Quick Question - Crank Pulley
Thread Starter
Intermediate
Joined: Nov 2008
Posts: 48
Likes: 0
From: Houston Texas
Quick Question - Crank Pulley
I'm trying to get more boost out of my MagnaCharger but I've maxed out what I can get with more aggressive supercharger pulleys. So... anyone know what the largest size crank pulley is that will fit on a C5? What manufacturing? Thanks for your tips!
Bobby
Bobby
Racer
Joined: Aug 2008
Posts: 367
Likes: 0
From: Sacramento ca
I know ECS makes a larger crank pulley for more boost. 
http://www.eastcoastsupercharging.co...C%20Parts.html
if you scroll down you will see the oversized pulley meantions 2-3lbs more of boost. Also they have an updated tensioner that helps keep the belt from slipping (worked for me)!
Thanks ECS
Are you intercooled?
What kind of boost are you running?
Are you forged?
I am running 10lbs of boost with a stock crank pulley. I too have considered going to more boost, but have seen posting of people explaining that the magnason superchargers AIT seem to get really high under lots of boost and you nay not see the HP gains that would be expected. I am still considering it myself, but I am not intercooled and I have some other things to do to the car first (Gears / Meth ect)
Check out FUNCOOL his setup is pretty trick I think he is running a 408 with 14lbs on an intercooled maggie, tons of HP and of course TQ
Good luck.
Toby
http://www.eastcoastsupercharging.co...C%20Parts.html
if you scroll down you will see the oversized pulley meantions 2-3lbs more of boost. Also they have an updated tensioner that helps keep the belt from slipping (worked for me)!
Thanks ECSAre you intercooled?
What kind of boost are you running?
Are you forged?
I am running 10lbs of boost with a stock crank pulley. I too have considered going to more boost, but have seen posting of people explaining that the magnason superchargers AIT seem to get really high under lots of boost and you nay not see the HP gains that would be expected. I am still considering it myself, but I am not intercooled and I have some other things to do to the car first (Gears / Meth ect)
Check out FUNCOOL his setup is pretty trick I think he is running a 408 with 14lbs on an intercooled maggie, tons of HP and of course TQ
Good luck.
Toby
Thread Starter
Intermediate
Joined: Nov 2008
Posts: 48
Likes: 0
From: Houston Texas
Thanks ... I'll go check out East Coast and see what they've got. Here are the answers to the questions:
Intercooled - yes
PSI = 8.5 lbs (maxed out pulley config)
CUI = 455 = too big for MP122
Forged pistons
RWHP = 665 (torque also 665)
Racetronix 79lb high impedance injectors
I wish I would have done my homework and realized the blower was too small for my cubes. Now I'm having to get creative to get some mediocre boost. Wanted to get to 15 PSI... I'm going to take some pics and see if y'all think some machining and more aggressive pulleys can be used...
Thanks, Bobby
Intercooled - yes
PSI = 8.5 lbs (maxed out pulley config)
CUI = 455 = too big for MP122
Forged pistons
RWHP = 665 (torque also 665)
Racetronix 79lb high impedance injectors
I wish I would have done my homework and realized the blower was too small for my cubes. Now I'm having to get creative to get some mediocre boost. Wanted to get to 15 PSI... I'm going to take some pics and see if y'all think some machining and more aggressive pulleys can be used...
Thanks, Bobby
Thread Starter
Intermediate
Joined: Nov 2008
Posts: 48
Likes: 0
From: Houston Texas
Need Maggie expert's advice...
In addition to a larger crank pulley, I would like to improve the gear ratio on the blower, if possible. The ECS crank pulley might get me to 11 PSI, but I would like another 4+ PSI.
The 1st link is the front pulley. Is it possible to machine the housing on the pulley shaft to allow it to accommodate a smaller pulley? I currently have the smallest one that "will fit."
http://forums.corvetteforum.com/memb...nt-pulley.html
The 2nd link shows the back pulleys. Same scenario... the red arrow ... can this housing be machined down for a smaller pulley? The blue arrow shows my fuel rail has already been machined to accommodate the largest possible pulley, so no option to change, here.
http://forums.corvetteforum.com/memb...k-pulleys.html
Thanks again for your advice!
Bobby
PS: By the way ... for some reason I can't insert actual photos. I looked at the FAQ but I don't see a "manage attachments" button any where??
The 1st link is the front pulley. Is it possible to machine the housing on the pulley shaft to allow it to accommodate a smaller pulley? I currently have the smallest one that "will fit."
http://forums.corvetteforum.com/memb...nt-pulley.html
The 2nd link shows the back pulleys. Same scenario... the red arrow ... can this housing be machined down for a smaller pulley? The blue arrow shows my fuel rail has already been machined to accommodate the largest possible pulley, so no option to change, here.
http://forums.corvetteforum.com/memb...k-pulleys.html
Thanks again for your advice!
Bobby
PS: By the way ... for some reason I can't insert actual photos. I looked at the FAQ but I don't see a "manage attachments" button any where??
Racer
Joined: Aug 2008
Posts: 367
Likes: 0
From: Sacramento ca
I do not know all that was done to my maggie, but I have the stock crank and 10 lbs of boost. I know that the car was at cartek and had reciepts for machining pulley for extra boost. Also the smaller cubes, stock manifolds probably help the boost a little.
Former Vendor
Joined: Feb 2004
Posts: 10,876
Likes: 8
From: Las Vegas NV
St. Jude Donor '06 & '12
We are also stocking distributors for the Innovators West 8" crank pulley.
http://www.totalperformanceengineeri...roducts_id=380
If you need one, let us know, and we can ship one out to you. Give us a call.. You wont be disappointed with our pricing.. (PLUS FREE SHIPPING!!!)
http://www.totalperformanceengineeri...roducts_id=380
If you need one, let us know, and we can ship one out to you. Give us a call.. You wont be disappointed with our pricing..
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Thread Starter
Intermediate
Joined: Nov 2008
Posts: 48
Likes: 0
From: Houston Texas
Thanks Jeff. I'm definitely game once I get my new fuel system installed. Can't support the ponies at the moment so I ordered an RSI dual in-tank pump kit. So probably May sometime.
Can you look at those pics in my earlier post (links) and tell me if those shaft housings can be machined to accommodate a smaller pulley? Is there a Maggie rep on this forum?
Thanks!
Bobby
Can you look at those pics in my earlier post (links) and tell me if those shaft housings can be machined to accommodate a smaller pulley? Is there a Maggie rep on this forum?
Thanks!
Bobby
2000, boost, c5, corvette, corvetteforum, crank, crankshaft, give, innovators, pulley, pulleys, west
