DIY manifold
#401
It was nice to not have to mess around ordering the parts individually. Although I did select the wrong inlet flange. I ended up taking 2 thousandths off of one side and 6 thousandths off of the mating surface. I know it wouldnt have made a difference, but its been a slow couple of weeks at work. lol
#402
Can I just say this thread was inspiration to actually commit to a turbo build. That picture of everything on the motor sold me. Well done sir your work is gorgeous.
I am going to build a manifold for my car, it will be a 99 or VTT motor on a 99 car w AC and PS.
I am wondering if anyone has built a forward top mounted EFR turbo maninifold? I'd like to tilt the turbo a little to point the exhaust down about 10-15 degrees to make it easier to route the 3"down pipe since the EFR turbo is pretty long.
Another question is if this heavy turbo should have a secondary mounting point to help it from stressing and cracking the manifold?
Here are some pics of the manifold I built for a 1.6 this summer
Thanks for he advise. Harold
I am wondering if anyone has built a forward top mounted EFR turbo maninifold? I'd like to tilt the turbo a little to point the exhaust down about 10-15 degrees to make it easier to route the 3"down pipe since the EFR turbo is pretty long.
Another question is if this heavy turbo should have a secondary mounting point to help it from stressing and cracking the manifold?
Here are some pics of the manifold I built for a 1.6 this summer
Thanks for he advise. Harold
#404
I am currently working on gathering all the parts. But I have a v3 megasquirt, id injectors, walboro fuel pump, ls2 coils, wideband o2, boost gauge, intercooler core and a bloush 16g turbo from one of my subarus with a welded wastegate with a tial 38mm wastegate.
Just got done mounting BRZ seats in my 1996 so now I can start on the fun things.
Just got done mounting BRZ seats in my 1996 so now I can start on the fun things.
#406
Quick question about material choice. Never made a manifold before, but keen to have a go. Car is a '95 1.8, and I plan to use the good 'ol GT2560R.
I have purchased a PRL motorsports head flange which is a very nice piece... Basically like any of the premium flanges out there. (Mazda Miata 1.8L Exhaust Head Flange). It's made from 1018 mild steel. I also have some stainless weld els, so am i better off forking some extra cash for a stainless flange? Or just going with the mild and welding the stainless els to it using 309L filler? Or get some mild els and go with that?
Given that this will be my first manifold, should I Keep It Simple Stupid, and worry about fancy stainless colouring on version 2? I live in a dry climate, so rust isn't much of an issue, but I'd like a nice finish for the aesthetics.
Thanks.
I have purchased a PRL motorsports head flange which is a very nice piece... Basically like any of the premium flanges out there. (Mazda Miata 1.8L Exhaust Head Flange). It's made from 1018 mild steel. I also have some stainless weld els, so am i better off forking some extra cash for a stainless flange? Or just going with the mild and welding the stainless els to it using 309L filler? Or get some mild els and go with that?
Given that this will be my first manifold, should I Keep It Simple Stupid, and worry about fancy stainless colouring on version 2? I live in a dry climate, so rust isn't much of an issue, but I'd like a nice finish for the aesthetics.
Thanks.
#407
mkturbo.com
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Don't worry about a SS flange. You will spend 4-5 times the cost to get one that is the same quality as the PRL flange. Get the T2 log flange from PRL also. It will make your life much easier. If you search the classifieds you can find a somewhat recent FS add I had for a t2 log and just copy that manifold. It is AC/PS compatible.
#408
Thanks mate. I wish I'd noticed the turbo flange when I made the order... Shipping these things to Australia certainly adds to the cost! I will be ordering it for this build though.
No AC/PS to worry about, so that helps. Already planning to copy a log style for version 1. In my head I'm thinking of a tube style for version 2 (after much practice) with a turbo size upgrade after some supporting chassis/driveline mods. This forum is invaluable!!
No AC/PS to worry about, so that helps. Already planning to copy a log style for version 1. In my head I'm thinking of a tube style for version 2 (after much practice) with a turbo size upgrade after some supporting chassis/driveline mods. This forum is invaluable!!
#412
Stainless works fine and looks pretty but the coefficient of thermal expansion and malleability* of mild steel are actually preferable for a turbo manifold. It's fine to weld one to the other with stainless rod/wire. Stainless technically conducts heat less well which could be seen as an advantage and may be more prone to cracking but either will work fine if welded properly. The transition looks a bit abrupt on those machined flanges compared to squishing the tubing in a vice for example but the ease of fitment is nice.
* fancy words were used.
* fancy words were used.
#414
SADFab Destructive Testing Engineer
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Join Date: Apr 2014
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He stated he has 309 filler, which will work just fine for joining stainless and mild steel. I have 2 years on a stainless manifold welded to a mild steel flange with 309. No issues.
#416
Stainless works fine and looks pretty but the coefficient of thermal expansion and malleability* of mild steel are actually preferable for a turbo manifold. It's fine to weld one to the other with stainless rod/wire. Stainless technically conducts heat less well which could be seen as an advantage and may be more prone to cracking but either will work fine if welded properly. The transition looks a bit abrupt on those machined flanges compared to squishing the tubing in a vice for example but the ease of fitment is nice.
* fancy words were used.
* fancy words were used.