12mm or 25mm spacer for vz

[Mattde]

Thanks Kuz, yeh i had assumed it was something along those lines.
Really would have lover to get the 25mm but having a strut brace I'm nervous that i hardly even have the clearance for the 12mm!
But ill whack it in on sunday and let you know how it goes!

 

[commodore665]

With the 25mm ones I have had to leave off the engine covers off , which is a very minor irritant , you may find the gaskets a bugger to remove as well , at least mine were .


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[commodore665]

Here are my results of the temperatures taken before and after the fitting , sorry for the angle of the photos
1- the car before before being driven at 7-30 am
2- after a 30 minute drive on open country roads
3 - after a 90 minute city and open road drive , with stop and start driving
4 - taken after the fitting , on a slightly cooler morning , before car being used
5 -after a 30 minute drive on country roads
6 - this is the one that surprised me the most , after the same 90 minute drive city and open road with stop and start use

Have not as yet noticed a difference in fuel consumption but will keep an eye on that .

I'm sure some people will have different opinions on these findings , but I am an completely ,unbiased person , telling you of what I found out , people can take from it what they wish , as for gains , the car certainly has more poke down low , seems a lot more willing to rev put as well , and I can certainly feel the difference in temperatures without the use of a infrared thermometer, it will be interesting to see what happens in the coming autumn and winter months when temperatures will be cooler .
cheers Mace for a very good product .
Ian

 

[Mattde]

Top Write up!
Finally got my 12mm installed and it fits perfect with 2-3mm clearance from the strut brace (Thank God!)
Really happy with the results too. Much more responsive low down.
Took it for a drive in the wet last night. Whilst sitting at 40kmph decided to plant my foot and actually managed to get the wheels spinning when the trans downshifted. oopps, my poor tyres. Couldn't be more happy though. great product!

 

[commodore665]

Top Write up!
Finally got my 12mm installed and it fits perfect with 2-3mm clearance from the strut brace (Thank God!)
Really happy with the results too. Much more responsive low down.
Took it for a drive in the wet last night. Whilst sitting at 40kmph decided to plant my foot and actually managed to get the wheels spinning when the trans downshifted. oopps, my poor tyres. Couldn't be more happy though. great product!

They are good , the 25 mm ones I've got in my VZ make all the difference , on a personal note I reckon the Alloytecs really do benefit from this modification . I had the 12 mm ones on my old VX and thought they were great as well .


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[MACE]

Glad to hear that you're happy with the upgrade guys

 

[commodore665]

Interestingly , whether it's just my imagination , but my car seems to be getting more torquey over time , probably just the computer adjusting to the intake temps dropping .


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[Group C]

First long trip away after fitting 12mm to my VZ v6,have done the trip Goldcoast to Syd many times in last couple yrs before mod was averaging 7.2/7.4 ltr-100km,after mod found fuel usage higher up to 8.2/8.8 ltr-100km ,did notice would hold gear in hills better so defiantly increase in torque,but disappointed in fuel usage comparison

 

[MACE]

First long trip away after fitting 12mm to my VZ v6,have done the trip Goldcoast to Syd many times in last couple yrs before mod was averaging 7.2/7.4 ltr-100km,after mod found fuel usage higher up to 8.2/8.8 ltr-100km ,did notice would hold gear in hills better so defiantly increase in torque,but disappointed in fuel usage comparison

Thanks for your constructive feedback Group C. For the record, have your primary O2 sensors been replaced? The reason for this is that they can be problematic (no longer accurate), while not registering a fault code.

If you have any questions please don't hesitate to ask

Kindest Regards,
Steve

 

[Silver6]

I cant wait to put mine on the VE this weekend. Got a question though. Seeing as I had to put the manifold back on with the RTV is there a way I can get it off easier or am I just going to have to rip at it until it does?