Custom Turbo B15 2.0 - SR20 Forum
 
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#1 (permalink) Old 09-29-2008, 02:18 AM
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Custom Turbo B15 2.0

Hey what's up guys, My name's Anthony and I'm from AB, Canada. This Sentra is my second SR powered car and I thought I'd finally convert my engine to what it was originally meant to be. So feel free to share your wisdom and input on any of the parts listed to aid in my road to boost.
Here's what I have to work with, a 2001 Nissan Sentra SE w/ PP that is currently rocking a RR SR20DE with a 130,000 kms of road time on it.
That usually doesn't seem to bad for an eight year old car, but considering on how much more stress a turbo system puts on the motor I thought it be a good decision to buy a used jdm engine.

note* black bold words are parts already
obtained and red bold words parts
needing to buy, blue words are for the rr sr20de+t
that I am no longer continuing to builld on


The first thing I immediately thought about was the turbo itself, so I looked around for a bit and stumbled upon a new HKS GT2835 56 Trim turbocharger for only a $1000.00, don't you love EBay , turbine A/R .64 internally waste gated. I also ordered a 4 bolt .61 A/R turbine housing to be used with a 38mm Tial waste gate with a mild 8.7 psi set spring for easy street drivability. As for a turbo manifold I went with Protech's top mount shorty manifold and matching 3.00" downpipe.
Some parts I would also need to complete the set up are:
turbo gaskets (inlet, outlet, oil drain flange)
AN to NPT fittings for oil lines
the HKS oil feed kit comes with a built in restrictor in the fitting that is needed for the GT series turbos
steel braided oil lines:
-3 oil feed, -10 oil drain
oil drain flange
banjo fittings for water lines
Nissport oil sender adaptor for oil feed
water hose, vacuum/boost hose, clamps, tie downs
hardware



As for fuel management I went with some MSD 72# low impedance injectors & injector connectors, which I think will be needing Resistors (JWT 6.8 Ohm, 10 Watt) because I will be using a JWT programmed B14 ecu to control my set up, a nismo fpr, walbro 255 lph fuel pump and jgy top feed fuel rail.

Keeping the boosted air cool is a Precision 350HP intercooler, some 2.5" aluminized steel bends and a 3.00" intake pipe to plumb it all up. Since no company made a complete intercooler kit for a B15 SR20DE with a Protech set up gave me no choice but to make my own. A Nissan OEM blow off valve(recirculated) will help to keep compressor surge away while a z32 MAF (draw through) keeps the AFR's in check.
Some parts I would also need to complete the set up are:
silicone couplers, clamps
bov flange & gasket
air filter, adaptor


Just in case,
OEM Head Studs
Cometic Head Gasket

To cap things off I plan to get an F1 Racing Stage 3 clutch & flywheel so I don't burn my OEM on the first ride around the block, a 3.00" VRS exhaust and high flow cat, some performance ES motor mount inserts, a boost gauge, a manual boost controller, an outlaw engineering thermoblock spacer for the itm conversion, some FAL slim fans and a Koyo radiator to keep engine temps down.

Some extra things I think that will need attention are: (I think I'll try answer these as I learn along the way)

The intake manifold and tb which will need to switched over to a B14
-Is this a basic swap where old sensors are used? (throttle body hits the valve cover, solution, use an outlaw engineering thermo block spacer or use a regular de valve cover)

B14 3 IACV sensors need to be spliced into B15 harness (look into fsm),
B15 TPS doesn't fit on B14 TB (Either trim B15 TPS to fit or buy proper B14 TPS)

-Where can I get an adaptor for the B15 to B14 ecu conversion? (member was making and selling these, don't know if still in the business of, if not there's always jwt or jgy diy instead.

Last edited by TonyB15_SR20; 06-14-2010 at 03:52 PM.
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#2 (permalink) Old 09-29-2008, 09:26 PM
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Big mistake on sending the ECU to JWT! If you would have sent it to Calum basic program is $105, and Real Time is $370!

JWT charges you $100 per reprogram. Calum only $5 for some new burned chips. Real Time, free because you can upload bins via usb.
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#3 (permalink) Old 10-01-2008, 01:31 AM
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I wouldnt call it a mistake, just a more expensive method. Still a good product nonetheless.

~jRod
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#4 (permalink) Old 10-07-2008, 10:26 AM
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you'll want a SAFC to monitor and adjust you fuel. ive heard that jwt's ecu tend to make the mixture to rich

BOOST it!!!
92 s13 redtop swap in progress. Coilovers soon
92 g20 agx on tein springs. 5spd swap, hoping to get motor number 3 in her soon.
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#5 (permalink) Old 10-07-2008, 12:38 PM
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Well, besides the engine managment you will be using.... JWT, Calum, AEM or whatever you use... I like calum realtime myself but, do whatever you feel. I didn't notice that you had solid motor mounts, you WILL need to upgrade the stocks. I know this because, I work on one of those GTir swaped b15 you were talking about. Also is your trans an LSD, if not you will be having some traction issues. Now, will you be using the stock harness in the car with all the sensor hookup. Some modification may be needed if you start getting codes. I don't know about emission control up there but, that may turn out to be important.


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#6 (permalink) Old 10-07-2008, 03:26 PM
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Quote:
Originally Posted by JJsr20ma View Post
you'll want a SAFC to monitor and adjust you fuel. ive heard that jwt's ecu tend to make the mixture to rich
not true.

Usually another problem...(air leak,etc) Mine was actually a little lean. Not much, but definitely not rich. Most people dont bother to pressure test their systems. A small leak can create a rich condition so its easier to blame the ecu than find the leak LOL. There has been alot of big power cars that use JWT ECU's.

The Calum is nice and saves you money, so theres nothing wrong with using that either...

Personally, Im not a fan of the SAFC.

~jRod
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#7 (permalink) Old 10-07-2008, 08:06 PM
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I never really thought about the motor mounts till now but I'll be sure to check it out. I believe it comes with an LSD from the factory because it's said to have the performance package and yeah I think I'll be using the stock engine harness. I've found a couple of sites that have conversion instructions for what I'm trying to do with the B14 ECU. Other than that if any codes come up I'd attempt to fix them one by one. I'm not sure if this is the best way to go about this other than making one from scratch.

Last edited by TonyB15_SR20; 10-07-2008 at 08:11 PM.
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#8 (permalink) Old 11-09-2008, 12:09 AM
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keep us posted...

I'm planning to swap the gtir into my qg b15. Ive got the whole front clip and the sr20 2.0 b15 manual tranny just sitting and waiting for January when the build will begin. I'll be anxious to see what solutions you come up with. and erick212, people like you that know about these b15 projects are hard to come by...at least in my experience so I'm sure you will hear from us . Anyhow Good Luck Tony!

gil
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#9 (permalink) Old 11-09-2008, 07:09 AM
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Hrer is a link to the for sale post for the car.... I have not really pushed the sale and have it sitting and awaiting some changes...


http://www.sr20forum.com/cars-sale/2...sar-motor.html

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Last edited by erick212; 11-09-2008 at 07:12 AM.
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#10 (permalink) Old 03-27-2009, 01:36 AM
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Looks I've finally folded, I'm ditching my rr in favor of a jdm sr20det. Reason being I ordered a JWT ecu programmed for 8.5:1 instead of 9.5:1. At first I thought I could just switch out the pistons and lower the compression ratio but it seems that's not the case. Difference is in the head and it didn't make sense to me to try to find an sr20det head so I guess I have to eat my own words about this build being a little different than everyone else's.

And hey ZHSSKZ good luck to you too! It's been a long wait but hopefully it will all be worth it in the end, maybe I should've just listened to my dad and bought a factory turbocharged car, lol.

Oh yeah and big thumbs up to toronto jdm for a clean engine

Last edited by TonyB15_SR20; 03-27-2009 at 02:07 AM.
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#11 (permalink) Old 02-21-2010, 02:56 AM
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Pics up in a minute, trying to straighten this url thing out.

Old pic links removed

Last edited by TonyB15_SR20; 08-24-2010 at 03:11 AM. Reason: Due to updated pics
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#12 (permalink) Old 02-21-2010, 03:13 AM
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If anybody is interested in how I routed my intercooler piping check this link out.
http://www.b15sentra.net/forums/showthread.php?t=161723

Last edited by TonyB15_SR20; 08-24-2010 at 03:12 AM. Reason: Cleaning up thread
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#13 (permalink) Old 02-21-2010, 03:36 AM
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hey TonyB15_sr20, dont mean to get off topic a little, im down in edmonton and im in search of the same tranny thats in your car, u wouldnt happen to know of any around?

95 200sx SE-R (BB det/gt28rs/tb 3" exhaust/magnaflow/550's/z32 MAF/walbro fp/Blitz DD bov/Tein Basics/B15 LSD/mishimoto Rad
13.40 @ 113mph (on fully inflated winter tires)
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#14 (permalink) Old 02-21-2010, 03:41 AM
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Sorry man, nothing specific comes to mind the only thing I can think of is the local salvage yards as far as used parts.
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#15 (permalink) Old 03-17-2010, 08:06 PM
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It took me about a year to complete my B15 turbo project.

2000 Sentra SE-T
2005 Pathfinder SE
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#16 (permalink) Old 03-17-2010, 09:09 PM
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Yeah just took a look at your b15, damn that car looked clean, inspiring even lol.
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#17 (permalink) Old 08-24-2010, 01:51 AM
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Updated pics of the build


















Last edited by TonyB15_SR20; 08-24-2010 at 02:09 AM.
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#18 (permalink) Old 11-19-2012, 10:36 PM
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Wow it's been sometime since I last posted anything on this forum. So I'd like to update the progress on my B15, I haven't done any work on it myself this whole time so I decided to take it in to a shop to be completed. I had them fill the fluids, install the exhaust and try to get it started. They succeeded in it all but have told me that there are numerous wiring problems with the engine and it is running poorly. They blame the adapter that I had asked someone to make me on this forum so I said the hell with it and am now going to install a b14 se-r wiring harness instead. With that being said, I am on the look out for a complete engine wiring harness from a 95- 97 se-r, please let me know if any are available. I would appreciate it.
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