okay so we created the kind of two to one merge on the boost pipes for sam skyline last time
and now it's a case of transitioning that into um one three inch round now this is
what this is kind of the trickiest bit of this uh whole project on that whole project
but the the boost pipe part of the project um because we use two inch tube that's the perfect
size for the outlet diameter of the turbos and you want to kind of keep that that size
really unless you're running huge horsepower two inch tube through two turbos is fine
and then obviously we're going to transition that out but what it does mean is that we have
to manipulate the three-inch tube down quite a lot and as you can see when you start to
kind of squash it it starts to go a bit of a funny shape and you don't really like it
so as you can see i've marked a cross put piece of tape on first and then just marked across
roughly where that two into one will go when this piece of tube is squashed down to what is
basically two inch but of course i've still got areas where the fit up isn't that great
and we can't weld that so at this point it's going to be a case of getting it cut off to roughly what
i think is the right length and then more or less a manual process of just kind of cutting tacking
you know and then kind of kind of hammer in to shape the tube really but obviously we
also don't want to mark the outside of the tube too much we want to keep it looking nice luckily
because this titanium is thin it is quite soft in that we can actually bend it by hand almost
so i'm hopeful that once we've got this cut off we'll be able to tack it on in a few places and
it won't need too much kind of hammer work it'll it will kind of nicely form to the shape we need
but yeah first job's just going to be getting that cut off on the bandsaw
got that cut down on the bandsaw and it's actually come out pretty nice to be honest
um we're actually not that far away i don't think we'll need to trim much more off it
um obviously it looks better on one side than it does on the other and that's because
there's still a bit of manipulation to do like if you look inside um obviously it's kind of still
quite far out in the middle um what i'm hoping is we'll kind of cut it to slightly oversized we'll
tack it at the outside and then we'll be able to just squash those middles in once the outside's
attacked and then that'll stop the outsides pushing apart and making it wider so really
yeah it's just a case of getting this cleaned up now trying to get as flat as i can on the lineager
um yeah and then you know starting to tack it up and try and manipulate it into shape really
i've got these bits nicely sanded flat now
and so they come together as you can see there's still obviously a big gap on the outside
but on the inside i can get them to line up pretty much perfectly so what i'm going to do now is kind
of set it up on the bench like that and then put a good two or three tacks around the outside
and then i'm going to try and slowly kind of manipulate it so that it fits into the
middle but i'm going to try as much as i can to do this with a purge running because really you
always want to attack titanium um whilst it's being purged and obviously that's going to get
a bit tricky because there's some pretty big holes in here but we'll give it a go
right so i've got that welded up now i'm pretty happy with how that's come out
actually it's quite a tricky transition to do um you know obviously i've got to
really manipulate the tube down in there to kind of get that nice shape
but it's worked out really well inside you probably can't see that well we've got a
little bit of sanding work to do in there but you know it's all purged out nicely and yeah got no
like big chunks of filler rod hanging through which is which is good so now we can refit this
and start to look at how we're going to take the bends off here to go through to the intercooler
so that's going to sit something like that just like it was before and now it's going to be a case
of from the underneath just looking at what bends we need to get through to the intercooler playing
around with a load more pie cuts and masking tape i mean i've already been having a quick look
um before i'd welded that on but yeah we just now need to kind of get up towards the intercooler
right so this is what we've come up with i've got this all taped together now
the problem with these really small pie cuts when they're on a like a nine degree pie and
you put lots of them together as you do tend to gain quite a bit of movement in the tape
so although i've got it taped together as tight as i can it kinda has to be taken with a bit of
a pinch of salt um in terms of you might want to check this once you've tacked it together
so we will do and then we've also got a bead rolled a piece to go on the end there
which will be the intercooler end here so that fits up there i've marked it nicely
i know where it's gonna go so what i'll do now is i'll just start tacking all this together
once i've tacked it all together i'll obviously recheck it on the car um check it lines up with
my uh sharpie mark against the the y-pipe piece and then uh yeah fully weld it up
at that point we can start thinking about polishing it and uh hitting it with some propane
so we've got all this tacked together well kind of loose i've only got like one set
of tacks on it we'll put a lot more tax on this before we weld it um but yeah we can try up now
and it's a little bit long um but i know i need to trim a bit more off of the
the piece we welded onto the turbo last time um i kind of was holding off doing that
before you know until i confirmed i definitely was gonna need to do it
but yeah i think if i trim another maybe five or six millimeters off there
by the time we've got that welded on there that's going to be absolutely perfect
and the only other thing i need to check once we've got this welded together i'm pretty sure
because i did tape it and try it is that you can actually get it out the hole so we'll need to take
this off um tack it onto here once it's all welded together and then actually try and snake it out
the hole i think it does just fit but of course at the minute we've got no headlight in here um
yeah there's a few things missing from the engine bay that might be here when it's fully assembled
um and i think it would be beneficial if you could get the boost pipe out
uh we don't want it just obviously you don't have to install the boost pipe first
um but yeah we'll figure that out after so now it's just the case of getting this welded up
right so she's all welded up now what we need to do is just double check that
our lines line up with where we want them to be and it does
that's going to become that's going to be just down there like that
so now we want to tack this on here take this off tack it on and just double check
i'll probably tape it first actually just double check we can get it out of the hole
um before we go ahead and weld it all up and then not be able to get it back in
right so as i feared or maybe suspected don't know um it doesn't fit i can't get it in the hole and
round and lined up with both the intercoolers and then by the time we've got like head light
and um power steering tank and stuff like that here there's no way it's going to go in so what
we're going to have to do is we're going to have to put a join in here so we're going to
have to cut this we just put it in the bandsaw and cut it bead roll both ends um and then we'll
end up joining it with a silicone coupler we'll also get it all polished up and uh propane it
so it matches the intake pipes as well um so yeah cover that in the next episode thanks for watching