It isn't always about a single top end figure...in fact a compound like that, that would be way down the list.. Often it's about a wide spread of power, instant response etc etc.

People always get fixated on one single thing.

Although with a new TVS3100...there might be some blowers to cover all aspects.

 

Perhaps that single thing is winning

I never liked the instant torque of a PD blower on a V8, cool for stoplight burnout scene points but not much else. Plus almost all the PD guys need nitrous on top of their expensive blower to be remotely competitive as they have a weak top end.

If the 3100 is anything like the 2650 then it probably wont do very much for the price, you have these units knocking on $10,000 that can't outperform an $800 chinese turbo.

 

if you are bored and wanna browse through 200 pages of turbo + blower truck build
https://www.performancetrucks.net/fo...18144/page199/

 

Steve, that’s what Norris dose. There is a good vid on YouTube with one of them talking about how it works. Problem is the clutched pulleys weigh a ton and are prone to, well slipping (funny that!). Sure you could do it without.

In fact Banks did a 8.3 Whipple feeding a turbo on one piles peak truck. Kinda makes sense and the Whipple is designed to shift big volumes of air at low pressures (see Banks video above - Whipple blower didn’t like high pressure air) and the turbo did the compounding to bring upto pressure. Sized right that could work well in a high boost situation (like on a diesel).

 

He's got a few youtube videos of his truck running in the 1/8. It is a beautiful sight

 

It has twin S475s with a blower and runs 6.3x in the 1/8th.
Guys have been more than a full second faster on a single cast S475.

While it works, that doesn't mean it works well.

 

Exactly my point, I’ve seen lots of setups “work” but not well or any better than a single power adder. CTSV scene is infamous for this, they have tons of guys running a big stroker with a big blower on nitrous running slower than SBE 5.3’s with a single turbo. And somehow facebook tuners still blow up their $20k pile and the SBE stuff runs, weird.

 

Isn't the entire purpose of compound boost to extract power at a lower rpm?

If you are willing to spin so high that one of your blowers is becoming a restriction for the other... then compound boost wasn't right for your application anyways

 

I havent seen an application yet where turbos alone cant overwhelm the tires off the line. Even rotaries in a prostock chassis can leave on enough boost to spin 33” slicks.

 

The use of a blower and turbo as already said would be to offer a much wider spread of power/torque, as well as instant throttle response everywhere. Just some fools only fixated on drag racing don't comprehend that.
There is a whole world outside drag racing.

And there are many designs of compound boost for various different goals too.

 

Not at all, those setups sucked on the street as well. Dual power adders is a pointless endeavor unless you just want to sit at car shows and have people go OMG its got 4 turbos and a supercharger!!

As you probably know VW and others tried this in production cars and ended up going back to a single turbo.

 

Largely due to cost, but in the VW's it did work fairly well...but overly complicated and expensive for what is supposed to be a smaller cheaper car. The actual engines themselves were not the most reliable though.
There's no way it would ever really make financial sense

 

He went a nearly identical 6.3x on a single turbo.
He could've done that on a blower as well and had the low end torque and throttle response he was aiming for.
None of this was necessary.

As someone who has done compound blower/turbo setups AND has 4 turbos on his car, I can absolutely say whether or not this is necessary LOL.

 

They work well in G8's huh? Hmmm... You shouldnt have told me that! LOL! Got my brain working overtime now... LOL!

 

Get your Q50 tuned first!!

 

Dual V-band? V-band on turbine inlet? VSR?

 

LOL! I need to change my sig. The Q50 is no longer for this world. Totalled... Be careful with hitting debris on the road. The oil pan is COMPOSITE. Hit a BIG piece of iron pipe. Engine locked up (5 seconds after impact). I will get another one soon. Buying a house right now...

 

Dang! Sorry to hear that. Ive already replaced my pan one unfortunately. Amazing to me they make it out of plastic.

 

I'm really disappointed in your responses. I've been following Atomic's build for years now, he is consistently trying to be different.

As someone who went 4 turbo, when doing a single would have netted the same or better results, I expected you to appreciate him trying to work outside of the box.

 

The posts were about efficiency and gains....not trying to look cool and think outside the box. If we were going for the cool factor, everyone would have a blower 2 turbos and a bottle of N2O in their cars.