Scooby

yes and yes. not sure how many bolts.

coils maybe.

Chris did you take it to ESP? What do they say?

i know how you listen for knock, what i'm asking is how you set the knock correction point if you don't know what knock freqs are for a given engine. if it was standard practice to get the engine to 'just' start knocking and set that as the threshold for the ecu to trigger knock control there would be no question, i just don't intend getting my car tuned that way. Turbo XS claim that once the procedure of calibrating the Knocklight to the freq range of normal engine noise for a given engine - ie without knock - is complete, it recognises freqs outside that as knock. they are confident that the unit will pick it up correctly because knock freqs are fairly unique. in other words it detects freqs outside those parameters as knock, although the suggestion is that knock freq range is extremely narrow. i'm not advocating their approach but i can see it's plausible as they use the parameters of an particular engine's unique freqs. another example; the stock GTR ecu has knock control but if you use it on an RB26/30, which will have a different knock freq to a stock RB26, there is no guarantee it will be effective as what it hears when a 26/30 knocks itself to death might be different to what it has been calibrated to recognise as knock. hope that makes sense. just not sure how it's done with the Vipec.

i see. that's good news, thanks for clarifying

Hi Chris thought you already had yours tuned at ESP?

with the amp. i'm keen to know how people are setting up the knock response threshold since it's hard to know what knock sounds like for a given engine unless you can produce it. ie no point having the knock function set at a threshold such that the thing is rattling away but the ecu does nothing because the knock severity at which it acts only occurs when the conrod exits the block. unless of course it's a noise filter like the Turbo XS Knocklight. would also be nice if they could find a way to use the standard knock sensors on the GTR.

Vipec V44 plug-in manual: GTR models are fitted with LOW impedance injectors run via factory fitted ballast resistors. This ECU has been designed to be used with HIGH impedance (greater than 6 Ohms) injectors. Ballast resistors must be wired if low impedance injectors are to be used. This means that the ECU is plug-in compatible with factory fitted injector/ballast combinations on all models.

anyone come up with a good way of determining correct knock threshold?

what brand rotors / hats?

premier

You tried esp in canberra? Hi Chris, yes I did. The issue was that there was no knowledge of something that the manual stressed was absolutely imperative. Maybe the manual was overstating the case, maybe they were not supported as well as they should have been but that's not for me to say; I have to assume the manual is the point of truth. IMHO it wouldn't have been a dangerous ommission but I expect a dealer to know the thing 100%.

pms replied

I'm the last person to 'follow a trend' but $1386 rrp for the G4 Link plug in vs $1650 for the Vipec = only $264 in favour of the G4, and Link told me that the G4 doesn't come with an IAT sensor so the difference is even less. On the odd time I've called Ray to get clarification on something he's been more than helpful, when I called Link they didn't seem very enthusiatic and could name only a couple of dealers in Sydney and none locally (Canberra). That said, when I've scoped Vipec dealers in anticipation of getting someone to install, most of them weren't aware of some really fundamental stuff that was in the manual, which did nothing to reassure me. For example, one was going to charge me for a mac valve when the GTR solenoid is fine for controlling boost. The only one within reasonable travel time that did appear to know it well wanted $3000 drive in-drive out. No thanks. While the 'whose ecu is it really' question is interesting, surely the main game is finding out which provides overall best bang for the buck. At this stage it seems to be the Vipec due to its popularity, and I don't see any threads on SAU extolling the virtues of the Link. Correct me if I'm wrong.

OK so what's RRP on the Link G4?

if you expected to get a set of undamaged cams it's unacceptable. take this up with the seller.

Ray seems to think its possible so I'm going with the stock GTR solenoid.

what diameter gauges does the Blitz DIN unit take?

record the rego and advise the cops. for all we know he is already on their sh$tlist. that's all it takes for the real road fools to get a visit sometimes.

still for sale

Pics here. The clear bag with the convoluted tubing and the red wire contains the solenoid module. Have purchased PFC that came with used boost controller and don't need two units so this one is going.

oh..and panel beaters /spray painters that walk away from a job declaring it finished when a blind man adept at braille could tell things aren't 100% right in the fit/finish area. the inevitability of going back is infuriating when you know they play the 'hope he doesn't notice / care' game right from the start. tossers.

bump

sitting down in great anticipation of Top Gear only to realise it was on LAST night because despite being the first day of the working week today is Tuesday! Arrrrghhhh!

Ok great, PM me your details and i'll send the funds. Cheers