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?

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

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

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.

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.

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

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.

oooops. double post

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

Do they have data?

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