My 3076R build up

Discuss the RB20, RB25 and RB26 series engines.
flatrate
Posts: 274
Joined: Sun Aug 30, 2009 9:52 pm
Car: S14 kouki

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My orginal plans where to have a stock block making around 450 whp but when i recieved my swap it was all messed up, thanks JDM ENGINE DEPOT

Had water in cylinder 3 accompanyed by alot of rust



So now here we are with a built motor



and the finished STOCK product it made 267whp on 11psi with stock s14 exhaust



Now onto the good stuff

I had this 30R laying around from a previous build so i decided to put it to use Setup consists of the following

GT3076R w/1.06 divided turbine housingAFI (arizona forced induction) tubular divided manifold Twin tial MVS wastegates850cc top feed injectorswalbro pump and fuel lab regulatorHaltech platinum Pro PNP EMScustom catch can setup

Its not completley done yet but heres some progress pictures should be in a couple of weeks











mott6904
Posts: 679
Joined: Tue Jan 30, 2007 2:50 pm
Car: rb20 big turbo big cams s13, 97 kouki, turbo audi a4,turbo busa

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I like it. It made good power for being stock turbo, fuel system, and exhaust. What did you pay for the exhaust manifold? What are you thoughts on it(Fitment, and finishing work)?

flatrate
Posts: 274
Joined: Sun Aug 30, 2009 9:52 pm
Car: S14 kouki

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Fitment is good, it works with my AC and powersteering.. its tight but it works.. quality of the manifold is very nice, its robticly welded in spots and the collector fitment is superb i paided 1400 usd for it

bobob729
Posts: 68
Joined: Fri Jan 27, 2006 6:45 am

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flatrate wrote:Fitment is good, it works with my AC and powersteering.. its tight but it works.. quality of the manifold is very nice, its robticly welded in spots and the collector fitment is superb i paided 1400 usd for it
what intake manifold is that

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WhatsADSM
Posts: 496
Joined: Fri Jun 10, 2005 5:27 pm
Car: 1998 240sx

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Everything looks great. Good choice on the parts and nice turbo selection. All around looks like a great build. Keep us posted once you get it all together and tuned.

What are you plans for the car? Street cruiser, or do you have a specific type of racing targeted?

flatrate
Posts: 274
Joined: Sun Aug 30, 2009 9:52 pm
Car: S14 kouki

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mainly a street car, but id like to run it down the quarter a few times, i frequent the strip with my other car as well, not much into drifting altho i do enjoy watching the sport

Rx927
Posts: 23
Joined: Fri Nov 20, 2009 7:46 pm
Car: 93 Vert

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Quick question. JDM Engine Depot in NJ? Did they Honor there warranty?

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Chaos the Xile
Posts: 789
Joined: Thu Feb 09, 2006 4:56 pm
Car: 1974 Datsun 260Z

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Do you have any contact info for AFI? I really wanna talk with them about that manifold. the CONTACT US part of their is not working...

What kind of mods have you done to the head??

flatrate
Posts: 274
Joined: Sun Aug 30, 2009 9:52 pm
Car: S14 kouki

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Rx927 wrote:Quick question. JDM Engine Depot in NJ? Did they Honor there warranty?
JDM engine depot didnt honor any warrenty i sent them pictures my ASE cert identifcation numbers had numerous conversations with them they wouldnt do anything told me to run the engine like that and that i should have never taken it apart...

flatrate
Posts: 274
Joined: Sun Aug 30, 2009 9:52 pm
Car: S14 kouki

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Heres some updated pictures of my progress... hoping to have it done this weekend!!

I recirculated the dumps i hope it doesnt sacrafice power but i just dont want to smell it!! its a pretty tight fit with the power steering and AC intact but everything fits well












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meet07
Posts: 1189
Joined: Tue May 08, 2007 5:48 am
Car: 89 180sx rb25det
Location: North Carolina
Contact:

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Man this setup is gangster!!!!

l0nestar
Posts: 2251
Joined: Fri Mar 10, 2006 5:24 am
Car: 1993 Nissan 250SX
2004 Toyota Altezza
1963 Chevy Impala SS
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I approve!

flatrate
Posts: 274
Joined: Sun Aug 30, 2009 9:52 pm
Car: S14 kouki

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fired it off today, still have to route some lines and fix a couple little things but it runs!!


Darius
Posts: 4820
Joined: Sun Mar 02, 2003 9:48 am
Car: RB25DET S14 - 665 WHP (SOLD)
Location: Chicagoland

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Looks awesome!! Keep up the good work

neonbomb
Posts: 487
Joined: Sun Apr 22, 2007 11:26 am

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This is a gem in a jungle of ill-funded, half-assed fanboy projects...

Aka Nice job!

flatrate
Posts: 274
Joined: Sun Aug 30, 2009 9:52 pm
Car: S14 kouki

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Hit the Dyno not real impressed with the power im making on 20psi and 92 oct. pump

I feel somethings holding it back, i think its the wastegate dumps causing turbulance in the dp from being to close to the exit of the turbo... going to change it soon

Video of Dyno

http://www.youtube.com/watch?v=cd0YgyuuIhw


Modified by flatrate at 8:19 PM 2/25/2010

EJ8 944
Posts: 59
Joined: Fri Aug 14, 2009 7:57 pm

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The powerband does get a little shaky uptop there, but none the less those numbers aren't too bad for a 3076.

I really like your setup, and your car.

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WhatsADSM
Posts: 496
Joined: Fri Jun 10, 2005 5:27 pm
Car: 1998 240sx

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Very nice!

Pretty good numbers for pump and ill bet you still have a little bit left in it.

Also the powerband is fantastic! Very linear, very usable. I'll bet that thing is a blast to drive, all while putting down great times at a track.

Keep the updates coming!

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Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

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needs moar timing up top...you should be able to get a nice torque plateau with reasonable timing.

flatrate
Posts: 274
Joined: Sun Aug 30, 2009 9:52 pm
Car: S14 kouki

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Carl H wrote:needs moar timing up top...you should be able to get a nice torque plateau with reasonable timing.
I think the reason its not holding torque better is due to the wastegates being recirculated to close to the exit of the turbine. im going to change it and re dyno it when i get some time

When i was on the dyno adding timing resulted in great gains, up until i reached MBT. i was gaining about 11ft lbs of torque per degree, i added almost 3 degrees over my base map, any more resulted in about 2ft lb gains very minimal... so theres no gains to be had by adding timing.. something else is causing issues

Bluefire
Posts: 1130
Joined: Fri Jun 06, 2003 6:07 am

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Your missing a lot up top. at 20psi, you should be seeing between 450-500hp at that boost level on a dynojet. Are you running any cams? Are you seeing any kind of knock up top?

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Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

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intersting that adding timing resulted in such low returns...i would have expected more than that.i'm with bluefire, seems like there is more power to be had...even with stock cams the 30r is capable of making more power than that.

flatrate
Posts: 274
Joined: Sun Aug 30, 2009 9:52 pm
Car: S14 kouki

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Bluefire wrote:Your missing a lot up top. at 20psi, you should be seeing between 450-500hp at that boost level on a dynojet. Are you running any cams? Are you seeing any kind of knock up top?
Im running stock cams, i have knock control disabled as it was getting some false knock (enough to pull 4 degrees) its not pulling timing now, ive logged timing during all the pulls it matchs to the map...

Like ive said before i think the wastegates being recirculated is causing issues.. most people recirculated back into the DP alot further down then i am as well so im hoping it will free some power up when i change it... THoughts?


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