Competition 2200hp Quad-turbo big block gasser

[HoleshotHolset]

This article describes the most bada$$ engine buildup I have ever seen/heard/etc. I apologize in advance if anyone has already seen this... but I'm sure someone will get something out of it.



Here's the link.



There's LOTS of good info within this article.



I really liked this paragraph:



"Probably the wildest O-ring in the engine is the silver-plated, nitrogen-filled, aluminum tube O-ring used to seal the combustion chambers. These O-rings are similar to technology used in Meaney's BB/A turbo drag race engine and come from England. Moran has them custom-built for his application and feels they are the future. "We run peak combustion pressures that are right at the limit of a solid copper gasket," Mike says. The nitrogen in the O-rings expands as the engine gets hot and does a great job sealing the head to the block no matter what the pressure. About the only negative we've have seen is when they're cold, they bleed off a little combustion pressure. But we don't race when the engine is cold, so I consider them a great solution. " "



Perhaps these could (or already have... ) worked their way into a diesel application.



Can you say... . BADA$$??!!



#ad




Matt

 

[SRadke]

:--) After watching the tractor pull at the National Farm Machinery show last week I can really appreciate what that thing is gunna do. Can you imagine the turbo whistle? Oo. Sweet.



-Scott

 

[KLockliear]

Gonna do? Didn't do. Moran ran it for a few races back in 2001 I think. Didn't go as good as Casper had previously, so he's back to N2O.

 

[Jim Fulmer]

Matt, Mike built that motor three years ago! Good HP guy!



That is a real short stroke very high RPM Big Block!



Jim

 

[Jim Fulmer]

Matt, Mike built that motor three years ago! Good HP guy!



Jim

 

[Floor It]

Actually the NMCA banned his combonation and is now running a 540 cid twin turbo set up and has ran 6. 39 in the 1/4.



John

 

[HoleshotHolset]

I was informed by a good friend of mine (another TDR member... ), that this setup is "Sooooo last year!". My bad... .



I still like all the technology behind it. Especially the nitrogen filled fire rings.



Matt

 

[Jim Fulmer]

Mike Moran has been ahead of most people since I started keeping up with him in 95'... ... he's one smart cookie!



Jim

 

[HoleshotHolset]

Someone should make friends with him and see what he has to say about our little 6BT's...



Matt

 

[TractorNut]

I know this is old news. . but did anyone notice that the 4 turbos are in parrallel??? (Well actually 2 feeding the each side of the engine. . ) Not staged. . or am I missing something...

Bryan

 

[RustyJC]

Originally posted by TractorNut

I know this is old news. . but did anyone notice that the 4 turbos are in parrallel??? (Well actually 2 feeding the each side of the engine. . ) Not staged. . or am I missing something...

Bryan

Quicker spoolup for drag racing. The Volvo S80T6 uses 2 small Mitsubishi turbos in parallel - the Porsche Turbo uses 2 small KKK (I believe) turbos in parallel. They get about the same boost as one large turbo, but much less turbo lag with the two smaller turbos due to the lower rotational inertia of the smaller rotor assemblies.



Actually, I've wondered how 2 each HY35W-9's (or even something smaller) in parallel would work for a towing application for a moderately bombed engine. Quick response, minimal smoke yet enough compressor and turbine capacity for reasonable EGTs under heavy load.



Just thinking out loud... .



Rusty

 

[TractorNut]

Just thinking loud here too... I would think that driving the turbo in series. . but have the intakes in parrallel. . and I would think that a little bigger turbo would be better. . but depends on what U are doing...

Bryan

 

[RustyJC]

If the compressor outputs are in parallel, the drive pressures really have to be in parallel as well - that way, the 2 small turbos always see the same drive pressure and will theoretically generate the same boost. If the turbines were in series, at some point (actually, many points) in the engine's operating range, one turbine would see less drive energy than the other - and would, therefore, not be able to make as much boost as the other could. What would happen if the compressor discharges were tied to the same plenum in that case - with one turbo capable of, let's say, 30 PSIG boost and the other only 20 PSIG?



We use parallel turbos on some of the large industrial engines we build. These vee-type engines use a constant pressure exhaust manifold that runs down the center of the vee, so both turbos see the same drive pressure. Each turbo's compressor, however, feeds its own cylinder bank, so it's critical that each bank see the same air manifold pressure.



Now, that's not to say you couldn't have 2 turbos as 1st stage feeding 2 more turbos as 2nd stage - a series parallel configuration.....



Rusty

 

[TractorNut]

Yup. . I can see your point. . on the parrallel. .

Was at Bowling Green. . looked a Dodge Semi pulling truck. . he had Twin-Twins... ... it was a killer setup...

Thanks for the info. .

Bryan

 

[HoleshotHolset]

"Actually, I've wondered how 2 each HY35W-9's (or even something smaller) in parallel would work... "



Stop wondering.



I have personally seen this very setup on a ISB Dodge. It wouldn't spool unless you whacked with NOS.



Matt

 

[RustyJC]

Yeah, that's what I was afraid of. The HY35W-9's are too big. For this parallel turbo application, you'd probably need turbos originally sized for around a 2. 5L to 3. 5L or 4. 0L gasser, depending on the gasser's RPM range and airflow characteristics.



Rusty