneath the filter. (calculus shudders anyone?)
The larger the airbox, the more air the bike has to grab in the intial pull. Every gulp after that is based on the how much air the filter will allow to pass.

If you look at how our engines gulp air, you will see that there are laps in time between each engines intake stroke.  During this time, the aribox fills back up and the next stroke gulps all the air again. If i had to take a guess, a larger airbox will only help low end tq, becasue at the higher RPM spectrum, a larger filter surface area will move more air since the engine is swallong air very rapidly. A ram air would defintely help as it gives a minor force induction effect.

has anyone seen that honda civic video where they replaced the eintake with a leaf blower (litterally a 1/2hp leaf blower) the car got an amazing 7 extra hp with that setup lol. If you made a smaller box with a ram air designed (with an actual scoop sticking out somewhere) you could make up for the size by just going faster and ramming more air into the box.

IM glad you took the time to say that cause i was to lazy too.

  Thats why i like my box design. Almost twice the stock volume for low end power, midrange should be mildly mildly slightly better, then positive airbox pressure past, say 50 mph. Top end, where i feel the monster needs it most to make up for that drag coefecient.

[flanman]

Somewhat off topic but still related... by running say the TPO velocity stacks and a filter would that get in more air or less air than an increased volume airbox?

[sydmonster]

<sarcasm>

I made an orbiting space station with Death Ray entirely out of Carbon. It is staffed by Jessica Alba clones in hot pants.

Unfortunately, I don't have pics   

</sarcasm>

ps: pics! 

<serious as make the beast with two backs>
 Were do I find the Jessica Alba clones at... pics not needed, just directions.
</serious> - Chris

ps, sorry I've contributed nothing.... just want clones dammit!

[Uncle Mofo]

Also, update on the exhaust hanger bracket.

No cracking or other problems, but I'd like to give it another week or 2 to make darn sure.  Its much lighter than the stock bracket, but that isn't that heavy to begin with.  Mainly for looks. 

I've also got some Ti fasteners on order for the muffler to bracket bolts and the bracket to frame bolt.

I'm seriously interested in one of those.

[He Man]

Somewhat off topic but still related... by running say the TPO velocity stacks and a filter would that get in more air or less air than an increased volume airbox?

Im in a pissed of mood right now so you get my attitude of the day....read it again, and think about it.

open lid or closed lid, doenst matter. the volume that the engine is gulping at that first hit of the throttle is based on the size of the airbox underneath the filter.
The larger the airbox, the more air the bike has to grab in the intial pull. Every gulp after that is based on the how much air the filter will allow to pass.

Now what do you think? If you still dont know. What has more area? 2 toilet rolls? or a big square box?

[ducducgooseme]

Im in a pissed of mood right now so you get my attitude of the day....read it again, and think about it.


Now what do you think? If you still dont know. What has more area? 2 toilet rolls? or a big square box?

somebody needs a hug.  come 'ere little guy.