Jump to content
SAU Community

Recommended Posts

Hi Guys,

I just bought my first Skyline and now I'm agonisingly waiting for it to arrive. (R33 GTS-T Type M)

Now I know how cars work but I don't really know much more. I'm not a mechanic.

What I'v been thinking lately is

How do I icrease performance without using bolt on mods?

Such as bigger turbo's, increase boost, intercooler etc etc.

Basically, I want to slowly build my car as genuinly fast and the first things I wanna do are make changes to the inside / strength / power of the existing engine and then once the engine is strong enough I will bolt on the bigger turbo's etc etc

The first thing I thinking of is CAMS and possibly head gaskets...that sort of thing.

Can I get a top ten list of non bolt on mods please guys?

I'm also open to people who oppose my point of view and thinking...as I said, I'm not a machanic. (Maybe the engine is strong enough to handle all the bolt on mods straight away)

Cheers,

Sam

As sumo has said, depends on your power target.

the stock rb25 internals have been pushed to 250rwkw time and time again by numberous members of the forumn. If that is your goal, then turbo + support systems are sufficient. A stock motor that is properly tuned will last a long time like this.

On the other hand, if your power goal is 400rwkw, then you'd need to do support systems, turbos + engine work.

K&N Panel filter in the factory airbox.

Full 3" Exhaust (including front/dump/cat pipes)

Apexi PowerFC

You can/should do those to start with and you won't even need to lay a hand on your motor. Expect those to increase power by around 30% to begin with.

Absolutely no point in modifying anything inside your engine if you don't have a larger turbo to bolt on as well (and it sounds like you are far from that) and even with a larger turbo you most likely won't need to modify anything at all inside the engine.

I'm also open to people who oppose my point of view and thinking...as I said, I'm not a machanic. (Maybe the engine is strong enough to handle all the bolt on mods straight away)

Cheers,

Sam

The engine is strong. Strong enough to go well into the 200's RWKW before you need to do anything other than bolt on.

Personally I couldn't wait and went for the bolt on's first.

I probably will not reach the limit where I do need to crack open the engine.. but who knows. Maybe one day.

El Bee

K&N Panel filter in the factory airbox.

Full 3" Exhaust (including front/dump/cat pipes)

Apexi PowerFC

You can/should do those to start with and you won't even need to lay a hand on your motor. Expect those to increase power by around 30% to begin with.

Absolutely no point in modifying anything inside your engine if you don't have a larger turbo to bolt on as well (and it sounds like you are far from that) and even with a larger turbo you most likely won't need to modify anything at all inside the engine.

Cheers and thanks for all your help guys. First thing on the list...Power FC. ooohohh can't wait!!!!!!!

Now I'm gonna go and put myself in a coma so when I wake up my skyline would have arrived. This wait is killing me :D

  • 3 weeks later...
hmm rb26 heads on rb30 block...then when you feel like upgrading then bolt on the goodies

yeah i agree with Ryosuke Takahashi, if you want to build a tuff engine first than build an RB30DET, then start piling on the bolt ons :D

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Yeah based on old XRC5964S specs, it looks to be roughly GTX3576R sized? But this 5964S compressor will flow 90lb airflow somewhat similar to the compressors in both the GTX3584RS or G35-1050.. I fully expected the 0.64 rear A/R to choke up top - seems way too small from typical convention - but these are seemingly beneficial over the prior 0.82 results.. Be interesting to see if he comments on the EFR question in that thread - he mentioned in a prior video that BW EFR's were the "cats pajamas 10 years ago", but by the sounds of things all his kits have been using Xona for quite a while now.
    • Yeah it’s still got the oem manual gearbox and clutch, only kinda mods are a blow off valve, coil overs, and a aftermarket intercooler. Also had it for about 2 months now with a lovely midnight purple paint on it.
    • Yeeeppp, been following a lot of the testing on the latest Xona stuff and there are some mental results.  He also went over 1000hp @ 4 hubs on his Mainline with a XRE6364S (63mm) which was also well into the 20psi range before 4000rpm on a 2.5. Crazy stuff. Fwiw the XRE5964S is basically the modern equivalent of their old HTA3582 - would drive nicely enough on an RB25 or 26, but proven capable of a huge amount of power if you want to spicy with rpm tho even at sane boost levels will make stout numbers 
    • The axels in my R33 seem tired, and have a bit of play in them. I cannot find any new of course, not interested in buying used, but I am looking to see if anyone can identify some cross compatible axles. In the states I have seen suggested for S chassis the J30 axles, however for the skyline (as best I can tell) the lengths are about an inch off (2.5cm) on both sides. R33 my measure L 22" R 24.5" GPT L 22.5" 24.25" J30 L 23.5" 25.5"  so shaft length is probably an inch wider. Not sure if someone has another still remanufactured option besides the J30. I figured worst case I can buy a pair tear them down and swap the center shaft. My other option was reaching out to GSP to see if they cannot piece together a set, since the axle stubs are still manufactured, I wouldn't think it be that hard to find a shaft or make a shaft work. 
    • Potentially some interesting data for some of you here; Hank Iroz from Iroz Motorsport testing a new Xona Rotor 5964S on a Audi RS3 2.5L DAZA motor. https://facebook.com/share/p/14EU18MyDqZ/ Cliff Notes: Turbo has the new Xona XRE compressor aero with an X4C compressor cover, reportedly 0.64 rear housing. 900whp (670kw) @ 37psi, 170k shaft speed, motor is making 2bar (29psi) boost by roughly 3800rpm, 500lbft (670nm) torque by 3500rpm. They overlaid a stock RS3 on USA 91 fuel (red), and a "Stage 2" RS3 on E85 (yellow), and this 5964S (blue) - the 5964S isn't losing any ground to either. Apparently out-flowing their prior tests with a Xona 8264S (green), and this 5964S (white) also has a smaller A/R than that did.
×
×
  • Create New...