Jump to content
SAU Community

Woohoo 290hp

C yar

By C yar,
in Western Australia

 Share

Recommended Posts

skyzerr33 Grand Master

skyzerr33

Posted
Posted
P.S Everyone said my turbo would fall apart in no time at all, and that was over 12 months ago and its still going strong :D

i would believe, when looked after our engines last ages, no idea why so many go bang.

MASTR had 190,000 on the clock when it was pinched still with stock internals and turbo.

rob77 Veteran

rob77

Posted
Posted

I think you'll find changing to an ebc wont get much more HP, the turbo is pretty much at its max now it will probably make more heat than HP at 12psi. I think i managed about 250hp on 12psi (with an ebc and i was still dropping boost late in the rev range) and a stock ecu. If you find my latest dyno charts in the forced induction thread you'll notice how flat my boost curve is all the way to the redline with the ebc and external wastegate.

Steve Grand Master

Steve

Posted
Posted

I DEFINATELY made more power with 12 psi compared to 10 psi (186rwkw vs 203rwkw)

Regardless, that turbo is a freak, it should be pushed to its limits in the name of research! wouldnt surprise me one little bit if there had been a bit of highflowing going on by a previous owner. (edit: still doesnt explain the injector crazyness happening though)

Beside that, and EBC should bring boost on quicker than just a bleed, it will generally hold boost better too, depending on which type it is eg, with the AVCR you can set the duty cycle at different rpm.

Either way - DO IT, you know you want to. :) as do we :D

C yar Veteran

C yar

Posted
  • Author
Posted
Damn you WA tuners/dynos/cars ! 215-225rwkw from a std RB25DET/Turbo ouch!

not sure benm.... my car has always got go hp concidering the mods it has (or lack of mods) but i am so happy with the way the car drives now since having my Power Fc fitted and tuned... much nicer than when i had a safc .....

Rob ... i agree with you, i wont be spending money on an EBC, i dont think it will make much more hp.... its holding a pretty steady 10psi now

C yar Veteran

C yar

Posted
  • Author
Posted

steve.. good point about the boost coming on earlier .... in regards to the research if you want to donate a ebc i will gladly pay for the tuning ..... hehehehehe :cheers:....

the previous owner was in japan.... when i imported her she had standard wheel, standard cat, standard front dunp pipe, standard intercooler so im guessing the turbo hasnt been touched but if it has ... lucky me :rant:

Steve Grand Master

Steve

Posted
Posted

Sorry I dont have a spare EBC lying around :cheers: Another thing you can do is replace the wastegate actuator with an R32 one - good for a couple of extra pounds early in the piece. If you can find one that is.

You never know what you get from Japan, its not uncommon for cars to be stocked out before selling.

My S13 came with all the stock bits, including 9 heat range iridium plugs and some nice under car drift scars. Also little tell tale signs like new bolts in the rear camber arms. Nothing else unfortuneately, just a couple of littel give away signs of a 'history'.

Anyway, I do hope one day you try a little experimentation.

rev210 Grand Master

rev210

Posted
Posted

The power curve is like many of the higher output RB25's. At above 4500-5000rpm there is a noticable difference between those that can and those that can't produce this power engine wise. I dare say that the condition of the ignition coils / wiring has the largest part to do with many Rb25dets being unable to produce higher outputs, given that the tuning of the engine management follows a similar map. I think investigation down this path might actually clear this up for those who aren't able to get the power up top.

MrGTST Grand Master

MrGTST

Posted
Posted
hmmmm maybe i should get new number plates huh what do ya think maybe "freek" hehhehehehe

 mrgtst.....what does your car drive like with a power curve like that... looks like it would be a handful

  Ps congrads on your hp too

 Pie .... yeah this is by far the best month ive ever had !!!! first the house then getting married now this hehehhehehe

Hmm how does my car drive like.... well I dont really have much to compare it too so I would say it just feels pretty normal to me..... But I guess its really around the higher RPM in third when mine really starts to push you back in the seat so to speak.... I think its something you learn to control, You learn what gear and what RPM you know works best if you want good power and response on the street.... and as you can see from my power curve I am not getting much through the middle of the range so I rely on the top end a little more... with all the tuning so far we still cant smoothen out that middle part of the curve :(

Steve Grand Master

Steve

Posted
Posted

C yar, the 32 wastegate actuator has a stiffer spring, and will give a higher minimum boost pressure. An R32 with an exhaust makes 10psi (roughly) minimum boost pressure, vs 7-9 for R33.

This means your boost will come on harder, and will hold boost better at higher pressures - due to the stiffer wastegate spring.

It is a common upgrade when using a turbo and running higher than stock boost to do the wastegate at the same time, especially if you are having trouble holding boost. For example HKS make upgraded wastegate actuators, but they would cost alot more than a second hand R32 actuator, which would be fine for your applications.

Its no different to changing the spring in an external gate (which I had to do) if you cannot hold the boost you want. Optimum is considered by some to be the stiffest actuator you can get that will allow you to run your minimum boost

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
 Share
Go to topic listing


  • Latest Posts

    • TurboTapin
      boost source Size Garrett gt28 gen2

      By TurboTapin · Posted

      You just need to remove the compressor housing, not the entire turbo. I would not be drilling and tapping anything with the housing still on anyways. 
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      So, I put my boat on a boat. First of all, I'm going to come out and say it. Why is Tasmania not considered a holy goal, an apex that all road-legal modified cars go to, to experience? This place is an absolute wonderland of titanic proportions. If people are already getting club runs for once in a lifetime 30 person cruises to Tassy then I've never seemed to see it. It is like someone replaced the entire place with an idyllic wonderland for cars, and all of the people living there with paid actors who are kind, humble, and friendly. Dear god. After doing a lap of almost all of the place I've found that it's a great way to find out all of the little things that the car isn't doing quite right and a great way to figure it all out. All in all, I drove for 4 hours a day for a week and nothing broke. I didn't even need to open the engine bay. This is by all means a great success, but it has left me with a list of things to potentially address. I also now have a 3D printed wheel fitment tool which annoyingly hasn't got any threads in it to actually assemble it. I might be able to tape it together to check the sizing I actually want to use, but it'll likely involving pulling the shocks out to properly measure travel at least at the front, and probably raise the car while I'm at it, at least in the rear. I scraped on quite a few things and I'm not sure how else to go about it. I was taking anything with a bump at what felt like 89 degree angles. And address those 10 other tasks. And wash the car. God damn it is dirty. And somehow, the weather was perfect the entire time - And because I was on the top of Mt Wellington it turns out it was very much about to freeze up there. I did something I typically never do and took some photos up there in what must have been -10 and the foggy felt like suspended ice, rather than mere fog. If you own a car in Australia, you owe it to yourself to do it.
    • QB6SAGR
      Battle of the broken skylines

      By QB6SAGR · Posted

      Damn that was hilarious, and a bit embarrassing for skylines in general 😂 vintage car life ey. That R33 really stomped. Pretty entertaining stuff
    • cosline
      R32 gtr transmission strength, billet plate

      By cosline · Posted

      Hi, I have a r32 gtr transmission. Does any of you guys have an idea how much power it will hold with the billet center plate and stock gearset? At what power level and use did yours brake with or without billet plate? Thanks, Oystein Lovik
    • Rezz
      Spotted on the street....

      By Rezz · Posted

      Saw this replica police car based on a Mitsubishi Starion XX parked next to a 'police box' (it's literally a box) in Hirohata, Himeji City in Hyogo prefecture the other day. It's owned by Morii-san who is a local Mitsubishi Starion enthusiast. According to a local radio station blog post, he always wanted to make a police car himself based on ones he saw in his favourite Manga comics.  As it's illegal to modify a car to look like a police car and drive on the road, Morii-san tried many times to get permission from Aboshi police station headquarters nearby. They refused initially by after they got tired of that they granted him permission. However, the car can only be displayed on private property and obviously can't be registered as long as the police livery is present. The car was completed at a cost of 1.5 million yen (US$ 10,000) in addition to the car cost. A location was chosen outside Hirohata Police box where the car can easily been seen from the street. Morii-san has two other Starion road cars, both widebody GSR-VRs.
×
×
  • Create New...