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I'm getting solid 13.2l/100km around town and 9.8l/100km on freeway.

Hahaha....lean it against a wall and put a brick on the throttle.

Maybe that's not when in gear? Never tried that.

In sports mode it is open at idle and after 3000rpm. Between idle and 3000rpm the valve is shut. In non sports mode the valve remains shut throughout the rev range. Pull the fuse and you'll hear the difference down low.

Thanks for the replies gents. Just thought a good set of shocks might smooth out things a tad and particularly from a rebound perspective. Advice on the sway bars very useful as I'm not planning on regular track days so guess I will can that and put the $ towards the brakes and powerplant...

Ladies and Gents. I lowered my car a while back with Pedders coils (yes flame away :) and am still using the OEM shocks. They are OK and I like the height but is a little harsh on a bumpy road and pot holes are truly disturbing. Was thinking a change of shock might be in order and was going...

Hey Hob. How's the manners of the car low in the rev range? Is there and before and after dyno sheets showing the torque curve?

Pretty sure the one I played with was not stock as was definitely running E85. I miss that sweet smell of the E85.

Yeah can imagine....wife and kids may have to sit on floor 'cos the seats may need to go.

Well today just confirmed to me the need for a blower as I was just completely smoked by what smelt an E85 tuned Typhoon. Wow....it was letting go of the rears at well over 100km/h....awesome!!

So what would a reasonable price to pay for a cam and tune package be?

Would appear so :)

Just rang my local Walkinshaw dealer. Quoted $10990 for full W407 pack and $5850 for upgrade from W375 with new lifters.

Hey Oz how you finding its manners with the auto? Have you improved low down response at all with the cam? Any footage at idle?

Thought you were going to get someone else to look at that tune?

I like the mix and match on the slipstream.

Panhead...do you reckon the GTS and the C63 would be more comparable. Certainly closer in price...although still some margin there. Personally I'm enjoying the W375 and am happy that I've some fall back with warranty (for what it's worth). Blower would be nice though.

Nah it can be turned off plus has many different preset sensitivity levels.

It essentially shortens the throw of the accelerator....like a quick draw throttle. Claims are that hastens butterfly opening however I'm a tad sceptical on the data available. For me, just improves the driving experience.

I realise there will be much flaming about this but I popped one of these units on the car today. I had one on my cammed VE SV6 and really liked how much more fun the car felt to drive. Just feels to hastened up instant throttle response and has worked well on the W375. Before all the haters...

Excellent info...appreciate the response and is brilliant to know the mod can be done without the need to change rims. This will be my next mod....I'd also like the stock SSV wheels painted that same gun metal grey colour as the inside of the rim as I think it will look good on the Slipstream...

I'm sure this is a stupid question (please excuse my mechanical ignorance) but did you change the rotors also or was it just the callipers? Also did car originally have the Police brakes fitted to the front?

Unless of course they are disreputable.

Just a quick question on this does a different tyre profile front to back ie 30 to 35 set of any fault codes?

So James. The DRL's don't dim when lights are on? If so do you think the DRLs are too bright for oncoming vehicles? Can you switch lights on without DRLs?

Great pics and car is looking great James...congrats. Was wondering if you could tell me where the plug and play loom came from for the DRLs? Also I was told yesterday by a pedders dealer that short throw shocks are not available for the VFii unless you go coil overs. Do you know if this is...

Can get Continental ContiSport Contact™ 6 Tyres for $318 each at the moment. Anybody used them?

Yeah they didn't spend long man. Ran it up, tweaked it a little then test drove and tweaked again. Guess with a cam there would be far more tables to edit than when just checking an already standardised/tested base tune. Not sure about the third gear run. They did the same on the original...

Just had the car in for a tune check at Gentech in Canberra. I've read on several occasions that Walkinshaw dealers tend not to spend much time actually dyno tuning but rather just upload a generic tune. I'm sure the base tune is generic but it is nice to know that some Walkinshaw agents do...

Currently has the 245/40R19 on can I run a slightly wider tyre on the same rim. Like a 265/35R19?

The car seems to be chewing through the factory rears pretty quick so just wondering what ppls thoughts are on tyre preference for their bent 8? Seems I'll only get 20 to 25k out of the factory rubber on the rear.

Yep...word for word. Fair enough...I guess is a bit of a risk. Are you not even curious as to what the the dealership assess "the root cause" to be? What car you got your eye on James?

Received the exact same response letter as this one back from Holden. Interested to hear what you going to do bigjim?

Yes! Would be very interested to see what they assess the root cause as being. I've written also but am yet to receive a reply.

All sounds fairly consistently ordinary then. I'm going to write to Holden, for all the good it will do me, to voice my concerns. Do people mind if i lift their comments off this thread to reinforce dissatisfaction??

Just wondering if anyone else has noticed that their car duco seems to chip very easily? I've never owned a car in 30 years that seems to be a stone and carpark dingnome magnet like this one is. Just the most delicate of touches seems to cause chips. Is it something I can take back to Holden...

Just wondering what peoples thoughts are on the effect camming has on resale values?

My age and the fact that I think I'm to old to be further modifying my ride. Completely off topic sorry.

This all looks really cool and great info. Really want to do this too but sadly at nearly 50 am thinking I am getting to old to use it properly.

So if it's in sports auto mode does it allow you to rev to 7k before it shifts?