Jump to content
SAU Community

Recommended Posts

Hey Just bought an RB25DET Skyline and looking at ways of improving power first off. I know there are many ways to do this and all are somehwere in the forums but i want to know more about the front facing plenum idea. What exactly does this do? Does it require more modifications than just this? will it help increase power now or later down the track?

Link to comment
https://www.sau.com.au/forums/topic/392365-front-facing-plenum/
Share on other sites

  • Replies 55
  • Created
  • Last Reply

Top Posters In This Topic

Standard plenum is fine for most power goals. Your better off having an aftermarket ecu with a front facing plenum. Only reason i put one on is cause it looks good and makes changing plugs easier

Edited by 89CAL

If you have not spend $5000+ on basic mods

Turbo

ECU

Injectors/Fuel pump

AFM

Clutch

Brakes

Suspension

FMIC

Then don't waste time with a plenum. Better off spending money on all the other stuff, far better gains and return on the spend.

Awesome Cheers guys!!!

You dont happen to have any quick links that will direct me to the topics on getting the power I want etc? This place can be a mission to find what im looking for even with the search

Well I havent really got a power Number in mind which may be my first problem. Whats stock power output? Ill check the other outputs in the dyno results and try see what should be next, it allready has a 2.5" exhaust straight through no cats and an 11psi wastgate actuator.

But ill check out the results and the FI Guide, Cheers!

Well I havent really got a power Number in mind which may be my first problem. Whats stock power output? Ill check the other outputs in the dyno results and try see what should be next, it allready has a 2.5" exhaust straight through no cats and an 11psi wastgate actuator.

But ill check out the results and the FI Guide, Cheers!

200 - 240ish rwkw is quite achievable on a budget. Search using those figures and see how you go :)

Before chasing power, how about some good suspension? Ie coilovers or decent shocks and springs, new bushes throughout etc.

Maybe 4000 series rotors, new pads and brake fluid, maybe replace the old worn and cracked brake lines etc.

Uh Hadnt really thought about that my head was blinded by the idea of speed. As a start though I still have my R33 GTS4 which has bilstein Shocks all with new bushes. Do you reckon it would be an improvement to swap these over?

OK well the Bilsteins would be an improvement but you would need to check that they are interchangeable- the awd supension could be different. A Bilstein dealer could possibly adapt them if necessary.

Yes, do your research for a long time then make a decision. If you rush it, you'll kick yourself.

Power should always be the last upgrade on anyones mind.

Quite often i've found if the car handles and stops well i'm happy with the factory power output. Maybe fit an exhaust, air intake and a few other things to free it up a bit.

And if you need to lose weight in your pocket, modify a skyline! About 7k should get you 280+rwkw with nice solid handling. Then factor in about 1k more for when nothing goes to plan.

laugh.gif

I'd factor in more than 1k, could wrack that up in one dyno session when something goes wrong lol.

Every time I see my car on the dyno, I don't know about you guys, but I squint my eyes and get f**king nervous when those revs climb. It never bothers me at all on the road, only on the dyno. The first time I got my car on the rollers, I was like Wtf are they doing to my car!

Edited by SargeRX8

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

    • So you can then buy a more expensive, less reliable, more boring and slower replacement that's harder to work on and you have no knowledge of?
    • Will take much better photos when the time comes, I still want to do a sub 1m50s on street tyres at SMSP (just because). Then will slap on proper tyres and see if the car can get down to 1m40~45s range. If it goes sun 1m40s without aero, then wow.. but I don't expect the shit box to go that fast.
    • I have the OS Giken R3C with the GM 26 spline input shaft in my 32(Rb32 with only around 750hp atw) and its a pig to drive. Its actually very forgiving when its cold when when its warmed up, it chirps the tires even when trying to take off slowly. Mind you though, part of this has to do with my clutch master(Non-OEM) so the travel on the rod is shorter. How did you get 1130hp at 85% @e50?! Are you running a stroker? If so, I would recommend the R3C purely because it handles the abuse.
    • First time trying out a regularity format at the Peter Hall Memorial 6hr. It was an interesting experience with everyone on our team being brand new to the format. Safe to say reading and understanding the rules and scoring system would have really helped our team. We finished firmly last thanks to the majority of all laps across the team being penalties. In the words of my teammate Matt “Turns out we are both too quick and illiterate.” Another car had entered before us and already secured number 12 so i needed to clearly cross them out to avoid confusion for any other blue calsonic livery'd r32s at the event. The team consisted of an R32, an AE86, a supercharged V35, and a Kia CEED GT bought at salvage. I ensured we all had matching "Peer Pressure Racing" banners and overalls. This is the longest session of back to back hot laps the car has ever done (20mins no cool downs on a hot day).  It was a true test of the cooling /oil control mods and they certainly made big difference! Enjoy watching me lose 14 concurrent points for the team:  Unfortunately I only managed 45mins of track time over 3 sessions (20min, 20min, 5min) out of my allotted 90mins before my gearbox let go. Something related to shifter fork resulting in 3rd being neutral quickly followed by all gears neutral, then it being lock in two gears at once and unable to move. Optimistically there were no bad noises. But I am yet to pull box out and diagnose. Fortunately i was also to snag a tow home while I slapped a permit on the Kiaa which came on a trailer
    • Haha thanks for reply man Trying luck and Hoping to find one from all the sources, it's hard to find one as Nissan stopped production on sunroof glass panels
×
×
  • Create New...