914 GT 3.6 Ferrari Build, - Mechanicals coming along, electronics soon! Options

[ClayPerrine]

That is a very clean look! And as long as the cardboard doesn’t get wet, it should hold up beautifully! (IMG:style_emoticons/default/slap.gif)

Seriously though, I see where you’re going here and I think it will really come together well.

You beat me to it... I was going to make a joke about his CAD (cardboard aided design) process.

I actually like this better than the tubes. It looks more like something that would be done in Maranello rather than Mobile. (IMG:style_emoticons/default/lol-2.gif)

Clay

[tygaboy]

If you're curious why I may appear overly concerned about mounting the drive train, here's a vid about replacing the motor mounts in the 360. What's awesome is that he videoed before and after to show the improvement after replacing the mount.

There's a nice before/after comparo that runs from 15:41 - 15:53.

But even with the new mounts that thing sure dances around. And that engine note!

https://www.youtube.com/watch?v=D5kS19nXgsI&t=943s

[davep]

One of the designs uses a bent tube, with the bend set vertically, just behind the trans mount. This tube would see forces trying to "unbend" it, make it longer and forcing the chassis wider where its welded at the inner fender. Think "arched doorway". That vs a straight tube where forces are trying to shorten it and pull the fender weldment location inward.

I certainly like the idea of a bent beam support for the transmission. Just like a heavy equipment flatbed float is curved so that it straightens out under load instead of sagging. I was going to suggest it, but you beat me to it. When going over bumps there will also be dynamic loads that have to be allowed for.
Porsche's maxim: form follows function

[tygaboy]

...
Porsche's maxim: form follows function

@davep And I think Ferrari's is the exact opposite (!), or Engine Bays: Who wore it best?
(IMG:style_emoticons/default/av-943.gif)

[davep]

Maybe that is why I like the pre 1990 cars so much better.

[Krieger]

For that rectangular crossbar this would look much better than a bunch of holes/tube collecting dust and add some strenght.

[rgalla9146]

For that rectangular crossbar this would look much better than a bunch of holes/tube collecting dust and add some strenght.

Mmmmmm......... what a nice compliment and a nice surprise.
I'm taking a bow right now !
Thank you
Rory

[tygaboy]

While I do like the beam, it's maybe too industrial looking? So here's the newest revision - and it's my current favorite.

With that curved tube, when it's parked next to my LS build, that will let folks know they're related. (IMG:style_emoticons/default/biggrin.gif)

[tygaboy]

Next it was on to working out the hanger bracket dimensions. There will be a couple 1.5 x 1 rectangular tubes that'll fill the open section in between the cross bars and provide a weld surface for the entire inner edge of the hanger bracket. The actual hanger will be made from 1x3 tube with an adjustable fastening system to locate and secure the transmission mount tab.

Last pic is a mock up of some of the other structure, modded to support this tubular design.

With the curved tube and the boxing at the ends, I think I can get away with no support tubes from the shock towers.

[tygaboy]

I wanted a break from the transmission mount so I disected one of the Ferrari headers. They didn't fit but I was hoping that, maybe, if I got rid of the heat shielding, I might be able to squeeze them in. Nope...

This means aftermarket headers likely won't fit either, so custom headers it will be.

Essentially, I'll copy the factory design but move the "bundle of snakes" part forward about 3-4 inches. There's plenty of room at that point, as you can see.

I'll cut off and reuse the header flange section as it's intricately shaped. Leveraging the factory part will save a bunch of time/money.

[tygaboy]

I spent some time on the phone with Martin discussing the header interference issue. We kicked around a few ideas until he made one of those "duh, why didn't I think of that?" suggestions. A few minutes later and: problem solved!

Before I post any pics, would any of you like to guess?

Be careful because if you come up with the solution (or maybe a better one?!), I'll be calling you all the time to help me with things like this! (IMG:style_emoticons/default/laugh.gif)

And btw, these headers are being used to prove out what'll work. Once that's decided, I'll either refurb these and do things like remove the pre-cat (that 4" diameter section between the collector and the reducer) and get them refinished or start over with an aftermarket set, now that I know what I need to do to fit them.

[Cairo94507]

Why do the headers have to sweep forward at all?

[Lilchopshop]

I spent some time on the phone with Martin discussing the header interference issue. We kicked around a few ideas until he made one of those "duh, why didn't I think of that?" suggestions. A few minutes later and: problem solved!

Before I post any pics, would any of you like to guess?

Be careful because if you come up with the solution (or maybe a better one?!), I'll be calling you all the time to help me with things like this! (IMG:style_emoticons/default/laugh.gif)

And btw, these headers are being used to prove out what'll work. Once that's decided, I'll either refurb these and do things like remove the pre-cat (that 4" diameter section between the collector and the reducer) and get them refinished or start over with an aftermarket set, now that I know what I need to do to fit them.

Switch sides for the header so that the pipe junction/ bundle is below the suspension mount? Would this put the outlet pipes too low relative to the axles?

[tygaboy]

Why do the headers have to sweep forward at all?

@Cairo94507 Michael - The goal of most N/A exhausts is to have equal length header tubing ahead of the collector. Within reason, the routing of those tubes isn't critical, but getting length, plus length of the post-collector exhaust, does make a difference. If I start the headers going back right at the engine, I'll end up with a challenge in terms of mounting the mufflers. And yes, wicked as it'd sound without them (IMG:style_emoticons/default/aktion035.gif) , it'll have mufflers.

[tygaboy]

I spent some time on the phone with Martin discussing the header interference issue. We kicked around a few ideas until he made one of those "duh, why didn't I think of that?" suggestions. A few minutes later and: problem solved!

Before I post any pics, would any of you like to guess?

Be careful because if you come up with the solution (or maybe a better one?!), I'll be calling you all the time to help me with things like this! (IMG:style_emoticons/default/laugh.gif)

And btw, these headers are being used to prove out what'll work. Once that's decided, I'll either refurb these and do things like remove the pre-cat (that 4" diameter section between the collector and the reducer) and get them refinished or start over with an aftermarket set, now that I know what I need to do to fit them.

Switch sides for the header so that the pipe junction/ bundle is below the suspension mount? Would this put the outlet pipes too low relative to the axles?

@Lilchopshop - logical suggestion, and I tried it but swapping sides makes the collision worse and if things did clear the suspension console, the header would end up lower than the engine.

[sb914]

Cut off flanges and reverse them . (IMG:style_emoticons/default/confused24.gif)

[SirAndy]

Before I post any pics, would any of you like to guess?

Raise the engine an inch or two.
(IMG:style_emoticons/default/shades.gif)

[tom.esh]

Heat and bend to fit? Or a big hammer. Just kidding about the hammer.

[tazz9924]

A good ole dent.

[Van B]

Since you’re not playing by euro 4 emissions on this, why not move the cat further down stream so you can get rid of some bulk and reduce heat in the bay?