| Author |
Message |
Hays Sleiman
TryHard
Victoria
UZZ31
Posts: 297
Reg: 11-2009
|
Allan, I'll ask Cihan for the next tune |
Scott Vim
DieHard
Vic
Soarer (1uz) Chaser (1jz)
Posts: 728
Reg: 12-2010
|
Cihan is back tuning? |
Hays Sleiman
TryHard
Victoria
UZZ31
Posts: 298
Reg: 11-2009
|
Yep, just started again. But I believe he might be still getting things setup so not sure about his availability just yet... |
Hays Sleiman
TryHard
Victoria
UZZ31
Posts: 299
Reg: 11-2009
|
Hey guys, thought I'd post here incase some of you missed it in the WTB section. I'm after a 95-97 ECU as my one is causing all kinds of faults. Part number is 89661-24430. If you have one or know someone who might, please pass it on. Would be much appreciated! Cheers |
Hays Sleiman
TryHard
Victoria
UZZ31
Posts: 316
Reg: 11-2009
|
UPDATE: Hey guys, just a short update. We managed to get around the ECU issues we've been having (for now) and push the car a bit further.
It is now sitting with 240rwkw on 6psi. Having fixed a misfire issue, we've been able to tune it to a much better and smoother run. The boost is starting at 2600rpm and the car kicks in LIKE CRAZY with about 180rwkw at about 3200rpm 
Max torque is 840nm at 3500rpm 
For all you late model v8 owners out there, it seems the stock AFM is good for up to 280rwkw give or take. I still have not needed to use a map sensor with the Emanage because the AFM is still far from maxing out. Seems alot stronger than previous models.
I've decided not to go any further until I do a shift kit at which point further results will be posted.
Here's a video of a quick run while it was on the dyno. It's not a long run or a decent video but it's something....Sounds a lot meaner in person though!
http://youtu.be/Qjp4i5ku4rs
On a side note, can anyone please tell me the functions of these two hoses? Thanks
|
Aaron Casey
Goo Roo
NSW
'94 2jz JZZ30 gttl, '93 UZZ31 track, VT, 2x Leyland Mini's
Posts: 3646
Reg: 08-2005
|
Awesome
The larger hose is idle air bypass to control air needed for idle. The smaller one goes to a vacuum pressure solenoid on your power steering so when your steering is in use it slightly idles up engine so the extra load doesnt affect idle speed as much and chance of stalling with loads on. |
Hays Sleiman
TryHard
Victoria
UZZ31
Posts: 317
Reg: 11-2009
|
Ah. All makes sense. Thanks Aaron |
Hays Sleiman
TryHard
Victoria
UZZ31
Posts: 345
Reg: 11-2009
|
UPDATE: Hey guys, haven't had time to keep this thread going but thought I'd throw in a quick update.
The car has now been tuned again and is running a super smooth 280rwkw @ 12psi with no issues whatsoever!
Cihan was also kind enough to do a stage 1.5 shift kit and it feels great. The difference was instantly noticeable and the climb through gears feel smooth and solid.
While I was worried about the rods, I had a talk to Peter Taplin and he was telling me he was almost sure the later model rods handle the power with no problems. I'd told him even though I'd "heard" they're known to fail, I'd never actually seen someone saying they'd blown their late model 1uz by pushing boost into it. And he was saying while they might be thinner, they're a newer design and he was sure they'd handle the power.
Turns out he was possibly right...I've been driving the car for a month and so far no issues. Hopefully it stays this way |
Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black!
Posts: 1406
Reg: 04-2006
|
Well done Hays!
It would be great to see some video |
Ross Pesina
DieHard
Vic
Soarer V8, Soarer T, Soarer TT, Supra TT.
Posts: 806
Reg: 08-2006
|
Interesting setup, I've just read the whole thing and as mentioned, its the first time ive seen it attempted in aus.
Much less lag than I would have expected for a rear mount.
If anything is going to fail its your transmission. Even TT autos with a 1.5 shift kit don't last long at anything over 250rwkw let alone a uzz31. Keep us posted. |
Dave Rose
Goo Roo
wa
UZZ31 / ML320 CDI
Posts: 2364
Reg: 03-2007
|
Fantatic job Hays, looks like all the rods are thinner now in UZ2 and UZ3.
|
Allan Langford
Goo Roo
Vic
UZZ31
Posts: 1045
Reg: 05-2010
|
Glad someone else is testing later rod limits, I left mine at 7psi 215rwkw to be safe.
Powdered metal rods don't bend they just let go, that is the problem  |
Dave Rose
Goo Roo
wa
UZZ31 / ML320 CDI
Posts: 2365
Reg: 03-2007
|
It does happen
 |
Paul Drane
Goo Roo
QLD
V8 Limited
Posts: 1346
Reg: 07-2005
|
does happen, these pics are from a 97 V8 that had a blower fitted.
|
Damon Cornish
Tinkerer
Qld
V8
Posts: 32
Reg: 03-2009
|
I'm not sure how to load photos but I have a 92 block with a few holes in it as well. @12psi |
Mario Lentini
TryHard
Queensland
UZZ32 V8
Posts: 312
Reg: 07-2005
|
Looks good Hays .
I think it was around August 1994 when they went to the smaller lighter rods , I have November 1994 and it had the smaller rods in it . |
Hays Sleiman
TryHard
Victoria
UZZ31
Posts: 368
Reg: 11-2009
|
Well all that shut me up haha
And thanks Mario |
Jeff Bedsor
Goo Roo
QLD
TT
Posts: 1214
Reg: 10-2006
|
Ross Pesina wrote on Wednesday, October 30, 2013 - 06:56 pm:en TT autos with a 1.5 shift kit don't last long at anything over 250rwkw let alone a uzz31.
Rubbish, been racing mines with 265 + rwkw for the last 6 years with a shift kit and the auto hasn't missed a beat. |
Allan Langford
Goo Roo
Vic
UZZ31
Posts: 1189
Reg: 05-2010
|
any updates on this? |
Hays Sleiman
TryHard
Victoria
[2009-2010] 97 UZZ31 [2010-2011] 91 UZZ31 [2010-2012] 96 JZZ31 [2012-Present] 97 UZZ31
Posts: 400
Reg: 11-2009
|
Hey Allan,
Sorry, the project kinda dropped off the to do list this year as I have a new job that's keeping me quite busy.
After the last tune at 300, we've basically only had one issue that's lasted ages. Oil leaking in to the turbo and blowing out smoke through the muffler and pushing oil down the intake to the front of the car.
Even though we've already had a .9mm restrictor in line, we suspected there was still too much oil pressure. It was either that or the turbo seals were gone. After talking to a turbo builder we know though, he kept assuring us it takes much more than that to ruin the seals so it was definitely an oil drainage issue.
We ended up putting another .9mm oil restrictor in-line to see if that would help, but after only driving it for 15 minutes and checking, we found oil again in the intercooler and all the way up to where the AFM is.
By this point, we were going crazy. So the next thing we suspected was that the drainage was too high and the oil wasn't getting to the pump to push it back to the engine. So we moved the pump to under the car, (It is covered and hidden away) and now the drainage hose from the turbo to the pump was on a constant decline. This sort of helped a bit as it took a lot longer before the oil got in to the turbo but the issue was technically still there.
Long story short, Scotty started thinking about it and figured out that it was possible, the oil in the return hose after the pump (that hadn't reached the engine yet) was rolling back after then car was turned off. As the turbo is much lower than the spot where the oil is returned on the engine, it was running back to the turbo building inside of it and slowly leaking out the seals overnight. Then when the car was started again, the oil was pushed up the intake piping.
To fix this, we just put a one-way valve on the return hose after the pump so oil could only flow in one direction. This help a lot but the issue still happened. just a lot less. Anyway, we realised the same thing was happening on the feed line. When the engine was switched off, all the oil that was still in the hose was running down to the turbo, building up inside of it and so on. So we put another one-way valve on the feed line so that it would crack open and let oil through only when there was enough pressure (aka. when the engine is on) and when the car goes off, all is good. This was only about three weeks ago.
Since then, we've had no oil issues, leaks, smells or smoke. Thankfully, it's all good and I've been driving it with no issues at all. I've gone ahead and gotten a wideband with a gauge and installed it, so the next step is to get Cihan to give it a road tune when he's free and hopefully, the beast will awaken after that lol. We want to retune it as it's running a beat laggy and we suspect there was a fair bit of oil in the intake last time it was tuned.
So that's where it's up to
In the mean time, I'm working with Scotty to come up with something to get rid of the low-fuel bong I get on Ethanol... |
David Barnes
DieHard
Qld
Celsior V8, TT Z30, 1JZ Z20
Posts: 730
Reg: 06-2008
|
Hi Hays,
Are you running any form of off delay timer on the scavenge pump? An old turbo timer works well. You may also need form of pre-start priming system aswell, so the pump is activated before you start the engine.
Another idea I have for you is similar to what you see on your washing machines water outlet, it would require the return pipe to go up inside the boot to a point higher then the sump level then down and into the turbo. The pump should be able to draw the oil up and over it when required. This could also work in the engine bay but would definetly require an off delay timer.
Tho provided you got your spring size correct on the check valve drain back should be gone.
Btw Thanks for the reply email to my questions regarding your setup. I have done all my shopping and have also got a gt35 however with the .68 housing and 50mm wastegate to increase response.
I will write back and let you know how I am sailing and form a few more questions.
Thanks
Dave |
David Barnes
DieHard
Qld
Celsior V8, TT Z30, 1JZ Z20
Posts: 731
Reg: 06-2008
|
Oh im a doofus, I never read the end of your post where you stated that you sorted the issue indefinitely. I just got all excited with ideas and started typing haha. |
Hays Sleiman
TryHard
Victoria
[2009-2010] 97 UZZ31 [2010-2011] 91 UZZ31 [2010-2012] 96 JZZ31 [2012-Present] 97 UZZ31
Posts: 401
Reg: 11-2009
|
No problem David. Thanks for the suggestions. It might still come in handy as I'm starting to smell oil again but there are no leaks in the boot as before so it might just be some of the old oil sitting in the muffler...Anyway, do let me know how yours goes and make sure you post a heap of photos! |
David Barnes
DieHard
Qld
Celsior V8, TT Z30, 1JZ Z20
Posts: 734
Reg: 06-2008
|
No worries. After thinking more about my idea of the hydro lock bend would have to happen post pump (pressure to scavenge side). If you dont have an off delay timer on the scavenge pump id highly suggest trying it. You can simulate this yourself wiyh out the investment of a delay timer to determine if it would work. Im not sure on your practical skills or electrical know how and I do intend to be condescending however if you need any advise please ask me. I am an automation electrician and a engineer so this sort of stuff is my play ground.
Glad to assist.
Dave. |
Hays Sleiman
TryHard
Victoria
[2009-2010] 97 UZZ31 [2010-2011] 91 UZZ31 [2010-2012] 96 JZZ31 [2012-Present] 97 UZZ31
Posts: 402
Reg: 11-2009
|
Scrap that David...oil still leaking 
We've ruled everything out, so we're sure the turbo seals are damaged! Luckily, a mate of mine had a bush core 35 lying around so I'm swapping the cores out, removing all the oil restrictors and seeing how it goes...sigh. |
Allan Langford
Goo Roo
Vic
UZZ31
Posts: 1201
Reg: 05-2010
|
does the scavenge pump keep running for a little while after shut down? |
Hays Sleiman
TryHard
Victoria
[2009-2010] 97 UZZ31 [2010-2011] 91 UZZ31 [2010-2012] 96 JZZ31 [2012-Present] 97 UZZ31
Posts: 403
Reg: 11-2009
|
Hey Allan, no it doesn't but the pump sits after a reservoir tank so any oil in the turbo after shut down should basically roll out of the turbo drain in to the tank. |
Allan Langford
Goo Roo
Vic
UZZ31
Posts: 1202
Reg: 05-2010
|
try keeping the pump running for a minute or so after shut down, also with the reservoir tank does it have a breather on it? |
Hays Sleiman
TryHard
Victoria
[2009-2010] 97 UZZ31 [2010-2011] 91 UZZ31 [2010-2012] 96 JZZ31 [2012-Present] 97 UZZ31
Posts: 404
Reg: 11-2009
|
Yep. How would I keep the pump running after the car is off? Would it matter now as the turbo is bush core? |
Allan Langford
Goo Roo
Vic
UZZ31
Posts: 1203
Reg: 05-2010
|
ebay should have something cheap or an old turbo timer would work.
I don't think bush or BB will make any difference |
Daniel Clarke
Goo Roo
NSW
TT 2.5L 6 cylinder
Posts: 7574
Reg: 03-2006
|
Ball bearing vs bush just means , Bush bearing requires more oil feed . |
Hays Sleiman
TryHard
Victoria
[2009-2010] 97 UZZ31 [2010-2011] 91 UZZ31 [2010-2012] 96 JZZ31 [2012-Present] 97 UZZ31
Posts: 405
Reg: 11-2009
|
Allan, that's what I first though but I've been driving the car now for a week with the new core and there's been no leaks whatsoever. It's simply handling the oil pressure a lot better...The rest of the setup is the same.
I'll keep this post updated if something turns up. |
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