Supercharger or Turbo ?

[Dimman]

In all honesty I shudder a bit every time I see a Subaru with an air-air intercooler on top of the motor.

The setup I would like to see is the positive-displacement supercharger from the first photo, with a better IC arrangement. I don't know if they could do an effective front-mount with it, otherwise a top-mount water-air, with a front-mount rad/cooler (and maybe some ice in the tank). That would make for a really nice to drive setup.

The other two are centrifugals which I really don't get. It's like the compressor half of a turbo driven by a belt.

What I'm waiting for is for someone to make a twin-screw positive displacement with an integrated intake manifold and water-air IC, for a factory-style install right on top of the motor.

[ichitaka05]

Originally Posted by Dimman

In all honesty I shudder a bit every time I see a Subaru with an air-air intercooler on top of the motor.

The setup I would like to see is the positive-displacement supercharger from the first photo, with a better IC arrangement. I don't know if they could do an effective front-mount with it, otherwise a top-mount water-air, with a front-mount rad/cooler (and maybe some ice in the tank). That would make for a really nice to drive setup.

The other two are centrifugals which I really don't get. It's like the compressor half of a turbo driven by a belt.

What I'm waiting for is for someone to make a twin-screw positive displacement with an integrated intake manifold and water-air IC, for a factory-style install right on top of the motor.

Raptor SC is came concept as CompTech's S2k's SC kit. Don't tell me you haven't heard of S2k's SC kit.

& it is proven to work awesomely!!! IIRC Orido even loved the driving feels.

As for fluid cooled IC, 3rd pic isn't air-air cooling system. It is actual fluid in there to cool the air.

FMIC will get cooler air into the engine, but it lag more than TMIC due to distance between turbo to Engine is longer than TMIC. While TMIC get less lags than FMIC, but it cannot get cooler air into the engine than FMIC... so I was heard. I'm not SC or Turbo PhD

Also even though it said Top Mount... IC is actually Back/Rear of the Engine. Top of Tranny section.

[Dimman]

Originally Posted by ichitaka05

Raptor SC is came concept as CompTech's S2k's SC kit. Don't tell me you haven't heard of S2k's SC kit.

& it is proven to work awesomely!!! IIRC Orido even loved the driving feels.

As for fluid cooled IC, 3rd pic isn't air-air cooling system. It is actual fluid in there to cool the air.

FMIC will get cooler air into the engine, but it lag more than TMIC due to distance between turbo to Engine is longer than TMIC. While TMIC get less lags than FMIC, but it cannot get cooler air into the engine than FMIC... so I was heard. I'm not SC or Turbo PhD

Also even though it said Top Mount... IC is actually Back/Rear of the Engine. Top of Tranny section.

Comptech used to make positive displacement SC's for the NSX and that makes a lot more sense for the Hondas. Add some much needed low-end torque.

Don't think they intercooled them, but they only ran 6 psi or something...

I think part of the reason the centrifugals are popular is they probably make the cars FEEL insanely fast. Since they build boost in-step with motor RPM the car probably feels like it just gets more and more powerful as revs build. In an S2000, boost would keep building all the way to 9K, and that must feel amazing.

On a turbo making peak boost by say 3000 rpm and maintaining it all the way to redline it may feel like the power 'flattens-out' because of the natural power curve of the motor. However a well-designed turbo can make more peak boost far sooner than a centrifugal SC because the turbine can reach its operating rpm way before whereas the centri SC has to wait for the motor.

The power curve is much better on the turbo, but the centri SC probably feels like it just pulls and pulls and pulls.

As for the location of the IC in Subarus (and the 3SGTE's setups, I won't discriminate)... well they should have used a water-air if they really wanted to reduce the piping lag. The problems I have with locating an air-air IC there is that engine bay heat rises and even with their big hood scoops, they are trying to force air into an already high pressure location. There's far less air movement over it than for example the Evo's front mount with hood vents. High pressure location (front of car) air moves quickly, easily and in large amounts, through the IC and escapes out though the low pressure location on the hood.

If it was water-air (like the 3rd pic), they could mount a cooler/radiator for it in front of the car rather easily, not having to worry about piping lag and airflow. Negatives are cost, complexity (extra pump) and weight though.

Why are there are always compromises? grrr...

[ichitaka05]

Originally Posted by Dimman

Comptech used to make positive displacement SC's for the NSX and that makes a lot more sense for the Hondas. Add some much needed low-end torque.

Why are there are always compromises? grrr...

Yes, CompTech NSX was another famous one. IIRC it became first US Touge Monster... til R34 took over the place

Yes... wishes for compromises of between SC & Turbo, there would be ultimate FI.

[70NYD]

twin charge system anyone?? thats what i will throw on ther anyway

[Midship Runabout]

Originally Posted by ichitaka05

Yes... wishes for compromises of between SC & Turbo, there would be ultimate FI.

All you need

[Dimman]

Originally Posted by Dixie Normous

All you need

Are enough retards still buying those that they're still in business?

[C-Bone]

LOL they must be....

[ichitaka05]

Originally Posted by Dixie Normous

All you need

F'ck, thanks to you, I'm chocking on the drink and laughing at the same time. I can't have any drink while I read this forum.

[futureOwner]

Originally Posted by ichitaka05

No offense, but what century you live in? Most of current superchargers are efficient as turbos.

[u2b]q5M8NSS8Krc[/u2b]

http://xcceleration.com/imp-gallery-rs.sc.dynosheet.htm
2.35 Liter H4 20 psi pushing 412hp w 332tq...

it's not good enough for ya?

Don't get me wrong, I'm not saying Turbo sucks. Just saying current technology Supercharger and Turbo are almost equal level.

I'm no pro, I'm just basing my thoughts off a video I watched a while back about Super/Turbo chargers.

[jyoo]

turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo turbo

[Kni6ht]

I am def. hopeing for a turbo model or if not very fast aftermarket turbo kits. SCs are nice but i love the feel of getting into boost range and being sucked back into the seat.

[ichitaka05]

Originally Posted by Kni6ht

I am def. hopeing for a turbo model or if not very fast aftermarket turbo kits. SCs are nice but i love the feel of getting into boost range and being sucked back into the seat.

You know that, SC can do that too right? Being sucked back into the seat... Some of the NA can do that too

[GenkiElite]

Duct tape and a leaf blower ftw.