Tight radius silicone bend

[Richyvrlimited]

Anyone know of a good source for these?

Needs to be 2.5" ID. a standard 90deg bend will not fit, even when trimmed as much as possible, hence the requirement for a tight radius version.

Cheers

[stevieturbo]

Richyvrlimited said:

Anyone know of a good source for these?

Needs to be 2.5" ID. a standard 90deg bend will not fit, even when trimmed as much as possible, hence the requirement for a tight radius version.

Cheers

Are most silicone bends not a tight radius ? Might just be a case of shopping around various makers.

Or get one custom made.

[Richyvrlimited]

stevieturbo said:

Are most silicone bends not a tight radius ? Might just be a case of shopping around various makers.

Or get one custom made.

Not that tight really. I need something along this line: (not available with a 2.5" inlet & outlet)



I've called a couple of makers and just ended up on hold, have also pinged a few emails, but thought I'd check to see if anyone recommended one, or knew of something specific available.

[stevieturbo]

How much space is there around the top part of that hose ?

What is the actual application ?

Would building an alloy top hat type of setup work ?

Viper, Samco, Roose Motorsport etc should all be able to a custom hose. Although given shape that might be expensive unless you were making the actual steel mould yourself

eg, google "carb hat" although these would be larger diameter



http://ls1tech.com/forums/parts-classifieds/126498...

[Richyvrlimited]

Space is extremely tight, the car is an MX5 with a roots blower sat on a replacement intake manifold. The TB is pointing to the firewall, however sat on the firewall is the clutch master cylinder.

You can get a piece of wirewound flext tubing to fit in the gap. I'd just replace the wirewound flexi with new (it's suffered with age and has holes causing all sorts of run/idle issues with the MAF based ECU). However the idle vale needs a metered air source, currently than means another hose running to the front of the engine bay. I'd like a silicone pipe then I can add a takeoff to it and have a short hose to the idle valve.

This is the car/engine bay. i'll take specific shots tonight of the space available.

[stevieturbo]

Whilst more costly unless you can do it yourself, it sounds like a fabricated alloy piece might be better, then just bolt the TB to it facing forwards

eg although these are cast you get the idea.
The suction side of that style of blower is important to get right and not create a restriction.





http://s127.photobucket.com/user/rosspec/media/3V%...

http://www.svtperformance.com/forums/showthread.ph...

[Richyvrlimited]

There's nowhere to put something like that unfortunately. To the left you have the brake master cylinder and to the right the engine. You'd have to go down, but the steering shaft is there....

That said I would have a bash at it, but I only have access to a MIG, and a large vice.

A downside would be that you're also increasing the throttled volume tract, granted not by a lot, but one of the appeals of this setup is the almost IRTB style throttle response.

can you expand on being careful with the suction on the blower? The current Throttlebody is smaller than the inlet to the blower, but there is a transition plate of sorts between the two.

[stevieturbo]

Bound to be room to shape something. Whether above the blower, below the blower, to one side, etc etc.

Not saying the shape would be easy though, but there should be options to re-route.

And I mean restrictive via that swan neck type pipe.

As you're still largely relying on atmospheric on that side of the blower, any restrictions there will potentially cost power far more than a bad shape on the boosted side of the blower.

[43655]

not sure if this helps, but you can make your own hoses.
also not so helpful but i can't remember what it's called either
but it's a tape stuff, you wrap it together and then it bonds together
Watched a guy making a new piece of boost hose on a T5