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Saturday, May 20, 2017

What Wheels Fit My R32 Nissan Skyline GT-R?

BBS LM Wheels . 18 x 10 + 20 offset. 
Now that we are seeing more and more legally imported, over 25 year old JDM Nissan Skyline GT-R in the US, there are lots of questions.   One of the more common questions is : What wheels fit?  What will these wheels look like? What is the widest wheel that will fit? What is the most aggressive fit?

Volk TE37SL 18 x 9.5 +22

First question -  What do you do with your car? 

Is it a daily driver? Is it a weekend car? Is it a car you use at the drag strip? Do you use it on the road course?

Second question - What brakes are you running?

Brakes make a big difference in what wheel and tire will clear and fit.

Third question - What compromises are you willing to make? 

Everything is a compromise, which are you willing to make for look vs performance.

OEM R32 GT-R 16 inch wheels. 16 x 8 +30

Friday, May 19, 2017

Nissan Skyline Power Steering System Information and Troubleshooting

Nissan Power Steering System Information

OEM wheel outer diameter 370 mm 
Turns lock to lock - 2.6
Model PR25SE
Steering Gear/ Rack Part Number 49001-05u00
Fluid Capacity - Approx 0.9 L

GT-R Steering Force Inspection

R32 Skyline For Sale

R32 Skyline For Sale
1989 Nissan Skyline GT-R R32
Gunmetal Grey KH2
66,141miles/105,827km with service records
All Stock auction 4point car
California Certification in Process
R32 Skyline For Sale


Timing Belt
Belts x 3
Rocker Cover Gasket
Hicas Cooler Hose
Fuel Filter
Front Upper Arms
Tension Rods
Rear Side Rods
Hicas Ball Joints
Rear Stabilizer Bush
Clutch operating cylinder
Radiator upper and lower hose
E/G oil, Transmission oil, F&R Diff oil
Brake Fluid, Transfer oil
Spark plugs
Air Cleaner
Wiper Blades
4wheel alignment

Wednesday, May 10, 2017

R32 , R33 , R34 GT-R with R35 Ignition Coil Kit

Supertec Racing R35 ignition coil to R32 GT-R ignition coil kit

Supertec Racing VR38 to RB26 adapter kit allows for fitting of VR38 coils from the R35 GTR. 
These are a huge improvement over stock coils and rated to around 2000hp as demonstrated by some high powered R35s using factory coils.

These parts needed to install
  1. Adaptor Kit ~ $190
  2. Wiring Harness  ~$149
  3. R35 GT-R Coils  each~$25 (aftermarket),  $60 OEM Hitachi , $100 OEM Nissan dealer
  4. Coil charging time change (aftermarket ECU)
With a wiring specialties harness, the coils are plug and play for R32, R33, or R34. On the R32, and R33 they eliminate the ignitor box.

R35 GT-R Ignition Coils for Sale

Monday, May 08, 2017

What Kind of Gas Should I Put in My Nissan Skyline?

What kind or octane gasoline should you use in your Nissan Skyline?

What kind or octane gasoline should you use in your Nissan Skyline?

A.  Premium pump gas. 

What does that mean?  Whatever is the highest octane fuel you can get locally. Here in the USA that can be anywhere from 94 octane (AKI) to 90 octane(AKI).

But wait a second, aren't Skylines supposed to run on 100 octane? In Japan they have 100 octane.

A. 100 octane (RON) isn't 100 octane (RON+MON/2).

There are two different scales at which octane is measured. RON and MON. Most countries use RON which is the higher of the two numbers.


The most common type of octane rating worldwide is the Research Octane Number (RON). RON is determined by running the fuel in a test engine with a variable compression ratio under controlled conditions, and comparing the results with those for mixtures of iso-octane and n-heptane.


Another type of octane rating, called Motor Octane Number (MON), is determined at 900 rpm engine speed instead of the 600 rpm for RON.[1] MON testing uses a similar test engine to that used in RON testing, but with a preheated fuel mixture, higher engine speed, and variable ignition timing to further stress the fuel's knock resistance. Depending on the composition of the fuel, the MON of a modern pump gasoline will be about 8 to 12 octane lower than the RON, but there is no direct link between RON and MON. Pump gasoline specifications typically require both a minimum RON and a minimum MON.


In most countries, including Australia, New Zealand and all of those in Europe, the "headline" octane rating shown on the pump is the RON, but in Canada, the United States, Brazil, and some other countries, the headline number is the average of the RON and the MON, called the Anti-Knock Index (AKI), and often written on pumps as (R+M)/2. It may also sometimes be called the Posted Octane Number (PON).

Will my car run better on 100 octane (AKI)?

A. All things considered, no. Not unless you need that octane to prevent detonation. 

Many high-performance engines are designed to operate with a high maximum compression, and thus demand fuels of higher octane. A common misconception is that power output or fuel efficiency can be improved by burning fuel of higher octane than that specified by the engine manufacturer. The power output of an engine depends in part on the energy density of the fuel being burnt. Fuels of different octane ratings may have similar densities, but because switching to a higher octane fuel does not add more hydrocarbon content or oxygen, the engine cannot develop more power.

The big sticker on the ECU is a pretty good sign that this ECU is not stock. 

Does your car have a stock ECU?

A. If not then some tuned ECU's are very aggressive, and can cause damage. This is why we recommend that a modified car be retuned for local fuel. You will get the most out of the car. 

Source: Wikipedia

Nissan Skyline GT-R Fueling

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Saturday, May 06, 2017

Oil Change and Oil Filter on a Nissan Skyline GT-R

Oil, the engines life blood. In a high performance car like a Nissan Skyline GT-R, it is a good idea to have a regular oil change schedule, and stick to it.  Some people say every 3,000 miles, or every 6 months.  Some push the changes out to more than that. For any car you are going to run at the track, it is always a good idea to change the oil before and after every track day.  Cheap insurance.

That blue end, that is an oil filter.
Oil - 7.5W-30 recommended in Japan(R32). 4.5 liters in the pan, 0.4 liters in the oil filter. A good 10-30W synthetic is a  start for a street car. Oil Change/Filter change. Keep it happy. We have used Redline 15/50w or 10/30w full synthetic. We are on Royal Purple now, and seems to be working well for us. 4.5 liters, stock. Filling it to the bump on the dipstick is generally considered acceptable. There are some crazy oil guys out there. Check Bob is the Oil guy if you want to go oil nuts.

Oil Filter -
OEM 15208-60U00  

Tools -  Getting at the oil filter on an R32 GT-R with Hicas can be a trick. It is under the collector. Between the Hicas lines on the frame rail, and the various coolant and air lines under the collector, getting at the oil filter can be a bear.  We recommend you buy a 3 claw oil filter wrench. Sears/Craftsman have them.   They are about $15-$20 and will get the oil filter off about 99% of the time on an RB26.

3 claw oil filter wrench. Stubby flex wrench. This combo will slay most Skyline GT-R oil filters
Some people use a screwdriver to stab the filter if they can't get it off. While it can work, it makes a mess, and if you do it wrong (we have seen it done wrong), you can end up with a nub of a very stuck oil filter.

A strap wrench is possible, but again not a lot of room to swing any tools under the collector.  Oil filter pliers, same deal.

In real life all oil filters would be 1/4 turn past hand tight, but even then they can still be difficult to take off.

K&N HP 2008 oil filter

The K&N HP 2008 oil filter has a 1" nut on the end that makes removal a bit easier. It also has a provision to safety wire the filter in place.  Most people wouldn't safety wire/lock wire their filter in place, but in the race world, it is a great idea.

Trust oil cooler kit with oil filter relocated in front of subframe. Not our favorite place to put an oil cooler

Other Options - An oil filter relocation kit is a popular way to make oil changes a little easier.  There are a number of ways of doing it. If you are putting a relocator, we highly recommend an oil cooler at the same time.  The OEM filter is a 3/4-16 thread.  Some oil filter relocations change the filter thread pitch, so make sure you check the instructions before you buy a gross of oil filters.

Black oil filter on relocation behind battery, left side of picture

Nissan Skyline GT-R Basics
Nissan Skyline GT-R Oil Coolers
Nissan Skyline GT-R Oiling : Oil Pumps, Oil Restrictors, Oil Pan Modifications

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Thursday, May 04, 2017

Nissan Skyline GT-R Starters

Two different RB26 starters. 

"Click.  Click.  Turn the key again, click.  Come on, this thing just started. Why isn't it starting now? "

 Been there, done that, and recently we had an R32 GT-R that was reported as dead. Wouldn't start. So this is what we did.

  1. First thing is a quick look everything over. Make sure that there is a battery. Make sure the terminals are connected. Just a reality check. We have seen some odd things, and not checking the basics will bite you in the end.  Check for 12 volts. 
  2. Attempted to start the car. Lights on dash work. Nothing but click when key is turned.
  3. Next check out the battery terminals. We have seen loose positives and loose negatives cause this to happen. 
  4. If nothing was found, now comes the fun parts.  Jack up the car and check the connectors on the starter. If the small square wire comes off, then the solenoid won't engage. Check the terminal, make sure its not loose. 
  5. Next, find a decent extension and hammer, and give the starter/solenoid a couple good smacks.
  6. Go back inside the car, see if it cranks over.  If it does, you need a new starter. If it doesn't try it again just to see if you were too much of a girly man the first time to free up the solenoid. 
  7. Changing the starter on a GT-R is not a fun job.  Sorry.  The top 14 mm bolt, blocked by the solenoid can give you fits. 
  8. We normally use a stubby flex with a deep 14 mm socket. However depending on how stock the car is, there are other ways to get at it. 
  9. On the race car, with no Hicas, no OEM oil cooler, you can get at the top starter bolt from the top. Some people say they can reach the top starter bolt with a long extension going above the alternator. If you can do that with all the OEM parts in place, you should try your hand at brain surgery. 

Two different OEM starters

Two OEM starters, one Autozone 16203 starter. 

OEM, OEM, Autozone 16203 starter
Wiring Diagram
How to test

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