Jump to content
SAU Community

Recommended Posts

If it's the turbo selection that is causing these issues.... Everything else is irrelevant. See what the new tuner says.

You're dreaming its not out of puff & i don't know how you're jumping to that conclusion?! As history repeats you can bet these blokes haven't done their job properly AGAIN! Odds are the boost control hasn't been played with properly or they have piss weak springs in the wastegates. But falling on its ass like that at 5500 isn't showing the 6262 being all in IMO pretty sure itd taper off more gradually then just drop off the planet like that. It is a 705hp turbo FFS and hes using over 500 of it currently.
  • Like 4

You're dreaming its not out of puff & i don't know how you're jumping to that conclusion?! As history repeats you can bet these blokes haven't done their job properly AGAIN! Odds are the boost control hasn't been played with properly or they have piss weak springs in the wastegates. But falling on its ass like that at 5500 isn't showing the 6262 being all in IMO pretty sure itd taper off more gradually then just drop off the planet like that. It is a 705hp turbo FFS and hes using over 500 of it currently.

Thats your conclusion.

Thats your conclusion.

While I don't think that turbo is necessarily the best option for this setup, I tend to agree that the turbo is not the most likely cause of what is being seen. Again a shame that there appears to not be better communication from the previous tuner.

  • Like 1

how does it go starting at low temp?

Is that not the reason xklaba didn't take his?

Never had an issue. Even down at Cootamunda in the middle of winter, left outside at the hotel. That was bloody cold that morning too.

Get the tuner to do a PROPER cold start.

The problem I have is my car was tuned to in summer where the mournings are still over 15deg so setting it up for 0 deg is a guess at best, it starts 6 deg with a bit of whinding, less then 10 seconds

It just wasn't looking like starting and at 5:30am with my fuel pump I didn't want to sit there whinding for however long it would have taking to start upsetting my already dickhead neighbours

I also have cold Denso race plugs which wouldn't cold starts

You're dreaming its not out of puff & i don't know how you're jumping to that conclusion?! As history repeats you can bet these blokes haven't done their job properly AGAIN! Odds are the boost control hasn't been played with properly or they have piss weak springs in the wastegates. But falling on its ass like that at 5500 isn't showing the 6262 being all in IMO pretty sure itd taper off more gradually then just drop off the planet like that. It is a 705hp turbo FFS and hes using over 500 of it currently.

Maybe, would be pretty disappointed if the workshop didn't sort that out.

And boost can drop like that if the the rear is beyond its VE especially if manifold pressures were to rise and this would obviously crack open the gate amongst other things. I still think the .82/62 rear is way too small for a 3.2.

Pete, seriously....Don't worry about all this response rubbish, just go and buy yourself a GT42 and be done with it. Rev the f@$king thing past 3000 and be happy with the face stretch when it comes on. Been done hundreds of times before and it just works.

  • Like 1

Fair enough.

Now, I need availability near my work or home.....

or, stick with 98.

I know what you mean, I would have to drive about 200Klm to get it and it would be just about 3/4 empty when I got home.

Different deal if you are doing something special with it, fill a few cans. Thats were the flex fuel sensor will come in, use it when it suites you :yes:

I so agree

Maybe, would be pretty disappointed if the workshop didn't sort that out.
And boost can drop like that if the the rear is beyond its VE especially if manifold pressures were to rise and this would obviously crack open the gate amongst other things. I still think the .82/62 rear is way too small for a 3.2.
Pete, seriously....Don't worry about all this response rubbish, just go and buy yourself a GT42 and be done with it. Rev the f@$king thing past 3000 and be happy with the face stretch when it comes on. Been done hundreds of times before and it just works.

I so agree

Pete, seriously....Don't worry about all this response rubbish, just go and buy yourself a GT42 and be done with it. Rev the f@$king thing past 3000 and be happy with the face stretch when it comes on. Been done hundreds of times before and it just works.

No worries mate, all good.

Had a 80klm drive this morning to get the cobwebs out, good stuff!

Take car to Jez

End thread

Yep well this thread will only ever be more supposition until the car goes to another dyno to find out what is really going on. At least if it goes to DVS Performance he can read some of the history behind it here.

Yep well this thread will only ever be more supposition until the car goes to another dyno to find out what is really going on. At least if it goes to DVS Performance he can read some of the history behind it here.

SORRY, it cannot be over until the " Final Tune " after this 3.2 build is finished, so hopefully, very soon :)

Probably will not be too much KW difference but might change were it starts kicking in ?

And boost can drop like that if the the rear is beyond its VE especially if manifold pressures were to rise and this would obviously crack open the gate amongst other things. I still think the .82/62 rear is way too small for a 3.2.

Pete, seriously....Don't worry about all this response rubbish, just go and buy yourself a GT42 and be done with it. Rev the f@$king thing past 3000 and be happy with the face stretch when it comes on. Been done hundreds of times before and it just works.

Never heard of an external wastegate opening due to exhaust pressure tbh, I'd consider it a design issue if it did - by function definition they are meant to block any flow until the reference pressures met targets - especially if it had both ports utilised.

In regards to VE dropping, that's just going to mean boost pressure will go up for a given airflow - the 62mm hot side is proven to flow much much more than Pete's setup is asking of it... so while I agree it's hotside is way too small for that setup (.8x twin scroll 62mm on a 3.2 - what the actual f**k? I didn't realise...) IMHO I think that explanation doesn't add up. In saying that, it's making good power and if Pete is happy with it then really all that really seems to be needed is making sure the mechanical and tune situation is on point and enjoy.

Things don't seem to be necessarily optimal, but I'm not expecting to see miraculous improvements in power - perhaps some improvement in power delivery if it turns out the intake cam proves to be excessively retarded in practice.

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

    • I had 3 counts over the last couple of weeks once where i got stranded at a jdm paint yard booking in some work. 2nd time was moving the car into the drive way for the inspection and the 3rd was during the inspection for the co2 leak test. Fix: 1st, car off for a hour and half disconnected battery 10mins 4th try car started 2nd, 5th try started 3rd, countless time starting disconnected battery dude was under the hood listening to the starting sequence fuel pump ect.   
    • This. As for your options - I suggest remote mounting the Nissan sensor further away on a length of steel tube. That tube to have a loop in it to handle vibration, etc etc. You will need to either put a tee and a bleed fitting near the sensor, or crack the fitting at the sensor to bleed it full of oil when you first set it up, otherwise you won't get the line filled. But this is a small problem. Just needs enough access to get it done.
    • The time is always correct. Only the date is wrong. It currently thinks it is January 19. Tomorrow it will say it is January 20. The date and time are ( should be ! ) retrieved from the GPS navigation system.
    • Buy yourself a set of easy outs. See if they will get a good bite in and unthread it.   Very very lucky the whole sender didn't let go while on the track and cost you a motor!
    • Well GTSBoy, prepare yourself further. I did a track day with 1/2 a day prep on Friday, inpromptu. The good news is that I got home, and didn't drive the car into a wall. Everything seemed mostly okay. The car was even a little faster than it was last time. I also got to get some good datalog data too. I also noticed a tiny bit of knock which was (luckily?) recorded. All I know is the knock sensors got recalibrated.... and are notorious for false knock. So I don't know if they are too sensitive, not sensitive enough... or some other third option. But I reduced timing anyway. It wasn't every pull through the session either. Think along the lines of -1 degree of timing for say, three instances while at the top of 4th in a 20 minute all-hot-lap session. Unfortunately at the end of session 2... I noticed a little oil. I borrowed some jack stands and a jack and took a look under there, but as is often the case, messing around with it kinda half cleaned it up, it was not conclusive where it was coming from. I decided to give it another go and see how it was. The amount of oil was maybe one/two small drops. I did another 20 minute session and car went well, and I was just starting to get into it and not be terrified of driving on track. I pulled over and checked in the pits and saw this: This is where I called it, packed up and went home as I live ~20 min from the track with a VERY VERY CLOSE EYE on Oil Pressure on the way home. The volume wasn't much but you never know. I checked it today when I had my own space/tools/time to find out what was going on, wanted to clean it up, run the car and see if any of the fittings from around the oil filter were causing it. I have like.. 5 fittings there, so I suspected one was (hopefully?) the culprit. It became immediately apparent as soon as I looked around more closely. 795d266d-a034-4b8c-89c9-d83860f5d00a.mp4       This is the R34 GTT oil sender connected via an adapter to an oil cooler block I have installed which runs AN lines to my cooler (and back). There's also an oil temp sensor on top.  Just after that video, I attempted to unthread the sensor to see if it's loose/worn and it disintegrated in my hand. So yes. I am glad I noticed that oil because it would appear that complete and utter catastrophic engine failure was about 1 second of engine runtime away. I did try to drill the fitting out, and only succeeded in drilling the middle hole much larger and now there's a... smooth hole in there with what looks like a damn sleeve still incredibly tight in there. Not really sure how to proceed from here. My options: 1) Find someone who can remove the stuck fitting, and use a steel adapter so it won't fatigue? (Female BSPT for the R34 sender to 1/8NPT male - HARD to find). IF it isn't possible to remove - Buy a new block ($320) and have someone tap a new 1/8NPT in the top of it ($????) and hope the steel adapter works better. 2) Buy a new block and give up on the OEM pressure sender for the dash entirely, and use the supplied 1/8 NPT for the oil temp sender. Having the oil pressure read 0 in the dash with the warning lamp will give me a lot of anxiety driving around. I do have the actual GM sensor/sender working, but it needs OBD2 as a gauge. If I'm datalogging I don't actually have a readout of what the gauge is currently displaying. 3) Other? Find a new location for the OEM sender? Though I don't know of anywhere that will work. I also don't know if a steel adapter is actually functionally smart here. It's clearly leveraged itself through vibration of the motor and snapped in half. This doesn't seem like a setup a smart person would replicate given the weight of the OEM sender. Still pretty happy being lucky for once and seeing this at the absolute last moment before bye bye motor in a big way, even if an adapter is apparently 6 weeks+ delivery and I have no way to free the current stuck/potentially destroyed threads in the current oil block.
×
×
  • Create New...