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View Full Version : VNGPA - a true SV



Sniper
22-06-2014, 10:20 AM
Whilst the VK and VL GroupA's seem to demand the most Kudos these days, I believe the best was the last . . . and as the poster in the day said . . . "We've saved the best til last"

The VN GPA certainly deserves its own discussion thread as its development was far more extensive than all the previous GPA's . . . and coupled with the added mystique of only 300 units being produced this GPA will ultimately be rarer and more sought after

There were m***ive development projects around this car in every performance department

1. A specific "Higher Comp" engine Combo -
2. M***ive rework of he intake to produce longer ram tubes
3. 6 Spd Gearbox and a flywheel that for its time was trick
4. A wheel combo that needed a couple of tricks to make happen

Anyway . . it would be good to get all the unique pics that have popped up recently into this thread pls Dan (SV90) and anyone that has a VN to post up their car in this thread too

But I'll throw out a question to get started

The 17 x 8" wheels needed a couple of tweaks to make fit and p*** ADR's . . . what were these tweaks . . . ??

HSVGTS125
22-06-2014, 10:46 AM
But I'll throw out a question to get started

The 17 x 8" wheels needed a couple of tweaks to make fit and p*** ADR's . . . what were these tweaks . . . ??

I'm unsure of the wheel itself (which Mike Simcoe of the VT based Monaro Designed) but I know it required a narrow diff from the VL to fit in the guards as they were designed for IRS.
VN Group A wheels are my all time favourite. I love these and would love to buy a set if I can ever find a set at the right time

* The ironic part is the VN Group A is probably the most worthy car to wear the HSV tag but isn't an HSV at all. Yes a joint venture contract build but there still would have been a VN Group A regardless of who won the contract if HSV wasn't the successful candidate 3 years earlier.
Big dollar investment during bankrupt times for Holden showed how committed they were to make it work

xu1
22-06-2014, 01:19 PM
Didn't they also have to fit small 'flare' to the front of the guards?

Sniper
22-06-2014, 02:20 PM
Your both correct . . . the small front flares were an ADR compliance item and the VNGPA had. VL Diff with slightly different handbrake brackets . . .

The VN also had a 3.45:1 ratio to sharpen up the acceleration plus suit the 6th gear ratio of the gearbox!!

HSVGTS125
22-06-2014, 06:39 PM
SV5000 got the VL diff first, same 330mm brakes and different front wheel extensions to suit 8" wheels. I'm yet to see an SV5000 that got the VN Group A extensions.

Because Group A is a holden you will notice it doesn't get the HSV logo on the instrument cluster

Sniper
26-06-2014, 07:00 PM
Does anyone ave the image of John Lindell with all the VNGPA exclusive parts laid out on a floor!! . . .

moray066
26-06-2014, 08:59 PM
I do have that picture Graeme, had a dig around for it, but looks like it's been boxed (I'm currently moving house)
I did find an article on the 1982 VC HDT Bathurst winning car, which was sold off and converted back to a road car and registered! Wonder where it is now! I did also find some info on the VN Grp A which I'll post now


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RedHotMike
26-06-2014, 08:59 PM
A bit OT but some interesting trivia none the less - VN is 1 of 3 Commodore models not to win Bathurst.

moray066
26-06-2014, 09:37 PM
http://i1164.photobucket.com/albums/q567/moray066/Mobile%20Uploads/C3A1E36B-366D-44D6-B972-F4A5FA06CEE4_zpswuimmbnp.jpg (http://s1164.photobucket.com/user/moray066/media/Mobile%20Uploads/C3A1E36B-366D-44D6-B972-F4A5FA06CEE4_zpswuimmbnp.jpg.html)


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moray066
26-06-2014, 09:38 PM
http://i1164.photobucket.com/albums/q567/moray066/Mobile%20Uploads/4EC5CC54-2F8D-411A-A00D-4D2C63C9115C_zpsswcghsnu.jpg (http://s1164.photobucket.com/user/moray066/media/Mobile%20Uploads/4EC5CC54-2F8D-411A-A00D-4D2C63C9115C_zpsswcghsnu.jpg.html)


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SoulJet
27-06-2014, 09:54 AM
Does anyone ave the image of John Lindell with all the VNGPA exclusive parts laid out on a floor!! . . .

This one?
(Quality is not the best sorry)

Sniper
27-06-2014, 10:13 AM
Yep . . . that's the one . . . looking back on it and considering all the engineering necessary to combine everything into that build it was enormous

These days HSV do not have to do anything engine or transmission related . . by comparison

Just the clutch and flywheel development time and validation would have been a m***ive effort . . .

SoulJet
27-06-2014, 10:36 AM
Agreed. It's part of the reason I find the older hsv's so much more interesting and desirable.