MILD THUNDER

iTrader: (3)

I know "Mike Tkach" on here, replaced a set of his 10-71's, with whipple 8.3L carb'd versions. All his stuff, linkage, carbs, snouts, etc, bolted onto the whipples. They are pretty cool. The bypass assembly really helps them idle nicely.

KAAMA

iTrader: (1)

Mild---sounds interesting...perhaps they're referred to as the "8.3L" now??? thanx

Mike Tkach or anyone who has converted their Roots style superchargers to the whipple direct bolt-on replacement package/kit, please chime in and let me know what your experiences are....happy or not happy---the good and the bad. Thanx again

MILD THUNDER

iTrader: (3)

Mark I'm sure mike can chime in, but I can tell you he's very happy with his Whipples so far. He has a 588ci dart 355 cnc heads, hyd roller setup, making 1200hp on 93 gas. They idle fantastically. I believe everything bolted up nicely.

The 5.0 whipple and 8.3 are different blowers, obviously the 8.3 is larger. I believe both are avail for carb or efi.

I don't know whether it's true but I have heard guys claim 100hp gain by switching from a big roots to a big whipple, at the same boost level.

mike tkach

iTrader: (3)

i have not responded because i was out on my cruiserfor the weekend,yes everything from the 10.71s bolted to the 8.3L whippels.on another note,i took the 16.71 blower off of a 572 engine i have and put the 8.3 on it and made almost 200 more hp.a roots blower eats up a lot of power to spin it ,the screw blower has way less parasitic loss witch coralates to more crankshaft hp.also,the whippel 5L and the 8.3L are both avalible in top or rear entry.

MILD THUNDER

iTrader: (3)

Mark I say try the whipple . I think you'll be pleasantly surprised, esp a guy like you who is all about a good idle

mike tkach

iTrader: (3)

i am running some pretty snotty cams and i have a good idle,this is because the bypass valve whipple incorperates in the supercharger.i dont want to pizz anybody off but i will tell you that my 8.3L superchargers are superior to a 14.71.NO COMPARISON.the whipple cost more but you get what you pay for.i dont know dustin but he did talk me threw a efi setup i did for a guy abouy 6 years ago and he is a very smart person.

Young Performance

Mild, they are actually the same blower. That's why the 5.0L is so large.....because it's really an 8.3 L. They are just driven from different rotors. One drives on the male rotor and the other drives on the female rotor. That changes the internal step up in the blower. Externally, they are the same. And yes, they are available in both top entry and rear entry (axial).

Kamma, depending on whether you want the 5L or the 8.3L and which finish you want (black, blue, polished), the list price runs anywhere from about 6K-7K for just the blower. Of course, that is list price. e can do much better than that price. Let me know if I can help.
Eddie

MILD THUNDER

iTrader: (3)

Good info Eddie. I wasn't sure on the case size difference if any, but was pretty sure the 8.3L moved more displacement than the 5.0L?

Which blower would you prefer in your typical bbc marine build , say making 1000-1200 hp level? (Assuming carbed let's say)

ICDEDPPL

iTrader: (1)

The only reason not to go with a screw blower is price, roots vs screw = no contest. Screw blower is better in every way, intake temp, power, parasidic loss, idle quality, efficiency..etc.

Young Performance

For that power level, I would prefer a 4L. However, it's not available in a top mount. For a carb engine at 1000 hp or less, I would use a 3.3L. Anything more than that would require a 5L. Personally, I wouldn't go to the 8.3 until I was looking for well over 1300-1400. But, I wouldn't be doing it with a carb anyway. It would be EFI. We have made as much as almost 1300 with a 4L and over 1400 with a 5L, but they were EFI.
Eddie