Posted By: Dragula
Max boost for a Hellcat crate Engine - 12/10/22 03:54 AM
What is the max boost a Hellcrate will tolerate over the long haul...
Posted By: Dragula
Re: Max boost for a Hellcat crate Engine - 04/03/23 06:48 PM
You guys are the Tech damit....
Posted By: Dart 500
Re: Max boost for a Hellcat crate Engine - 04/03/23 07:28 PM
Is that just a stock hellcat crate engine? I'd go talk with the hellcat guys and see what boost they're running. I know there is a super simple way to get another 150hp out of them, all depends what you want to do
Posted By: 70gtx1
Re: Max boost for a Hellcat crate Engine - 04/07/23 05:26 PM
From what Ive personally seen, guys that run into trouble are running the 10 percent lower pully, and the smallest upper pulley you can get. Know a few guys that had their blowers explode from being spun to fast with that combo. Once you get around 16 psi, fuel starts to be an issue, and you have to consider e 85.
Posted By: BlakDak71
Re: Max boost for a Hellcat crate Engine - 04/10/23 07:00 PM
I ran a 2.79 upper pulley (17-18psi) on mine on 93 for a couple years with no issues. I switched it to E85 and ran the hell out of it for a couple years before eventually breaking two piston ring lands. Trapped 140mph with a 6 speed at 4000lbs race weight though lol