Jump to content
SAU Community

Slowly Losing Power...

Dee 33

By Dee 33,
in Engines & Forced Induction

 Share

Recommended Posts

Dee 33 Community Regular

Dee 33

Posted
Posted

Hey guys.

Just under a year ago I spent a nice dose of cash on my stock R33 Gts-t. Enough to net me a wonderful 240rwkw. Enough to light the tires in second when boost came on. A very healthy dose of power.

Now as I've had it in this state for almost a year, I've gotten used to the power. This is expected. But you know how sometimes you say to yourself "It doesn't feel as fast as it used to..." and you wonder if it in fact is as fast as it used to be.

I had my car in at Mercury getting a service/wheel bearing done and I asked them to throw it on the dyno.

Well I get back in to my car and see the dyno sheet waiting for me when I pick it up. Alas. My fears are true. My baby only pulled 200.6rwkw. I know something is wrong because I have enough mods that I should be killing that figure.

460hp T04e

Wolf3dv4

Fuel pump

FMIC

Malpassi

16psi

Full zorst

Taking a look at the power curve, it's perfect. It's one of the smoothest curves I've even seen and the car still runs flawlessly. No misfires, no choking at low revs, nothing... except for the fact that I've lost a ton of power somewhere on the way. I can guarantee it's not a difference in dynos either because my mate pulled 173rwkw in his S15 with just cooler, zorst and boost on the same dyno which is hell high for those mods.

So my question is, what could it be? The guys as Mercury noticed nothing when servicing the car and it's been a gradual loss of power. I know because even with bald tires on the rear I'm no longer losing traction when I used to.

The only thing I can come up with is that it might be my engine getting tired and so I'm planning on getting a compression test done. Would this probably be the issue? Worn rings or something? If so, am I actually looking at getting a full rebuild rather than just replacing some engine parts to get that compression back up?

Any help is appreciated. I was about to get cams and injectors done but I'd rather find the missing 40rwkw first...

Link to comment
https://www.sau.com.au/forums/topic/102031-slowly-losing-power/
Share on other sites
AdamsR33 Mentor

AdamsR33

Posted
Posted

It would actually be harder to smoke 'em up with bald tyres because there is more rubber in contact with the ground, acting like a slick tyre. the tread is there only for when it rains so to channel out the water. Mate you might be heading in the right direction about compression, also don't forget the difference could be a number of things, fuel, temp, and different dyno, it only takes couple of differences and they all start to add up. hey keep us posted as i'm about to spend some cash on my 33 soon.

warriorbrawl Contributor

warriorbrawl

Posted
Posted

Yeah I had my car dynoed there recently (very happy with the service) but it seemed a little low on the power readout but same deal good power curve and ARF's.

It aint the coolest weather at the moment and that can be like 10-15 kw there. Maybe there dyno is a little on the low side.

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


  • Similar Content

  • Latest Posts

    • Duncan
      V36 2008 Coupe Wiring Differences with Android Screen

      By Duncan · Posted

      It doesn't really answer your question...but is the head unit full android or just android auto, are you happy with how quickly it boots and responds, and do you have a link?  If we can identify good Android alternatives it will really help people stuck with Japanese screens. Did it have a separate reverse camera input so you would replace the factory one, or are you just going without now...that would be a pretty big steps back. And finally, do you have a picture of the "wire" that you can't plug in? Most likely it is some sort of aerial that is not too important eg japanese traffic or am radio or something if you haven't noticed a functionality issue
    • Duncan
      Neil's R33 Gts-t Build

      By Duncan · Posted

      haha funny enough I did ask him wtf he had been up to with the electrics....but no answer
    • Matvei27
      WTB noltec r32 front upper (camber) arms

      By Matvei27 · Posted

      Still wanted
    • joshuaho96
      Brake pad Compound suggestion

      By joshuaho96 · Posted

      For a daily just run Akebono ceramic pads. That's what they're optimized for. Obviously don't try to run it on track or anything like that.
    • sausagepianist
      V36 2008 Coupe Wiring Differences with Android Screen

      By sausagepianist · Posted

      Hey all, I'm sorry if this has been discussed before.  I have a 2008 Japanese import V36 coupe with nav but without Bose. I bought one of those AliExpress android screens, which for the most part works really well.  The only thing that doesn't work is the air con controls (well sort of) and the factory reverse camera.  The AC can be controlled fine but it doesn't report the change in temp and mode to the screen, and the volume knob/other audio controls from the panel don't register on the learning app.  I am pretty certain that the problem is the difference in the head unit between base model (Nav but no Bose) 2007-2009 coupes and anything after 2009.  Mine is the one with the blue connector all the way to the right as seen in this forum post:  The reason I think this is there is one wire left over that doesn't fit anywhere on this head unit, or in the factory screen which also uses different connectors to more recent versions.  I've seen the upgrade from OWC, and have sent the guy a message on eBay but no response yet.  I also don't particularly need the whole kit, just *maybe* an adapter for this one cable.  Did anyone else here have the same problem, or have any insight about what I can do to get this working?  I have been in contact with the seller but all they seem to be able to do is ask for more pictures and videos. Minor edit to add:  I have been researching and found a screen on Aliexpress that actually specifies my head unit in the listing, so these things do exist.  I will contact the seller to see if the wiring adapters are interchangeable with other screens.   Thanks in advance!
×
×
  • Create New...