We did experience the notorious headlift at 23psi. On the dyno, we were pressurizing the coolant system and had a lot of coolant come out of the overflow tank on a cold run.

What does this mean for us? The RnD car is going under the knife for built block with ARP L19 head studs to eliminate the bolts from stretching. This kit just makes incredible power!

What does this mean for you? Adjust the boost to a more manageable level on a stock motor by setting the valve to open up and bleed off what you don't want to ingest. That is how this kit will arrive to you. If you want 800whp some day then you build the bottom end.

That is ancient news. SOHO and Mazworx are the only 2 that have the issue remedied.

Welcome to the club. Now it is gonna get expensive if you want more power. Head studs alone won't do chit.

Money wise, you are looking at 15 to 20k just for the engine. It also depends if you plasma cut the top of the block. If so, it is garbage and you will be looking for a junk yard long block to build off of. Why in the heck did you push the power up this high on a stock engine?

Eugene T. didn't save you from yourself. No other reputable tuner would have done it. They would have refused. So much for how great he is. BS......

We were very much so aware of the potential of this. We also very much so wanted to see just how much boost it took. We obviously went into this knowing we were on a fuse. I already had parts coming for this build. I am well aware of the cost. Eugene fully expressed his concern over the amount of boost we were running. We agreed but wanted to push limits. Do not for a second think this has anything to do with his tuning ability.

We went in knowing we were going to build this thing at some point. Just weren't sure when and now we know. The owner of the car wants to run 800whp.

I hear Dynosty has the best solution for a fix and we will definitely be using them.

That's a NO.... You have fallen victim to the tons of misinformation that is out there.

You are entitled to your opinion just like I have heard SOHO claims they have it figured out and they do not. I guess we will see.

Prove that SOHO doesn't have it figured out. I beat you can't. I know you have an issue with them. So, unless you can prove it you need to give credit to them for what they have accomplished.

I have a Mazworx engine so I am not biased. I give them credit for what they have accomplished.

Ah, I got it figured out. You are part of that Boosted VQ Facebook Group. Enough said.

This thread is about the Rotrex supercharger kit and not built motors and your perceptions on things. Thanks.

Yes it is but when you started slandering SOHO, all beats are off.

Stupid question and I'm kinda afraid to ask it right now, but would the Rotrex kit make sense over your original kit if I'm just tagerting 450 to 500 whp? Is it still a more efficient supercharger at lower boost levels compared to the old Vortech kits?

TOPGUN SPEEDWORKS ROTREX SC KIT Vs. Vortech A2A kits
Rotrex: Record breaking 708+whp/556+wtq and 22+ psi out of the box with a full filter
A2A: V3 requires overspinning and a turboguard for only 15psi.
Rotrex:Full filter that can be cleaned in 5 minutes.
A2A: Dirt and sand ingesting turboguard..or motorcycle filter that restricts psi to 12 and requires the removal of the entire supercharger to clean.
Rotrex: Cold Air Intake
A2A: Hot Air Intake (sits in engine bay)
Rotrex: Stock plenum
A2A: Stillen plenum requiring MAF and TB extension harnesses which are extremely problematic and known heatsoak issues
Rotrex: Purrs like a kitten and whines like a F1 car
A2A: Louder and chatter due to gear backlash
Rotrex: Ability to dial in exactly what psi you want to run with in cabin boost select options
A2A: Choice between 8psi or 9psi pulley. Manually removing them to swap.
Rotrex: 50,000 mile maintenance oil changes
A2A: 7,500 mile maintenance oil changes
Rotrex: Most affordable supercharger kit on the market that can break 500whp.
A2A: More expensive.