look at this mock up...

GM hummer H2 air filter going to a 4" opening for my turbo!

pretty sick, screw those cheap cone filters or Greddy or HKS little filter elements this thing is huge so its got a ton of filtering area. I doubt anybody has thought of this one.

just thought I share this, I didn't have anything else to do today

anyhow that is not how its going to end up, I decided to keep the paper element box but put it next to the turbo with a small elbow, that stuff of having it go over the hose and over the fan was just a test.

 

uh... ok...

 

lol...

 

More Powah!!

 

pretty pointless putting it right behind a hot radiator. Why not just get a decent size cone filter and route it under the PassSide headlight?

 

You funny guy you!

 

Ya true. You'll lose more from warm air than you gain from a large filter.

 

What the ****? The guy used a dryer hose?

******* lmao

Spec.

 

i lol'd hahahaha this guy is so pumped about this h2 filter

 

Dude bragging about his big *** turbo, but he's still using the dinky *** stock intercooler...

Congratulations...your new air filter is now bigger than your intercooler, so your IC is now your restriction.



-Ted

 

I believe it's less important on a turbo car because the intake air is heated by compression anyways, then cooled by the intercooler...

but I still think it's dumb. Sorry, guy.

 

^^ Cool air is actually more important on a turbo car.

The warmer the intake air, the more the turbo heats it up, e.g.
intake air is 70*, turbo spits out 170*, 100* rise in intake temp.
intake air 90*, turbo spits out 200* air, 110* rise in intake temp

There's an article in the Dear Dave section of SCC somewhere about it

 

no offense but you act like we dont know this?

 

I'm glad you know it, I was just trying to help alexdimen

 

Dryer hose is often used on race cars, More of a problem with the filter location that the TID material.

 

wtf is that, a bubble wrap?

 

Yeah, I've seen race cars use dryer hose for brake ducting and ducting air to the driver. Can't say I've ever seen race cars use it for a TID, maybe for ducting cold air to the air filter but not for the actual TID. Ever seen the 20b FC vs NOS Viper video? The 20b car had some cheap dryer hose for a TID and the turbo sucked it in and killed itself...

 

It might work better if you put it somewhere else. Try mounting it outside the car. lol

 

Agreed.

 

why do all that when you can just get a big K&N?


https://www.rx7club.com/attachment.p...9&d=1191178604

 

Successful troll is Successfull

 

I've always heard the opposite and it made sense to me. Perhaps it depends on the setup or maybe they were talking about chemical intercooling.

Also, what you have just wrote doesn't take into account the intercooler. The larger the difference between the outside air and the air passing through the IC, the better the IC works.

I'm not saying that it's unimportant to have cool intake air and I understand that it lowers the final temperature, just that from my understanding it's not as crucial as on an NA when dealing with turbos and IC's because alot of things change between the inlet and the combustion chamber.

I'd be interested in reading that article if you could find it.

 

You're absolutely right.
The above situation mentioned by Korsch_RS is next to impossible if we're talking about the same, identical vehicle in both examples.
As intake temps get closer to the maximum temperature, you get a smaller increase overall.
That's straight-up physics.


-Ted

 

If the ambiant air was hotter wouldn't it also be less dense and require more compression (heat)?

And having a larger diffenrence in temps in the intercooler would in fact produce a more significant drop in temperature but not lower temperatures. See it like an exponantial graph, the intercooler with the cooler air will always have a lower exit air temperature untill they both reach k.

 

Go to your local engineering school, and tell the Thermodynamics professor your theory, and then he'll tell you how that's wrong.

Here's why, 100% efficient gas compressors raise the temperature a set amount. Because there's no such thing as a 100% efficient gas compressor in the real world, that doesn't happen. Compressors that have less than 100% adiabatic efficiency heat the air on a curve, the warmer the intake air, the greater the rise in temperature.