max boost from a maggie - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

smokum · 12-11-2013, 10:06 PM

I have a 417 maggie car now. Just wondering what the max boost they will put out safely. Planning on upgrading the 8 rib and building a 10 rib setup or maybe 12 rib.

2SS45th · 12-12-2013, 09:55 AM

I run 16.5psi on a 10 rib. I don't have any belt slip, and can pulley down once more.

PIGSMOKR · 12-12-2013, 11:10 AM

This is prob a stupid question but, where do u find the different rib belts and pulleys? I have found the regular 6 rib ones.

smokum · 12-12-2013, 11:38 AM

Lingenfelter has a 10 rib kit. But it is not cheap. I am machining my own setup because i have a machine shop at my disposal.

Unreal · 12-12-2013, 02:43 PM

Belts are available at any auto store, amazon, etc.

Max boost will be determined by heads/cam/etc. You could put a restrictor plate between the blower and see 30psi if you want, or with great flowing heads/motor you may see a lot less. The Maggie has a set amount of air it will move, not set pressure.

1LESSPROBLEM · 12-12-2013, 02:45 PM

LeftCoast'32 has an 8 rib thats reasonably priced. No belt slip. They sell a blower pulley with grooves cut perpendicular to the grooves, no slip whatsoever. On that 417 depending on cam, head flow, and CR, you should see in the 16-18 range on an overdriven rear and overdriven front with a 2.8-2.9 blower pulley

smokum · 12-12-2013, 05:40 PM

Does the pulley come with a six pack of belts? Or is it not to bad on them. Great concept. Just wondering how reliable it is? Meaning belt fray or breakage. If it works im in for it.

Unreal · 12-12-2013, 06:05 PM

The grooved pulleys like that typically do eat belts faster than normal. Just change the belt every other oil change or so and you should be fine.

Supercharged SS · 12-12-2013, 11:13 PM

Quote:

Originally Posted by 1LESSPROBLEM

LeftCoast'32 has an 8 rib thats reasonably priced. No belt slip. They sell a blower pulley with grooves cut perpendicular to the grooves, no slip whatsoever. On that 417 depending on cam, head flow, and CR, you should see in the 16-18 range on an overdriven rear and overdriven front with a 2.8-2.9 blower pulley

The RIP pulley helped with the belt slip but def didn't cure it. In the high rpms the slip was still present. I ran an 8 rib 3.2 at the track. Car was going 10.06-.08 (on 6 passes). Changed it to a 3.4 non rip pulley and the care went 10.0 on the last 4 passes. The was no additional belt wear running the RIP pulley and I used it for a season.

Without the spacer you won't see anywhere near 18 psi, especially on a 417.

Blue70SS · 12-14-2013, 11:45 AM

Quote:

Originally Posted by Supercharged SS

The RIP pulley helped with the belt slip but def didn't cure it. In the high rpms the slip was still present. I ran an 8 rib 3.2 at the track. Car was going 10.06-.08 (on 6 passes). Changed it to a 3.4 non rip pulley and the care went 10.0 on the last 4 passes. The was no additional belt wear running the RIP pulley and I used it for a season.

Without the spacer you won't see anywhere near 18 psi, especially on a 417.

What's working for the spacer on a 417..... 1/2" or 1" thermal spacer? Benefits of going from 1/2" to 1" worth it? Hood touches, but works on the 1/2", 1" definitely would need a new hood.

old motorhead · 12-14-2013, 12:39 PM

If you're serious about big boost on a 417 cubed motor, do yourself a favor, and get a bigger blower or a couple of turbo's. Maggies are great blowers (I'm running two of them), but they are out of their league with big boost on big cubes.

Supercharged SS · 12-14-2013, 12:41 PM

Quote:

Originally Posted by Blue70SS

What's working for the spacer on a 417..... 1/2" or 1" thermal spacer? Benefits of going from 1/2" to 1" worth it? Hood touches, but works on the 1/2", 1" definitely would need a new hood.

The spacer isn't cube specific. What happens at high boost is that the air packs up. Raising the blower allows more room for the air to keep if from packing.

No idea on the 1". Only RDS can answer that.

Supercharged SS · 12-14-2013, 12:42 PM

Quote:

Originally Posted by old motorhead

If you're serious about big boost on a 417 cubed motor, do yourself a favor, and get a bigger blower or a couple of turbo's. Maggies are great blowers (I'm running two of them), but they are out of their league with big boost on big cubes.

Amen.

smokum · 12-14-2013, 03:15 PM

I agree. But im on a limited budget. I got a steal on a fully built adm built lpe 417 maggie car. It has all the bells and whistles. I just want all i can get with what i have to work with. Im going 15 inch conversion slicks and skinnies 3.73 gears. Car has full pedders supercar suspension. Next build will be big. Lsx twin turbo.

12-11-2013, 10:06 PM	#1
smokum Drives: 2010 2ssrs Join Date: May 2013 Location: DFW Posts: 827 View My Garage	max boost from a maggie I have a 417 maggie car now. Just wondering what the max boost they will put out safely. Planning on upgrading the 8 rib and building a 10 rib setup or maybe 12 rib.

12-12-2013, 09:55 AM	#2
2SS45th Drives: 11 Seconds or Faster Join Date: May 2012 Location: Arvada, Colorado Posts: 2,797 View My Garage	I run 16.5psi on a 10 rib. I don't have any belt slip, and can pulley down once more. __________________ I Ain't About That Stock Life.

12-12-2013, 02:43 PM	#5
Unreal Drives: 2006 Z06 Join Date: Oct 2010 Location: Gilbert, AZ Posts: 5,712	Belts are available at any auto store, amazon, etc. Max boost will be determined by heads/cam/etc. You could put a restrictor plate between the blower and see 30psi if you want, or with great flowing heads/motor you may see a lot less. The Maggie has a set amount of air it will move, not set pressure. __________________ Nick Corvette Z06 -1200ish rwhp

12-12-2013, 02:45 PM	#6
1LESSPROBLEM Drives: blown Join Date: Nov 2013 Location: between here and there Posts: 147	LeftCoast'32 has an 8 rib thats reasonably priced. No belt slip. They sell a blower pulley with grooves cut perpendicular to the grooves, no slip whatsoever. On that 417 depending on cam, head flow, and CR, you should see in the 16-18 range on an overdriven rear and overdriven front with a 2.8-2.9 blower pulley __________________ VF Commodore LSA Heads Cam Weld

12-12-2013, 06:05 PM	#8
Unreal Drives: 2006 Z06 Join Date: Oct 2010 Location: Gilbert, AZ Posts: 5,712	The grooved pulleys like that typically do eat belts faster than normal. Just change the belt every other oil change or so and you should be fine. __________________ Nick Corvette Z06 -1200ish rwhp

12-12-2013, 11:10 AM	#3
PIGSMOKR 2010 Lingenfelter SS Drives: 2010 lingenfelter ss Join Date: Sep 2013 Location: leland nc Posts: 487	This is prob a stupid question but, where do u find the different rib belts and pulleys? I have found the regular 6 rib ones.

12-12-2013, 11:38 AM	#4
smokum Drives: 2010 2ssrs Join Date: May 2013 Location: DFW Posts: 827 View My Garage	Lingenfelter has a 10 rib kit. But it is not cheap. I am machining my own setup because i have a machine shop at my disposal.

12-12-2013, 05:40 PM	#7
smokum Drives: 2010 2ssrs Join Date: May 2013 Location: DFW Posts: 827 View My Garage	Does the pulley come with a six pack of belts? Or is it not to bad on them. Great concept. Just wondering how reliable it is? Meaning belt fray or breakage. If it works im in for it.

12-14-2013, 12:39 PM	#11
old motorhead Drives: Maggie blown LS3 vette Join Date: Aug 2009 Location: SE TX Posts: 1,490	If you're serious about big boost on a 417 cubed motor, do yourself a favor, and get a bigger blower or a couple of turbo's. Maggies are great blowers (I'm running two of them), but they are out of their league with big boost on big cubes.

12-14-2013, 03:15 PM	#14
smokum Drives: 2010 2ssrs Join Date: May 2013 Location: DFW Posts: 827 View My Garage	I agree. But im on a limited budget. I got a steal on a fully built adm built lpe 417 maggie car. It has all the bells and whistles. I just want all i can get with what i have to work with. Im going 15 inch conversion slicks and skinnies 3.73 gears. Car has full pedders supercar suspension. Next build will be big. Lsx twin turbo.