10-71 Roots Blower

***popo8*** · 07-29-2013, 11:27 AM

Originally Posted by firebird_1995

Well make it run 7's!

:thumbup::thumbup::thumbup:

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**firebird_1995** · 07-29-2013, 11:34 AM

What is it about the roots blower that is so popular in nhra over a turbo or centrifugal? It seems like all the fast ones have a big ol huffer on them.

**noice** · 07-29-2013, 12:19 PM

Superchargers will make the most power, because of rules they aren't used that much. Also consistency and staging with a turbo and building boost are hard to do repeatedly.

Centrifugal blowers are becoming better and better every day, they have great response and pretty good efficiency. Also not allowed in some rules.

Best blower is the PSI C & D screw blower, instant power, efficient, and as much power as you dare. Once again limited by rules.

The roots blower has a different less efficient rotor design than the screw blowers but is pretty much accepted by everyone. Makes great power, easy to work on and way cheaper.

**94Blackbird** · 07-29-2013, 09:13 PM

Originally Posted by firebird_1995

What is it about the roots blower that is so popular in nhra over a turbo or centrifugal? It seems like all the fast ones have a big ol huffer on them.

The biggest reason you see the roots blower in NHRA, especially the top level cars like fuel and alcohol is because you can cram a shit load of fuel through them without them locking up.

**noice** · 07-29-2013, 11:15 PM

They have something like 24 injection nozzles for the engine. Most of the fuel is injected after the blower in the down nozzles located just behind the intake valve.

**ZOHAN** · 07-29-2013, 11:42 PM

Originally Posted by noice

Attachment 22368
I bought this today too. LT5 ZR1 style Pro mod chassis. It is rated to 6.5 seconds and ran a BBC with 3 stages of nitrous. My plan is to put a BBC in the red car, but maybe I'll chase a record with it and a LT1.

You obviously have too much money... lol

Making you silky smooth...