Ok, I just got my exhaust manifold from the machine shop. I had to resurface it b/c it got warped. I don't know if you notice but before I posted complaints about the HRC studs getting lose, now i have the 4G63 studs. But it still leaked! Then I bought a copper gasket, but then I found out the manifold got warped so I resurfaced it. When I took it to the machine shop, they said that I might have the said problem again. Why?! Is the HRC manifold that CHEAP?! Someone tell me some experiences you had with your HRC manifold. And if they car cheap, is there a manifold that is way better? Thanks.
#52393, "RE: OK! more goddamn problems *MANIFOLD*" In response to Reply # 0
I just drove my car for over a week with only 4 bolts holding the manifold on instead of the full 8 because 2 had broken off and 2 rattled out. I took the manifold off this weekend to remove the broken bolts and replace them all with 4g63 studs and my HRC manifold was fine. Not warped or anything.
You are not your job. You're not how much money you have in the bank. You're not the car you drive. You're not the contents of your wallet. You're not your fu**ing post count.
#52418, "RE: OK! more goddamn problems *MANIFOLD*" In response to Reply # 0
The problem with stainless manifolds is that they will crack from expanding and contracting from heating up and cooling down over time. When the welds crack, they need to be re-welded, and when you re-weld the manifold, it warps. A good weld shop will make a jig to bolt the manifold to while welding it. This will help to ensure that it doesnt warp from the insane heat created. It's not that the HRC manifold is cheap, it's just high maintenance. I would have thought that a cast manifold would be better, but I have heard otherwise from some of the STAR kit owners.
Matt 1995 Eclipse GS 2.0L, S16g Turbo, 8 Injectors, 26psi
1998 Eclipse GSX 2.3L Stroker, AEM EMS Converted to Speed Density, FP3065 Turbo, 35psi , and so on...
#52425, "RE: OK! more goddamn problems *MANIFOLD*" In response to Reply # 2
Actually mine has been fine, up untill now, even with out the flex section. I just found my exhaust leak, a broken bolt on the top right most bolt ( looking at the block from the front.
Member # 751
FOUNDER of the Central Cali chapter of 2GNT! (I got kicked out after I refused to go Cow tiping) - Hehehe you know who this is for
#52429, "RE: OK! more goddamn problems *MANIFOLD*" In response to Reply # 4
I've had the same issues as the rest of you. At least, it's usually only the welding that ever cracks.
As far as the material, I think it depends on what day of the week it is. For example, while Ryan and I have the same manifold in terms of their appearance and color, my manifold is definitely stainless steel. It has no magnetic properties at all. Ryan's on the other hand is totally magnetic, and is most likely iron.
_____________________________________ Jason ESi-T
04' BMW 325Ci 91' Nissan 240SX 98' Eagle Talon ESi (sold)
#52447, "RE: OK! more goddamn problems *MANIFOLD*" In response to Reply # 6
Perhaps it is the age of my manifold and an old design. Maybe I am just smoking crack and do not even know what I have. It has happened before. I have one of the original kit designs they released in 99.
#52469, "RE: OK! more goddamn problems *MANIFOLD*" In response to Reply # 7
I don't know, Chris.
I know you had to have one of the first kits that came out, and if you have iron, (and it certainly wouldn't suprise me) that makes it all the more mysterious. Because, I know Matt and I had ours before Ryan. And Ryan having a kit made about a year or so ago, has one probably made of iron, or some other magnetic material.
_____________________________________ Jason ESi-T
04' BMW 325Ci 91' Nissan 240SX 98' Eagle Talon ESi (sold)
#52528, "RE: OK! more goddamn problems *MANIFOLD*" In response to Reply # 9
With the manifold leaking onto the head, have you guys notice a harder time boosting? I'm not trying to boost a full 5psi while I'm breaking the motor in. I do want a little boost now and agian just to help seat the rings.
sorry If i'm stealing your thread but I think this can sorta relate to your topic
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