garys 68

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Just curious if anyone knows of an aftermarket intake for an inexpensive roots type supercharger, like a 177?
The LS supercharger kits (Magna, Whipple, etc) are more than twice the SBC chevy kits. I realize production numbers would be low, but hey, Edelbrock made the twin carb intake. I dont think I've ever seen one of those.
I'm just thinking a carbed, supercharged, LQ4 would be a relatively inexpensive 500hp torque monster.

jmarsa

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Someone makes a roots, I've seen it in the mags. I think it's a 6-71 though.

--JMarsa

73 nova guy

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i wouldn't waste my time with a 142/177 blowers. there very old technology two lobe rotors. The new Whipple and Kenny bell blowers are three and four tip helix rotors much better efficiency.

garys 68

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Just thinking about cost. A 177, single carb could easily support 500hp on an LQ4 with a great torque band. And they're only about $2k.

forcd ind

iTrader: (7)

im sure some co is looking at it, i have seen the 671 mounted on one
prob wouldnt be that hard to use a 4 barl intake, make an adapter to fit a mini blower, use an 8 rib balancer setup, or 6 rib, set it up for 1 belt to run everything-i made up one years ago doing this, it was for a motor that no one made a kit for-i was lucky i had a buddy who let me use his mach shop to cut spacers and stuff

stevied916

iTrader: (30)

A good head/cam combo will support 500hp on a 6 liter as well. If you're shooting for 500 only then I wouldn't waste time with a blower

garys 68

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You missed the key words "torque band". One reason I'm wondering about this combo is for marine use. I've had a boat with 525hp, supercharged (177) 454s. The torque at 2500-3500 rpm blew away NA 525hp 502 cid motors.
For low boost conditions a 177 would be big enough for a 6.0 and would be an economical combo.
GM has the LSA listed as a marine motor on their website, so I guess they thought a superchared LQ motor was too.
http://www.gm.com/experience/technol...LSA_Marine.pdf
The 177, carbed LQ4 would be a cheaper way to get the same results.

holley505

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I saw this also

garys 68

iTrader: (1)

Thanks for the input. I was able to find manifolds for the 6-71 but not anything smaller. The 6-71 is pretty big, it would be nice to find a 177 manifold.
http://www.blowerdriveservice.com/ls1.php
http://www.hawesengineering.com/pages/products.html

schino

iTrader: (14)

ive considered machining a manifold to run a 6-71 blower on my truck. I dont think it would be hard to make something. hell the hawes engineering one you posted is all just welded. ive got six 6-71 blowers and also a 4-71 so if you decide to run a bigger unit i think i could let one of them go

garys 68

iTrader: (1)

There's another advantage to the 177. It's available with a ribbed belt pulley. You can just pin the crank pulley and run a longer accessory belt to drive it.