What Cast Manifold Options Are Available?

[silman]

For the RB25DET, what cast manifolds are available on the market?

I've seen that there are HKS T4 low mount manifolds, but i want to know if there are any top mount cast manifolds.

I'd like to use a GT30/40 turbo, so preferably a T3 style flange.

Thankyou.

[paulr33]

gcg in sydney should be happy to help you out for a cast manifold and your flange / mount type

[silman]

I checked out there site, but could only see a stainless top mount manifold. have you come across a cast one before?

[Bullant47]

I checked out there site, but could only see a stainless top mount manifold.  have you come across a cast one before?

<{POST_SNAPBACK}>

silman, why are you set on cast manifolds. I know a guy in Qld that makes excellent manifolds out of steam pipe.

[silman]

I'm sorry, but no steam pipe manifold is going to hold together like a cast iron manifold will. This is precisely why manifolds are cast from factory. I've also had experience with a cast iron turbonetics manifold on my other car. I had a look through an old apex product guide here, and have seen a cast manifold, but as it's all in Japanese, and it was a kit layout picture, i'm not able to see if it's a top mount. can anyone confirm?

At the very least, if i have to go for a non cast manifold, it will be a Japanese one, not a local one. All you have to do is look through all of the history of threads on this site to see the amount of problems they cause. Been there, done that.