Terrano snorkel design

[u13turbo]

Im looking at making my own snorkel, i have a snorkel head so now i just need to buy the piping. Has anyone made one before? with measurements etc for it?

And i hear with steel snorkels you have to paint the inside of it to prevent moisture sitting in it?

[kiwipete]

Im looking at making my own snorkel, i have a snorkel head so now i just need to buy the piping. Has anyone made one before? with measurements etc for it?

And i hear with steel snorkels you have to paint the inside of it to prevent moisture sitting in it?

Check out this post of mine, http://www.offroadexpress.co.nz/Forums/viewtopic.php?f=18&t=23250, I recently made a 3" mild steel one. Sourced from auto bend and slightly modified to suit my customising.
I blocked off both ends and poured a large cup of "Black Guard" in it, shook it around and emptied it. No rust issues now.

[vinceparts]

heres the stainless snorkel i made up and polished for my surf, bought two 90 degree bends and a piece of staight, i made it out of 2.5 inch as thats what size the factory inlet to the airbox is , i may paint it hammer effect black in the future,

[u13turbo]

Im looking at making my own snorkel, i have a snorkel head so now i just need to buy the piping. Has anyone made one before? with measurements etc for it?

And i hear with steel snorkels you have to paint the inside of it to prevent moisture sitting in it?

Check out this post of mine, http://www.offroadexpress.co.nz/Forums/viewtopic.php?f=18&t=23250, I recently made a 3" mild steel one. Sourced from auto bend and slightly modified to suit my customising.
I blocked off both ends and poured a large cup of "Black Guard" in it, shook it around and emptied it. No rust issues now.

Shit that looks good! May i ask how much the pipe from auto bend cost? did you just tell them where you wanted the bends and they done it?

[u13turbo]

heres the stainless snorkel i made up and polished for my surf, bought two 90 degree bends and a piece of staight, i made it out of 2.5 inch as thats what size the factory inlet to the airbox is , i may paint it hammer effect black in the future,

Looks good. How do you cut the holes in the gaurd? Its a once only chance to get it right =/

[sibainmud]

I cut my guard and the inner with a hole saw. As i use them daily, some skill was involved not to break the centre drill or my wrist!
I have a big, grunty 1/2 inch chuck drill with the nickname "the widow maker" as it has broken 1 apprentices and a customers wrists. This task was not for the faint hearted or limp wristers
I'm just about to adapt a safari 3 inch steel snorkel to fit my Terrano
Going to throw away the plastic fantastic (yeah right!) I have now.
As vinceparts posted, he used 2.5 inch cause that's what the intake size was. IMHO, go the next size up, because the longer the turbo has to suck through the same size it turns into a restriction. Think about breathing through a straw.

Cheers,

[u13turbo]

I cut my guard and the inner with a hole saw. As i use them daily, some skill was involved not to break the centre drill or my wrist!
I have a big, grunty 1/2 inch chuck drill with the nickname "the widow maker" as it has broken 1 apprentices and a customers wrists. This task was not for the faint hearted or limp wristers
I'm just about to adapt a safari 3 inch steel snorkel to fit my Terrano
Going to throw away the plastic fantastic (yeah right!) I have now.
As vinceparts posted, he used 2.5 inch cause that's what the intake size was. IMHO, go the next size up, because the longer the turbo has to suck through the same size it turns into a restriction. Think about breathing through a straw.

Cheers,

Haha yeah i thought a hole saw would be the idea, iv heard of storys about breaking wrists with them drills =/
If your gonna get rid of your snorkel could i get it off you for a nice price? Just for the mean time anyway, Until i can make a 3" one up? I have heard about making the snorkel bigger than the intake.

[kiwipete]

Im looking at making my own snorkel, i have a snorkel head so now i just need to buy the piping. Has anyone made one before? with measurements etc for it?

And i hear with steel snorkels you have to paint the inside of it to prevent moisture sitting in it?

Check out this post of mine, http://www.offroadexpress.co.nz/Forums/viewtopic.php?f=18&t=23250, I recently made a 3" mild steel one. Sourced from auto bend and slightly modified to suit my customising.
I blocked off both ends and poured a large cup of "Black Guard" in it, shook it around and emptied it. No rust issues now.

Shit that looks good! May i ask how much the pipe from auto bend cost? did you just tell them where you wanted the bends and they done it?

Thanks.
I think it was around $180.
It was factory bent for Terrano trucks, I just had to modify it to suit where the shitty plastic one was fitted.

[u13turbo]

Ohk sweet. Cheaper than those $400 ones on TM. And alot stronger i bet. Thanks for the info mate

[vinceparts]

As vinceparts posted, he used 2.5 inch cause that's what the intake size was. IMHO, go the next size up, because the longer the turbo has to suck through the same size it turns into a restriction. Think about breathing through a straw.

Cheers,

yea you are sorta right there, if i was to do it again id do it in 3 inch pipe , i also still need to put a proper snorkelhat on it, but hey for $55 minus the snorkel hat u cant complain and its saved my ass a few times now , cant say the same for my mates 2.8 dblcab lux,

any snorkels better than no snorkel,


as for cutting the hole i used a hole saw and as i wanted the snorkel to almost sit hard against the body lines i used a drill and file and made a pear type shape .

u13turbo......if your planning to make your own id try and guesstemate what kind of bends you need and drill the hole first and work back fom there, then that way u can make ur snorkel to fit the hole instead of making a pretty pipe up and drilling the hole in the wrong place,

this is what i did , but this may not be everyones way of doing it , its only an option

[lincooln]

any snorkels better than no snorkel,

I agree with you there.

[kiwipete]

Ohk sweet. Cheaper than those $400 ones on TM. And alot stronger i bet. Thanks for the info mate

Sure was cheaper, I sold the old plastic one for the same $
Before you cut your hole on the outside, if you want it snug like mine, make a cardboard template for the hole and trace this onto the guard, measure twice, cut once! As said it is an oval hole in this respect. I too used a jig saw with the finest toothed blade I could find.
Hole saw for the inner guard and use cutting compound, there can be 2 layers to cut through. Centre it from the outside first and then drill/saw cut from the inside.
I used some rubber beading to line the cut surfaces so the steel pipe doesn't wear/rub/vibrate on the holes and RTV'd the rubber to the steel.
A couple of stand-offs for the tube to be supported along the guard and one onto the A pillar. I kept the hat from my old snorkel, but they are only about $50 to buy.

[darinz]

The last one we did we welded a flange to the snorkel where it goes through the guard. This was then able to be bolted to the guard. Does three things, means the hole through the guard doesn't have to be perfect, is a really strong mounting point and the snorkel does rub in the hole.

Also definitely go bigger than the intake of throttle body as said above. A good way to think of it is your graden hose. Out of the tap there is heaps of flow, fit one hose and it reduces and another on and the flow drops to very little. Air is just a fluid so the same thing happens.

[rangimotors]

yea as above, im sure its obvious but for those that are new to hole saws the angle is important and because the gaurd sits at a different angle to the inner gaurd just mark it and take the gaurd off so you can do one at a time. Its also nice to clamp a bit bit of wood on the inside of the metal you are going through so the centre drill bit locates nicely and doesnt wobble around all over the show. Get some of the rubber trim that goes around holes (similar to the stuff that goes in winfdow channels or door rubbers) and primer the outside of the cut before you put the rubber on as no doubt it will be a little rough with a bit less paint.

I always buy 3 inch exhaust bends from atlas steel they were less than 15 each last time and they come with good lengths of straight attached so with 3 of them you would have enough to make the full thing.

Take pic's

[u13turbo]

Sweet thanks for all this advice! I will try get onto it soon. Might make it from the $15 bends as that will be the cheapest.

Cheers

[rangimotors]

im pretty sure you will do it with 2 bends but i bought 3 so i could use the bits of straight because i was 2 jew to buy a full 6m length of straight pipe when i only needed half a metre or less

This is the first one i ever made a few years back, it was the first thing i ever welded and was a bit of a rush job. It did the job but the last ones have been a bit tider. Nice easy and cheap. ps. I know it wasn't a terrano but you get the idea..



That truck was a very very budget ruff job so I didnt care but you can get nice snorkel hats and paint them up and they look great.

[u13turbo]

Yeah that looks allgood. So where is this shop in chch to get the bends? Got a mate selling me snorkel head for $30 so thats sorted!

Im actually looking for a manual terrano, and trying to sell my auto one. But i can use my auto one to get the shape etc sorted.

[rangimotors]

plenty of people say autobend but i found unless you were a trade customer with an account they had no interest dealing with small customers. Atlas steel is out wigram, google the addy if u cant find it let me know ad the bends were good and cheap. what size top hat do ya have? most i found were smaller than 3 inch so went to the truck supplies place to get a 3 inch one.

[kiwipete]

plenty of people say autobend but i found unless you were a trade customer with an account they had no interest dealing with small customers. Atlas steel is out wigram, google the addy if u cant find it let me know ad the bends were good and cheap. what size top hat do ya have? most i found were smaller than 3 inch so went to the truck supplies place to get a 3 inch one.

Autobend deal to the public just fine, no probs when I went there at all.

[suzukisport]

Here a pipe that I brought off our local exhaust shop. Cost $110 from memory which it is 3" mandrel bent, but they come in different sizes as well. It was great because all the pipe was there we needed and all the bends.
I know its not a Terrano but just giving you a few ideas, and hope it mabey helps you out.

[u13turbo]

Gonna try get to atlas steel tomorrow for some bends! Also I got my 31muds and 15" white spoke wheels, Made a huge difference in the mud so far! and have made the truck look a whole lot better! especially covered in mud. Also got my bullbars on last night. Will get some pics up over weekend.

[u13turbo]

So i have finally decided that im going to get one of the prebent snorkels from autobend. Just wondering, do they come with and fittings? or mounts? or just the pipe and thats it?

[KIWI_TERRANO]

Mine was made in chch by uniweld, its my old terrano was 3inch until behind gaurd and went to 2 and 3/4 inch then to 2.5inch

trying to up load pictures

still havent got this uploading photos thing so heres a link to my photobucket hope it work


http://s1234.photobucket.com/albums/ff405/KZSURF/

[kiwipete]

So i have finally decided that im going to get one of the prebent snorkels from autobend. Just wondering, do they come with and fittings? or mounts? or just the pipe and thats it?

Check out my post when I did my snorkle, the Autobend is just the bent pipe, nothing else. I think I have some of the flexi hose left over if you need some for the airbox.
Feel free to come and have a look at mine first if you like.

[u13turbo]

Mine was made in chch by uniweld, its my old terrano was 3inch until behind gaurd and went to 2 and 3/4 inch then to 2.5inch

trying to up load pictures

still havent got this uploading photos thing so heres a link to my photobucket hope it work


http://s1234.photobucket.com/albums/ff405/KZSURF/

Did you sell that terrano to some guy in rangiora like 2 years ago? did it have 32" BFG muds? i think i know it Snorkel looks allgood, how much it set you back?

[u13turbo]

So i have finally decided that im going to get one of the prebent snorkels from autobend. Just wondering, do they come with and fittings? or mounts? or just the pipe and thats it?

Check out my post when I did my snorkle, the Autobend is just the bent pipe, nothing else. I think I have some of the flexi hose left over if you need some for the airbox.
Feel free to come and have a look at mine first if you like.

Where in Chch do you live mate? I dont think i'll beable to make it out to yours before friday, But I will take a look at your pics of how you mounted it, and for my diff breathers, could i just plumb them into the intake somewhere?

[KIWI_TERRANO]

Mine was made in chch by uniweld, its my old terrano was 3inch until behind gaurd and went to 2 and 3/4 inch then to 2.5inch

trying to up load pictures

still havent got this uploading photos thing so heres a link to my photobucket hope it work


http://s1234.photobucket.com/albums/ff405/KZSURF/

Did you sell that terrano to some guy in rangiora like 2 years ago? did it have 32" BFG muds? i think i know it Snorkel looks allgood, how much it set you back?

Yer sure did, he tried jewing me cause i sold it as is and a month after he tried getting his money back cause it failed a warrent.
It now in templeton. Them 32 bfg were the best tyres ive ever had im f off they dont make them anymore.

There was a lot of mucking round involed but 75 for hat and then 200 for pipe i think and 12 for a joiner.

[u13turbo]

Mine was made in chch by uniweld, its my old terrano was 3inch until behind gaurd and went to 2 and 3/4 inch then to 2.5inch

trying to up load pictures

still havent got this uploading photos thing so heres a link to my photobucket hope it work


http://s1234.photobucket.com/albums/ff405/KZSURF/

Did you sell that terrano to some guy in rangiora like 2 years ago? did it have 32" BFG muds? i think i know it Snorkel looks allgood, how much it set you back?

Yer sure did, he tried jewing me cause i sold it as is and a month after he tried getting his money back cause it failed a warrent.
It now in templeton. Them 32 bfg were the best tyres ive ever had im f off they dont make them anymore.

There was a lot of mucking round involed but 75 for hat and then 200 for pipe i think and 12 for a joiner.

Haha, yeah i use to be mates with him, I drove your old terrano a couple of times, hes a #### now though, tried accusing me of doing a skid on his driveway lol....

Oh yeah ok, so same sorta price as autobend. Got a mate selling me a snorkel head for $30 so thats allgood

[kbushnz]

If you are Akl based the cheapest supplier of exhaust tube and bends are Segedin Truck and Auto Parts Ltd
53 Andrew Baxter Drive.
They have several different sizes including 3 inch.
Almost half the price from Auto bend or Chase.
Give them a ring first as the stock moves pretty fast.

Calvin

[u13turbo]

If you are Akl based the cheapest supplier of exhaust tube and bends are Segedin Truck and Auto Parts Ltd
53 Andrew Baxter Drive.
They have several different sizes including 3 inch.
Almost half the price from Auto bend or Chase.
Give them a ring first as the stock moves pretty fast.

Calvin

In Chch unfortunatly... cheers for the advice though.