Fix Thread turned into Re-build thread! (built rb25 neo)

[sickness14]

Shes being worked on right now, almost done. I had to leave because i had to go to work (im there now) lol

-wired up fans-put in new spark plugs, installed coil packs, and harness-manifold is on, wastegate relocated

-still need to fix intercooler piping on left side, decided to move maf because of it interfering w/ IACV plumbing and skipping the metered airflow.

-downpipe is being made tonight i believe. im about to take a ride over and check on it. ill let you guys know,

im aiming for tomorrow for it to be running. still need to fill fluids and crank her up!

[S14-NEO]

good stuff man, make sure you leave the fuel pump fuse out and crank it over till the oil light goes out...then pop the fuel pump fuse back in and fire it up...the reason you do that is so that you get proper oiling throughout the engine and you dont dry start it cause an aweful lot of racket in head area (mainly the VTC stuff).

[sickness14]

good stuff man, make sure you leave the fuel pump fuse out and crank it over till the oil light goes out...then pop the fuel pump fuse back in and fire it up...the reason you do that is so that you get proper oiling throughout the engine and you dont dry start it cause an aweful lot of racket in head area (mainly the VTC stuff).

Good call, i was curious about how i was going to prime it.

Ive got the stock oil pressure sender removed right now because im running an oil pressure gauge and decided not to T into the filter housing. Is this a bad idea? Does the ECU see the oil pressure and will this have any downfalls? I know the light will probably be on but i figured it would be better to monitor through the gauge. Can i use the stock sender and splice into the signal and connect it to a gauge? Im using a "glowshift" cheap gauge for now until i can get either an AEM digital like the others, or possibly something better.

What should the oil pressure be at during idle / driving just for reference if i use the gauge?

-John

Tomorrows a big day for me!!! 4 months later...

[sickness14]

[sickness14]

ITS ALIVE!!!! She started right up

The intercooler piping still needs to be finished, we started it up with the maf on the throttle body and the IACV was not connected.

There is an exhaust leak on the turbo manifold flange. Its leaking from the gasket to the head, my guess is that the flange is not perfectly straight

the manifold will come back off monday and get adjusted to it sits flat.

the whole exhaust is back on, and a downpipe was fabricated. The mounts that connect the engine block to the trans bellhousing are on now, which they never were previously. They came with the car when i bought it but were never installed.

I hooked up the oil pressure sender and gauge but the gauge wont read anything at all so its probably broken

Hopefully it will be running monday so i can take videos and pictures to post !!!

Talk to you all soon

[Cjmartz2k]

Congrats man!

[eh?]

Is there anyway you can measure the combustion chamber volume on that DE head?

[sickness14]

im not sure how to measure the volume on the head. What is the reason you ask, are you interested in buying it from me?

Let me know if there is anything i can do to find out.

-John

[Shocker]

Good to hear it started!

[eh?]

im not sure how to measure the volume on the head. What is the reason you ask, are you interested in buying it from me?

Let me know if there is anything i can do to find out.

-John

It's very easy to do, I've done it on a r33 det head. Unfortunately I've got no funds for a side project but knowing the head cc may help you sell the head to someone interested in doing a RB30 swap.

If you wanna do it, this webpage shows how:http://www.merkurxr4ti.com/chambervolume.htmlYou can substitute the cylinder for a large syringe.

[bumblebtuna]

alright alright alright

let's see some videos of this money slut, gald to see the progress john

[sickness14]

alright alright alright

let's see some videos of this money slut, gald to see the progress john

Its running well, but has a small oil leak coming from trans / block area. Im going to check it out tomorrow. Im editing a small video i made today of the car running and doing some pulls. it should be up tomorrow!

[meet07]

you john I had the same leak. It's probably the rear main seal. I would put some solution in there that might stop that leak. It goes in the oil and I forgot the name but purchased it at carquest.

So the blow by maf is working great huh??

[sickness14]

you john I had the same leak. It's probably the rear main seal. I would put some solution in there that might stop that leak. It goes in the oil and I forgot the name but purchased it at carquest.

So the blow by maf is working great huh??

we replaced the rear main seal when the trans was off, it turned out to be the valve cover. im about to tear it down and fix it.

I just noticed that in one of the pictures i took, my timing belt looks like its backwards. The arrows on it are pointing counter-clockwise against the engines rotation. Can this cause an issue, should it be removed and fixed?

-John

[Cjmartz2k]

Interested in the blow by MAF as well.

Have you done a compression test on it since you got it running?

[Carl H]

blowthru maf rocks out hard with its c*** out.the modded 20 has run this way since day one with out a hitch...useful when an ic pipe pre maf is blown...slow but drivable.

[sickness14]

blowthru maf rocks out hard with its c*** out.the modded 20 has run this way since day one with out a hitch...useful when an ic pipe pre maf is blown...slow but drivable.

Hey carl,

Im not sure if you saw my previous post but my timing belt has been installed in the opposite rotating direction. Can this have an affect on its performance? its a greddy belt, and was on the motor for about 2000 miles previously. any feedback on this?

[sickness14]

Interested in the blow by MAF as well.

Have you done a compression test on it since you got it running?

Chris,

Im going to try and get the compression test done soon. I found out that my new spark plugs were not set at the right gap and i re-gapped them. they were at .08 mm and needed to be at 1.0-1.1 mm. the car runs way better now and ive got to go back into the power FC and un-do what ive changed on the timing map to compensate for the incorrect gap. I think i pulled too much timing out and now its kinda laggy down low.

also, i thought of a part i need! and then i remembered that it was an auto transmission... lol Slave cylinder... fail! haha.

Anyone have a power FC IGN and INJ map they would like to share for me to see roughly what it looks like? i know mine will be much different but i just want something for comparison. Im trying to learn how to tune it myself. The INJ map is near perfect and runs great under boost. I just think i need to re-do my ignition settings. I may have to just re-initialize the power FC and re-tune the base map because i dont know what the default settings were on the base IGN map.

_john

[meet07]

hey john I would do what you just said. Scracth the hole map and start over. Being that your running the stock injectors you should not have to mess with the ignition. As far as the fuel map goes pay the extra money and take it to the dyno and tune yourself. Dont dare let anyone else tune it. Its hard to own a turbo vehicle(especially like this) and not be able to do the work yourself unless you have alot of money.

I tuned my turbo DA9 on the high way with my gurl....you can not do it yourself unless you have some datalog or record/playback of some sort. have a experinced freind help you.

[sickness14]

Ladies and gentlemen... what you have all been waiting for...

drum roll...

TADA! the video is done

[Carl H]

awesome work man, glad to hear its running under its own power again!nice MIL, on the dash...atleast the wiring is right!

[sickness14]

awesome work man, glad to hear its running under its own power again!nice MIL, on the dash...atleast the wiring is right!

Haha thanks man. The mil is from a sensor code "THRM" on the power FC sensor menu, which i believe to be the traction control or the lack thereof. ive got to figure out how to bypass that , ive read a few different things on skylines aus. about putting a resistor on pin 52 on ecu to ground. not sure if its the same on the neo ecu pin out. any ideas?

-Also, this is kind of funny but all this time ive had the car ive thought the bushings in the rear end were toast because any bumps i would go over the back end would sound like the world was coming to an end. Turns out when i was cleaning out the trunk, i gutted it out pulling all the carpet lining out and i found a BUNCH of tools and garbage lodged in the inner rear quarter panel where the trunk floor ends!!! I found a box of pens, soggy cardboard, 2 c-clamps and a screwdriver all back there. i threw it all away and drove the car.... NO rattling. I already spend $220 in bushings from energy suspension and got a quote of $1k to do all of the cars bushings and an alignment from a chasis shop. Also, on the front end, it was banging around when i went over bumps. i pulled the adjusters off of the coil overs, jacked up the car, and found that the front shocks were LOOSE where they attached to the camber plates. i tightened it all up and now its rock solid. amazing what can be achieved when things are done right!

-John

[mott6904]

Awesome video! Now we need one with just the car running and a couple pulls so we can hear that mother scream. Seeing all these builds finish up makes me want to get back into finishing mine.

[meet07]

after you get it running right we need to go down to the track and compare.....hehehe. Oh yeah you would be a fool to charge someone 1k to change the bushings. Bring it to the crib. I have a torch,hammer and other tools to get the job done. Dont be shy.

[Cjmartz2k]

Damn, I hope I do my swap while I'm in NC now with you guys and all your experience around to help

[Carl H]

lol, dont forget us charlotte peeps!check out carolinanissans.com if you havent already.

[sickness14]

lol, dont forget us charlotte peeps!check out carolinanissans.com if you havent already.

DUDE no way! i didnt know you were that close. Kick a**

[bumblebtuna]

nice!

haha, i told you the spring perch was loose glad you tightened it up

get that thing tOOned!

[Cjmartz2k]

lol, dont forget us charlotte peeps!check out carolinanissans.com if you havent already.

s***! Yeah, I've been meaning to look that site up but it's blocked from work, so I keep forgetting. I'm starting to think NC is a real good place for RB's

[S14-NEO]

this is all very good news .... i may end up planning a road trip up to NC to hang out for a day or two...that is if Carl can make some room in his place for me to crash....hehe