Unichip - any good?
27 July 2001, 02:35 PM
#61
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Adam>> Yep, it's just a new chip for the ECU board. Plug'n'play...with more rows..I think it allows silly boost and warp speed revs (10.000).
I think it was somewhere around 250 NZD when I asked.
/J
I think it was somewhere around 250 NZD when I asked.
/J
28 July 2001, 12:37 AM
#62
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trout
god all that for 250NZ dollars :shocked: that is less than £100, could this be true. i take it you have one then. is it as easy to get to grips with as the original link.
one of the greats about the link is the fact that it has an easy interface.
god all that for 250NZ dollars :shocked: that is less than £100, could this be true. i take it you have one then. is it as easy to get to grips with as the original link.
one of the greats about the link is the fact that it has an easy interface.
28 July 2001, 06:38 AM
#63
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Sam,
there is a new Link chip coming out - Series Q - which is available for MY99 cars only, and is a replacement PossumLink chip on the same board.
This chip does offer better resolution and a significantly (greater than an order of magnitude) improved interpolation cycles.
The map is now made up of 200 zones, up from 96, however for a UK car this is actually 130 (up from 78) load sites in real terms.
One of the key advantages of this chip is that over 1.4 bar there are additional rows, this enables the advance to have a 'slope' as boost increases. On the current chip you are limited to a target value for anything over 1 bar.
The datalogging reflects this capability, so you can see actual advance at any point in time.
Sadly the Q chip does not offer all the advantages of the Link Plus - well I can't find them
- such as switchable water injection/spray, launch control, acceleration decay modes, etc, etc.
It does offer neat things such as switchable map sensor - standard to 3bar - which was a pain on the old Link architecture.
Mapping is now in absolutes rather than %ages - so fueling is 0-255 increments.
There are other dimensions - these are the key ones.
Cheers,
Trout
there is a new Link chip coming out - Series Q - which is available for MY99 cars only, and is a replacement PossumLink chip on the same board.
This chip does offer better resolution and a significantly (greater than an order of magnitude) improved interpolation cycles.
The map is now made up of 200 zones, up from 96, however for a UK car this is actually 130 (up from 78) load sites in real terms.
One of the key advantages of this chip is that over 1.4 bar there are additional rows, this enables the advance to have a 'slope' as boost increases. On the current chip you are limited to a target value for anything over 1 bar.
The datalogging reflects this capability, so you can see actual advance at any point in time.
Sadly the Q chip does not offer all the advantages of the Link Plus - well I can't find them
- such as switchable water injection/spray, launch control, acceleration decay modes, etc, etc.It does offer neat things such as switchable map sensor - standard to 3bar - which was a pain on the old Link architecture.
Mapping is now in absolutes rather than %ages - so fueling is 0-255 increments.
There are other dimensions - these are the key ones.
Cheers,
Trout
28 July 2001, 06:14 PM
#64
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I have to admit that I do have one - the car is a revelation compared to the old chip.
Noise is significantly reduced - more accurate and more importantly more consistent timing due to the better resolution and interpolation.
Boost control is excellent, but much harder to map for. Idle control uses a the correct stepper algorithm for a MY99 car.
The PC interface is good but comes with a VERY BIG HEALTH WARNING - it is possible to accidently overwrite the map with rubbish - I know I have done it - even locked myself out of the chip. For the majority the same rules apply - get yourself a good mapper - more dimensions just means more things to screw up if you get it wrong.
I still use the tuning module for day to day stuff. The best bit about the PC is the datalogging which can be programmed to capture up to 14 different bits of info - including things like real time advance.
Overall a very BIG step forward for Link - it was good before, and now it competes with the best. Not bad for a K-mart chip
If you want any more info - email me offline at rannoch1@hotmail.com.
Cheers,
Trout
Noise is significantly reduced - more accurate and more importantly more consistent timing due to the better resolution and interpolation.
Boost control is excellent, but much harder to map for. Idle control uses a the correct stepper algorithm for a MY99 car.
The PC interface is good but comes with a VERY BIG HEALTH WARNING - it is possible to accidently overwrite the map with rubbish - I know I have done it - even locked myself out of the chip. For the majority the same rules apply - get yourself a good mapper - more dimensions just means more things to screw up if you get it wrong.
I still use the tuning module for day to day stuff. The best bit about the PC is the datalogging which can be programmed to capture up to 14 different bits of info - including things like real time advance.
Overall a very BIG step forward for Link - it was good before, and now it competes with the best. Not bad for a K-mart chip
If you want any more info - email me offline at rannoch1@hotmail.com.
Cheers,
Trout
Seriously, the K-mart thing wasn't invented by me. It's just something that's been going round the tuning circle over here for a while.
29 July 2001, 07:26 PM
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Just out of interest there is a test run of a Link being set up by MRT and tested on a couple of rollers. Of course MRT aren't biased as they sell the Link, or anything like it.
But more food for thought and learning, with some good detailed data. (Warning this downloads a pdf so takes a couple of minutes on an ordinary modem)
But more food for thought and learning, with some good detailed data. (Warning this downloads a pdf so takes a couple of minutes on an ordinary modem)
30 July 2001, 02:07 PM
#72
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Hi,
How much boost is safe is determined by other factors too, like (1) your fuel delivery, which is dependent on your fuel pump and injector size; (2) the engine condition/design, if you have a closed-deck block, forged pistons, worked conrods, bearings etc, it stands to reason the engine has better tolerance of higher boost; (3) the turbo condition/design, some turbos like the IHI V-series for instance don't take too well to high boost while others like the standard MHIs are just asking for it; (3) what kind of climate is the car driven in, the cooler the less chance of knock; and (4) what octane gasoline is available, the higher the less chance of knock.
Take the combination of the above factors (and probably a couple more I missed), and the limit would be a collective handicap of all of them. A good tuner with a decent ECU should be able to map the fuel and ignition for any boost, taking into consideration all the limitations above of course.
How much boost is safe is determined by other factors too, like (1) your fuel delivery, which is dependent on your fuel pump and injector size; (2) the engine condition/design, if you have a closed-deck block, forged pistons, worked conrods, bearings etc, it stands to reason the engine has better tolerance of higher boost; (3) the turbo condition/design, some turbos like the IHI V-series for instance don't take too well to high boost while others like the standard MHIs are just asking for it; (3) what kind of climate is the car driven in, the cooler the less chance of knock; and (4) what octane gasoline is available, the higher the less chance of knock.
Take the combination of the above factors (and probably a couple more I missed), and the limit would be a collective handicap of all of them. A good tuner with a decent ECU should be able to map the fuel and ignition for any boost, taking into consideration all the limitations above of course.
30 July 2001, 06:31 PM
#74
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have to agree with Blow Dog on that 
,I looked into ecu upgrades and decided the same thing,you have to stop somewhere or you will end up pushing the envelope further and further,spending a fortune and never get anywhere near what you spent,back.
john
,I looked into ecu upgrades and decided the same thing,you have to stop somewhere or you will end up pushing the envelope further and further,spending a fortune and never get anywhere near what you spent,back.john
30 July 2001, 08:46 PM
#75
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...ditto
After spending a fortune on hybrid turbos, fmic's, boost controllers, ecu's, water injection, AP's, suspension etc. etc. i've now gone for an EVO 7
Wish i'd done it earlier - what a car
Rich
After spending a fortune on hybrid turbos, fmic's, boost controllers, ecu's, water injection, AP's, suspension etc. etc. i've now gone for an EVO 7
Wish i'd done it earlier - what a car
Rich
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