Greddy manifolds CRACK
12-24-2006, 08:10 AM
#3
what do you mean "as far as reliability"?
I went to talk to Geo @ Titan when my manifold cracked and he was surprised it cracked at only 8k mi. He said they don't usually crack until 60k mi or so. So abviously its not strange that they crack.
I got a local shop that can fabricate them but I'm sure it will come with a heafty price.
I went to talk to Geo @ Titan when my manifold cracked and he was surprised it cracked at only 8k mi. He said they don't usually crack until 60k mi or so. So abviously its not strange that they crack.
I got a local shop that can fabricate them but I'm sure it will come with a heafty price.
12-24-2006, 09:08 AM
#4
Originally Posted by tecni
what do you mean "as far as reliability"?
I went to talk to Geo @ Titan when my manifold cracked and he was surprised it cracked at only 8k mi. He said they don't usually crack until 60k mi or so. So abviously its not strange that they crack.
I got a local shop that can fabricate them but I'm sure it will come with a heafty price.
I went to talk to Geo @ Titan when my manifold cracked and he was surprised it cracked at only 8k mi. He said they don't usually crack until 60k mi or so. So abviously its not strange that they crack.
I got a local shop that can fabricate them but I'm sure it will come with a heafty price.
Cast handles the heat cycles much better than any tubular manifold will. SS tubular are much more prone to cracking than a cast manifold is.
12-25-2006, 11:08 AM
#7
Originally Posted by Zivman
Just don't think for a second, you are gaining any more "reliability" by going with a tubular setup.
Unfortunately, very few shops are any good at this. And quality fabrication and welding is expensive....as are the materials.
Which brings us right back to cast manifolds.
Unless I was building a custom turbo setup, I would stick to the out-of-the-box casting. You probably just got a bad batch, or maybe the studs were trqed a little funny.
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12-25-2006, 10:02 PM
#12
you could find the tubing itself easily. but finding someone with the correct dies for a mandrel bender (and willing to do only a few bends) will be the tough part. inconel would be crazy expensive, and even tougher to find someone capable of welding it correctly.
the trick is making zero-gap fitments so you are welding the material together and adding filler, rather than using just filler to span the gap. then brace the turbo or manifold back to the block. back-gassing is good also, but you would spend crazy money to have someone do that on every weld on custom manifolds.
good luck which ever way ya go.
the trick is making zero-gap fitments so you are welding the material together and adding filler, rather than using just filler to span the gap. then brace the turbo or manifold back to the block. back-gassing is good also, but you would spend crazy money to have someone do that on every weld on custom manifolds.
good luck which ever way ya go.
01-20-2007, 02:12 PM
#14
the other place to look for exotic piping is www.burnsstainless.com while, in their website, take a look at their merge collectors! 
That is what a collector is supposed to look like!!!
That is what a collector is supposed to look like!!!
01-23-2007, 12:26 AM
#16
I checked all three sites you guys suggested. However, all of them seem to just facricate joints and such. I wish someone would just sell the manifold.
My car has been mysteriously overheating over the past few days and after checking the sparkplugs, I found that I have a tiny bit of coolant seeping into the cylinders so I'll be retorquing the heads tomorrow. If this doesn't fix the problem, I will have to replace the headgaskets and I'll possibly find both manifolds cracked due to hyper cooling from the coolant intursion. If this is the case, I'll probably have the shop fabricate new tubular manifolds. We'll see how it goes.
My car has been mysteriously overheating over the past few days and after checking the sparkplugs, I found that I have a tiny bit of coolant seeping into the cylinders so I'll be retorquing the heads tomorrow. If this doesn't fix the problem, I will have to replace the headgaskets and I'll possibly find both manifolds cracked due to hyper cooling from the coolant intursion. If this is the case, I'll probably have the shop fabricate new tubular manifolds. We'll see how it goes.
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