Bigger throttle body

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wistech · #1 Post by **wistech** » Sun May 07, 2017 5:45 am

To run a huge throttle body one must enlarge the intake tract . So the welder and lathe were working overtime this week. Compare the 42mm to the 46mm and then the 50mm .

wistech · #2 Post by **wistech** » Sun May 07, 2017 5:46 am

One must find a larger throttle body .

wistech · #3 Post by **wistech** » Sun May 07, 2017 5:48 am

Weld weld weld ,grind grind grind ,epoxy epoxy epoxy .

wistech · #4 Post by **wistech** » Sun May 07, 2017 5:50 am

Then take the new larger bore velocity stacks and bore them out even bigger and machine to fit onto the new TB.

wistech · #5 Post by **wistech** » Sun May 07, 2017 5:59 am

Look the stock throttle body fits inside the manifold now.

POWER MAD MAN · #6 Post by **POWER MAD MAN** » Sun May 07, 2017 10:17 pm

That looks familiar. Lol

wistech · #7 Post by **wistech** » Wed May 10, 2017 9:03 pm

I have not decided what size engine this is going on. The throttle body height is also an inch taller than the stocker so there might be a redesign like bolting the TB directly to the head instead of the rubber boot setup. I am curiuos if vibration would affect the sensors or IAC.

wistech · #8 Post by **wistech** » Thu May 11, 2017 3:32 am

I profiled the velocity stack tonight . The intake flange will be through bolted to the stack holding it all together.

JJNelson · #9 Post by **JJNelson** » Fri May 12, 2017 6:26 pm

Make it a 460. That way I'll know if I want to do it.

wistech · #10 Post by **wistech** » Sun May 14, 2017 2:00 am

QUOTE (JJNelson @ May 12 2017, 01:26 PM) <{POST_SNAPBACK}>

Make it a 460. That way I'll know if I want to do it.

This head is also getting the prototype exhaust valves. So I will have to use the 98mm pistons for clearance. Ive shaved the head more for more compression as well so I have to clay it for clearance. I just sent my last CP piston to Tim so it will be a Witech piston instead.