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Whipple LT1 Idea

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Old 11-19-2017, 01:41 PM   #1
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Default Whipple LT1 Idea

In my quest for more power, and reading my thread about going solid roller, I have another idea...

So first off, I know people have thought about making a positive displacement style supercharger work on the LT1 and a few have even made them with custom made/machined intakes, or remote mounted the blower.

My idea is would be to use a SBC Whipple intake with intercooler, and modifying it to work on the LT1/4, which I would think would be the same as converting a SBC intake to the LT1? Then to use the rear pulley setup with throttle body on the front of the supercharger. Obviously this would require a non-stock hood, but I have a taller than stock hood already and don't mind trimming the cowl. I would assume that this would be the easiest/cheapest way to do a Whipple LT1. Thoughts, input, info from those who have attempted this? This isn't a near term goal for the car, but it is a long-term (2-3 years) goal and I think should be doable?
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Old 11-20-2017, 09:34 AM   #2
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Last edited by smitty2919; 11-20-2017 at 11:37 AM.
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Old 11-20-2017, 12:10 PM   #3
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Yeah the corneltechweb site and other link are the ones I've seen before. I want to do a rear pulley, front opening setup though like the LS kits are. As far as the Whipple SBC kit that is not a carb setup, just change out the blower unit for a front intake unit instead of top intake unit and add injector openings and it would then be a non-carb setup.
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Old 11-20-2017, 12:26 PM   #4
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My next step is to start printing certain Eaton/Whipple body+snout dimensional layouts so mockup on a spare motor can begin.
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Old 11-20-2017, 10:17 PM   #5
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You could also look into adapting the Magnuson TVS2300 LS1 kit.
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Old 11-20-2017, 11:32 PM   #6
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You could also look into adapting the Magnuson TVS2300 LS1 kit.
That kit with a custom lower intake for an LT1 might work. However, I want to run an intercooler so it will raise the height a bit. Its nothing I'm starting on anytime soon, just getting the idea together now, so maybe I can piece together some of the parts along the way.
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Old 11-21-2017, 11:21 AM   #7
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Other than the cool aspect to it, gotta ask, why?

A side slinger would be easier and better able to control IAT's
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Old 11-21-2017, 11:36 AM   #8
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Cool factor is 80% why I would do it, but it would cost at least twice as a DYI turbo system.

Not many people have completed one so to say you have a roots blower on a LT1 is nice. But once you talk about efficiency/power potential/packaging/cost compared to turbo, it's hard to stick with the roots setup.

For my needs for autocross and road racing, a roots will give off some heat unless properly intercooled. Which brings you to a packaging issue. Next, almost everything will be custom machined/welded. A turbo would suit me better as there is only piping fabrication and some brackets to fab up but I would be looking at a rear mount as to keep some weight off the nose of an already nose heavy LT1 car.

Adding a turbo housing (weight) under the trunk on passenger side would be beneficial from a corner balancing aspect. Same idea relocating battery to that area.
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Old 11-21-2017, 01:52 PM   #9
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Other than the cool aspect to it, gotta ask, why?

A side slinger would be easier and better able to control IAT's
Well that is one aspect of it, the uniqueness of it. Also, a positive displacement blower has a broader power range than a centrifugal, it makes boost instantly as opposed to just top end, and you also don't have the issue of boost creep in the intake as much as you do with a centrifugal or turbo setup, so no BOV needed. I don't want to go roots either, I want to do a twin-screw, they are more efficient, actually compress the air, and run a lot cooler than a roots. A TVS roots is closer in efficiency to a twin-screw though, so that is an option B, if I don't end up doing twin-screw. Actually, with a twin-screw and E85, I probably wouldn't need an intercooler, but I want to keep IAT as low as possible. Plus, I like the whine of a twin-screw/positive displacement blower too.
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Old 11-21-2017, 02:07 PM   #10
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Fair enough.

Not sure what you mean by boost creep, but I suppose if you do not have total control of the system it would creep at WOT on you.

You could always overwork a larger blower and use a gate on the cold side with a boost controller to always have solid boost at lower RPM.

That being said, a TVS would be pretty friggen sweet to see under the hood.
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