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Rashmin Peiris
Tinkerer NSW N/A
Posts: 29 Reg: 11-2007
| Hi I went to dyno day today, and only got one run on the machine because they said it was 'pinging' at high revs. First of all, I have no idea what that means, and second of all, he mentioned that it'd probably be an ignition timing problem- what exactly is that? So I was a bit disappointed, because I didn't get to see my car pushed to the max cheers to anyone that can help me |
Charlie Ters
TryHard nsw TT gone single
Posts: 270 Reg: 01-2007
| what fuel do you run in there? 98 octane? (although this doesnt necessarly fix the problem, fuel can be the difference at times) |
Rashmin Peiris
Tinkerer NSW N/A
Posts: 30 Reg: 11-2007
| I run 98 when I can, but if not I run 96. Is there much of a difference between those 2? |
Matthew Sharpe
Goo Roo North Island JZZ31
Posts: 3490 Reg: 10-2005
| Pointless running 98 octane in a 2JZ-GE. If your car is pinging on 95, there is probably something wrong with it. I doubt its the ignition timing though, I'd start by replacing the spark plugs. Why are you bothering to dyno a JZZ31 though? Seems a waste of money to me. |
Daniel Clarke
Goo Roo NSW TT 2.5L 6 cylinder
Posts: 3376 Reg: 03-2006
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Matthew Sharpe wrote on Monday, April 28, 2008 - 06:07 am:Why are you bothering to dyno a JZZ31 though? Seems a waste of money to me.
Because he is on his P Plates and is restricted to a non turbo and it is his pride and Joy and wants to enjoy it like every one else and see what it puts out and also wanted to see if it was running the way it should? PLUS he brought it to the club dyno day we held on Saturday night ??? And it seems it may be in need of a tune up??? Sounds like good reasons to me! Seriously man, id expect to hear that kind of statement from some wanker on the nissan forums, NOt a long standing member of the Soarer community! |
Mike Beck
Goo Roo New Zealand Soarer JZZ31 I6
Posts: 1990 Reg: 11-2005
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Matthew Sharpe wrote on Monday, April 28, 2008 - 06:07 am:Why are you bothering to dyno a JZZ31 though? Seems a waste of money to me.
Hahaha! I would agree also. Daniel does have a point but even still... I'm only going to have my JZZ31 put on the dyno when its running supercharged, Rather than seeing a sad 110-120rwkw for a rather heavy car in NA form. Would be MUCH better to see some results when its a LEAST 35% more powerful than factory. Im guessing Some where around 150rwkw would be a easy mark to beat! Will find out at supra Fest when Its goes on the Dyno/Drags. Exciting! |
Evan Kaio
TryHard Wellington '91 UZZ31
Posts: 110 Reg: 01-2007
| When is SupraFest Mike? |
Mike Beck
Goo Roo New Zealand Soarer JZZ31 I6
Posts: 1992 Reg: 11-2005
| 31st May - 2nd June |
Charlie Ters
TryHard nsw TT gone single
Posts: 271 Reg: 01-2007
| why modify, then dyno?.... i regret never dynoing my car before i started modifying it,as it always allows you to see what parts fitted actually make a difference?... not just slap everything together.... make XXX.kw only to not know your pod filter etc, actually is loosing you power (like in my case ) (i bet you it will take me till at least 90kmh to pass your car in a race anyways ) also, im pretty sure you would line up more then just soarers out there.... so you can benchmark your car against commdores, 2j N/A supras etc..... instead of being a textbook warrior relying on stats |
Mike Beck
Goo Roo New Zealand Soarer JZZ31 I6
Posts: 1993 Reg: 11-2005
| Right Well Ive seen what these cars put out factory, also NA Auto Supra's which are the same deal pump out around 115rwkw stock and run 16 second plus 1/4 miles. My soarer ran 4x 16 sec 1/4 miles how it is so theoretically it would have around ~115rwkw or so for this to do a 16 second 1/4. So from there you can work out roughly where the power at the wheels would be. Id much rather see a higher result on the dyno after installing something that gives a decent power/torque increase which in my case an intercooled s/c setup with a decent full exhaust and intake system etc. Its just a waste of money other wise finding out something I already would have known, thats more embarrassing than anything. |
Anuradha Vithanage
TryHard NSW 2JZ-GTE
Posts: 105 Reg: 03-2007
| Well Rashmin's pulled out 127.5kw from memory I think even with this problem. The only mod to his car is the BFI and i know cause i did it for him |
Rashmin Peiris
Tinkerer NSW N/A
Posts: 31 Reg: 11-2007
| I'm with Charlie here, and thanks for the support Daniel I really think it's good to get an idea of the power output before making any mods, because otherwise I wouldn't know if I got my money's worth with the mods when I do make them. Good to have a comparison if you ask me, makes it more worthwhile and satisfying. P.S. dyno day was a good day out anyhow |
Dave Billings
Goo Roo Louisiana SC 300, 2JZE, 5 Speed
Posts: 1422 Reg: 06-2007
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Matthew Sharpe wrote on Monday, April 28, 2008 - 06:07 am:Pointless running 98 octane in a 2JZ-GE. If your car is pinging on 95, there is probably something wrong with it.
Really? My SC clearly states that I need to run premium petrol, but i hate the premium price. At the moment premium fuel is $3.75 a gallon and regular is $3.45. I'd love to save about 6 bucks every fill up! What harm can be done if I switch to a lower octane? |
James Harris
Goo Roo IRAQ XTR T-66
Posts: 1400 Reg: 07-2005
| oh boo hooo.... 3.75 a GALLON for premium ! So you pay about 82c a litre I dont even wanna hear your story Dave bloody seppos... hehehe |
Joshua Rao
DieHard WA JZZ30 vvti GT-L & JZZ31(For Sale)
Posts: 553 Reg: 09-2006
| If I payed 82c a litre I would drive to my letterbox and hit speedcut everywhere.... for fun. Wouldn't need a hyundai excel In Perth we are paying around $1.25US? $1.50AUD a litre. Why? |
Mike Beck
Goo Roo New Zealand Soarer JZZ31 I6
Posts: 1996 Reg: 11-2005
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James Harris wrote on Tuesday, April 29, 2008 - 02:09 am:oh boo hooo.... 3.75 a GALLON for premium ! So you pay about 82c a litre I dont even wanna hear your story Dave
Hahaha. Has increased a lot lately though, was amazingly cheap a few years ago. |
Dave Billings
Goo Roo Louisiana SC 300, 2JZE, 5 Speed
Posts: 1423 Reg: 06-2007
| Sorry mates for your costs...but still, what damage can be done if I switch from premium to regular and would it be worth my time, if I have always run premium, to switch? I don't want to fix something that's not broken, that's all. |
Peter Nitschke
JunkFilterer South Australia UZZ30 UZZ31
Posts: 9199 Reg: 11-2004
| Shouldn't be any damage, as the ECU should adjust the timing to cope. However, it's been suggested that the trade off in term's of power, efficiency and keeping the engine clean may make it false economy. Keep in mind too, that premium in Japan is 100 RON, so your premium (if it's like ours) is already a bit behind the recommendation. |
Peter Nitschke
JunkFilterer South Australia UZZ30 UZZ31
Posts: 9200 Reg: 11-2004
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Joshua Rao wrote on Tuesday, April 29, 2008 - 04:22 am:In Perth we are paying around $1.25US? $1.50AUD a litre. Why?
Because you have the marvellous Fool Watch (fuel watch) system that will save the nation and lower fuel prices nationally by 2 cents a litre! Seeing as WA petrol prices are generally a bit higher than most other states, I don't see how they can claim it's working well. |
James Harris
Goo Roo IRAQ XTR T-66
Posts: 1404 Reg: 07-2005
| i would be VERY surprised if you noticed ANY difference.... you MAY drop a few KMS or should i say MILES/ tank but yeh.. hard to say. If you wanna save 6 bucks every now and then... just run regular and then every few tanks put some premium through your car. But why tempt fate for only 6 bucks a week hey? |
Matthew Sharpe
Goo Roo North Island JZZ31
Posts: 3494 Reg: 10-2005
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Daniel Clarke wrote on Monday, April 28, 2008 - 07:59 am:Seriously man, id expect to hear that kind of statement from some wanker on the nissan forums, NOt a long standing member of the Soarer community!
Chill out bro, its just an opinion. Let me explain, to me a dyno is a tuning tool, and you can't tune a stock JZZ31. Running a dyno costs what, anywhere from $120 + ? I just think that money would be better spent on servicing stuff that does affect performance, like a new set of plugs, or HT leads, air filter etc. If your cars not modified and not running right you can usually tell without resorting to a dyno (see Mike's comments about his 1/4's for example) I wasn't trying to make him feel bad, just giving him some advice. He can take it or leave it and think I'm a twat if he wants. Also I didn't know it was a gathering, which kinda makes it a bit different than just taking your car down to strap it to the dyno. |
Dave Billings
Goo Roo Louisiana SC 300, 2JZE, 5 Speed
Posts: 1424 Reg: 06-2007
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James Harris wrote on Tuesday, April 29, 2008 - 05:52 am:But why tempt fate for only 6 bucks a week hey?
You may be exactly right on!!! Why invite a new problem for meerly $6 in savings...could end up costing me more in the long run. Thanks for your opinions! (I was always curious about that) |
Rashmin Peiris
Tinkerer NSW N/A
Posts: 32 Reg: 11-2007
| By the way guys, I think you all missed one of my initial questions, what's 'pinging'? and how would I know how to tell if its happening? |
Gavin Smith
Tinkerer Victoria 2.4 TD
Posts: 67 Reg: 01-2008
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Rashmin Peiris wrote on Tuesday, April 29, 2008 - 07:55 am:By the way guys, I think you all missed one of my initial questions, what's 'pinging'? and how would I know how to tell if its happening?
Dunno In relation to the fuel price debate: The price of a barrel of Crude oil has gone up, yes? (Sorry bout this Dave) Unlike what all those fools on the news tell you on free to air (watch a proper finance show), the Australian dollar has NOT grown as much as we are lead to believe, but the world has FINALLY noticed that the good ol' U S of A is NOT the biggest, greatest, strongest economy in the world anymore, and hasn't been for nearly 5 years. That honour now belongs to China, with India a close second (this is in terms of growth etc, not GDP). Why is this relevant? Well, the price of oil per barrel has inflated by a pretty set margin, but at the same time the US dollar has LOST it's value at approx the same rate, therefore, our price for petrol SHOULD NOT have risen like it has, it should still cost approx $1.20 per litre as the price it costs us is outweighed by our dollar value against the green-back. Just another example of oil companies butt-f***ing the Australian government because they're all too dense to admit that a communist nation with shocking human rights, runs the world's economies. I'll also bet that the huge new oil and gas deposit (so huge it can last us for another 150yrs) found as part of our new, re-zoned continental shelf, will not be publicised in plain sight, just so we get raped at the petrol pump. |
Miles Baker
Goo Roo Vic 66 Mustang GT Convertible, 55 Chevy Bel Air, 69 Firebird 455, 73 Corvette 4sp T-Tops
Posts: 1267 Reg: 08-2005
| Wow.. first time I have ever seen someone judge the size of an economy not by its size. Good one. Last year the IMF listed the following: 1 United States $13.84 Trillion 2 Japan 4.38 3 Germany 3.32 4 China 3.25 Or is your argument that the biggest should be measured by growth, not size? Growth: 1 Azerbaijan 31.00% 2007 est. 2 Timor-Leste 24.00% 2007 est. 3 Macau 16.60% 2005 4 Angola 16.30% 2007 est. 5 Armenia 13.70% 2007 est. 6 Sudan 12.80% 2007 est. 7 Equatorial Guinea 12.70% 2007 est. 8 Georgia 12.00% 2007 est. 9 China 11.40% 2007 est. Pretty stellar top 9 there. And ask yourself.. who buys the cheap goods that China makes? And another thing, our petrol prices are set by the price in SINGAPORE not in the US. And are you trying to argue that India has a stronger economy than the US, Germany or Japan? Pull your head out of your arse. China is a large economy, but it is dependant on many others and is nowhere near the size of the US. In addition their goods are, in very large part, low quality or not their own IP. They have massive looming internal problems with overpopulation, pollution, low quality health care, infrastructure and education. And a looming cultural revolution. Once that starts to happen, bye bye cheap factory worker slaves. The major competition to the US economy is currently the EU. China will go the way Japan did after the 50s and 60s, back when they used to use slave labour to produce low quality cheap goods. I think you are mistaking economic size for POPULATION size. And last year, both the Chinese and US economies grew by around $0.3T. With regards to the OP, check your ignition timing! |
Matthew Sharpe
Goo Roo North Island JZZ31
Posts: 3495 Reg: 10-2005
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Rashmin Peiris wrote on Tuesday, April 29, 2008 - 07:55 am:By the way guys, I think you all missed one of my initial questions, what's 'pinging'? and how would I know how to tell if its happening?
It means the air/fuel mixture is igniting too early in the cylinders, before the piston has reached the proper part of the cycle. It can normally be heard as a tinging noise from the engine when its under load. It can be caused by all number of things, including ignition timing that is too far advanced (this is electronically controlled in the Soarer, so fairly unlikely unless there is a serious electrical fault) running spark plugs that are too hot a grade or badly worn, carbon desposits, excessive compression, poor quality/stale/low octane fuel etc. |
Daniel Clarke
Goo Roo NSW TT 2.5L 6 cylinder
Posts: 3380 Reg: 03-2006
| No Probs Matthew.. But some people dont understand cars and Rashmin has probably been driving his car hard for who knows how long? Lucky he did put in on a dyno and was told it had an issue... Also, its much easier top diagnose problems on a dyno... Eliminates Speeding tickets, Road noise, allows the tuners to listen to noises vibrations whatever without the chances of a road accident So to me the $50 for 3 power runs and to see what kind of condition the car is in... Is cheap insurance . Much better than some of these guys who only " road " tune their cars with widebands, Going flat out in 3rd gear and reaching speeds of up to and possibly over 200km/h |
Dave Billings
Goo Roo Louisiana SC 300, 2JZE, 5 Speed
Posts: 1425 Reg: 06-2007
| Yeah, those Chinese and Indians sure like to f*ck!!! Miles!!! (can anybody say owned?) Gavin! |
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