How do identify 90+ turbo manifold

deleted_user_160

How do we identify it guys? Tips tricks etc?
No or engine/ car attached to aid in identifying

Vee_Que

I will update when I get home

calvintibia001

There you go
http://people.physics.anu.edu.au/~amh110/8V_Folder/turbo_exhaust_manifold.htm

calvintibia001

The easiest way to tell is, if the "tubes" to the T3 Flange is round instead or square, it's a 90+, easiest will be take a picture and upload to here.

I recently got my 90+ Turbo Manifold machined to accept a Skyline T3 Turbo.

deleted_user_160

Awesome cheers!
I've got a 90+ sitting here, but looking at one floating on eBay. Sadly early style. Wanted to make sure they were the same.

calvintibia001

Why do you need a new one lol ?

Vee_Que

calvintibia001;21676 wroteThe easiest way to tell is, if the "tubes" to the T3 Flange is round instead or square, it's a 90+, easiest will be take a picture and upload to here.

I recently got my 90+ Turbo Manifold machined to accept a Skyline T3 Turbo.

That looks good. Just needs to be ported around the hole.

deleted_user_160

Na, they are quite dificult to come by. And apparently fracture easily. So always good to have one on standby.

Ex850R

Where do they fracture?
Is it a product of not having enough support for the turbo weight?
Welding can be done by a competent shop but will crack again for sure so supporting it better is the go.
Or fabricate a nice stainless one !!??

deleted_user_160

I don't have fractures. I'm not using it yet. Gotta get it ported and ceramic coated first. Then work out if I want the t3 flange.

Given they are the more prized item. Getting hold of one is just that bit harder, so if one does pop up ill get on it. However it's not a 90+ so won't be getting it. + the turbo attached to it is factory spec. So no use for me

Fabricating a nice knotted mess of sexy stainless tubes would be the ideal option. Just a matter of twisting my brothers arm to weld it up

nickm

blondejay;21697 wroteNa, they are quite dificult to come by. And apparently fracture easily. So always good to have one on standby.

Also pre 90 bolt through the back and have no studs.

If you get on the UK volvo site you can find then easily. Postage is a bit of blow but not as bad as the US.
Trouble is a Volvo TD05 housing will not fit without modification.

deleted_user_160

That's all good. I won't be using the td05. It's too small for the gains I'm chasing

calvintibia001

Well, is a TD05 is too small, i think a aftermarket header is needed for the flow

deleted_user_160

Yes definatly. That's why I haven't done anything with my 90+ just yet. Ie: machine face to accept t3 flange. I'll hastily my brother!

Their is always the option of sourcing a twin scroll tuebine. And just run a j-pipe. Off a factory n/a header.

Vee_Que

Just seeing people making more power than you want with a ported 90+ manifold says that you don't need a header.

They crack at the centre of the merge of the pipes due to the small hole going into the turbo. Which is why you port the centre hole out. It reduces the heat greatly. The 16t and 90+ I have, was on my old 740t not ported and it would glow red very easily compared to what it does now since I ported it all out.

deleted_user_160

We will talk more on Saturday. But there is an a/r .70 I'm looking into

Philia_Bear

calvintibia001;21676 wrote
I recently got my 90+ Turbo Manifold machined to accept a Skyline T3 Turbo.

Its going to leak like a sieve unless you take it back and get it done right
Hint... you have to machine it down below the recessed ring level

Philia_Bear

90+'s are easy as **** to come by
I think I have 9 of them at the moment
with 3+ of them pre-ported to tentacle standards

Vee_Que

calvintibia001

Philia_Bear;21735 wrote
calvintibia001;21676 wrote
I recently got my 90+ Turbo Manifold machined to accept a Skyline T3 Turbo.

Its going to leak like a sieve unless you take it back and get it done right
Hint... you have to machine it down below the recessed ring level

The whole flange is flat now, is that not enough ?