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VL Commodore

remapping Standard ECU

Started by poohkies · 4 Oct 2006 · 147 replies

Preserved from CalaisTurbo (partial recovery). Original authors and dates are shown; archived members are not current Holdcom accounts.

no-doseArchived member
Hey just one thing i'd point out and no doubt everyone already realises this. But if your getting 300kw, your not going to be running a stock turbo which is going to get you hassles with the police. So its not like changing to a stock remapped computer will avoid this when your pulled over by the police. Seems a good idea though just on the performance alone
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genkiArchived member
some ecu's are allowed to be used on the road tho???
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PHSArchived member
^^^^ only std ones meaning only the factory fitted unit.
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GMFA18Archived member
Sometimes its not always about cost, i bought my wolf cos it was a plug in. If motec made a vl plug-in i'd pay $2000 for it. Why change stuff for no reason? You may say the factory computer is too dodgey on a high hp motor running 10's,9's etc. But at the end of the day no one questions joe bloes Holley double pumper on his 9second torana?? There's no reason why the factory vl computer couldn't be retuned to break records...
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gmchaserArchived member
i got my car tunned on drdrift(sam's) dyno but not by sam. my car was getting tunned be a someone who uses his dyno for tunning microtech's. i was speaking to sam and hes seems to know quite a bit about tunning he said he gets good power figures out standard nissan ecu's. personaly i'd go a microtech lt8 you can get them fitted and tuned 4 around $1500.
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mild25/30Archived member
A computer can only ever work with information that is 'Pre Programmed'. That is to say if you can wind up the boost on a factory ecu from say 6psi up to 12psi with no other mods at all (i.e. no fuel pressure trickery/dodgery), then that self same computer had a 'map' programmed up to at least 12psi from the factory. If the factory ECU can be reprogrammed with a map up to say 25psi then it would be exactly the same as say a motec with a 25psi tune in it. You could simply turn the boost control down to 10psi or whatever your preference was cos the computer already knows what to do with it. You can NEVER up the boost higher than what a computer is mapped for without expecting trouble! As others have said you couldnt have a touchpad change of engine tune for raceday etc, but the budget concious probably arnt going to pay for C16 either! My own personal experience asks just how reliable is the 20 year old factory ecu? I come from the perspective of an electronics technician, and all PWB's and components have a lifespan (these days about 5 years to the day if the item is over $2000, 3 years if the purchase price is less)! I am currently on my 4th N/A VL ecu in 3 years. 2 of those ecu's were reconditioned units. My parents had a VL years ago which also had 2 computers go in the time they had it. Is the standard turbo ecu still a viable proposition for reliability 20 years on? Just my 2 cents worth... Some original photos have not been recovered yet.
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genkiArchived member
^^^^ i see people mentioning price..... at first i was just gonna get a microtech installation... for around $1900, then in the end went for a motec for like $1800....... its less than 1k more... and its for something thats 'regarded' as "the best". if u've spent over 10k on something... plus some more, i cant see how 900 dollars is gonna hurt the bank/wallet.. ;/
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ijdArchived member
http://jimwolftechnology.com/wolfpdf...%20UPGRADE.PDF (http://jimwolftechnology.com/wolfpdf/280%20Z31%20450HP%20UPGRADE.PDF) Its not VL related but Z31. Very similar to a Rb30. I've been looking up alot of information up on Z31's and this seems to be a very popular in the US. It just modifies the factory computer to run 420cc injectors and a larger AFM. I haven't read anything bad about it.
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13FLATArchived member
My friend has a DrDrift remapped ecu in his sil remapped to run gtr injectors and I am pretty sure that they tuned it to about 18 psi and then turned it down to 14 came back to Townsville and they ran it up the afrs were perfect on the money but the car made 10 kw less at the wheels on 4 psi more boost than it did with the std injectors and ecu why waste your time and money on a gay bar std ecu when you could get a plug in and go fast ! AFM's are always going to cause you hastles! What happens when you move or you sell the car it limits the people that can work on the car it just isn't a good idea I don't think if you want to make a limited gain go for it but if you want to make big gains and be able to constantly retune and refine your tune go after market
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YEP_boostArchived member
Quote: Originally Posted by 575hpi My friend has a DrDrift remapped ecu in his sil remapped to run gtr injectors and I am pretty sure that they tuned it to about 18 psi and then turned it down to 14 came back to Townsville and they ran it up the afrs were perfect on the money but the car made 10 kw less at the wheels on 4 psi more boost than it did with the std injectors and ecu why waste your time and money on a gay bar std ecu when you could get a plug in and go fast ! AFM's are always going to cause you hastles! What happens when you move or you sell the car it limits the people that can work on the car it just isn't a good idea I don't think if you want to make a limited gain go for it but if you want to make big gains and be able to constantly retune and refine your tune go after market If the afr is perfect then how can it make less power? May be more of a dyno discrepancy than state of tune!
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poohkiesArchived member
gonna say that put it down the 1/4 and see what happens also how hot where the days and where's the 2 dyno sheet's to see what' the difference is i can't see how it can have bigger injectors and more boost and run less power than standard, just doesn't make sense!
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YEP_boostArchived member
Unless it has Fark all ignition in it but then the injectors would be that low on duty cycle and it would run like a pig and the afr wouldn't be clean it would jump up and down! I think you guys have to much sh*t forced into your ears by some of these shops. The reason very few people run Kalmaker software or eprom burners is the price of the unit. A workshop makes more off an aftermarket ecu and wire up with a quick base map tune slightly altered!
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PISTVLArchived member
yer studd dyno's take down the quarter ! i to think ppl have been brain washed by workshops !
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.lozArchived member
same, im very interested in these chips. i dont care what people say about the cops, id rather have the bigger turbo and stock ecu as it would be alot easier to just unbolt the big turbo and bolt on the standard one back one, rather than having to do all the wiring of the ecu.
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RB30-POWERArchived member
thats the great thing about the vl link ecu board, it goes into the factory ecu case, who is to know any better whats inside...
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poohkiesArchived member
same with this one, pretty much other than havinga huge turbo or even if u gt it mounted on the standard stuff, you running pretty much the standard everything other thatn ecu and injectors and turbo, plog opens bonnet and none the wiser! as soon as i sort my car out peoples and sam is back up here, i will see how well he can do it, or if anyone else is interested in this, look at the link at the start of the page! very intersting what they can do with this ecu!
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CJWArchived member
Anymore news on this, anyone running a Nistune board yet? I'm currently weighing up aftermarket ecu/Nistune. Would be great to hear some opinions from anyone running a Nistune setup.
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YEP_boostArchived member
Yes I have loooked into this a fair bit with a Tuner friend of mine and from what we can gather it is great if you want to retain a fairly std car. The problem is no one has done big hp VL with one as yet. No one can tell you how far the AFM is capable but yes you can fit bigger low impedance injectors and cams and turbo's and the like. You can alter the ignition and fuel mapped in a 16 x 16 plot so it is basically mapping the same as an early microtech/ems/wolf and the like. Cold start can be altered as well as your closed loop circuit within the fuel map. So yes it is fairly adjustable but a lot depends on the AFM and how far it can be taken without upgrading it to a Z32. In saying that the Skylines running these boards are doing quite well on std componentry!
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CJWArchived member
Yeah that's it. I'm not after huge power, say 250rwkw, and I reckon the standard AFM would support around that, particularly plumbed in the after cooler in the intake. There are some pretty good features like the logging and wideband support which makes it pretty easy to tune on the street. Also, retaining fuel economy (when driven accordingly) is a bit of a goal of mine (lol). Aftermarket ecu's that have sequential inj and closed loop trim (fuel econ advantages) are getting up there in price for someone like me who's only after a modest power upgrade to what is a daily driven car. Then there's the defect issue with aftermarket ecus. Might just take the plunge, what's $400 when modifying a car anyway Some original photos have not been recovered yet.
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YEP_boostArchived member
Yeah it is still finding a tuner to do it for you willing to learn the software and programing. We had a doner car here we were going to fit one too as a test on behalf of this tuner so we could find out as much as we could about it in a std form of tune. But plans have changed for other reasons and commitments so we are not at this stage going ahead with it. On saying that the software is easy to use and a lot of Yanks have been doing very well tuning early 80's turbo Z cars with the same software with some guys running as low as mid 11's tuned by themselves on the street.
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