Guest Nicholas Posted July 15, 2008 Share Posted July 15, 2008 Right all bit of advice please... I know the cam variator on the vvti is only on the intake side so can I fit say a HKS 272 cam on the exhaust side without any side effects? In regards to controlling it when the single is done I have two options: - 1: - to go with a motec m800 ecu and keep the stock intake cam and use the ecu to control the variator. 2: - get the HKS Valcon kit and control the VVTI via this rather than the ecu, included in the pack is a HKS 264 8.6mm lift intake cam. Anyone fitted the HKS Valcon kit or experimented with VVTI on the motec ecu? Appreciate your feedback. Nick. Quote Link to comment Share on other sites More sharing options...
MarkR Posted July 15, 2008 Share Posted July 15, 2008 I've bought the HKS Valcon kit but have yet to fit it. I guess an advantage of allowing the ECU to control the VVTI is that it can tie it in to all the other adjustments its making, whereas when you control it yourself via the HKS controller then the ECU is unaware of it. The Valcon cam can apparently adjust to 272 on the intake side! What I plan to do is install the cam anyway, but not sure about which method I'll use to control it yet as I haven't decided on ECU yet. If the ECU can do it, then I'll get that to control the VVTI, but if not, then the HKS controller. Apparently (and I may be wrong) but I've heard you can still use the HKS controller to control VVTI on the standard VVTI cam... EDIT: I'm still undecided on whether I need an exhaust cam. I've read on the forum somewhere that you may not need to with the HKS intake cam, but it was a while ago and I can't find the thread. Quote Link to comment Share on other sites More sharing options...
Wez Posted July 15, 2008 Share Posted July 15, 2008 Doesnt the AEM control the VVTI as well, would be much cheaper than a Motec. As your 6 speed you have lots more options, the only issue might be the drive by wire. Quote Link to comment Share on other sites More sharing options...
Kopite Posted July 15, 2008 Share Posted July 15, 2008 The RACE AEM controls the VVTi, the plug and play AEM can be modded with some pins to do that, i think Ryan can do this now Quote Link to comment Share on other sites More sharing options...
Wez Posted July 15, 2008 Share Posted July 15, 2008 The RACE AEM controls the VVTi, the plug and play AEM can be modded with some pins to do that, i think Ryan can do this now I think you need to wire up the spare PWM output and assign it to VVTI control. Quote Link to comment Share on other sites More sharing options...
Guest Nicholas Posted July 15, 2008 Share Posted July 15, 2008 Interesting might be worth an email to ryan, wez what do you make of the HKS Valcon is it worth getting that with the 264 cam on the intake side or do you think I should just get an aftermarket exhaust cam and keep the stock vvti cam variator? Quote Link to comment Share on other sites More sharing options...
Kopite Posted July 15, 2008 Share Posted July 15, 2008 I'm gonna try the Valcon with a 264exhaust cam at some point, from what i remember the stock head runs out of puff at 580hp but i'm not sure if it's just the cams limiting that or the general flow through the head. Quote Link to comment Share on other sites More sharing options...
MarkR Posted July 15, 2008 Share Posted July 15, 2008 What I might do if I can, is dyno my car without the Valcon and then after installing it. Might be a bit pricey though with the remapping. Will see. Quote Link to comment Share on other sites More sharing options...
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