6 stud and torque plates

[MegaManx]

Hey guys, so there's not a lot of discussion going on at the moment so i thought I would start one about 6 stud conventions and torque plates. Who has done it? Does it work, what sort of weight ect.

So a bit of background for the topic. I am finally going to embark on building my big type 4 motor after years of collecting parts. Its going to be a 2.4 turbo with deutz cylinders, chev pistons and (probably) machined 914 heads. Im aiming to make a reliable 300+ hp, but my biggest concerns are the strength of the case after machining it right out for the Deutz and the head seal/bending the head.
I know Get Back On Track do the torque plates and locally wane penrose made this set up
Which incorporates a 6 head studs (yes i realize he is running a porter top end) I really like the idea of running this on my set up.
So what does everyone think? Would it be worth doing (i have to get heaps of machining done anyway? Has any one else done something like this on theirs recently? Are there any major downsides?

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[wreck]

I can't t see a down side apart from the machining costs . you can still run 5 studs and bottom exhaust ports . get the heads welded and drilled for the 5th stud . The torque plate would also have to help the case with main bearing movement as well . is that Wayne's set up ?

[MegaManx]

Yeah thats exactly what I was thinking, I've got some big machining costs coming my way anyway. I have access to a water jet so I can get it cut. I can't see any cooling problems, maybe just a bit of trimming. Have you had any flex in your case?

Yeah that Wayne's set up in Phoenix.

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[wreck]

I won't know till I pull the engine down if the case is moving , I've a minor oil leak from the case halves at the bottom at the oil pump end , so may pull it down to fix that and just do an inspection to see how everything is wearing , also considering at step up in cam to a Web 251 . I've got race-ware case bolts that hopefully will hold everything together . Cooling shouldn't be and issue , I'm happy with that final shroud , I'm using the Ghia as an every day car even in the recent heat we had .

[MegaManx]

Well I will be keen to know how it looks after you have it apart. Is the raceware gear the same diameter as standard?

That cam should go good!

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[Arnoud]

Hi!

Looking at your setup gets me wondering if the external reinforcements and their 'ears' would interrupt airflow to the cilinders?I recon that you would have to torque the lower six bolts first and then place the two rods,shim them if necessary and torque the as well?
What's a porter top end btw?

Keep up the good work!

[MegaManx]

Hi!

Looking at your setup gets me wondering if the external reinforcements and their 'ears' would interrupt airflow to the cilinders?I recon that you would have to torque the lower six bolts first and then place the two rods,shim them if necessary and torque the as well?
What's a porter top end btw?

Keep up the good work!

Hey mate, unfortunately this is not my set up, its was a one off made by another Australian racer, but im hoping to do something very similar.
Yes I think you are right about interrupting air flow if you were using a Porsche style fan housing, but Wreck and I are using/ developing one that wont be affected by this anyway.

Porter is a US company that make race based aircooled parts.

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[wreck]

Pauter , some Aussies pronounce it porter

[MegaManx]

Pauter , some Aussies pronounce it porter

Hell I didn't notice the spelling mistake. Im going to blame that one on autocorrect. But yeah that would explain the confusion.

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[Wally]

I would compare the additional costs of machining to using one of the billet head options as I think head warpage is what you try to overcome with all these extra studs, right?

[wreck]

It all depends on how cheap you can get the machining done, verses import duties and exchange rates . I was so tempted to get a set of Thorsten's heads but in the end it was those added costs that was the deciding factor . In Australia at the moment they are almost double the Euro price plus freight then 10% VAT /GST on top of the total .

[wreck]

Slightly off topic but has anyone seen the Torqamp electric superchargers ? Megamanx , I can't remember were you planing a turbo or supercharger ?

one of these wouldn't be enough for a big type 4 , one for each bank would work .
https://torqamp.com

[MegaManx]

I would compare the additional costs of machining to using one of the billet head options as I think head warpage is what you try to overcome with all these extra studs, right?

Yes head warpage is primarily what Im trying to eliminate, and yes a set of heads like yours would be perfect for that, but like Wreck said its just to expensive to justify for us in Australia, especially when i can get the main plates water cut for the cost of the material. But the big benefit over the CNC heads is that this system should also help strengthen the case after it has been machined right out to accept the big cylinders.

Yeah Wreck turbo, although I do have a sc14 supercharger laying around that would be perfect for a 2056.

I haven't heard of that brand of charger before, but to be honest I dont really see the point of it for a street car. Yeah you could use it to reduce turbo lag but extra weight and massive power draw kind of out ways the benefits for me.

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