LOOK AT THIS MANIFOLD!!!

Discuss the RB20, RB25 and RB26 series engines.
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burnin240sx
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what motor is that for?


SeVa-S13
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It's a shorty SR mani.

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PSSHHGOESMYSR20
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Like S13 said, it's a shorty SR manifold but we make them for the KA24DE Rb20/25 ect. It's for the people who want a high quality turbo manifold but don't want to spend 1200 dollars on one.

importer
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Wow,One cool looking manifold with questionable welds made in some mystery 'Asian' country, and one 1930s style manifold with great welds made out of pipe fittings ( I know because I have worked in the industrial hydraulic field for 25 years), that has all the flow capability of house plumbing!!Will wonders never cease ?By the way, if any one else wants to become a plumber, I can give you a phone #, and part numbers for the pipe fittings.Not that I think anyone should make a 'Log' manifold for a turbo engine, unless it is a '27 LeSalle.

gani
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i think the best way you can sell this manifold or justify someone to fork out 650 for this is to put it on your own car and drive it for an extended period of time (i.e. testing and development) i wouldnt mind forking out 1500 for a manifold the i know will not crack and is the best flowing. if you can show this manifold doesnt crack you will sell it irregardless of where it is made at.my 2 cents

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PSSHHGOESMYSR20
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I would hardley call it a 1930s manifold. It's simply a standard LOG style shorty manifold, and they flow well for what they are. As a matter of fact I know several people making over 450 500 hp on fwd sr20s with them. They don't flow as well as our equal length manifolds, but they do get the job done. Keep in mind, these are designed for people who don't want to spend a lot of money for a manifold. If you want a well designed well made manifold, get ready to pay 1200+ for one. If you just want to get the job done, get a log.

I can guarantee you one thing though, these manifolds made out of "simple house plumbing" as you stated flow a hell of a lot better than your stock cast iron restrictive piece.

LoL, What I didn't know is that they made house plumbing out of schedule .40 forged steel. I guess you learn something new every day.

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BoostFab
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importer wrote:1930s style manifold with great welds made out of pipe fittings
dude, where the hell have you been??? these are the ultimate LOG style manifold, everyone in the turbo game knows that....it will out flow the stock cast manifold anyday any power range. seriously.

btw! it's made out of stainless steel and don't mind that it will last forever!!!! ahahah giving that the properly welded as is the one shown above. i just made my friend one for his rwd sr20....to get rid of the stock cast (crappie)...


importer
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Just a bunch of plumbers !!

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PSSHHGOESMYSR20
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It's very easy to critisize, so if you can make something better take your best shot. As I said earlier, we make equal length manifolds also, the log is simply a cheaper alternative to a more restrictive cast iron manifold.

How much power are you making?

Yellow4g63
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importer wrote:Just a bunch of plumbers !!
Wow your witty retort has left us all in amazment.


Limpan
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I don´t know much about exaust mainfold , but shouldn´t the collecktor be longer on both, and the angel between the pipes shouldent be more than 15degrees, otherwhise the exiting gas from one cylinder goes up towards anoteher cylinder instead of in to the turbo, due to less resistance.

Here is a mainfold made by my frind, and all angels and pipe length ar calulated for this engine (rb25):


Limpan
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one more pic

Limpan
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one more

PurpleGodzilla
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Thats really nice..But why are the runners on 1 and 6 so long? Kind of defeat the purpose of equal length or even remotely close to it...Still nice though.

Yellow4g63
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Limpan wrote:one more pic
Thats kinda what the new ones look like cept for the angle isn't as crazy as yours, there a lil closer.

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BoostFab
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now we're talking...tha's one lovely manifold. i like the location of the egt probe

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AmoebAssassin
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Quote »Thats really nice..But why are the runners on 1 and 6 so long? Kind of defeat the purpose of equal length or even remotely close to it...Still nice though. [/quote]I dont know if he said it was equal length, but I think the reason for all the crazy plumbing is to bring the gasses from each cylinder together at a milder angle, preventing the gasses from shearing past each other and creating turbulent flow (which is almost always slower than laminar flow). In theory you should see some gains from that, but i'd bet it's negated by the restriction from the crazy angle through which the gasses have to flow when first exiting the head, especially on runners 1 and 6. *shrug*
Modified by AmoebAssassin at 8:10 AM 2/27/2005

Limpan
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Actually the pipes are pretty much eacuall leangth.


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