N/a General Service, Pads, Oil, Plugs, Etc

[UNR33L]

Hey guys,

I'm going to do my 100k service a bit early (97k), basically i want to know what parts / products everyone uses on there n/a engines and what is the best to get performance wise (within a decent price of course) so things like what brake pads to get, oil and oil filter, spark plugs, timing belt? etc.

I am aware that their is a sticky here with some information but i want to know the best parts/products to get, to get the most out of my car, and so others can find out as well for when they want to do the same thing . Also anything else that is worth doing on the service that I'm missing please let me know.

Get the suggestions rolling!

Thx, Leigh.

[UNR33L]

Taken from the other thread just general info about the RB25DE. (thx Greg hope ya dont mind)

Engine power

RB25DE

Power: 142 kw@6400 rpm (147kw for series II or 'Type S' variants)

Torque: 231 Nm@4800 rpm

This generally translates to 90-100kw @ the wheels.

Oil change

Engine

I use genuine Nissan oil filter - $9.95 from your local dealer

Engine oil capacity

RB20E, RB25DE: 3.8L (not including filter)

RB20E, RB25DE: 4.2L (including filter)

Skyline manual recommends changing oil and oil filter every 15,000km - I change both every 7-10,000km.

Gearbox

I use Castrol VMX80. I'm happy with it. Redline is the best but its expensive.

Gearbox capacity:

RB20E: 2.0L

RB25DE: 2.5L

I used Shell oil for a bit - it was absolute shit, synchros crunched etc. Steer clear of shell gearbox oil.

Diff

I use Castrol EPX80w90. Others have used VMX80 in their diff as well.

Diff capacity:

RB20E non lsd: 1.0L

Active LSD (you have an active LSD light on your dash): 1.6L

Normal LSD: 1.3L

I change my diff oil every 15,000km because my diff is made to do a lot of work

Brake discs

R33 GST25/GTS4

Original thickness: 26mm

Mininum thickness: 24.2mm

Fuel economy

Non turbo skylines have relatively efficient fuel economy compared to turbos. I average 10.9L/100km - this includes a lot of thrashing. The factory quoted figure is 9.6L/100km. Fuel tank capacity is 65 litres.

What petrol

As Japanese cars are tuned for very high quality petrol (high octane) it is advisable to run optimax (Shell), synergy 8000 (Mobil), ultimate (BP). Personally I use synergy 8000 as this is what runs the best. I've used normal premium before and it ran fine, perhaps a bit less responsive though.

Spark plugs

N/A skyline spark plugs

Exhaust

Extractors - People have had good results with Coby extractors, order from www.partsco.com. I use these - they give the engine a much fatter midrange, making the car a lot more fun to drive. They suit both RB20 & 25. Some power gains might be had with the RB25 by using larger diameter piping for the extractors than the Coby extractors (65mm)

Off the extractors 2.5" is the largest diameter piping you should use for RB25DE. Quieten the exhaust with resonators if its too droney.

Air filter

Benefits of a pod filter are ambiguous. I run an apexi pod and on hot days I REALLY notice the drop in power associated with the pod sucking hot air.

Skyline manual recommends to change air filter every 60,000km.

Weight

Factory quoted figure for R33 GTS25 is 1320kg. I recently weighed mine with 1/3 tank of fuel and found it to weigh 1309kg (ABS, hicas, airbag).

General specifications

Had these on my computer for ages, they might be useful to someone.

Turning circle: 10.4 m

Length: 4640mm

Width: 1720mm

Height: 1340mm

Interior length: 1820mm

Interior width: 1415mm

Interior height: 1090mm

Wheelbase: 2720mm

Front track: 1480mm

Rear track: 1470mm

Ground clearance: 145mm

Edited October 20, 2007 by 4Door_33GTS

[dori34]

that pretty much sums it up dude,

if you want a high performance and good timing belt, opt for a gates one, cost a bit more then the standard but way better.

thats what im gonna get when i do my 100k service.