kirban 2 cents worth
On the Buick trivia question which relates to the GNX project.....I don't think anyone will be able to hit on the 2 answers I am seeking unless they had this "Preliminary Content" that I have dated 25 August 1986.
So, as I stated earlier this paper listed 12 areas they were considering to (modify) for the GNX project.
One area was the turbo ceramic version
They wanted to increase turbo boost by 5 psi restricted by rear axle and transmission limits.
intercooler a new and specific intercooler developed and they considered a liquid version and a larger version.
structure was related at the rear kick up (back brace)
suspension modificaitons to the rear to eliminate wheel hope and improve traction etc...
rear axle modified to accept increased torque
engine compartment cooling active outlets on fenders
exhaust new and specific headers
underhood appearance detailign and routing of wires
tires specific with increase contact patch
guages specific VDO analog with 120 speedo
transmission 400 with doug nash overdrive.....
On my papers the 400 trans with doug nash overdrive has been crossed out so I assume that was quickly killed. The new and specific headers never saw the light of day either although I believe they may have cleaned out the ports better.
Again I am going by memory and I don't claim to be a GNX expert.
Keep in mind and anyone who has studied real GNXs with 547 being built basically by hand their are subtle differences...from early to late ones.
I do have a later sheet showing more details such as a computer prom modification, transmisson oil cooler, and stating possible front and rear wheel opening modifications and exhaust system changes to accommondate rear suspension.
Another page shows more ideas such as remove and clean cylinder heads, reassemble cylinder heads with stiffer valve springs, remove and clean intake manifold, and exhaust manifold changes.
As far as I know none of the changes I listed in the above paragraph happened.
Could be time restraints or cost or both. Again I can only state what I have in my notes.
I also have a chart showing the time span needed to build prototypes etc based on 200 orders in the system dated 22 July 1986.
While it can be said the best laid plans may not have made it into production every GNX owner I am sure is happy with the results that did make it into production.
I remember attending spring and fall Carlisle events in the early 1990s and seeing sets and sets of GN take offs wheels and tires and analog dashes etc....
Never bought any of the tires and wheels never felt like lugging them 1/2 mile to my truck. Think they were priced around $500 a set....
Its tough to think up a Buick trivia question so for now we will let the non Buick one ride until we see a winner and then release the next new contest.
Member post your trunk ID label, or if you have a Turbo Buick question, post it.....I may be able to answer it....
This thread has never faded from the first page under the Turbo Lounge. I appreciate all the support.
kirbanperformance.com
denniskirban@yahoo.com
See next post for more GNX tidbits from my past.....