How much room between the turbo and intake manifold?

[longislandwrx]

I dont have my Subaru at work today but had a idea on the way in... is there enough room between the stock turbo location and the intake manifold to get an 90 elbow on there. I'm thinking about an inlet that doesn't run over the hot engine. On the stock car it wouldn't help because the strut tower was there but on the tube framed 818 I was hoping to steer well clear of the motor... just dont know if the 2.5" or so needed is there.

Anyone near a car that can measure?

[Mechie3]

No, unless than 90deg bend is a 1/2" diameter. There's just enough room to get a screwdriver in there to tighten the turbo inlet.

The usual Subaru tuner way around this is a rotated turbo. Often, these are much bigger turbos, and usually don't utilize the TMIC, but that is typically because the turbo is huge. You can fabricate a setup to be rotated and TMIC.

http://www.iagperformance.com/images/project_cars/08_STI/image_07_635.jpg

http://www.perrinperformance.com/shared/images/jeff_pics/promo_pics/completeturbokit.jpg

[longislandwrx]

Yeah i'm familiar with rotated mount... I even installed a turbo inlet on my current setup, but could remember how tight it was. repressed bad memories?

any rotated uppipes you have seen that will mate up with an ihi? not ready to ditch my VF48.

[Mechie3]

Never really looked into them much. Most people that go rotated have a GTsomething###R turbo.

[Red Tag]

You guys have any idea if we can install a bigger TMIC in the 818? I'm not sure what the space constrains will be on the 818 engine bay.

[longislandwrx]

should be plenty of room.

[Turboguy]

From your OP it seems like you're just trying to get the inlet away from the engine. Is that your sole focus in this exercise?


If so, there are some pretty simple ways to slay that dragon.

[Rasmus]

It's tight in there. In my opinion, I don't think it could be done.

http://i162.photobucket.com/albums/t278/RasmusHansen/SubaruParts/IMG_4920_zps3cdf6a94.jpg

http://i162.photobucket.com/albums/t278/RasmusHansen/SubaruParts/IMG_4919_zps71bd1c2c.jpg

Would seem much easier to get a rotated mount or just route under the intake manifold.

[Evan78]

If you're trying to reduce the amount of engine heat warming air passing through the inlet, perhaps you should change inlet materials or add insulation instead. Moving away from heat sources as you're asking about would help even more, but these are probably the easier improvements.

[longislandwrx]

From your OP it seems like you're just trying to get the inlet away from the engine. Is that your sole focus in this exercise?


kind of... im trying to get it from out from under the intake manifold.


Rasmus... thanks for the pics... looks too damn tight. i guess through the tunnel of doom it goes.

[Turboguy]

The amount of radiant heat the intake air will pick up is surprisingly minimal.


However, if you're still concerned about it, wrap it in reflective, insulated material. They make products that can guard against radiant heat levels as high as 1,000 degrees F, so I'm sure a bit of engine block heat is no biggie. I myself lined the outside of my MK3 footboxes near the side pipes with the stuff, and also wrapped a fuel line that passes near them.

[apexanimal]

There is a good manioc thread "beat the heat" and talks a lot about the benefits of a turbo blanket, wrapped header and dp, and reflective tape on the tmic and y-pipe... And even phenolic spacers for the im...

[longislandwrx]

http://forums.nasioc.com/forums/showthread.php?t=1841582

thank you

[apexanimal]

Welcome

[Turboguy]

yup - that's the stuff I was talking about.



DEI also makes several products similar to that header wrap with an adhesive backing, and it's one of those that I used on my MK3 footboxes.