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Swedish Endeavors: Project Rally Tractor

Posted by slidewayswrx 
slidewayswrx
Patrick Darrow
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Location: Portland OR
Join Date: 12/30/2006
Age: Midlife Crisis
Posts: 379

Rally Car:
Swedish John Deere



Re: Swedish Endeavors: Project Rally Tractor
April 27, 2012 06:43PM
Worked a bit again last night. We had been slacking at cleaning up the shop so we spent a good chunk of time getting things back in shape. It was certainly needed. Then we righted the car, drilled a larger hole through the pan-hard mount, and hung the axle back under it.







Things are looking good. We have ample clearance to the pan-hard rod, links are centered in the boxes and the pinion angle looks to be close as well. We are right at 4" of up travel to the bottom of the bump-stops on the chassis. Me likey...do you???

I am also getting way antsy waiting for my ride in Al's Swedish fish! Is it Wednesday yet???



Zap zap my ass...
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phlat65
Sean Medcroft
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Location: Edmonds, Washington
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Rally Car:
Building a Merkur


Re: Swedish Endeavors: Project Rally Tractor
April 27, 2012 09:18PM
Looking good boys!
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slidewayswrx
Patrick Darrow
Mod Moderator
Location: Portland OR
Join Date: 12/30/2006
Age: Midlife Crisis
Posts: 379

Rally Car:
Swedish John Deere



Re: Swedish Endeavors: Project Rally Tractor
April 29, 2012 01:54PM
Oh I also ordered my seat this week....

Cobra Sebring Pro

...Vanity is a(n) (attractive) bitch!



Zap zap my ass...
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jrally
Jon Rood
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Location: Phoenix, AZ
Join Date: 10/19/2010
Age: Midlife Crisis
Posts: 154

Rally Car:
'94 Escort GT (sold)



Re: Swedish Endeavors: Project Rally Tractor
May 01, 2012 03:53PM
Group B Celica, not a bad way to model your suspension after... Your axle install is looking great!

-Jon
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sidewaez
Blake Lind
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Location: Hillsboro Oregon
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orange AE86


Re: Swedish Endeavors: Project Rally Tractor
May 03, 2012 02:36AM
Quote
jrally
Group B Celica, not a bad way to model your suspension after... Your axle install is looking great!

-Jon

Wait until you see the next car we build...
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jrally
Jon Rood
Senior Moderator
Location: Phoenix, AZ
Join Date: 10/19/2010
Age: Midlife Crisis
Posts: 154

Rally Car:
'94 Escort GT (sold)



Re: Swedish Endeavors: Project Rally Tractor
May 03, 2012 01:19PM
I've been seriously contemplating selling my fwd Grp2 car and building a Celica for rallying, wide body styling and all. The question at that point is high strung Grp2 or bite the bullet and build Grp5..?

-Jon
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slidewayswrx
Patrick Darrow
Mod Moderator
Location: Portland OR
Join Date: 12/30/2006
Age: Midlife Crisis
Posts: 379

Rally Car:
Swedish John Deere



Re: Swedish Endeavors: Project Rally Tractor
May 11, 2012 10:50AM
So we jumped back on this horse last night. Feels like we made some progress but then agian cutting huge holes in the car tends to do that. The pictures came out shitty, but the work itself is looking pretty good.



Nearly tucking rim at full compression. still lots of clearance underneath and in the boxes.



Yeah, tubbing was not an option here.



We started off by drilling a couple of holes with the hole saw, then when we felt we had the placement figured out we slit the wheel wells and slid the boxes in. then traced the arc on the floor.



Now through the floor and resting on the bottom of the chassis rail. Getting closer to their final height. We looked closely at placement of the shock to remove as little of the chassis rail as possible but it was just unavoidable.



Bit more fitting then we'll start tacking things in place.

Press On...



Zap zap my ass...
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phlat65
Sean Medcroft
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Location: Edmonds, Washington
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Rally Car:
Building a Merkur


Re: Swedish Endeavors: Project Rally Tractor
May 11, 2012 02:30PM
I like it alot.... You guys rock!
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slidewayswrx
Patrick Darrow
Mod Moderator
Location: Portland OR
Join Date: 12/30/2006
Age: Midlife Crisis
Posts: 379

Rally Car:
Swedish John Deere



Re: Swedish Endeavors: Project Rally Tractor
June 17, 2012 01:08PM
So anybody got a clue as to why the swedes felt the need to make these things 70mm more narrow in the rear? The last setup up the car was running was also with 25mm trax spacers in the front to clear the RX7 calipers, meaning my front track was 4 3/4" wider than the rear..eye popping smiley

We knew of this when we started and is one of the reasons we have decided to tub the rear fender wells. My question is how close to even should I look at getting this thing? Handling wise, square is best, yes?

I need to keep a small spacer up front to clear the rx7 brakes, 5-10mm, and wheel spacers will now be needed in the rear, to clear the springs. If i move the 25mm spacers to the rear, and go with the 5mm spacers up front that would give me 144 cm of track in the front and 141 in the rear, or 30mm more narrow in the rear.

Disclaimer: I am aware that spacers on a rally car is a terrible idea but it is just the reality of it at the moment. These are things that we can look to improve upon in the future, when the car is once again alive. A toyota rear will take care of the spacers in the back and either dedicated rally wheels, or yet another brake setup up front and those can take a hike as well.



Zap zap my ass...
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phlat65
Sean Medcroft
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Location: Edmonds, Washington
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Rally Car:
Building a Merkur


Re: Swedish Endeavors: Project Rally Tractor
June 17, 2012 01:14PM
I have been running 25mm spacers on the front of the rally car since day one with no problems. They are nice H&R hub centric ones, with long ARP wheel studs. Hit a rock hard enough to push the wheel into the wheelhouse and bend the 24mm thick swaybar/comp strut into a pretzel.

Bolt on spacers are a bad idea...
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slidewayswrx
Patrick Darrow
Mod Moderator
Location: Portland OR
Join Date: 12/30/2006
Age: Midlife Crisis
Posts: 379

Rally Car:
Swedish John Deere



Re: Swedish Endeavors: Project Rally Tractor
June 17, 2012 01:29PM
Why are you running the spacers and what have they done to your foot print?

One plus is that when we went to the rx7 calipers and spacers we also took the time upgrade the studs too. Think I found some that were near press in from an old dodge power wagon.

The 25mm spacers that I have are the bolt on variety, they are still hub centric. Trax is a line H&R produces. Would you still worry about this? Just another link in the chain that can fail, right?



Zap zap my ass...
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phlat65
Sean Medcroft
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Location: Edmonds, Washington
Join Date: 02/12/2009
Age: Midlife Crisis
Posts: 1,802

Rally Car:
Building a Merkur


Re: Swedish Endeavors: Project Rally Tractor
June 17, 2012 07:21PM
I have to run spacers to clear the spring perches on the front struts. 25mm gives me about 5mm of clearance.

Bolt on spacers put alot of leverage on the fasteners that bolt the spacer to the hub. A conventional spacer with a strong stud through the hub/spacer/wheel carries and distributes the load better. ARP studs are not expensive.

Ian Topping had a bolt on spacer failure in his first event with his 242 if I remember. I have seen them come off at drift events, and I don't think they are legal in SCCA.
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NoCoast
Grant Hughes
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Location: Whitefish, MT
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BMW



Re: Swedish Endeavors: Project Rally Tractor
June 18, 2012 12:20PM
Quote
phlat65
I have to run spacers to clear the spring perches on the front struts. 25mm gives me about 5mm of clearance.

Bolt on spacers put alot of leverage on the fasteners that bolt the spacer to the hub. A conventional spacer with a strong stud through the hub/spacer/wheel carries and distributes the load better. ARP studs are not expensive.

Ian Topping had a bolt on spacer failure in his first event with his 242 if I remember. I have seen them come off at drift events, and I don't think they are legal in SCCA.

Just a side note, I had a set of six 15X7 et 35 Compomotives that I picked up used from Sprongl's. They too required a 25 mm spacer up front but since they were 15X7 they stuck out super far. Ended up getting a set of 4 15X6 et 25 Compomotives which kept the inside of the wheel at the same location as the 15X7 with 25 mm spacers but brought the outside edge 1 inch inward. I run the 15X7 in the rear and the 15X6 up front.
Just FYI in case you ever decide to buy some rally wheels.



Grant Hughes
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john vanlandingham
John Vanlandingham
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Saab 96 V4



Re: Swedish Endeavors: Project Rally Tractor
June 19, 2012 09:23PM
Pat, sent the sheetmetal bits for the chassirail mounts.
And included this drawing:


should be fairly clear, or just ask.
Width is whatever bush you use. i like the ford bush and I use an ordinary Ford SOHC 2300 headbolt which is M12 x 1.75 x just right.

Now if your out in the Rally Spare Parts Storage Depots that some cynical bastids call "junk yards" and grabbing a couple of those, see if you see any "real" Saab 900s. holding on each lower front a arm are 5 really nice M12 nuts: full height, integral washer, nylock...grab 'em



John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

www.rallyrace.net/jvab
CALL +1 206 431-9696
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sidewaez
Blake Lind
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Location: Hillsboro Oregon
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orange AE86


Re: Swedish Endeavors: Project Rally Tractor
June 20, 2012 01:14AM
Quote
NoCoast
Just a side note, I had a set of six 15X7 et 35 Compomotives that I picked up used from Sprongl's. They too required a 25 mm spacer up front but since they were 15X7 they stuck out super far. Ended up getting a set of 4 15X6 et 25 Compomotives which kept the inside of the wheel at the same location as the 15X7 with 25 mm spacers but brought the outside edge 1 inch inward. I run the 15X7 in the rear and the 15X6 up front.
Just FYI in case you ever decide to buy some rally wheels.

Staggered wheels, good idea! Pat as your attorney I advise you to buy two sets of custom rally wheels!
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