purchased 1 pully size smaller........

oneredry · 12-29-2017, 10:14 PM

on my Maggie. Stock is 98MM and just purchased a 95MM...
1) how much boost will the pulley add?
2) will I need to buy a new belt?
3) assuming I'm going to need a re-tune.?

I just also purchased Ted's recommended plugs from another thread I had a while ago. (Thanks!)

Currently its putting down 527ish at the wheels. I'm not thinking needing a fuel upgrade, but eventually will (just not this year) I've already dumped a ton of money into this so its off the table till next Christmas. Still flirting with the 2" headers, but not completely sold on the "is it worth it" cause.
Thanks in advance.

toohighpsi · 12-31-2017, 02:42 PM

The 95mm pulley will give you about 1 psi more boost and will work with your current belt and stock cal on 93 octane, a custom cal will get you the most power out of the extra psi of boost.

Just for reference - the stock belt will work all of the way down to an 80mm pulley. if you want to go to a 75mm or 70mm you'll need a slightly shorter belt.

If you're at sea level, the smallest pulley the stock fuel system (with higher octane) will support is ~90mm. As you go up in altitude you will be able to run smaller to compensate for the lower air density.

Happy New Year!
Mike

laynlo15 · 12-31-2017, 04:54 PM

I run a 90mm pulley for the street with a 93 octane tune, plus a little water/meth injection. I have about 8 lbs on the street and 12 for my track setup with my 80mm pulley. I ran a 95mm pulley with Mikes tune and went 10.82@129.88 with 544 at the wheels then with a Hoosier/Race Star Drag Pack. You'll like the extra power and you should make a few more hp/torque at the wheels. Have fun.

oneredry · 12-31-2017, 11:20 PM

Well this just got interesting. I'm wondering if I can go to the next smaller pulley. I do not have the stock tune, I had it retuned with HPTuners to better suite the A/F ratio. I know smaller pulleys will require a fuel upgrade, but I'm not looking to blow my motor either. So with that:

I should call magnuson and have them change my order from the 95mm to the 93mm and still re-tune it? or think it might be alright with the tune I have. goal is about 550whp. then again I said that with the current set up I have, yet here we are..

laynlo15 · 01-01-2018, 08:11 AM

Remember I run AEM Water/Meth injection for extra fuel with the 93 octane tune. I think you would need to consider that and consider the 90mm. Your very safe at the 95mm on 93 octane. Mike may chime in sometime with his opinion.

hou30guy · 01-01-2018, 11:54 AM

I have the 3.2 pulley on and 6% ati od and id cog and im at 14.5 psi

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hou30guy · 01-01-2018, 11:56 AM

I have a 2.9 pulley but was slipping on the dyno so imma have to buy the left coast 32 front bracket and idler for better belt wrap

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laynlo15 · 01-01-2018, 12:53 PM

hou30, what are all your mods. That's a bunch of boost for the street. So a 3.2 would be a 78mm I think.

hou30guy · 01-01-2018, 12:58 PM

Quote:

Originally Posted by laynlo15

hou30, what are all your mods. That's a bunch of boost for the street. So a 3.2 would be a 78mm I think.

408 iron block stroker forged internals,10.1 compression, btr pds stage 3 blower cam,ls3 port heads,3200 circle d stall,1400cc injectors, fore dual 450 pumps with flex sensor,maggie 2300 jackshaft with od cog and 3.2 pulley,ati 10 rib 6% od balancer, 20 fronts and 18 rears drag pack zl1 wheels. Ummm im sure im missing alot that i have but yeah

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hou30guy · 01-01-2018, 12:59 PM

I have all of the sc pullies 2.9 up to 3.6

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ShizzySupra · 01-02-2018, 12:44 PM

One of the biggest difference makers on these maggies is the TB opening. Upgrading to a 103 to get more air flow in the rotors and a large diameter intake starts to make them shine when you are maxing them out.

hou30guy · 01-02-2018, 02:03 PM

102mm nick williams boosted tb you mean?

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oneredry · 01-02-2018, 02:37 PM

ok. so 103 TB. Check. can you supply a link to one? I know Pray or someone did some porting jobs, but not sure if its related

To digress with this, Will I need a tune on the pulley I will be getting.

Here are some pictures of what it is after it was re-tuned with HPTuners (from the canned SCT tune, which was rich to begin with)

hou30guy · 01-02-2018, 05:21 PM

Rich is a lower afr number like 10 to 11 afr

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12-29-2017, 10:14 PM	#1
oneredry HYPER SS Drives: 2016 Supercharged 2SS Join Date: Feb 2014 Location: Troy OH Posts: 1,252	purchased 1 pully size smaller........ on my Maggie. Stock is 98MM and just purchased a 95MM... 1) how much boost will the pulley add? 2) will I need to buy a new belt? 3) assuming I'm going to need a re-tune.? I just also purchased Ted's recommended plugs from another thread I had a while ago. (Thanks!) Currently its putting down 527ish at the wheels. I'm not thinking needing a fuel upgrade, but eventually will (just not this year) I've already dumped a ton of money into this so its off the table till next Christmas. Still flirting with the 2" headers, but not completely sold on the "is it worth it" cause. Thanks in advance. __________________ Ordered: 1/15/2016 2000 status 02/01/16 3000 status 02/29/16 3400 status 03/07/16 TPW of 03/14/16 4200 status 03/17/16 in transit! Delivered 03/23/16 2SS Hyper Blue \| 6M \| NPP \| Mag ride \| ceramic white Int. \| Black out bow ties \| P3 Gauge\| Front splitter. \| 6 pot upgraded brembo brakes. \| Magnuson Supercharger/95MM pulley \| Rotofab Intake \| ZL1 side skirts \| HRE FF04 wheels - Michelin PSS4 \| ZL1 add ons rock guards and lift points. \| AWE touring - resinated catback with link pipes.

12-31-2017, 11:20 PM	#4
oneredry HYPER SS Drives: 2016 Supercharged 2SS Join Date: Feb 2014 Location: Troy OH Posts: 1,252	Well this just got interesting. I'm wondering if I can go to the next smaller pulley. I do not have the stock tune, I had it retuned with HPTuners to better suite the A/F ratio. I know smaller pulleys will require a fuel upgrade, but I'm not looking to blow my motor either. So with that: I should call magnuson and have them change my order from the 95mm to the 93mm and still re-tune it? or think it might be alright with the tune I have. goal is about 550whp. then again I said that with the current set up I have, yet here we are.. __________________ Ordered: 1/15/2016 2000 status 02/01/16 3000 status 02/29/16 3400 status 03/07/16 TPW of 03/14/16 4200 status 03/17/16 in transit! Delivered 03/23/16 2SS Hyper Blue \| 6M \| NPP \| Mag ride \| ceramic white Int. \| Black out bow ties \| P3 Gauge\| Front splitter. \| 6 pot upgraded brembo brakes. \| Magnuson Supercharger/95MM pulley \| Rotofab Intake \| ZL1 side skirts \| HRE FF04 wheels - Michelin PSS4 \| ZL1 add ons rock guards and lift points. \| AWE touring - resinated catback with link pipes.

01-02-2018, 12:44 PM	#11
ShizzySupra Drives: 16' Camaro 2SS Join Date: Sep 2015 Location: Oregon Posts: 381	One of the biggest difference makers on these maggies is the TB opening. Upgrading to a 103 to get more air flow in the rotors and a large diameter intake starts to make them shine when you are maxing them out. __________________ @DeathWatchCamaro on Insta 993whp Magnuson 2.3R 9.5 @ 145, Magnuson 2300, Full Weight 2SS, 17’s (810whp)

01-02-2018, 02:37 PM	#13
oneredry HYPER SS Drives: 2016 Supercharged 2SS Join Date: Feb 2014 Location: Troy OH Posts: 1,252	ok. so 103 TB. Check. can you supply a link to one? I know Pray or someone did some porting jobs, but not sure if its related To digress with this, Will I need a tune on the pulley I will be getting. Here are some pictures of what it is after it was re-tuned with HPTuners (from the canned SCT tune, which was rich to begin with) __________________ Ordered: 1/15/2016 2000 status 02/01/16 3000 status 02/29/16 3400 status 03/07/16 TPW of 03/14/16 4200 status 03/17/16 in transit! Delivered 03/23/16 2SS Hyper Blue \| 6M \| NPP \| Mag ride \| ceramic white Int. \| Black out bow ties \| P3 Gauge\| Front splitter. \| 6 pot upgraded brembo brakes. \| Magnuson Supercharger/95MM pulley \| Rotofab Intake \| ZL1 side skirts \| HRE FF04 wheels - Michelin PSS4 \| ZL1 add ons rock guards and lift points. \| AWE touring - resinated catback with link pipes.

12-31-2017, 02:42 PM	#2
toohighpsi Drives: 2015 C7 Z06 M7 Join Date: Dec 2012 Location: So-Cal Posts: 665	The 95mm pulley will give you about 1 psi more boost and will work with your current belt and stock cal on 93 octane, a custom cal will get you the most power out of the extra psi of boost. Just for reference - the stock belt will work all of the way down to an 80mm pulley. if you want to go to a 75mm or 70mm you'll need a slightly shorter belt. If you're at sea level, the smallest pulley the stock fuel system (with higher octane) will support is ~90mm. As you go up in altitude you will be able to run smaller to compensate for the lower air density. Happy New Year! Mike

12-31-2017, 04:54 PM	#3
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,882	I run a 90mm pulley for the street with a 93 octane tune, plus a little water/meth injection. I have about 8 lbs on the street and 12 for my track setup with my 80mm pulley. I ran a 95mm pulley with Mikes tune and went 10.82@129.88 with 544 at the wheels then with a Hoosier/Race Star Drag Pack. You'll like the extra power and you should make a few more hp/torque at the wheels. Have fun.

01-01-2018, 08:11 AM	#5
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,882	Remember I run AEM Water/Meth injection for extra fuel with the 93 octane tune. I think you would need to consider that and consider the 90mm. Your very safe at the 95mm on 93 octane. Mike may chime in sometime with his opinion.

01-01-2018, 11:54 AM	#6
hou30guy Drives: 2011 convertible 2ss/rs Join Date: Sep 2015 Location: Houston Posts: 971	I have the 3.2 pulley on and 6% ati od and id cog and im at 14.5 psi Sent from my SM-N950U using Tapatalk

01-01-2018, 11:56 AM	#7
hou30guy Drives: 2011 convertible 2ss/rs Join Date: Sep 2015 Location: Houston Posts: 971	I have a 2.9 pulley but was slipping on the dyno so imma have to buy the left coast 32 front bracket and idler for better belt wrap Sent from my SM-N950U using Tapatalk

01-01-2018, 12:53 PM	#8
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,882	hou30, what are all your mods. That's a bunch of boost for the street. So a 3.2 would be a 78mm I think.

01-01-2018, 12:59 PM	#10
hou30guy Drives: 2011 convertible 2ss/rs Join Date: Sep 2015 Location: Houston Posts: 971	I have all of the sc pullies 2.9 up to 3.6 Sent from my SM-N950U using Tapatalk

01-02-2018, 02:03 PM	#12
hou30guy Drives: 2011 convertible 2ss/rs Join Date: Sep 2015 Location: Houston Posts: 971	102mm nick williams boosted tb you mean? Sent from my SM-N950U using Tapatalk

01-02-2018, 05:21 PM	#14
hou30guy Drives: 2011 convertible 2ss/rs Join Date: Sep 2015 Location: Houston Posts: 971	Rich is a lower afr number like 10 to 11 afr Sent from my SM-N950U using Tapatalk

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