Pulley/Ported blower and heat soak

DrBlockHed · 03-11-2021, 08:00 PM

So I have my headers ready to go in and am not sure if I wanna port the blower and go with a 2.3 pulley. I live in NJ so the summers can get pretty hot and humid.

Anyone who has a ported blower with a 2.3 pulley, do you ever run into any heat soak issues? I know there will be some heat soak and power loss, I mean more so how often do you find yourself in limp mode. I’m thinking about doing a track day just for fun also at some point but I’m early spring when it’s still in the 60s or so.

I know E is an option but getting E in NJ is a real PITA

I’d like to avoid ice tank/heat exchangers.

So what’s everyone’s experience with a pulley and ported blower?

Dan82679 · 03-11-2021, 08:12 PM

Yes you will Have heat soak. I live in NJ and I have a ported blower stock pulley. My Tuner did not recommend the 2.3 unless cam and heads were done. I know a lot of people who do run the 2.3 so you probably can but gains will be small if any in the summer months.

DrBlockHed · 03-11-2021, 09:06 PM

Quote:

Originally Posted by Dan82679

Yes you will Have heat soak. I live in NJ and I have a ported blower stock pulley. My Tuner did not recommend the 2.3 unless cam and heads were done. I know a lot of people who do run the 2.3 so you probably can but gains will be small if any in the summer months.

So heat soak as far as a loss of power... ever go into limp mode? I’m ok knowing at times I’ll lose power, it happens now in the summer and I’m still 100% stock.

I don’t wanna pulley down and risk any type of damage due to too much heat

Z OH 6 · 03-12-2021, 05:43 AM

Really just depends on how you're running the car. Day to day driving is probably not an issue, nor is drag racing. A road course would be the worst case scenario.

SJFGTO · 03-12-2021, 06:49 AM

I have the lower 9.17 pulley, non ported stock blower. No heat soak issues even in the Georgia heat, in normal street driving. The increase in HP/throttle response was well worth it. On a road course, could be a different story.

2out2sea · 03-12-2021, 07:29 AM

I have ported blower, ported snout, adm reservoir and wx heat exchangers. No heat soak during track days at Barber in Alabama. Temps climb when sitting still, but drop back to 20* or so above ambient when moving. Hope that helps.
Brad

DrBlockHed · 03-12-2021, 09:31 AM

Quote:

Originally Posted by 2out2sea

I have ported blower, ported snout, adm reservoir and wx heat exchangers. No heat soak during track days at Barber in Alabama. Temps climb when sitting still, but drop back to 20* or so above ambient when moving. Hope that helps.
Brad

Did u ever have that setup minus the heat exchangers and reservoir? What made u go that route instead of a 2650?

2out2sea · 03-12-2021, 12:29 PM

2650 wasnt available when I modded my motor. I picked what was easily swapped back to stock. I did everything I was told would give good gains without sacrificing reliability. It's worked well so far. I'm also at the sweet spot for good power without worrying about fueling. Obviously this is just my opinion ymmv.

JSH · 03-12-2021, 01:54 PM

Quote:

Originally Posted by DrBlockHed

Did u ever have that setup minus the heat exchangers and reservoir? What made u go that route instead of a 2650?

1. If you just bolt the 2650 on with no other mods it would likely be around 600-620WHP (can't understand anyone doing this).

2. If you go with a 2650, the other parts I see most often are headers, 103mm throttle body, Rotofab big gulp intake and a 160 thermostat. This will take the car close 650WHP.

3. The car would still need Heads/Cam to make 750WHP.

DrBlockHed · 03-12-2021, 05:43 PM

Quote:

Originally Posted by 2out2sea

2650 wasnt available when I modded my motor. I picked what was easily swapped back to stock. I did everything I was told would give good gains without sacrificing reliability. It's worked well so far. I'm also at the sweet spot for good power without worrying about fueling. Obviously this is just my opinion ymmv.

I dig ur setup, I’m wondering if I can get away without cooling mods. I’ve never been to the track but feel like I may need to take the car a few times

.

h018871 · 03-13-2021, 10:04 AM

Quote:

Originally Posted by 2out2sea

I have ported blower, ported snout, adm reservoir and wx heat exchangers. No heat soak during track days at Barber in Alabama. Temps climb when sitting still, but drop back to 20* or so above ambient when moving. Hope that helps.
Brad

Are you running the stock exhaust and intake?

JSH · 03-13-2021, 11:55 AM

Quote:

Originally Posted by Dan82679

I have a ported blower stock pulley.

How much additional power did it make?

I'm having mine ported in the next few weeks but the car will have the whole shebang - custom valve train, 103mm, 2.4 Griptec, low side FP, 10% lower pulley, LT, HF cats, 104 UL tune. How much more power would you guess?

Dan82679 · 03-13-2021, 06:07 PM

Quote:

Originally Posted by JSH

How much additional power did it make?

I'm having mine ported in the next few weeks but the car will have the whole shebang - custom valve train, 103mm, 2.4 Griptec, low side FP, 10% lower pulley, LT, HF cats, 104 UL tune. How much more power would you guess?

I had more work done with the ported blower but they say it's good for up to 30 hp

BlaqWhole · 03-13-2021, 06:17 PM

Go qith an upgraded blower.

03-11-2021, 08:00 PM	#1
DrBlockHed Drives: 18 ZL1 Convertible Join Date: Jun 2019 Location: NJ Posts: 118	Pulley/Ported blower and heat soak So I have my headers ready to go in and am not sure if I wanna port the blower and go with a 2.3 pulley. I live in NJ so the summers can get pretty hot and humid. Anyone who has a ported blower with a 2.3 pulley, do you ever run into any heat soak issues? I know there will be some heat soak and power loss, I mean more so how often do you find yourself in limp mode. I’m thinking about doing a track day just for fun also at some point but I’m early spring when it’s still in the 60s or so. I know E is an option but getting E in NJ is a real PITA I’d like to avoid ice tank/heat exchangers. So what’s everyone’s experience with a pulley and ported blower?

03-12-2021, 06:49 AM	#5
SJFGTO Oh Oh it's Friday Night! Drives: 2018 ZL1 1LE Nightfall Gray Join Date: Jan 2018 Location: Walton Woods Posts: 1,061	I have the lower 9.17 pulley, non ported stock blower. No heat soak issues even in the Georgia heat, in normal street driving. The increase in HP/throttle response was well worth it. On a road course, could be a different story. __________________ 2018 Camaro ZL1 1LE NFG; ARH 2” headers, catless mids, ARH full exhaust, Lingenfelter 18% lower pulley, ATI Harmonic Balancer, Roto-fab CAI, EE-catch can, TM ported TB, NX Lid, BMR strut tower brace. Aeroforce dual pod interceptor gauges. Tuned by Vengeance Racing!!! 644 HP @ 6250 rpm / 689 trq @ 3660 rpm Four that wanna own me Two that wanna stone me One says she's a friend of mine...

03-11-2021, 08:12 PM	#2
Dan82679 Drives: 2017 ZL1 Join Date: Jul 2019 Location: NJ Posts: 237 View My Garage	Yes you will Have heat soak. I live in NJ and I have a ported blower stock pulley. My Tuner did not recommend the 2.3 unless cam and heads were done. I know a lot of people who do run the 2.3 so you probably can but gains will be small if any in the summer months.

03-12-2021, 05:43 AM	#4
Z OH 6 Drives: 2021 Red Hot ZL1 Join Date: Sep 2020 Location: Gapplebees Posts: 3,084	Really just depends on how you're running the car. Day to day driving is probably not an issue, nor is drag racing. A road course would be the worst case scenario.

03-12-2021, 07:29 AM	#6
2out2sea Drives: 2018 hyper blue ZL1 1LE Join Date: Nov 2018 Location: Alabama Posts: 165	I have ported blower, ported snout, adm reservoir and wx heat exchangers. No heat soak during track days at Barber in Alabama. Temps climb when sitting still, but drop back to 20* or so above ambient when moving. Hope that helps. Brad

03-12-2021, 12:29 PM	#8
2out2sea Drives: 2018 hyper blue ZL1 1LE Join Date: Nov 2018 Location: Alabama Posts: 165	2650 wasnt available when I modded my motor. I picked what was easily swapped back to stock. I did everything I was told would give good gains without sacrificing reliability. It's worked well so far. I'm also at the sweet spot for good power without worrying about fueling. Obviously this is just my opinion ymmv.

03-13-2021, 06:17 PM	#14
BlaqWhole Account Suspended Drives: 2017 Camaro ZL1 A10 Join Date: May 2012 Location: NJ Posts: 7,692	Go qith an upgraded blower.

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