Twin Blower Tests
 

We are working hard to get the first ever twin blower engines to the dyno in time to publish results in November in Key West. Two tests are scheduled; one with wedge heads, the second with Big Chief heads. The Big Chief heads flow a lot more air so they require bigger blowers and higher pulley ratios. Both systems are fuel-injected and based on cast tunnel ram intakes. Both systems use twin 1000 CFM throttle bodies and a single 900 in3 intercooler. Our trademark discharge plenum sits on top. We'll keep you posted. :evilb:

Tom

Re: Twin Blower Tests
 

Can't wait to see the results!! Should be good.

Re: Twin Blower Tests
 

This oughta be sweet!!!

Re: Twin Blower Tests
 

My money is on the Big Chief, what cubic inch, what cams are you running?

Re: Twin Blower Tests
 

Nice!

I'd like to see a Mondo blow-off valve on that 'front Y plenum'. The amount of air those 2 will push and cog belts with no slippage, I could only imagine what 'in the air off the throttle' would be like.

Great job, keep it coming!

Re: Twin Blower Tests
 

Only problem is finding an outdrive that would last on that beast of a powerplant :eek:

More r&d for Konrad outdrives:D

Re: Twin Blower Tests
 

Wedge head engine is 598 CID. Big Chief engine will be either 557 or 653 CID. The smaller engine makes more sense for the RPM. We are NOT the engine builders, but I think we are working with the best in the business. Compression ratio, cam choice and EFI tuning will be done by the engine builders, and they probably won't want to talk about it. Biggest bypass valve made is tucked in behind the bypass box. Only Merc #6 drives or bettter need apply.

Re: Twin Blower Tests
 

What kind of power do you think you'll make?

Re: Twin Blower Tests
 

TC, I know you're not the builder but, it would be nice to see the testing done on the same size motors useing the different heads. The results may be more conclusive. I'm guessing the Chiefs with a little more than the standard RV cam should make over 2.5 hp per cubic inch. Good luck!

Re: Twin Blower Tests
 

Tom
STOP what you doing immediately!
Blower GYRO Dustin Whipple says you can't use two round blowers. You had better listen up. He is the only blower god that can make two blowers work. Good Luck!
By the way he has the best intercoolers in the business so I'de just give up.....

Re: Twin Blower Tests
 

Relax NOBODY,

Tom's no rookie in this game. R-tech has the know how and determination to re-invent forced induction.

Kurt

Re: Twin Blower Tests
 

OK, I'm happy now. Great way to tuck in the blow-off valve. How much boost do you expect and what rpm?

Re: Twin Blower Tests
 

Awesome Tom keep up the good work I'm glad to see someone with a great product and all the R&D you're putting into it way to go.

Re: Twin Blower Tests
 

Tom, you are gettin nuttier in your old age :) I suspect we are about to see some real incredible numbers soon. Good luck Mr Nutty Professor :)
PS, ain't no way, no how you gonna convince me to guinea pig that set up in front of the Black Hawk :) Even if the drive survived 5 minutes, I doubt I would !!!

Re: Twin Blower Tests
 

just out of curiocity.....will you be running the blowers at a slower speed? I know Livorsi had a dual blower setup like this a few years back...they ran each blower at half speed i think so they could get away with not useing a chiller. :)

Re: Twin Blower Tests
 

How many hours do you expect the big chief heads to last between lifter replacements. They make big power, but the offset lifter seems to be an issue.

Re: Twin Blower Tests
 

Thanks guys:

I have an idea how much power, and so does GPM, but I'm reluctant to make a prediction. The amount of positive pressure differential across the cylinder makes a big difference to volumetric efficiency and HP. Cam choice and header performance are obviously related. We will have to wait and see. A back to back test on the 598 would be nice to see the Big Chief effect, but it's not my engine.

Boost depends on the heads and cam. I can tell you that engine RPM on the 557 Big Chief engine will be 7000 and blower speed will be 63,000, which is still under Vortech's recommended maximum. This is one reason for using two small blowers; the other is overall packaging on the engine. The gearcase is there to address drive belt issues, and allow the symmetrical arrangement of mirror image blowers.

We bring the product as fas as we can with our own R&D, but at some point an engine builder has to step up to the plate and do some R&D using our system as part of their package. Without these guys, we are just a bunch of shiny parts in a box. Laz knows what I'm talking about. And ultimately we are all counting on the customer to recognize the advantages and lay their money down.

P.S. NOBODY said this would be easy! :rolleyes: :evilb:

Re: Twin Blower Tests
 

:D :D :D :D

Any results?

was 9 years ago...