R32 RB20DET Track car build.

[ScreamingChicken]

Hey guys, This is my very first post in this forum. I wanted to share my build step by step of my R32 skyline coupe with everyone whos thinking about building a track car or just wanting a bit of extra power in their daily driver .

Anyway l'll keep posting pictures day by day as i build up my R32, Just dont expect anything amazing because im only 17 :P.

When i baught the car someone had allready put in a front mount intercooler ( wasnt a very good job ) so thats one part of it out of the way.
The first thing i was planning on doing was swaping out the old internaly wastegated turbo and low mount manifold for a big GT3540 external wastegate turbo with a high mount manifold.

What would be my best choice of new injectors for the turbo, 450cc or 550cc injectors? Theres allso a company that sells ECU's here that said i should reach 350+HP on 18PSI if i run a setup like this with a free flow exhaust and free flow airfilter with a Z32 AFM and a upgraded fuel pump. l was thinking 550cc injectors should do the job. Any ideas on what brand of injectors i should get or look at? Cheers.

[themadscientist]

Stop.
If you want to push that kind of power through 12 year old RB20 the first step is a complete rebuild.

Square away the intercooler install and give the car a tune up. Drive it like that for now. a full exhaust will really wake the car up as well.

[ScreamingChicken]

The car had a full rebuild from the previous owner who is a mechanic and a friend allso. Intercooler was done before my friend owned it though.

I am planning on doing a full exhaust on it soon but it feels very underpowered to use on the track for drifting. It still has enough power to stepout in 2nd gear pulls but i dont feel its enough for drifting.

[themadscientist]

That's a good start. I hope he replaced the 89 little water hoses under the intake manifold and the hard pipe that runs behind the head to the turbo.

Normally, a stock manifold will work, but in the case of the RB20, it's not. It distorts when it gets hot enough and drifting will heat it up that much and you will start snapping studs. Spend the money and get one that is not going to fall apart. As far as injectors, 550s will do fine. You need a bigger pump and adjustable regulator. You should invest in a quality engine management system. You will be venturing out of piggyback territory crest 300hp, I wouldn't think about that past 250hp really. The stock intake will work. Does it flow great, not so much, but the head ports are the real chock point on the 20 IMO, not the manifold.

[ScreamingChicken]

Yeah i plan on buying a good Steam pipe manifold next week with all same length pipes and wraping it with titanium heat wrap to keep the heat to a minimum.

Any ideas on what pump and regulator i should be looking for? l've never built or upgraded an engine to this extent before so any help is greatly appreciated.

[OriginalWheelman]

I used an aircraft fuel pump for my RB project, but I'm a mad man. NISMO makes good FPRs. You'll want to make sure you go with a NISMO unless you're doing custom engine management, as Nissans use a manifold pressure based variable fuel pressure system.

Get a standalone. AEM makes a great one. If you're good with computers, they are easy to set up, but find an experienced mechanic to tune your fuel map.

Also, buy my longblock. Hell, buy my Standalone too.

[ScreamingChicken]

Ah i see thanks for the info. Even if i wanted to buy your block and standalone im from New Zealand so it would make for expensive as hell shipping haha.

I've honestly never had any experiance with cars and computers in the same respect (EG. ECU mapping etc.) And i've had no experiance with turbo cars untill i braught my R32 last week so this is pretty much a major learning curve for me.

[ScreamingChicken]

Ok guys so today i decided to start stripping out the car and ripping everything apart to plan how im going to built the dash setup and get a roll cage put in. About 5minutes in i decided to start the beast up and let her warm up before taking her for a nice drive on a sunny winters day. When i started it up for some reason it is now idiling at 2500RPM and wont go any lower even after warming up and playing around with the throttle cable nothing changes, the llights and battery gauge are flickering so im guessing that meens the altinator is f*** or needs a rebuild. And now when i go to rev it, it has really bad responce and the car shakes a bit allthough it still gets to its limit no problems. Any ideas on whats i could do? Oh and just to top things off the power steering pump is leaking now, i have power steering if i turn very softly but after that its no power steering if i turn normaly. l have a Hi Cas pump so if i swap the brackets on the pumps over and block one of the holes on the pump should it work the same as my original non Hi Cas pump?

[Razi]

For fuel injectors, I'd go with a reputable company like Nismo/Tomei/SARD/GReddy/HKS/etc...
Expensive but worth it.

A lot of cheap aftermarket companies just redrill stock blanks and that can cause bad spray patterns and sometimes inconsistent flow rates.

Nismo FPRs are nice since they drop right in.
You could also run a bigger FPR such as AEM, Aeromotive, SARD, or Tomei.

[Ozzie]

New Zealander!
[youtube]http://www.youtube.com/watch?v=uYFsBkxK_H0&showinfo=0[/youtube]

[ScreamingChicken]

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[ScreamingChicken]

Well I guess this build is over before it starts really. I just lost my job and I dont really have any money to put into this car anymore since i was upgrading my daily driver.

l'll start posting again if I can find a job but in the mean time, The Skyline will just sit in the garage

[Ozzie]

Bummer

[ScreamingChicken]

Well eventhough i've lost my job and i'm 17 so i'll probably find it near impossible to find a job, i've decided to keep on working on the mighty Skyline as much as i can with the start of the drifting practice events coming up in a few months.

Today i stripped out the whole inside allmost to bare shell so i can start seting up the whole inside since that costs next to nothing.

I'll have to endure the pain staking job of taking all the little pieces of s*** stuck to it off to give it that nice finish.
Pictures will be up tomorow for anyone wanting to have a look at the tasks ahead of me and laugh at my misfortune of ripping piece off for hours lol.

The hard stuff stuck to the metal will be coming off, I got told theres between 10-40KG of that s*** depending on what car. I have no idea if thats true or not but i got told its best to take it off.
So my idea was to get dry ice and leave it on it untill it freezes and then chip it off or just crack out the good ol' hammer .

Anyway be expecting more stuff every week, Im determend to do this as soon as possible.

I allso fixed my previous problems with a new altinator and a small box on the throttle body, There was no connection where the plug was so a new plug and it was good as gold!

[OriginalWheelman]

Light is your best mod since at this stage it's free. A little luck and you might be able to sell of the extra pieces for some gofast parts.

[ScreamingChicken]

Haha well to be honest i was just going to make it as light as possible, some buckey seats and a steering wheel and some nice D2 coilovers if i can somehow get $1500 to buy them and just get some bolt on parts that i can use till the engine blows up.

Pretty much keep it a stock RB20DET till she cant take it anymore and then either buy a Rb25DET or build a Rb30DET, Cause i've heard of people using allmost stock Rb20DETs to start off.
And to be honest all i really need is track time at the moment and not a supercar.

But im enjoying working on my car even though i cant afford the parts i'd like to have.

Anyway like i said i'll have pictures up tomorow! Oh and any ideas of what i should do to replace all the electric windows? Cause thats alot of extra weight i dont need!

[Ozzie]

Lexan (polycarbonate plastic) is used for windows on race cars.
You could sell the windows, electric motors, and door trims to get the cash for the lexan replacements.

[ScreamingChicken]

Yeah thats what i was going to do. Just thinking of a way to be able to like click the window into different positions for when its a mega hot day lol.

I have a half sister who owns a glass company who can get it for me cheap as chips so i dont think it'll cost me too much .
Anyway pictures of the job ahead will be up soon . I hope i've got some folowers for this blog even though it'll be the cheapest build ever haha.

[ScreamingChicken]

I honestly cant figure out how to post pictures, Can anyone point me in the right direction?

[sx moneypit]

Here you go > how-to-post-pictures-using-photobucket-t521110.html

[Razi]

If you put a space between the link and the ">" it won't break the links.

[sx moneypit]

oops!

How's everything going Razman?

[ScreamingChicken]

[ScreamingChicken]

OK guys so theres just some pictures of the mighty Skyline. It looks rough but with some TLC im sure i can turn it into stunner. It has a 5 stud conversion and bigger brakes off anther skyline as you can see. Most of the inside has been striped, The damn bootlid arms snapped on me yesterday so now its all held together with abut 40 zip ties lol. But yeah pretty much what you see is how it is atm. Ill tidy it inside up then buy some bucket seats, put a roll cage in it, A drift wheel and get her running properly and start making some videos of my adventures on the track days. l'll keep everyone updated as i do things and plan everything out.

[Razi]

oops!

How's everything going Razman?

Going good!

Is that steering wheel spray painted?

[ScreamingChicken]

Nope it seems to be how it came. Its a horrible wheelthough i hate it. Dosent help the car has no power steering atm and the wheel is slippery as hell!

[ScreamingChicken]

Hey guys i have a question regarding injectors again. Theres a guy selling 6x injectors that are 270cc RB25DET ones and he said they have new pintil caps and new O rings and are high flowed out to 550cc injectors. Seems pretty dodgey to me for $50 550cc Injectors lol. Every other injector i have found has been $900 for 6x 550cc injectors. But will RB25DET injectors fit a a RB20DET? lm pretty sure they are both side feed injectors but not to sure. Allso whats the difference between normal 550cc and High imp 550cc injectors? l see so many different types so i thought i'd ask before i buy. Allso anything that fits an RB20DET and a RB25DET ill be buying so that when my 20DET blows ill be able to buy a 25 and straight swap ^_^.

[Razi]

A 270cc injector that's been drilled go 550cc are going to flow like crap. Don't skimp on your fuel system, you'll regret it.
If an injector is low Imp, you'll need to wire in resistors to make them work with your car.

[ScreamingChicken]

A 270cc injector that's been drilled go 550cc are going to flow like crap.
If an injector is low Imp, you'll need to wire in resistors to make them work with your car.

So it should be good if i get SARD 550cc injectors thats high imp then?

[Razi]

Yep, but don't SARD injectors have different harness plugs?
If so, you'll need to cut and solder new connections on.

HKS/Tomei/Nismo all use OEM plugs so they're all direct drop-in.