LT4 Blower Spacer and Thermal Blanket?

JSH · 02-02-2021, 07:43 AM

Anyone using a LT4 Blower Spacer and/or Thermal Blanket?

What has been your experience? Do you see lower temps? Is it worth $500?

Z OH 6 · 02-02-2021, 08:46 AM

Who makes them? I had some FI Interchillers spacers and blanket on my Hellcat, it lowered the IATs about 12F.

KingLT1 · 02-02-2021, 08:51 AM

My brother had them on his C7Z before he went to a bigger PD unit. I don't recall how much they helped.

JSH · 02-02-2021, 09:01 AM

Quote:

Originally Posted by Z OH 6

Who makes them? I had some FI Interchillers spacers and blanket on my Hellcat, it lowered the IATs about 12F.

https://fiinterchillers.com/ seems to have the most search hits, but I got the idea from jokerz who offers them with their Full Tilt ported blower pkg.

Seems like a good idea.

Z OH 6 · 02-02-2021, 09:04 AM

Quote:

Originally Posted by JSH

https://fiinterchillers.com/ seems to have the most search hits, but I got the idea from jokerz who offers them with their Full Tilt ported blower pkg.

Seems like a good idea.

I wasn't aware that they had any for the LT4, I do know they have them for the LSA.

JSH · 02-02-2021, 09:44 AM

And they also offer PWR coolant bricks

Z OH 6 · 02-02-2021, 10:20 AM

Quote:

Originally Posted by JSH

And they also offer PWR coolant bricks

I wouldn't waste any money on those bricks, better off to just buy a Magnuson 2650R if you're going that far with the stock blower. The stock blower really only makes sense to have it ported which is good for about 40whp and it doesn't cost much to do it. Add a lower pulley to spin it no more than 15-18%, after that, you're better off just going with a larger blower.

JSH · 02-02-2021, 11:12 AM

Quote:

Originally Posted by Z OH 6

I wouldn't waste any money on those bricks, better off to just buy a Magnuson 2650R if you're going that far with the stock blower. The stock blower really only makes sense to have it ported which is good for about 40whp and it doesn't cost much to do it. Add a lower pulley to spin it no more than 15-18%, after that, you're better off just going with a larger blower.

Yea, I see that KaTech uses the 2650 on their $22k, 925 flywheel pkg and they only add a cam and pulley, which indicates I could make 1000-1100 flywheel with a 2650 alone, but it would be another $10k or so when done

Alain · 02-02-2021, 06:23 PM

I have the blanket and spacers on my Hellcat and it definitely keeps the temperatures down. I never put the car on a dyno so i couldn't tell you with any certainty how much horsepower i gained. I've read that it bumps up the horsepower by as much as 40.

The temperatures do run cooler therefore it stands to reason that the car will adjust the timing and make more power. My Hellcat does feels like it pulls a bit stronger than before i did the install.

MY personal opinion is that if you have to pay someone to do the work for the install than it's not worth it. It's cheap horsepower, the kit itself if cheap but if you have to pay labor to have it installed, it kind of defeats the purpose.

Alain · 02-02-2021, 06:24 PM

oooops. double post

Dan82679 · 02-03-2021, 07:10 AM

Do those PWR bricks offer better cooling? Or are they only high boost applications so they don't collapse?

JSH · 02-03-2021, 07:44 AM

Quote:

Originally Posted by Dan82679

Do those PWR bricks offer better cooling? Or are they only high boost applications so they don't collapse?

They're marketed as SC air temp reduction items. Around 10° as I recall, so a spacer, blanket, and brick might be 20° or so, depending on how fast you're spinning it

Dan82679 · 02-03-2021, 07:53 AM

Quote:

Originally Posted by JSH

They're marketed as SC air temp reduction items. Around 10° as I recall, so a spacer, blanket, and brick might be 20° or so

Do they have data?

JSH · 02-03-2021, 08:14 AM

Quote:

Originally Posted by Dan82679

Do they have data?

I'm sure they do. https://www.crracing.com/?s=PWR%E2%8...t_type=product

02-02-2021, 07:43 AM	#1
JSH Drives: '20 ZL1 1LE Shadow Grey Metallic Join Date: Jun 2020 Location: Denver, CO Posts: 874	LT4 Blower Spacer and Thermal Blanket? Anyone using a LT4 Blower Spacer and/or Thermal Blanket? What has been your experience? Do you see lower temps? Is it worth $500? __________________ Phase I 7/20: Stock SC and TB, 10% pulley Custom valve train/PP heads Kooks Long tubes and Hi-flow cats Custom heat exchangers, RotoFab Phase II Mods In-progress Today Kong ported blower/snout, NW 103mm ported TB, FII blower spacer plates & thermal reduction blanket, Griptec snout pulley 2.4, MMS Mild catch can DSX low side pump

02-02-2021, 08:46 AM	#2
Z OH 6 Drives: 2021 Red Hot ZL1 Join Date: Sep 2020 Location: GA Posts: 744	Who makes them? I had some FI Interchillers spacers and blanket on my Hellcat, it lowered the IATs about 12F. __________________ 2021 Camaro ZL1 - Red Hot A10 - Vengeance Racing Stage III - 678whp SAE/693whp STD on pump 93

02-02-2021, 08:51 AM	#3
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 4,331	My brother had them on his C7Z before he went to a bigger PD unit. I don't recall how much they helped. __________________ 2016 NGM 1SS A8 Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/LT5 TB/Rotofab Big Gulp/E60/Cat Deletes/NPP Axle back Perf. times- 1.75 60ft 10.5 @135 1/4mi Dragy Approved...No prep Full weight on 20's.

02-02-2021, 09:44 AM	#6
JSH Drives: '20 ZL1 1LE Shadow Grey Metallic Join Date: Jun 2020 Location: Denver, CO Posts: 874	And they also offer PWR coolant bricks __________________ Phase I 7/20: Stock SC and TB, 10% pulley Custom valve train/PP heads Kooks Long tubes and Hi-flow cats Custom heat exchangers, RotoFab Phase II Mods In-progress Today Kong ported blower/snout, NW 103mm ported TB, FII blower spacer plates & thermal reduction blanket, Griptec snout pulley 2.4, MMS Mild catch can DSX low side pump

02-02-2021, 06:23 PM	#9
Alain Drives: 2016 Challenger Hellcat, 2018 ZL1LE Join Date: Dec 2009 Location: Northern NJ Posts: 2,935	I have the blanket and spacers on my Hellcat and it definitely keeps the temperatures down. I never put the car on a dyno so i couldn't tell you with any certainty how much horsepower i gained. I've read that it bumps up the horsepower by as much as 40. The temperatures do run cooler therefore it stands to reason that the car will adjust the timing and make more power. My Hellcat does feels like it pulls a bit stronger than before i did the install. MY personal opinion is that if you have to pay someone to do the work for the install than it's not worth it. It's cheap horsepower, the kit itself if cheap but if you have to pay labor to have it installed, it kind of defeats the purpose. __________________ 2016 Challenger Hellcat /B5 blue/Sepia interior/Brass Monkey Wheels/ 2018 ZL1 1LE/Red hot 2019 Shellby GT 350R/ Oxford white/ Matte Black Stripes/ Carbon Fiber Dash/ Electronics Package #413

02-02-2021, 06:24 PM	#10
Alain Drives: 2016 Challenger Hellcat, 2018 ZL1LE Join Date: Dec 2009 Location: Northern NJ Posts: 2,935	oooops. double post __________________ 2016 Challenger Hellcat /B5 blue/Sepia interior/Brass Monkey Wheels/ 2018 ZL1 1LE/Red hot 2019 Shellby GT 350R/ Oxford white/ Matte Black Stripes/ Carbon Fiber Dash/ Electronics Package #413

02-03-2021, 07:10 AM	#11
Dan82679 Drives: 2017 ZL1 Join Date: Jul 2019 Location: NJ Posts: 112 View My Garage	Do those PWR bricks offer better cooling? Or are they only high boost applications so they don't collapse?

User Name		Remember Me?
Password