purchased 1 pully size smaller........ - Page 2

hou30guy · 01-02-2018, 05:22 PM

If i remember right you wanna be some where around 11.2 to 11.7 depending on set. Anything lower than 11 ur pig rich

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laynlo15 · 01-02-2018, 11:56 PM

11.2 is rich, I think mine is around 12.2 to 12.5 on the dyno and data logging at the track. To rich is loosing hp

oneredry · 01-03-2018, 12:36 AM

Quote:

Originally Posted by laynlo15

11.2 is rich, I think mine is around 12.2 to 12.5 on the dyno and data logging at the track. To rich is loosing hp

So your suggestion by my screen shots, that I need a re-tune? or will the lower pulley even it out?

hou30guy · 01-03-2018, 05:03 AM

Retune as 12.5 on a wot is wayyy to lean

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wnta1ss · 01-03-2018, 05:12 AM

It should be pointed out that hou30guy has an older LS motor with port injection. This car is an LT1 with direct injection, which could need to be tuned differently than the old port-injected setups. He is talking about a different engine.

laynlo15 · 01-03-2018, 06:37 AM

That is correct that his is a Jack Shaft Maggie with an LS motor. The direct injection is a totally different breed for tuning and afr, timing, etc. My last dyno when mine made 669 rwhp it was right around 12.3, pulls before that have all been above 12 but not over 12.5 at wot.

oneredry · 01-03-2018, 08:12 AM

yeah, lets NOT talk about LS engines. now I seem to be a bit more confused. after re-reading the thread again...

hou30guy · 01-03-2018, 08:15 AM

My fault if this isnt a ls fourm, when Tapatalk pops up a notification on my phone it dont tell me ls or lt

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laynlo15 · 01-03-2018, 10:52 AM

LT1 and Lt4 forum.

JANNETTYRACING · 01-06-2018, 01:31 PM

Quote:

Originally Posted by oneredry

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.

I think Mike did a pretty good job of answering your questions, if there is any thing missed please ask.

Quote:

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

oneredry · 01-06-2018, 01:44 PM

Copy that. Thanks Ted!

oneredry · 01-15-2018, 04:05 PM

So I just received my new pulley in the mail. I would expect bolts to come with it? Unless the bolts that are holding on the current pulley is NOT tq to yield bolts. I'm guessing that's fine to just use the old bolts that holds the pulley on the snout? will I need Loctite?

JANNETTYRACING · 01-15-2018, 04:37 PM

Quote:

Originally Posted by oneredry

So I just received my new pulley in the mail. I would expect bolts to come with it? Unless the bolts that are holding on the current pulley is NOT tq to yield bolts. I'm guessing that's fine to just use the old bolts that holds the pulley on the snout? will I need Loctite?

Not torque to yield, reuse bolts, yes use loctite.

laynlo15 · 01-15-2018, 08:45 PM

Which pulley did you end up getting?

01-03-2018, 08:12 AM	#21
oneredry HYPER SS Drives: 2016 Supercharged 2SS Join Date: Feb 2014 Location: Troy OH Posts: 1,252	yeah, lets NOT talk about LS engines. now I seem to be a bit more confused. after re-reading the thread again... __________________ 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.

01-06-2018, 01:44 PM	#25
oneredry HYPER SS Drives: 2016 Supercharged 2SS Join Date: Feb 2014 Location: Troy OH Posts: 1,252	Copy that. Thanks Ted! __________________ 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.

01-15-2018, 04:05 PM	#26
oneredry HYPER SS Drives: 2016 Supercharged 2SS Join Date: Feb 2014 Location: Troy OH Posts: 1,252	So I just received my new pulley in the mail. I would expect bolts to come with it? Unless the bolts that are holding on the current pulley is NOT tq to yield bolts. I'm guessing that's fine to just use the old bolts that holds the pulley on the snout? will I need Loctite? __________________ 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, 05:22 PM	#15
hou30guy Drives: 2011 convertible 2ss/rs Join Date: Sep 2015 Location: Houston Posts: 971	If i remember right you wanna be some where around 11.2 to 11.7 depending on set. Anything lower than 11 ur pig rich Sent from my SM-N950U using Tapatalk

01-02-2018, 11:56 PM	#16
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,882	11.2 is rich, I think mine is around 12.2 to 12.5 on the dyno and data logging at the track. To rich is loosing hp

01-03-2018, 05:03 AM	#18
hou30guy Drives: 2011 convertible 2ss/rs Join Date: Sep 2015 Location: Houston Posts: 971	Retune as 12.5 on a wot is wayyy to lean Sent from my SM-N950U using Tapatalk

01-03-2018, 05:12 AM	#19
wnta1ss Drives: 2017 Camaro 1SS Join Date: Aug 2016 Location: NH Posts: 1,713	It should be pointed out that hou30guy has an older LS motor with port injection. This car is an LT1 with direct injection, which could need to be tuned differently than the old port-injected setups. He is talking about a different engine.

01-03-2018, 06:37 AM	#20
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,882	That is correct that his is a Jack Shaft Maggie with an LS motor. The direct injection is a totally different breed for tuning and afr, timing, etc. My last dyno when mine made 669 rwhp it was right around 12.3, pulls before that have all been above 12 but not over 12.5 at wot.

01-03-2018, 08:15 AM	#22
hou30guy Drives: 2011 convertible 2ss/rs Join Date: Sep 2015 Location: Houston Posts: 971	My fault if this isnt a ls fourm, when Tapatalk pops up a notification on my phone it dont tell me ls or lt Sent from my SM-N950U using Tapatalk

01-03-2018, 10:52 AM	#23
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,882	LT1 and Lt4 forum.

01-15-2018, 08:45 PM	#28
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,882	Which pulley did you end up getting?

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