Hellcat - (IHI) Supercharger install ?
Last edited by aknovaman; May 9, 2025 at 08:28 AM.
Why couldn't it be a simple vacuum/boost referenced deal like the LSA lol.
If it weren't for that I'd probably have one to play with already.
If I'm misunderstanding how this works by all means, correct away.
Why couldn't it be a simple vacuum/boost referenced deal like the LSA lol.
If it weren't for that I'd probably have one to play with already.
If I'm misunderstanding how this works by all means, correct away.
Why can't you plug that stepper style OEM valve and plumb a mechanical one in in its place? The NIVLAC57 guys just did one. They implemented the OEM valve.
Its like putting a small engine on top of your engine... Look at that monster!
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If you can do heat management properly...they are freaking awesome.
It just depends on what you want.
Stupid long burnouts were cake, and it pulled endlessly to 160mph with ease.
Totally changed my outlook on blower/auto cars.
Turbo cars would start to reel him in on the top end, but he could usually get so far out at the hit that it made for really great street races.
Top of the list is probably a GT350 with a 3 liter Whipple with full exhausts on E85. Spinning it to 8200rpm is amazing.
I would have put a Whipple on my Firehawk if it was easier to do. That's the reason I decided on twin turbos.
If your gonna do it....
Heat management is everything. My car ran the 1/8 at 4500 DA at 6.80 and when heat soaked it ran like 7.25. I added a front mount heat exchanger, big old thing but it only slowed down the heat soaking by a few runs. The red eyes, etc., have the cooler systems that use the AC to cool the A2W intercooler, etc., and those work great. A must have for drag racing, imho. I almost went that route early on with buying a kit I could add to the car, but decided to go the simpler route with the additional heat exchanger.
But, yes, the instant torque is fun and the blower does sound awesome. In addition, the A8 transmission has a first gear ratio of 4.71. Yes, 4.71. With a rear ratio of 2.62. That's like running a TH400 (2.48 first gear) with a 4.98 rear gear! It's crazy. My track has minimal prep and so it was always a big struggle getting the car to hook up.
The other thing that shocked me with the car is that you launch at 1800 rpms. That's what everyone does. Nobody really changes out the converter, and the cars can dip into the 9s with some basic mods and race fuel or E85 and stock converter.
And they weigh 4500 pounds without driver. Hard to believe they hold together so well, like they do. But there are some basic things you have to upgrade first if you are going to run slicks.
In summary, I would encourage anyone who uses one of these superchargers to really research how to keep it cool. The HC IC pumps are weak/pitiful, so that's something that can be greatly improved if building your own system around a IHI blower being installed on some other setup.
He does remote LS stuff all the time and is great to work with, he's tuned all my pump gas turbo cars and I beat on all of them lol.
patrick.guerragroup@gmail.com
Patrick Guerra
The Guerra Group, Inc. |Pat G Tuning
Office: 114 Spokane Avenue | Victoria, TX 77904
Shop: 5002 Lingo Lane | Victoria, TX 77904
361.576.5917 o |361.576.5928 f |713.306.9990 c
Why couldn't it be a simple vacuum/boost referenced deal like the LSA lol.
If it weren't for that I'd probably have one to play with already.
If I'm misunderstanding how this works by all means, correct away.













