998 turbo idea does bulkhead need to be altered,
Turbo Mini Forums

ok i'm planning a 998 turbo engine i have a few good blocks and head to play with.

i've been reading about and i keep finding different answers, would i need to make bulkhead alterations.

ive see some with the changes some with out.

i really don;t want to cut my mini up as it completely restored and don;t want too.

planning using a standard metro manifold. if that helps.

if there is a manifold i can buy to not cut the bulk head please say.

thanks very much for any help.

i'm new to this forum.

You'll need to use the Mirage Motorsport manifolds, or one of Mattys on here, if you want to avoid cutting the bulkhead. Any conversion using the Metro manifold will require bulkhead work.

WWW.TURBO-MINI.COM

can't find a price for the mirage ones but mattys one are 300 looking expensive just to save on a box

mirage i think are 350

Done now needs redoing lol

Yep, as said, you need a specialist manifold to clear the bulkhead.

To be honest, £350 is a reasonable price for what is a hand-made bespoke item.

There is a third option. and that is to put the turbo over the clutch. This can be achieved by making a 'J' pipe from the Metro manifold. I've thought about this many times, but always forked out for a bespoke manifold.

Better to save your pennies and do it properly than cut the shell IMO.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

www.twin-turbo.co.uk

You can just make your own if you want. Paul s has lots of flanges on the shelf, then just a couple of bends and some welding, bobs your knob.

http://www.twin-turbo.co.uk
http://www.hillclimbandsprint.co.uk/default.asp

A man without a project is like a like a woman without a shopping list.

Twin J pipe from a SPi exhaust is my plan.

You can get some SPi downpipes with the flex fooked for next to nothing.

After that, if you can weld / have a welder and are ready to build it yourself, you can save some£££ here but the downpipe and engine steady are an other story I have not been investigating yet ...

Rusty by nature

i have all the stuff to make on except a pipe bender.
i like that idea. has any one got a link on one that has been made.

i've all ready made one top adjustable engine steady and bought a ultimate engine steady.
so that will help.
i guess with the spi one your cutting of the current connecto and welding on a turbo flange.

You don't need a pipe bender, just buy the bends. You can get the correct wall thcknes that way.

http://www.twin-turbo.co.uk
http://www.hillclimbandsprint.co.uk/default.asp

A man without a project is like a like a woman without a shopping list.

so i would need one of these
http://www.ebay.co.uk/itm/T2-TURBO-FLANGE-...9#ht_500wt_1183
and one of these http://www.ebay.co.uk/itm/CLASSIC-MINI-MAY...5#ht_500wt_1415
to make my own manifold and this would fit without touching the bulkhead. i guessing i could only fit a t2 due to the size and lack of room

Edited by booton on 6th Feb, 2012.

You need this sort of thing, but smaller and cheaper
http://www.ebay.co.uk/itm/4-Sch10s-90-LR-E...=item1c230fb57a

http://www.twin-turbo.co.uk
http://www.hillclimbandsprint.co.uk/default.asp

A man without a project is like a like a woman without a shopping list.

i like the idea of making my own.
made a nice weber manifold not to long ago and there is some really nice examples on here i'm going to use as a good example. cant say copy lol. (being reading through alot lol)
found these
http://www.demon-tweeks.co.uk/Search.do?me...ht+Exhaust+Bend
they the smallest i can find.

I use these:

http://www.allstainlessltd.co.uk/products....bfitt_elbow.gif

The 1" is plenty big enough.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

wow that not bad at all.
and stainless.

lot cheaper than i could find.

what size would u recomend 1"1/2 3/4 or 2"

i think 1" 1/2 as it for a 998

The nominal size of 1" is 28mm bore.

I'm getting 120hp without issues from my 998 turbo using 1".

Bigger is not better.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

As Paul says. 1" for the fannymould, but from the turbo outlet and the rest of the exhaust go for 2".

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

www.twin-turbo.co.uk

no problem thanks very much will order some bits tonight and have a play.

going to have alook round now for a list of cars fitted with a t2 turbo as i have three scrap yards in my small town so should be able to find one hopefuly.

http://www.ebay.co.uk/itm/T2-T25-T28-GT28-...3#ht_755wt_1398

the stainless steel one i keep finding have two extra bolts on the top is there any benfit for this.

There are a few other options than a T2. Look at the GT1548 which is a mor emodern version.

Also the IHI RHF3 and RHF4 are a nice size. If you are making your own manifold, why limit your self to an old T2?

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

www.twin-turbo.co.uk

best choice of turbo
http://www.ebay.co.uk/itm/Garrett-GT15-Tur...d#ht_500wt_1415
http://www.ebay.co.uk/itm/270889490829?ssP...9#ht_595wt_1165
http://www.ebay.co.uk/itm/140697945456?ssP...9#ht_500wt_1415
http://www.ebay.co.uk/itm/Peugeot-406-MK2-...c#ht_645wt_1165

i believe from some research all these are t2

They're all GT15 as far as I can tell. Which is good.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

www.twin-turbo.co.uk

good good. i want one that will spoll up quick
not a t3.