top mount ET manifold progress

CNHSS1 · #1 01-12-2006, 12:50

as mentioned, they were £45 each before from the place we used (i have the companies details somewhere). I suspect Sideways Danny is using somewhere else if they need them done in 10s. if it doesnt work out, give me a shout

be worth having them plasma cut tho, as its really accurate and needs little tidying. Flame cuts not much cheaper but you have to bugger about with the file.

sideways danny · #2 01-12-2006, 16:32

the ones I will get are going to be CNC milled or laser cut (got 2 places I'm going to try I want to get them down to £30. I might do it different and have them as 2 pieces so I can just get 20 of one smaller type rather than a single piece flange. I need some confirmed interest though

PukkaSilvia · #3 01-12-2006, 18:47

Sounds and looks pretty good to me. You need one adz. lol and an external wastegate

adzs12 · #4 02-12-2006, 03:09

If i spend anymore right now il be bankrupt

But its definately something il be doing in the future

CNHSS1 · #5 29-12-2006, 13:24

ok bit more progress......
ive finished the majority of the welding and fabrication now, just needs all internal welds tidying up with die grinder but my compressor is crap so gonna have to borrow another to finish the job. Once thats done, i will set about making a 'cradle' brace from the rocker cover and spare head casting bolt holes to suspend the assembly with a couple of rosejoints. Its essentially to allow movement with the heat expansion, but help to stop it cracking. Google for Bailey cosworth turbo mount and it'll make more sense. Should stop the stainless cracking as easily. I intend to wrap the manifold in exh wrap, from the manifold to the tailpipe pretty well. i know many people arent fans of the stuff, but i like it and it keeps the heat energy in the manifold and outta the engine bay (and cockpit as exhaust runs inside the car with false floor and out the passenger door!) which on a little fibreglass car isnt funny

heres some more pics

PukkaSilvia · #6 29-12-2006, 13:35

You may get problems in welds cracking if you didnt use stainless steel migwire as the two different materials could expand at different rates when hot. (I speak from experience on mine) I did a rush job welding up a split on my stianless top mount manifold with normal migwire and its split again

. I will be stainless tig welding beofre i fit the t34.

But your welds look pretty heavy duty so fingers crossed. The rose joint idea sounds good, Maybe i will try that myself as we have a lot of them lying around at my work.

the fannymolds coming along well, has the external wastegate flange arrived yet? What Turbo are you going to be using?

CNHSS1 · #7 29-12-2006, 14:06

it is stainless MIG wire, but to be honest i do expect it to crack eventually, its par for the course as they say. Luckily the car is only used on track so doesnt do high mileage.
Heavy duty welds? more like amatuer LOL. Im not an expert, but hopefully will be ok.
Im gonna use my current turbo which is a T28 hybrid (cut back and 360deg etc) that Turbo Technics built for me 2 years ago. Low lag spec and with a T25 exh bolt pattern. running 16psi at 250brake at the mo, itll be intersting to see if the manifold gives any more power or torque (like the CA20 inlet manifold did).
Flange hasnt arrived yet, did you send it to my work? if so we arent officially back yet, so postie doesnt deliver.
Not sure if im gonna use it yet, may run it with std actuator first, then change to an external wastegate later, so i can actually see what differnce it makes.