Some small KA-T Qurestions (Manifold, Turbine housing and my turbo choice etc)

[TheUndergroundLegend]

(I did not find the info I was looking for when I searched)

I have a couple of simple questions concerning using a Rev-Hard manifold. I will go ahead and give you guys the basics of what I am planning to do. I will soon be buying a 89 240sx coupe that has been swapped to a 91 engine. This was my freinds car and has always been KA-T but has also been through ALOT of motors and is currently NA at the moment.

I have been trying to figure out how he keept melting the brake resovior with the turbo. He was using the rev hard manifold with a small T-3 and and a extrnal gate. The problem is that he has had the resovior catch on fire about 3 times, And he was running a turbo blanket for 1 of them. He had the same problem after changing to a custom tube manifold.

Here are the questions since I am planning on picking up the Rev-Hard manifold from him to use at a later date when I finish picking up the parts. I alreadey have the turbo I am panning on using and will list the specs hereITSGTS61gt-40 comp wheel, to4e housing, stg 5 inconnel whl, .63 t3 hosuing

Were the fires caused by not using a on center hosuing? I am not a big fan of the on center, And also when would a cast manifold hold me back from more power? The only reason I am leaning towards a cast manifold is becosue its gonna be a my only car. Also any comments on tthe Rev-hard will be helpfull.

[nissanfanatic]

I'm using the Revhard with a T04B on center. I have had no melting problems at all. I do have tin foil in there as a heat sheild. The Revhard seems to work pretty well for me. The only thing I didn't like was the runners kinda got in the way of the bottom studs.

[TheUndergroundLegend]

I guess his melting problem was becouse of using a of-center housing?

[C-Kwik]

The tangential T3 turbine would put the turbine closer to the brake master cylinder. If you chose to continue with the T3, then I would add a heatshield to the turbine and to the master cylinder. What part was catching on fire btw? When I had my T04 On-Center, I wraped the reservior with heat resistant material as well.

As far as the rev hard, it is a good cast manifold. The only real big issue is the expansion. It uses a single head mating flange. Cut it into 4 clanges and this should relieve stress when it is expanding. Perhaps drill out the holes for the head to exhaust mani studs to avoid sheering off the studs under extreme heat. You can also go as far as removing the cast flashings so those don't become a starting point for a stress crack. Lastly, the ports in the mani are circular while the ports from the KA head are squarish. if the previous owner has not done so already, you may want to match port the mani. Not hard with a drill or dremel tool.