How'd that dyno-day turn out?

It's this coming Monday.

Shucks, I kept checking for the results thinking it was this past Monday lol

It was supposed to be but by the time we received the new injectors and had them in we only had a day to road tune prior to the dyno and it was raining that day. So we had to push it back.

Any updates Aaron?

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.

Where was I doing that?? I said "i heard" not " I know". Theres a diffence.

I can’t wait to see the kit on a fully built motor

when you said "they do not" that would be when you said it. you are letting a personal beef with SOHO cost your customer an engine that everyone knows wont last. I hope he has deep enough pockets to do it twice.

:twocents:

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.

Fixed.....


And it's not a customer. He is a good friend who is in this with me. I am paying for half the cost so we can retry the resend. If I feel we need a different route I'll go mazworks.

That's a lot of money to waste knowing it won't hold. Should go Mazworx from the start and not waste the time or money. But hey, it's only half your dime to toss in the trash.

Sent from my SM-G965U using Tapatalk

Hey Everyone! I'm the owner of the Z that the Rotrex kit was developed on. Just to clear things up, during the Dyno run, when we had coolant coming out of the overflow hose, it was Aaron that told me to pull the car off the dyno. I wanted to keep going and do another pull but he convinced me that it would be best to pull the car off and build the motor before we get a major head lift and cause damage to the motor. Eugene also did warn me and explained all the issues we could potentially see by putting this much power to the motor along with pushing 22psi on a stock block. I was the one that instructed him to keep dialing things in as he did give me the warning. As his customer, he is going to tell me the potential issues but he will still continue to provide service if i request it knowing the risk of blowing the motor. These guys actually probably saved me from blowing up my motor because i got a little power hungry! i'm glad these two did their job by telling me to pull the car off the Dyno.

I'm going to go out on a limb here and tell you that if you were pushing coolant, you already lifted the heads. I'll wager that if you tested the coolant, you'd find evidence of combustion in the coolant. Inspect the block thoroughly, you'll find flame cutting on the cylinder walls. Good luck.

I'm just gonna leave this here for you guys to peruse....

http://www.the370z.com/forced-induct...ercharger.html

Good possibility it will look like this. If so, that motor will go in the garbage.

url=https://flic.kr/p/2k1RpXG]https://live.staticflickr.com/65535/...01e9967f_k.jpg[/url]IMG_20201030_144003 by , on Flickr[/IMG]

^^^^^That was an 18k mistake, just for the new engine built off my original long block. No R&R, cleaning oil lines, or re-Tune money. That is also not including the 12k I already had in that engine.

When are these kits expected to ship?

Kits will be shipping out in the next 2 weeks.

So before these go on sale will there be any results that don't end in a failed motor? (That sounded way snottier than intended). But I'd like to see some 93 results on a stock motor.

I'm really interested in this kit, but lack of longevity on any cars is making me a touch nervous

I'm kinda nervous as well. But I would be nervous (in the beginning at least) with ANY FI setup. :icon17: It's a lot of money and if something goes wrong, even more money. Big money.

However, I've been wanting a solid supercharger setup for many, many months now, and for me, this is the one. Even if it means I'm amongst the very, very first to try it.

My engine failed on me last year (rod knock) so I had it rebuilt completely (using upgraded parts here and there). Lots of money there already. Fingers crossed I don't run into more trouble down the road. Aiming for a somewhat conservative tune, I suppose you could say. Around 525 whp (600ish at the crank). Plan on keeping the car for many, many years to come (third car, not a daily driver, summer only).

Yeah, I wish that the focus was on a general, turn-key install.

"Here is what the average Z-owner can expect if going for a simple purchase and install."

We have results. 708whp/556wtq and then ran out of fuel. All of this is in the thread.
We then went back with larger injectors to see the full potential and noticed the coolant spraying out of the overflow, then pulled her off.

We did not have a failed motor, we seen signs of head lift due to pushing the limit and trying to find the top end potential of the kit. That was our goal. Which turns out is enough to lift heads. If you dont want to lift heads then do not set the boost so high through ecutek and make boost/power levels that will not result in head lift.

The kit can be set to whatever power level you want so it has ZERO bearing on the kit blowing the motor. What does have a bearing is the PSI you feel comfortable making.

This is just like any turbo kit. Most kits have the potential to create dangerously high power that can take a motor out if you try. This just so happens to be the ONLY supercharger kit that can recreate that since it makes incredible power. Just dont full send it. We only did to see the upper potential.

And this is the other approach we decided to not try. At 525whp then you do not require a built block since there are years of data to support that. The car owner now wants 800whp, which will obviously require a built block.

Plus there are a few dozen kits that will be on the road soon.

Not just a few, but a few dozen, you say?

:woot:

I look forward to the reviews. Keep it up.

Yeah, I didn't have my engine rebuilt with upgraded parts in the name of my initial 525whp goal, but a few years down the road, I might see myself with a desire to move towards 700whp - depending on how it behaves on the road with 525. Plus, I've never owned a car with more than 350whp. I'll prob get myself in trouble jumping instantly to twice that power. :driving:

My car will only be for normal road use and will never see the strip or track, so if it turns out it struggles with grip at 525 on the road, I'll probably just leave it at that power level. I don't want to be spinning the wheels all day long in 3rd gear and up.