C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Worlds only VGT TV85?

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Old Apr 25, 2005 | 09:26 AM
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Default Worlds only VGT TV85?

Well as you know, we bought a Mack 1.18 housing for bruce's car. Unfortunatly it is for a much smaller wheel. So I had my dad bore and reprofile the housing radius to fit the 3.922 turbine wheel Since it is twin scroll, I took the opportunity to make my own Vnt. Since the twin scroll is seperated all the way thru the turbine, I made a Inconel (holy shiit it's expensive material!) shaft and butterfly to close off one of the scrolls at low flow. It uses a T3 actuator set for 8psi. So she spools up to 8psi, then opens the butterfly. The racegate contols max boost, which will be set for 15psi. We should see positive pressure at less than 3k rpm.
I think this is gonna be the signiture BTF turbo. Hey Tony, how bout hangin a pair of these babies off that 528" of yours! 2500hp anyone?lol
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Old Apr 25, 2005 | 09:33 AM
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You totally rock!

I work with Inconel every day, and I will back you up on that statement, it's not the easiest thing in the world to machine either!
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Old Apr 25, 2005 | 09:40 AM
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Hell no, it's hard as hell and "Cheddar ish" when you cut too fast. Reminds me of 21n PH stainless. You can tell it has a butt load of nickel in it.
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Old Apr 25, 2005 | 02:03 PM
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Originally Posted by Baldturbofreak
Well as you know, we bought a Mack 1.18 housing for bruce's car. Unfortunatly it is for a much smaller wheel. So I had my dad bore and reprofile the housing radius to fit the 3.922 turbine wheel Since it is twin scroll, I took the opportunity to make my own Vnt. Since the twin scroll is seperated all the way thru the turbine, I made a Inconel (holy shiit it's expensive material!) shaft and butterfly to close off one of the scrolls at low flow. It uses a T3 actuator set for 8psi. So she spools up to 8psi, then opens the butterfly. The racegate contols max boost, which will be set for 15psi. We should see positive pressure at less than 3k rpm.
I think this is gonna be the signiture BTF turbo. Hey Tony, how bout hangin a pair of these babies off that 528" of yours! 2500hp anyone?lol
First of all you are cheating me out of a couple of inches (it's a 532).. And secondly...yes!!!!!
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Old Apr 27, 2005 | 09:58 PM
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Originally Posted by TONYDEE64
First of all you are cheating me out of a couple of inches (it's a 532).. And secondly...yes!!!!!
Tony... your my Hero when it comes to building the ultimate home built C4...

However... if you were to pump your motor past where your at now... and then continue the insanity with 2500 hp... I say their is no point in time that you could pin the throttle for over 3 seconds...

I doubt you can do it now... at least not with me in the car!
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