1991 Skyline Gtr

[gtrjon]

Well like I originally said, I am getting the pistons custom ordered so they will be 87.5mm plus like 4though. I won't be running more than 650 horse to the crank. What would even happen with having too skinny if cylinder walls?

lol what happens when anything gets too skinny? they break! or in the case of cylinder walls they crack. normally caused by detonations.

[Dakota_gsx]

yeah thats what i though. im just amazed that 1.5mm larger bore makes such a difference in safe and not safe. or what people say so anyways.
does anyone know someone running an 88mm bore?

[Super_Dude]

the problem is how close you move to the water jackets and what not. That is where block splits.

Why not just grab another block and start from scratch. You could pick up a n1 block, get it machines and fill it with some 86.5mm pistons.

Also, you should do more research on 1mm oversized valves on our car.

[Dakota_gsx]

picked up a block yesterday. came with stock polished crank, stock rods and pistons as well.
will be ordering pistons on tuesday, then hopefully pick up the engine in a couple weeks.

[Dakota_gsx]

got the block and head back a couple weeks ago.

[Dakota_gsx]

Have made some pretty good progress. I have to have the car running by sunday cause im getting it tuned on Monday. ****.
here are some pictures of whats been going on.






And this is where we sit right now. both the engine mounts are literally a cm away from going in but i just cant get the fuckin thing to budge.

[gtrjon]

wait your getting it tuned on monday!? with no break in??????

[MattiasJacobs]

Did you get the engine in? I put a jack on the back of the transmission from underneath the engine lift. jack it up to level it a bit and slide it back. I know that cm is tough sometimes... Good luck!

[Dakota_gsx]

i was going to take it monday to lightspeed innovations (believe me i was going to spend every second on it and break it in before then). ive been booked for this date for a while, but the engine shop decided to take a long time with my block. Cam (the tuner) called me today and told me to just take my time so i dont mess something up. so i will take my time and he said he would get me in for the tune when i was ready. Huge thanks to him. got the engine mounts done. it took a while but i finally managed to get them on. Currently working on the transmission mount. Hoping to finish the trans part, bolt the axle back in, and then pack it in for the day cause Its Canada Day.

[shaggy]

great project u have built so far. THUMBS UP

[Dakota_gsx]

alright so ive been lazy updating the thread. When i started putting the engine back together, i had the car running in 14 days. This is my first rebuild of an engine and the first time ive ever been through an rb26, and any motor by that means.

After i put everything together and was ready to start it up, I ran into two problems. first problem, being that fuel looked to be spewing out of the fuel lines on the fuel rail (which was odd because they werent before i took the car apart. so i make sure they are all tightened and the same thing happens. so i look closer and it ends up that the rubber hose inside the steel braided lined fuel rail hose was all cracked and leaking. so i replaced that, and also converted to other rubber fuel lines to steel braided hoses. So i get that all done up, fire it up first shot, and well youll be able to tell from this picture that my oil pump works LOLOLOLOL.

So I put more oil in it, fire it up again and get a buddy to watch where its coming from, well Turns out, it was the oil gallery plug.

The reason i didn't put it in was cause i saw holes all over the block with threads in them, but i just assumed that when i put the engine all together, if there was an empty hole, it was fine(something deleted). but it turns out, one of these holes went to the oil gallery. So i throw in the plug, and off i went.

Drove it for the weekend, then down to Lightspeed Innovations in Red Deer to be tuned with Vipec Ecu.
I Had noticed during that weekend that there seemed to be loud noises from the valve covers, sort of a clacking. well when i put together all the timing on the engine, i was paying someone 100 bucks an hour to help me (a skyline specialist), and well basically we didnt check the clearance of the cams to buckets/shims becuase he assumed that my new valves were not tipped, (but they were 2 degrees). He had figured that the sound was the fuel injectors but i was still a little suspicious about it, so when i got to red deer, Cam (owner of lightspeed) said the same thing that there were loud noises (clacking) from the valve covers so he knew right there that it was the clearance so i just left the car down there for him to custom order shims (hes got a guy locally). So here i am, today, car has the new shims in it, runs quite(no clacking) and is just awaiting the tune which should be within the next couple days. I will post up the dyno within a week.
oh and i powder coated my wheels along with some new 255/40/17 Potenza RE-11s all around.

[Dakota_gsx]

My ebay ones fit perfectly and are an exact (stainless) version of what you have. The wall thickness and welds are both excellent, they even ground down the welds on the inside to help with flow! Overall I was really impressed. They were $125 shipped to canada, no taxes/duty/brokerage. Anyone that says they "never fit right" hasn't bought any recently, or never has has.

I think this is right. I've talked to a few friends recently about the e-bay ones and they all have worked fine. I think its more so for the RB20/25 top mount. They dont support big turbos. I bought one back in the day for a 35r and the intake housing hit the valve cover with a pie shape space on the flange. :S:S

Also agree with pulling the trans and assemble and then install. I once tried to install an engine with the trans still in (like in your pic) and it was a pain. Spent about 45 min with 2 other guys trying to "line it up right" to slip it in and in the end I pulled the trans in 5 min, installed it and slipped the engine back in with another 10 min with lots less swearing.


What coilpacks are those? I first thought they were CA18 but the pack itself is red too.
Looks good tho. i like the pic of it gripping in the corner. That Silvia is Awesome too!!!!

I bought the 125 dollar set of manifolds off ebay. Well lone behold they didnt fit. There was no way i was getting them to fit unless i bought a 3/4 inch plate to go between the manifold and turbo. then everything else wouldnt line up.

[rolyaT]

Hey Dakota where do you work at?

[Dakota_gsx]

Londonderry Dodge.

[rolyaT]

Ah nice seen lifts then the lathe. Wasn't sure mechanic or fellow machinist