Big Type lV Build 3.1L

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coxcarrera
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Big Type lV Build 3.1L

Post by coxcarrera » Tue May 10, 2011 6:10 pm

Here are the engine specs :

Type 4 Case
Scat 86mm
Pistons J&E 4.210"
Deutz cylinder
Pauter Head
Pauter Rod
Pauter Camshaft
Lifters T. Pieper 58 gram with bushings
Autocraft Wet Sump Pump Stage 2
Flywheel 215mm 914 2L
Helix clutch & dics
Porsche 930 Fans 226mm 11 blades
Pair of the throttle bodies Injection performance


:wink:
Last edited by coxcarrera on Wed Apr 25, 2012 5:09 pm, edited 1 time in total.

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dstar5000
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Re: Big Type lV Build 3.1L

Post by dstar5000 » Wed May 11, 2011 1:14 am

GO FOR IT!
:D

Don
‎"Let me say it as simply as I can: transparency and the rule of law will be the touchstones
of this presidency,".. Barack Obama January 21, 2009, 30 minutes before he signed the law
sealing all his personal information....

warp
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Re: Big Type lV Build 3.1L

Post by warp » Thu May 12, 2011 2:03 am

That's a mean beast! :twisted:

Do you have any specs on the Pauter cam?

Are the Deutz cylinders really big enough for 107mm pistons??

Rolf
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Re: Big Type lV Build 3.1L

Post by Rolf » Thu May 12, 2011 11:10 am

Hi

Double check with Pauter and make sure the rods don't interfere with the cam. Last time I saw Pauter rods on a 86 mm type 4 crank the rods interfered with the cam big time:( Although it was a cam with smaller
base circle. Fat Performance sells some nice Cunninghams look a like rods as well as real Cuninghams rods
and they will clear the cam nicely.


/Rolf

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coxcarrera
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Re: Big Type lV Build 3.1L

Post by coxcarrera » Thu May 12, 2011 4:06 pm

warp wrote:That's a mean beast! :twisted:

Do you have any specs on the Pauter cam?

Are the Deutz cylinders really big enough for 107mm pistons??

Specs Pauter cam :


Image

Deutz cylinders machined :

Image
Image
Image

:wink:

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coxcarrera
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Re: Big Type lV Build 3.1L

Post by coxcarrera » Thu May 12, 2011 4:20 pm

Rolf wrote:Hi

Double check with Pauter and make sure the rods don't interfere with the cam. Last time I saw Pauter rods on a 86 mm type 4 crank the rods interfered with the cam big time:( Although it was a cam with smaller
base circle. Fat Performance sells some nice Cunninghams look a like rods as well as real Cuninghams rods
and they will clear the cam nicely.
/Rolf
Yes , i had checked :wink: i have 1.2mm of the clearance pauter rod light / cam pauter !

Pauter 5.7 and New Pauter Rod light for my engine / cranksahft 86mm :

Image
Image
Image
Image

:mrgreen:

Steve Arndt
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Re: Big Type lV Build 3.1L

Post by Steve Arndt » Thu May 12, 2011 6:29 pm

Can you show more pics of your chuck and fixturing to lathe the cylinders please?

Steve

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Type 4 Unleashed
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Re: Big Type lV Build 3.1L

Post by Type 4 Unleashed » Fri May 13, 2011 12:58 am

Pauter makes rods that clear cams on big strokers, and they provide as much clearance as the Cunninghamn rods do. Just not a lot of people know about them. And these rods use 5/16 ARP Custom Age 625 Plus bolts with a Fastener Yield Strength (psi) 260,000 psi to 280,000 psi rating, where the Cunningham rods use I believe H-11 Tool Steel Bolts with a Fastener Yield Strength (psi) 220,000 psi rating.
Richard

EMW

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have the money to do it right, but can always
find the money to do it twice ?”

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Wally
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Re: Big Type lV Build 3.1L

Post by Wally » Sat May 14, 2011 3:36 pm

Type 4 Unleashed wrote:Pauter makes rods that clear cams on big strokers, and they provide as much clearance as the Cunninghamn rods do. Just not a lot of people know about them. And these rods use 5/16 ARP Custom Age 625 Plus bolts with a Fastener Yield Strength (psi) 260,000 psi to 280,000 psi rating, where the Cunningham rods use I believe H-11 Tool Steel Bolts with a Fastener Yield Strength (psi) 220,000 psi rating.
Good info!
Pauter FTW!

Whats the weight difference cox?
T4T: Type 4 Turbo engine, under construction

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craigvwdude
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Re: Big Type lV Build 3.1L

Post by craigvwdude » Sat May 14, 2011 6:32 pm

just curious, what head studs are you going to use? and how many?

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coxcarrera
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Re: Big Type lV Build 3.1L

Post by coxcarrera » Sun May 15, 2011 12:53 pm

Steve Arndt wrote:Can you show more pics of your chuck and fixturing to lathe the cylinders please?

Steve
To avoid vibration at the machining :

Image

:wink:

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Clatter
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Re: Big Type lV Build 3.1L

Post by Clatter » Tue May 17, 2011 11:36 pm

To avoid vibration at the machining
Oh... to dampen harminics, and provide a good finish...

I thought they were torque plates, to simulate the compression of heads bolted in place.
Did you use torque plates when coming upon the finished size?

Those cylinders look thick enough that they might not gain any benefit from a torque plate..
"Oh, You don't need to do all that... The valve seats are just going to fall out of it anyway!"
- Doug Ellsworth

Beginners' how-to Type 4 build thread ---> viewtopic.php?f=1&t=145853

Steve Arndt
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Re: Big Type lV Build 3.1L

Post by Steve Arndt » Tue May 17, 2011 11:43 pm

We term it "chatter" not vibration in the tooling/fixturing.
Nice improvisation.
s

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dstar5000
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Re: Big Type lV Build 3.1L

Post by dstar5000 » Thu May 19, 2011 1:55 am

I would have cut them down to length first, that would went a long way to stopping the chatter...

DOn
‎"Let me say it as simply as I can: transparency and the rule of law will be the touchstones
of this presidency,".. Barack Obama January 21, 2009, 30 minutes before he signed the law
sealing all his personal information....

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coxcarrera
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Re: Big Type lV Build 3.1L

Post by coxcarrera » Sat May 21, 2011 1:01 pm

craigvwdude wrote:just curious, what head studs are you going to use? and how many?
Image

:wink:

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