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aussiesmg
aussiesmg MegaDork
10/27/14 6:56 a.m.

The beginning of the PACC build is located here, the amount of work and ideas utilized by Andrew and family are simply awesome. Take an hour and see why PACC are on another level.

http://morris777.yolasite.com/

As it raced at $2010

https://www.youtube.com/watch?v=rrcMYjkZhMw

Chassis and suspension purchased from PACC racing over winter, picked up during a wonderful ice storm.

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aussiesmg
aussiesmg MegaDork
10/27/14 6:58 a.m.

The Motorvation for this project is the GRM freebee, as used by us in the S10 several years ago, however we needed to find Spread Port heads due to the Nelson headers, no way was I changing those

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aussiesmg
aussiesmg MegaDork
10/27/14 7:01 a.m.

I finally located some suitable heads on eBay, the owner and I talked back and forth and I convinced him to trade the Dart heads straight for the Brodix, then he offered more..

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The guy (Mike) then assisted with some porting and matching before buttoning up the engine, he even showed up at the Challenge.

Picked up a 9" pumpkin with Track Lok and 4.10 gears for $75.00, also a TH400 allegedly built with 3500 stall and shift kit for $300. Both from Craigslist sellers

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Having been bitten before I was not sure how these would work out

aussiesmg
aussiesmg MegaDork
10/27/14 7:05 a.m.

A month before the Challenge we realised it was only a month before the Challenge.

Paint started

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These rims were on a Stag I had which was free, they fit the front nicely

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Located the set of Western Bullets on Craigslist, 2 x 8.5, 2 x 10" perfect for the rear

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Clean up and paint

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aussiesmg
aussiesmg MegaDork
10/27/14 7:07 a.m.

More Nelson artwork

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and the body gets a lot of attention

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a paint scheme is chosen, with tribute to Sir Jack Brabham

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aussiesmg
aussiesmg MegaDork
10/27/14 7:10 a.m.

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aussiesmg
aussiesmg MegaDork
10/27/14 7:12 a.m.

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aussiesmg
aussiesmg MegaDork
10/27/14 7:16 a.m.

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We beefed up the front sway bar mounts, built delrin bushings for the bar, added 700lb springs which along with wider front tires was about it to improve the autocross suspension.

We found 4 x Kumho V710s on eBay for $250, then sold the 2 we didn't need for $250, nice..

We have the first pair of Hoosier R7s mounted to a private car, they were made on Monday and mounted on Wednesday. Mickey Thompson 10.5 x 28 drag tires were sourced.

The thrash to get it done went on until the autocross had already commenced

aussiesmg
aussiesmg MegaDork
10/27/14 7:20 a.m.

Vince gets full credit for the build, I worked, he wrenched, he put this MGB together, it was challenging trying to sort through the Nelson jigsaw puzzle without a picture on the box to compare it to.

Custom touches include unique and clever throttle linkage, heel well, the 3 link rear, the amount of original sheetmetal retained in keeping with the rules. Just to name a few.

mazdeuce
mazdeuce UberDork
10/27/14 7:23 a.m.

You guys are amazing. I think the Aussie compound does something to warp space time. You always seem to accomplish way more than seems reasonable in the time you have.

aussiesmg
aussiesmg MegaDork
10/27/14 12:07 p.m.

Thank You, but the amazing work was done by the Nelson family long before we picked up the chassis. We are still finding new things on this car that are brilliant.

SilverFleet
SilverFleet UltraDork
10/27/14 4:44 p.m.

And the award for Scariest Car in Challenge History goes to...

Seriously, I cannot believe you guys tamed this beast. Hats off to you guys for keeping it clean!

aussiesmg
aussiesmg MegaDork
10/27/14 6:34 p.m.

The few photos I have at the Challenge

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and we drove it back onto the trailer

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aussiesmg
aussiesmg MegaDork
10/27/14 9:27 p.m.

With thanks to Bruce

http://www.youtube.com/watch?v=F2dPHlF3bxw&feature=youtu.be

aussiesmg
aussiesmg MegaDork
10/28/14 10:52 a.m.

Here is the Grassroots Go Pro filming the 3rd trip down the 1/4, we had just replaced the sway bar and autocross springs, it was worse before with no sway bar and longer softer springs. The 1st run was the wild one.

No spray used yet

https://www.youtube.com/watch?v=wxoDqJEGkos&feature=youtu.be

dculberson
dculberson UberDork
10/28/14 11:16 a.m.

That's the less wild run? Yikes.

edizzle89
edizzle89 Reader
10/28/14 11:49 a.m.

i usually get bored watching in car videos of drag racing but damn... that thing took you for a ride! impressive car control to say the least!

mazdeuce
mazdeuce UberDork
10/28/14 12:11 p.m.

I watched it three times just for the noise.

2002maniac
2002maniac HalfDork
10/28/14 12:20 p.m.

What's the estimated power this engine's putting down?

Mad_Ratel
Mad_Ratel Reader
10/28/14 12:25 p.m.

was it twisting the chassis on launch?

aussiesmg
aussiesmg MegaDork
10/28/14 2:22 p.m.
Mad_Ratel wrote: was it twisting the chassis on launch?

No it was all suspension movement

NOHOME
NOHOME SuperDork
10/28/14 7:25 p.m.

Just spend an hour going over the original build! I still cant wrap my head around what the vision was, only that there is an infinite amount of neat fabrication features.

So, why the wild ride this year? Suspension should have been well enough located with the way it was built.

aussiesmg
aussiesmg MegaDork
10/30/14 7:54 a.m.

It was all our fault, two major problems we know of now.

  1. Panhard was not reset to level when we raised rear to fit drag tires. D'oh

  2. Corner weights were off by 200lb cross weights, easily fixed if we had only known.

We pedaled it every run, it could have done more

aussiesmg
aussiesmg MegaDork
11/4/14 2:47 p.m.

Thanks for the pic highjack GRM

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http://grassrootsmotorsports.com/forum/grm/v8-mgb-drag-run/92436/page1/#post1646224

mazdeuce
mazdeuce UberDork
11/4/14 3:28 p.m.

Is that just engine torque twisting the whole car or is there something fundamental to the setup that is causing that? I'm aware that setting up suspension on a drag car can be hard, but I honestly don't know how one goes about it.

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