Technical I love the twin engine stuff .....gotta question !

Sounds like how I got married the second time...

 

The 4 engine car was always push started and without provision for starters. There was also only 1 clutch peddle to operate both clutches . Inside the drivers compartment there was a lockdown lever to hold the peddle down while pushing the car, without it, Ivos skinny leg would start shaking. after you got use to it, with being pushed started, you could light all 4 at a single time, and being on gas, made that much easier. The 4 mag switches are on the right and they were all tied together so that they all shut off at once

 

Ivo must have been a compact dude.

I'm not overlarge, and I couldn't even get into the seat.

 

If a gilmer belt will spin the blower on a modern Top Fuel car it should be more than capable of coupling your two engines.

I'd be kind of worried about the crank snouts. Maybe think about an outboard bearing support similar to the ones they run on countershaft sprockets on dragbikes.

 

Tells the story about having to run around in the shower to get wet

 

The fourth mag is on the right rear engine hidden by the injector stacks, the reason you can see the middle magnetos is that they are on a Hilborn fuel pump drive which raises them up another 4" and the left front engine --just because

 

Still around but with SBC engines. The story on that car was that those 2 engines became available really cheap when USAC changed the displacement rules for Indy cars. After Busby installed the engines in a dragster and ran it once, USAC changed the rules back, and Busby sold them back to the original owner for a HUGE profit. Many would like to see the car restored, but the cost of those type of engines is way to cost prohibiting these days

 

The belts used for the top fuel cars are special made to handle the power--- but are not always available in different sizes. You can go back to the old style and material 1/2pitch belts to find the sizes you need but are not nearly as strong and will have a short life span

 

Hey, DRE;
Thanks. Yup, two 255's = 510 cubes of injected 10-12k+ rpm on nitro. W/the bag-o-snakes, too. Sigh...
One of the very nicest looking & well-proportioned dual engine rails. Those mills are seriously stupid $$$. Had a chance to buy 2 in the late 70's/early 80's, 1 complete w/turbo, & 1 w/o turbo, for ~ 1500 each, in near-new condition. Good price & had the spare bucks. Didn't have a place to store them, & couldn't use them. Boy, didn't take long to commiserate over that one... ;( .
Marcus...

 

These are aluminum, Howard Cams cylinder heads (4) on the car., along with the mostly obvious cam and connecting rods. I don't know how many they sold, but here's four of-em.

Picture stolen from the first page


Mike

 

I think you are going to find the limits for side loading the crank snouts on those SBC's....

 

And I'd imagine that he also tells about how it feels to be the last person to know when it starts raining . . .

 

Thanks man.
I hate to deal out bad information and if there is someone who knows it is better to ask.

 

and the loading from a blower isnt??? the only problem with a SBC snout is that its way too short, and anything driven off of it hangs out too far putting strain on the drive hub with will break. I had a crank made with a longer BBC snout to handle that issue

 

Things to consider by using a belt drive, Unless you are extremely lucky with the pully teeth, you are going to need tensioners top and bottom, one to take up the slack to keep the crank timing equal and the other to take up the belt slack. Since the pulley hub sticks out from the crank snout, and the extra keyways, it weakens the hub and it will split, roll the keys out of the snout, Generally ruin your day and wallet. ATI makes a SBC blower hub, but the OD is the same as a BBC to give you more "MEAT" around the snout and much harder to crack with 2 keyways and there are some aftermarket front covers that will accept the bigger seal. Or if you have a good machinist, they can shrink fit a Chromemoly sleeve over the stock hub and then machine it down to BBC OD.

All and all, I never heard of anyone doing a front belt drive, I know its probably been tried before, but must be a reason it never caught on and why meshing the flywheels did. The last side by side twin was build a few years ago by Rocky Phillips

 

thanks for the cool video!

This isn’t my own project, it’s a project I’m helping friends with. And by helping I mean mostly drinking their beer. I don’t think the blower belt will work, but we need to confirm that before moving on to other options.
If we only did things that are proven to work we would be building a turbo LS engine lol.

The inline two engine car initially had a double cardan joint between the engines. That failed spectacularly and broke a crank before we gave up and built a chain coupling.

Our current concern is wether we need to modify the oil pans for the engines being on an angle. One theory is the bottom of the pan must be horizontal. The other theory is that we just need to modify the pickup to suck from the lowest point in the pan and there’s no reason that can’t be the corner although windage might be a problem with a stock pan on an angle.

 

Ivos 4 engine "SHOWBOAT". The canister was for extra volume

 

i'm building a twin engine altered powered by buick v6's with inglese weber setup. the webers are worth more than the altered. why buicks, thats all i've ever done.
hooking the 2 engines in line together is a big pain.

 

Inline, or side-by-side?

 

[QUOTE
hooking the 2 engines in line together is a big pain.[/QUOTE]
That should be the easy part

 

Blown drag boats are crank/snout started

https://fb.watch/iSnkjgICPO/

 

buicks in a line. it is a pain when you get almost there and you forgot something or make a better change. that's one of the problems being a retired r&d machinist. never done making changes.

 

Only when something has never been done before

 

nailheads are easy to twin. dizzy is in the back and the t/c is way shorter than the other buicks.
but n/h's are a lot more expensive than the v6's. maybe in my next life.....

 

Twin Engine.. recreation here of a 1948 twin flathead from Australia.. the recreation was at the Rob Roy Hill climb ebent just out of Melbourne last weekend.. Video starts off with some great Flathead speedsters but then video & images of with some decriptive text of the Twin Flatty.. love it that the builder has put all the character of the original in to this recreation..

 

My friend’s current project