Balancing

Blitzkrieg · Post by **Blitzkrieg** » Thu Jul 19, 2007 2:26 pm

Is it worth balancing and maybe lightening the crank etc on a Type4 engine?

What is the maximum that a Type4 crank can spin to in standard form?

Post by **eben** » Thu Jul 19, 2007 3:06 pm

Type IV bottom end is "bullet proof" is what I've heard..... Much much more so than type I

Post by **calooker** » Thu Jul 19, 2007 3:21 pm

Normally it's the flywheel that gets meat taken off, I recommend a full ballance on any motor, even more so if it will be eving above stock.

Blitzkrieg · Post by **Blitzkrieg** » Thu Jul 19, 2007 3:26 pm

Okay and price?How much are we looking at for balancing?

Post by **calooker** » Thu Jul 19, 2007 3:32 pm

@ Fulrace R420

flatfourfan · Post by **flatfourfan** » Mon Jul 23, 2007 2:36 pm

^^^ bargain........

Blitzkrieg · Post by **Blitzkrieg** » Mon Jul 23, 2007 3:32 pm

Honestly, I was expecting much more!!!

Post by **Bugger** » Mon Jul 23, 2007 7:14 pm

What is the maximum that a Type4 crank can spin to in standard form?[/quote]

You can spin it up to 6000Rpm with the right CAM
My friends t4 can spin up even higher but the valve bounce is keeping us back at the moment till the Titanium retainers and stronger springs
cos the stainless steel valves are heavy

4agedub · Post by **4agedub** » Wed Sep 12, 2007 12:45 pm

My type 4 limits at 7000rpm with a 80mm crank and 103 mm pistons, no problem.

Maybe look at getting the crank counter weighted, should make a huge difference

Blitzkrieg · Post by **Blitzkrieg** » Wed Sep 12, 2007 1:06 pm

Bugger wrote:What is the maximum that a Type4 crank can spin to in standard form?

You can spin it up to 6000Rpm with the right CAM
My friends t4 can spin up even higher but the valve bounce is keeping us back at the moment till the Titanium retainers and stronger springs
cos the stainless steel valves are heavy[/quote]

Where did he get his stainless steel valves from?

Blitzkrieg · Post by **Blitzkrieg** » Wed Sep 12, 2007 1:08 pm

4agedub wrote:My type 4 limits at 7000rpm with a 80mm crank and 103 mm pistons, no problem.

Maybe look at getting the crank counter weighted, should make a huge difference

I'm not revving mine past 5000 rpm

Post by **Bugger** » Wed Sep 12, 2007 5:24 pm

Stainless got from v spares
But there are nowadays so many that can be made to fit valve wise
Blitz toy got noting to worry spinning 5500 thats a nice rpm

You can knife edge the crank but beware who does it can end up trowing the crank away by meat taken away at ceartain places and it could not be balanced anymore

Blitzkrieg · Post by **Blitzkrieg** » Thu Sep 13, 2007 2:37 pm

Okay, and are ARP rod bolts worth getting?

Post by **Bugger** » Thu Sep 13, 2007 3:25 pm

for what you building would say will "waste" your money
stockt4 rodbolts are not stretch bolts as 2.1wbx there for good for a fair amount HP

Blitzkrieg · Post by **Blitzkrieg** » Thu Sep 13, 2007 3:34 pm

Bugger wrote:for what you building would say will "waste" your money
stockt4 rodbolts are not stretch bolts as 2.1wbx there for good for a fair amount HP

Okay thanks

Where can i buy new standard rod bolts from?

Aircooled VW South Africa

Balancing

Balancing

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Re: Balancing