Sheet metal vs cast intake

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Sheet metal vs cast intake

Post  larry552 on June 2nd 2015, 10:45 pm

For an 1/8 mile drag car big tire 2400lb with 632 will a cast intake or a sheet metal intake better for this combo. Single fogger system.
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Re: Sheet metal vs cast intake

Post  schmitty on June 2nd 2015, 11:26 pm

Phillip got me 1272HP and 1018TQ on a single 4 cast.
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Re: Sheet metal vs cast intake

Post  dfree383 on June 2nd 2015, 11:28 pm

The Ford racing intake works well for the $$$ the sheet metal stuff will make more power but it's at $3000 + an additional carb.
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Re: Sheet metal vs cast intake

Post  rmcomprandy on June 3rd 2015, 9:48 am

When using a Victor ... I know a couple racers who have re-fabbed just the #1 and # 8 runners with sheet metal for a pretty substantial gain with 520/530 sized engines.

SO, sheet metal AND cast you could say. Wink

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Re: Sheet metal vs cast intake

Post  kim on June 3rd 2015, 6:27 pm

Hymmm.... Use plenum and rails... Sheet metal... Wieand Tunnel ram. Might have to get me another and see what can be done. Never even thought about that. Not like aluminum tubing is that expensive.

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Re: Sheet metal vs cast intake

Post  richter69 on June 3rd 2015, 10:51 pm

Philip is porting and welding 16 nitrous bungs in my cast Intake for my 632..... FWIW
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Re: Sheet metal vs cast intake

Post  Curt on June 4th 2015, 8:44 am

richter69 wrote:Philip is porting and welding 16 nitrous bungs in my cast Intake for my 632..... FWIW

But once you start injecting directly into the cylinder, the manifold becomes less of an issue. Jon Kaase told me that if you add N20, the heads don't care if they are just "okay".
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Re: Sheet metal vs cast intake

Post  Lem Evans on June 4th 2015, 9:25 am

If a guy had 1,200 hp rather 1,100 hp ....that's 100 hp of spray a guy does not have to manage.

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Re: Sheet metal vs cast intake

Post  kim on June 4th 2015, 11:28 am

Fewer failure points makes a combination so much more fun to manage.  Problem lies in the already discussed issues of the N2O builds.  If your going to spray player loads you going to compromise max NA performance.  

Jon which block are you using to build the 632?  Heads?  And of course this threads subject...  which manifold is getting worked?

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Re: Sheet metal vs cast intake

Post  Lem Evans on June 4th 2015, 1:18 pm

Life is full of compromises. But, putting a mediocre cylinder head on a sprayed 632 engine isn't one I'd make.

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Re: Sheet metal vs cast intake

Post  kim on June 4th 2015, 2:10 pm

Me either.  C. Thor or B441.  Problem is finding some I can afford.

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Re: Sheet metal vs cast intake

Post  richter69 on June 4th 2015, 4:59 pm

Ford c heads, ford c intake, ford a460 block
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Re: Sheet metal vs cast intake

Post  Curt on June 4th 2015, 5:08 pm

richter69 wrote:Ford c heads, ford c intake, ford a460 block

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