Externally gated factory exhaust manifold, photos inside....

Discuss the RB20, RB25 and RB26 series engines.
240z4u
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Got this back from Jet-Hot today.







Stock RB25DET manifold with a stub/flange welded in for my tial wastegate.

Cost (because SOMEONE will ask).

Spare manifold - 50 shippedFlange - 10 bucksPipe - Free (found it at work)Labor for welding - 130 with a two day turnaround

Evan

I know its 6boost or full race, but I think its going to work fine for my situation.


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Cameron
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nice hope you dont have any clearance issues with that wastegate..

240z4u
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Me too, I know of another guy who did the exact same thing. Should be plenty of room according to my tape measure. *fingers crossed* lol

Evan

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Cameron
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wait is the Wastegate going to be aiming down? i re looked at it and cant tell which way it will mount, im brain dead right now.

240z4u
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No, your right it does sit on the top. I am going to install it this weekend and Ill be sure to show pictures after its finished. The picture is at a funny angle so its hard to tell.

Evan

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Cameron
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Yea really.. You running a 38mm gate?

240z4u
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Yeah 38.

Show up to dnidrags.com event, Ill be there if you wanna see it in person.

Evan

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Cameron
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Yea, i most likely will. 240Atlanta is talking about getting a caravan going to head down that way. When is it again?

240z4u
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Ill be there morning of the 15th to BS with my buddies, the 16th is the actual event.

Dude, its a friggin blast. You guys MUST attend.

Evan

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Cameron
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is it Feb 16?

Edit: just saw march 16. ill prolly come. but looking at your manifold, i just realized they cut the Divider out of it, how hard was that to accomplish w/o messing something up?

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Bwana
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That's a pic of mine from a while back. No clearance issues at all, but expect a little boost creep with a large compressor...

240z4u
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Car: '95 Nissan 240SX

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I cut the divider out. Pain in the *** LOL. I did it at work cause there was not much to do.

I cut the hole from the top with a hole saw, and cut the hole AND through the divider. Broke the plug out, and ground out the rest. Its not ideal, but should provide good boost control.

March 16th, as you said.

Evan

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StricNyne
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i thought of doing that a while back !! btw is that really u in that pic bwana ?

240z4u
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Chances are if I go to a larger turbo then this, its also gonna be on another manifold. I had to space this one out an inch to clear the exhaust manifold.

I am using a t3/t04e 60 trim .63 AR stage three wheels.

I had ridiculous creep before, this HAS to be better!

Evan

Darius
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Joined: Sun Mar 02, 2003 9:48 am
Car: RB25DET S14 - 665 WHP (SOLD)
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Looks good! The wastegate placement is optimal for the stock manifold. From Bwana's pic it looks like it should fit perfectly.

I wish I had my 6Boost manifold right now. Me and RB_Seth are waiting for that $hit to clear customs because our effing phone numbers were not on the package. Like that makes a F_CKING DIFFERENCE! F_UCK YOU TNT shipping! Sorry, just a little drunken venting going on here. I just want the ***** to show up so I can put it on and get on with life.

240z4u
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Dude, your drunk at 9:48? gonna be a long night LOL.

Thanks for the props, I hope it works out well. I would LOVE to go 6boost but I just can't justify the price for what my goals are. I will likely max out this combo and leave it.

If I get the itch again, Ill probabally sell the manifold/turbo/downpipe as a package and go 6boost with all the fancy crap like you guys did. Everything I have wrapped up in the WG/turbo/downpipe/manifold would prob just barely pay for the mani! lol

Thanks guys.

Evan

240z4u
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Oh, and get this, I am 99% sure they coated the INSIDE of the manifold too! I told them not to, but whatever. It has a brown/red look to it and seems to be too smooth to be cast iron.

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Bwana
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StricNyne wrote:btw is that really u in that pic bwana ?
My avatar pic? Naw, it's Steve Zahn .

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Cameron
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What type of weld did you use and did you drill are torch cut the hole out of the manifold and also how did you remove the flange divider ? Sorry for bumping an old thread. Thanks

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Shocker
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240z4u wrote:Dude, your drunk at 9:48? gonna be a long night LOL.
Start early end late.

Looks like a decent setup for not costing many dollars, Id take it over an e-gay option any-day.

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wakotow
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Car: '93 240sx S1 RB25 + HX35

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mine never would have worked like that with the factory crossover intake pipe. I had to bend mine down and have the top face the strut tower to fit, plus it was a 44mm.


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