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A Little Lost! With The Skyline!

Mitchie J
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Mitchie J Rookie

Mitchie J

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Hi All! Im Mitch, Im rather new to the whole skyline ownership. I've Been a Magna/Prelude Driver for the last 4 or so years. I've Owned my Skyline for a little while now, All though I love the car. It just seems not to be as powerful as I hoped. I was not hoping for nothing major. But something with some scoot about it.

I got the car back from the dyno, and it Only made 118Kw at the wheels. And it also does not feel to have the pick up as I would expect. I was wonder if this is due to a REALLY bad tune, or something else. I'm hoping that someone would be able to point me in the right way. To get it up too something more respectful.

The Car is still rather stock, except the 3in exhaust, and the HKS style Pod filter on it. It also Has a Boost controller, but It has stopped turning on :D. Some Info on that would be awesome! Its a Greddy Profec B spec 2 item.

Thanks in Advanced

Mitchie!

OH! its a RB25DET R33 GTS-T 1.5 Model...

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Taso84 Mentor

Taso84

Posted
Posted

Stock cars with no mods pull anything b/w 150 to 160 rwkw.

I'd say theres something seriously wrong:

1) Turbo might b e screwed

2) CAS might be screwed or the cam gear has been edged back a knob so u have much too retarded timing throughout the rev range

3) Worst case scenario is low compression in 1 or some of ur cylinders

Mitchie J Rookie

Mitchie J

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The Boost controller died on me today. Never had an issue with it, till today. Im not really sure on why though.

It does run a little Rich. The bloke who did my Dyno, does not really know much about skylines. He is a nice fella though. And the only one with a Dyno in tammy.

On higher Boost I can hear a Ticking. It's not there atm. But in the past it was there. It does Rev Clean without a issue. just feels like nothing much is happening.

Besides saying its Rich, and not a Power house. He said very little. Anymore Ideas would be grate, You been very helpful.

Thanks!!!

Mitchie

Moodles2 Grand Master

Moodles2

Posted
Posted

Find a good workshop that deal with skylines (Check the States forum) in your state and take the car there and explain your situation (get compression test done, check spark plugs, clean AFM etc).

How much was the boost wound up to when you brought it, and does your car have an aftermarket ECU or some sort of thing like a SAFC to deal with A/F ratios?

I would start by putting the ECU in diagnostic mode and find any error codes (PDF service manual is all the internet) and start from there.

To me it sounds like your turbo lost it's compressor wheel (quite common for ceramic type wheels to let go when boost is wounded high)

Benzino33 Experienced

Benzino33

Posted
Posted

Oh God, Im in the same boat and my tuner told me it was just a real bad tune.. I just got a tuned ecu and im dyno'ing on wednesday, wanna see if it makes any more power

Mitchie J Rookie

Mitchie J

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When I forst got the car, it was running the stock boost. 7Psi I believe that is? It did have the boost Controller, but it was not conected. I have the PDF manual printed out in a Binder now :D I'll check the ECU tomorrow for the error codes. Code 55 Means all clear I remember correctly. 45 for the Ca18.

the car still has the orignal ECU, with no piggy backs. whats the chances of a screwy ECU?

Is there a way for to check the Turbo for any damage without removing it from my car?

Benzino33 Experienced

Benzino33

Posted
Posted
When I forst got the car, it was running the stock boost. 7Psi I believe that is? It did have the boost Controller, but it was not conected. I have the PDF manual printed out in a Binder now :D I'll check the ECU tomorrow for the error codes. Code 55 Means all clear I remember correctly. 45 for the Ca18.

the car still has the orignal ECU, with no piggy backs. whats the chances of a screwy ECU?

Is there a way for to check the Turbo for any damage without removing it from my car?

man, there is no telling with skylines. unless you have their full import history, you have no idea what has been done to them since importation. My car had issues , majorly, so i ended up rebuilding the engine and remapping the ecu to get it right.lf i were you, I'd invest in a power fc or another tunable ecu.

pm sent too

Mitchie J Rookie

Mitchie J

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Hmmmm I've been looking at the Power Fc units. Seems like a popular choice. Also a Good unit. Ben you have to lets us know how your car goes on Wednesday, Im rather interested to see how that turns out for you!

I really want to get this car going. It is rather nice looking in person. Gets lots of stares, and I get people walking up to me asking me about. The Bright Yellow Paint work helps there I think :D

Benzino33 Experienced

Benzino33

Posted
Posted
Hmmmm I've been looking at the Power Fc units. Seems like a popular choice. Also a Good unit. Ben you have to lets us know how your car goes on Wednesday, Im rather interested to see how that turns out for you!

I really want to get this car going. It is rather nice looking in person. Gets lots of stares, and I get people walking up to me asking me about. The Bright Yellow Paint work helps there I think :D

yyep wil let u kno how the dyno run,,hoping for 200kw..big jump from wat it is now lol,, well my car is fast,,,got lots of torque but not kw, i just wana see how much of a difference it makes on the dynolog

R33Matt Collaborator

R33Matt

Posted
Posted

Yeah that kw reading does sound pretty low, you should also check your CAT and see if its still ok, sometimes they break and bloke up. I also cleaned the stock intercooler out on my R33 as it had oil in it. A good work shop should be able to work it out pretty quick :D Hope its a easy fix! The difference from what your running now will be huge! lol

Mitchie J Rookie

Mitchie J

Posted
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The Ticking noise sounds more the clicking pen. that got louder when the it went up the tacho. But it was only around the 5,000Rpm mark. The timing on my car has been advanced, only a little though. It does not also make the ticking noise ATM though.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

to all you guys thinking its tune related - it has a STOCK ECU

How can it possibly be a bad tune? You need aftermarket ECU/software for thatt to be possible.

Mitch - get the dyno sheet and post it up.

One with a AFR vs RPM, and one with Boost vs RPM

That will be the best start.

Stock-ish skylines will make 130-150rwkw, so its not totally 'bad' in my book, every dyno is different. However you need to post up the dyno sheets, that might tell a better story

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