Fire and Ice
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Can I make a suggestion on the framework. The rear and the front looks really rigid and shouldn't have much flex but besides the subframes, there isn't much to keep it from flexing in the middle other than the roofline. Maybe some bars that come out from the roll bar allong the door that attach to the floor similar to an 8 point roll cage. I was just thinking of the inate nature of a flexible chassis is that everything gives a little and with such a rigid front and rear... the middle will be the part that will give. On a good turn with traction to plant the outside tire you will probably end up putting a lot of pressure on the apillars.
Kevin
Kevin
DukeGnarley
Member
That rear cage looks cool, but i think it's probably overkill and some of the extra bracing on it will end up being just dead weight.
1320stang
Founding Member
68FBJJZ109
Member
The only question i have is will that front cage clear the master cylinder and the hood hinges running through and connecting to the shock towers. I am just curious because i want to tie my shock towers into a roll cage, just i am not at the step.
SN65 said:Here is a sketch of the proposed "cage"
We will tie the front of the cage to the torque box area and the rear to the rear suspension mounting points.
Yes, I agree with you on this one. The center section is going to be the weak link.Sicarius428 said:
I am considering extending the cage to the front of the car, but, in doing so, the cars become less practical for street use, which is a major consideration.
I am thinking about the "A" pillar problem. I have had a couple of ideas, but nothig that has jumped out and bit me yet.
I will keep working at it. The final product should be functional andthe design should be eligant when complete.
Yes, the cage is a bit "overkill" but I need something that is both functional and has a certain amount of eye appeal.DukeGnarley said:
The extra bracing is a bit over the top, but I was going to build the main segments of the cage with 1.75x.125 tube and the rest out of lightweight thin wall tubing to keep the weight to a minimum.
I am going to have to try and keep this straight. I am hopeing that this type of confusion will fade away when we start to work on the cars themselves.mtbdoc said:
Unfortunately, you are correct. I just can't put something in the car that we did not engineer ourselves. My problem is that I am used to designing the supporting structure and platforms for large water tanks and pressure vessels. You tend to go a bit over the top when designing structures located in a seismic zone supporting tens of thousands of pounds.1320stang said:
Yes and no.Jester67 said:
Yes the cage will keep the roof up during a role over, but it will also stiffen up the rear suspension mounting points as well as tie together the rear frame rails helping to eliminate twist.
If I design the cage correctly, any force that tries to move one of the 4 mounting points (up or down) will be transmitted to the other 3 points. If this is done properly, the rear section should end up quite a bit stiffer with the cage than without.
All of these issues sould be laid to rest when we actually get to test the modifications for torsional stability. I for one, am currious as to the finnal results.
The structure we are adding to the front end of the car will not interfear with any of the "stock" mustang components.68FBJJZ109 said:
This is the Ford XR6 turbo with the "Cobra" package making 450Kw (603hp) in the BA Falcon. The stock XR6 Turbo "only" makes 360 hp. 
The DOHC is very similar in packaging dimensions to the older 200-250 and the Crossflow, and it would be an easy fit in an early Stang. I looked at these DOHC motors several years ago for my coupe, but ended up with the Crossflow due to cost. At the time, rebuildable Crossflows could be had for next to nothing. Mine is a mild 250 and makes approximately 220 hp. With the 5 speed iin the lightweight early coupe, it is a match for most stock GT's.
Anyway, the point is, the new FordSix Turbo EFI, the XR6 Turbo, and the earlier Crossflows, SOHC, and DOHC naturally aspirated motors all exist and are interesting and powerful alternatives to the typical V8. I can't wait to see what Mike Winterboer's new cylinder head will do with a little boost and EFI. It just takes a little more imagination and creativity. Fire and Ice are great examples of that.
The DOHC is very similar in packaging dimensions to the older 200-250 and the Crossflow, and it would be an easy fit in an early Stang. I looked at these DOHC motors several years ago for my coupe, but ended up with the Crossflow due to cost. At the time, rebuildable Crossflows could be had for next to nothing. Mine is a mild 250 and makes approximately 220 hp. With the 5 speed iin the lightweight early coupe, it is a match for most stock GT's.
Anyway, the point is, the new FordSix Turbo EFI, the XR6 Turbo, and the earlier Crossflows, SOHC, and DOHC naturally aspirated motors all exist and are interesting and powerful alternatives to the typical V8. I can't wait to see what Mike Winterboer's new cylinder head will do with a little boost and EFI. It just takes a little more imagination and creativity. Fire and Ice are great examples of that.
Look forward to seeing you there.GNN60GT500 said:Hey SN65- not to get off topic for a minute- but Im looking forward to seeing your car for the first time at SEMA...(I work for Magnaflow)
See you there-
This very second, the Sn65 is motoring its way around the Putnam race track. Wayne is taking Jim Ring (you know, Jim of the Ring Brothers) for one of the trial laps arond the course.
They are at the Air Rides media event. Pretty cool considering that we don't have an air ride suspension on the car.
We are one of only two cars (without air ride suspensions) to ever be invited to the event.Wayne will be piloting the SN65 around the track. I hope he takes it easy, but I also hope he does us proud. Lets keep our fingers crossed that he drives safe and kicks A$$.
ozstang65
Founding Member
Hi Bob, glad you found your engine
I've seen reports of these things doing sub 13 second quarters, stock, in an 1800kg car!
Good luck, can't wait to see the results!
I've seen reports of these things doing sub 13 second quarters, stock, in an 1800kg car!Good luck, can't wait to see the results!
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