Bends for DIY hardpipes?

[StefanLarsson]

Which bends should i get for my DIY harddpipes?
I'm going to weld my own 2,5" hardpipes and I figure that someone must have done this before...
I'm doing both upper and lower pipe and the bends available are 30, 45, 60, 90 degrees. There is also a almost U bend available.
Anyone got the recepie?:icon_bigg

Regards
Stefan, Sweden

 

[The Reaper]

i believe i used (2) 2 foot straights and (3-4) 90* U-Bends when i did mine. and i did upper and lower.

 

[whenmunkysfly]

how about if your going ffim anyone know the bends for that?

 

[whenmunkysfly]

anyone? lol

 

[cjsupra90]

depends on how you are going to route the upper and which intercooler you have.

The lower is 2 45deg. for best flow (least restriction).

Again, it depends on how you plan on running the upper as to what all you will need. Mine when I did it was using the early intercooler and routed it through the original air box snorkle hole. All I needed was a LR (long radius) 90 and a single 45.

If you talk to Jayson (Idealsupra) you might be able to get pictures of the set that I built if he still has them. I sold them to him about a year ago.

 

[cjsupra90]

For the FFI, turbo to IC would still be 2 45deg. and a bit of straight and the IC to TB would either be 2 or 3 90's depending on the IC outlet.

 

[whenmunkysfly]

For the FFI, turbo to IC would still be 2 45deg. and a bit of straight and the IC to TB would either be 2 or 3 90's depending on the IC outlet.

with is with an intercooler with side openings correct?

 

[Satan]

Which bends should i get for my DIY harddpipes?
I'm going to weld my own 2,5" hardpipes and I figure that someone must have done this before...
I'm doing both upper and lower pipe and the bends available are 30, 45, 60, 90 degrees. There is also a almost U bend available.
Anyone got the recepie?:icon_bigg

Regards
Stefan, Sweden

I know this will sound stupid, so please just bear with me...

Get some PVC pipe and several pieces of different bends. You can almost pre-fab what you'll need for less than about $20 US.

That way, you order just what you need and you even get to see where you might need different angled couplers, instead of pipe. Everyone's routing is different and this is by far the cheapest/easiest way to test-fit, before spending lots more $$ and time.

Good luck!!

 

[whenmunkysfly]

thats a good idea thanks.

 

[StefanLarsson]

depends on how you are going to route the upper and which intercooler you have.

The lower is 2 45deg. for best flow (least restriction).

Again, it depends on how you plan on running the upper as to what all you will need. Mine when I did it was using the early intercooler and routed it through the original air box snorkle hole. All I needed was a LR (long radius) 90 and a single 45.

If you talk to Jayson (Idealsupra) you might be able to get pictures of the set that I built if he still has them. I sold them to him about a year ago.

I'm using the stock intercooler for now and I'll route through the snorkel hole.
I have a -91 Supra so I guess I have the later model intercooler.

/Stefan, Sweden

 

[cjsupra90]

yeah, you will have the later IC so you can you would need an extra 90 for the IC to TB pipe. you might be able to get-a-way with a single 180 U-bent inplace of the 2 90's

 

[bigaaron]

Some exhaust shops that do custom work will have various scrap bends from exhaust they have made. I used 2.5" aluminized steel pipe for mine a few years ago. Very easy to mig weld that stuff.
Now I have been selling the aluminum piping kits I find that it is a lot easier to use those with couplers and the whole job requires no welding.

 

[whenmunkysfly]

if i went with three inch piping exactly how much is it really going to lag? will it really be that bad?

 

[bigaaron]

if i went with three inch piping exactly how much is it really going to lag? will it really be that bad?

Other then impressing your friends I can't think of any reason to run 3" IC piping for anything other then 700whp+.

 

[whenmunkysfly]

Other then impressing your friends I can't think of any reason to run 3" IC piping for anything other then 700whp+.

well im not quite sure of my goals yet im thinking 500rwhp but when i get there i might just want more.lol

 

[IJ.]

I'm 500+ on 2.5"

 

[suprahero]

I'm 500+ on 2.5"

Bragger......................................:biglaugh:













J.K.....IJ...I've heard that 3" pipe is a big mistake. I'm going to go with some new 2.5 inch pipe myself................lol

 

[IJ.]

The numbers came out in favour of the 2.5" so that's what I went with and am very happy with the throttle response

 

[suprahero]

In IJ's situation, response= tire destruction....................lol

 

[IJ.]

Yeah that's a bug I need to work on