quad turbo - crazy idea?

[yellowgto]

Originally Posted by a2j

I'm not asking for an easy 450awhp, cuz with 15G it wont be hard. BUT! how many 15G cars out there? and how many quad 9b? so all I'm asking is it doable and if will be downgrade/no difference in performance.

my idea behind it is to do something different.

I could have just start doing it without asking but that like 50/50 % failure.

will all of the four turbos blow 25psi or so? or I should just keep dreaming?

Just keep dreaming. It's completely impractical to begin with and honestly I doubt it would be worth the trouble.

[aaronatstate]

So you are going to have 1.5 cylinders powering each turbo. How exactly do you plan to even set it up? Run half a pipe from the center cylinder to each turbo on a bank? Not a very good idea.

[a2j]

both turbos get 3 cylinder, not 1.5 each.

[aaronatstate]

Originally Posted by a2j

both turbos get 3 cylinder, not 1.5 each.

Explain that to me. Explain to me how you are going to give 4 turbos, 3 cylinders each with a 6 cylinder.

6/4 = 1.5 No way to get around it.

[bert0mac]

did you want to run each turbo independently or flow the compressed air from one turbo to spool up the other. maybe a 9b used to spool a larger turbo would be neat.

i wouldnt say dont do it, because its your call. if you did it, and it worked, all the nay-sayers would be impressed.

its up to you. but it will be expensive and difficult given the amount of room available in the engine bay.

good luck either way

[a2j]

I don't want to separate exhaust for each turbo. 3 cylinders will give exhaust and than I'll split the exhaust to both turbos. I think its better than having 1.5 cylinder per turbo. and having 1 cylinder work for both.

this is just an idea. I don't even know if its gonna work.

[O_ROD]

Originally Posted by aaronatstate

Explain that to me. Explain to me how you are going to give 4 turbos, 3 cylinders each with a 6 cylinder.

I think he means 2 turbos off 1 manifold, I hope!

If your worrying about spool time and want a quad set-up your best bet I think would be a sequential set-up. Still impossible to fit in the bay, but much more useful than the original idea.

Quad parallel turbo's is awfully impractical unless you have a W16! Which is essentially very efficient due to the fact that each turbo gets a 4 cylinder bank.

[aaronatstate]

Originally Posted by a2j

I don't want to separate exhaust for each turbo. 3 cylinders will give exhaust and than I'll split the exhaust to both turbos. I think its better than having 1.5 cylinder per turbo. and having 1 cylinder work for both.

this is just an idea. I don't even know if its gonna work.

Doing that will mean you are using 50% of the exhaust gas from each bank of cylinders to power 1 turbo. 50% of 3 is 1.5. No matter which way you run the pipes, there will never be a way to run more then 1.5 cylinders worth of exhaust gas to the turbo.

[LeigerReign]

Just to throw in an engineers perspective........this is a sweet idea, and id be very impressed if you made it work. Now for the downside. If you run 2 of the same turbos on each side of the engine....you will only have minimal power gains. The reason being that you cant just add the amount each single turbo outputs together and get one total PSI sum. Plus, each turbo will take longer to spool as previously mentioned. Even though this will be minimal.....

The main issue you have will be the PSI gains. They WILL NOT pull 25psi to the redline......and THEN you have to worry about cooling. As previously mentioned....4 9Bs are very inefficient......which means lots of heat for minimal gains. The turbos will get very very hot and to make a cooling system that would work would be hell. Overall, bad idea......but good concept. Go for a sequential setup (if you have 20k to blow)

[lawdogg]

Originally Posted by LeigerReign

Just to throw in an engineers perspective........this is a sweet idea, and id be very impressed if you made it work. Now for the downside. If you run 2 of the same turbos on each side of the engine....you will only have minimal power gains. The reason being that you cant just add the amount each single turbo outputs together and get one total PSI sum. Plus, each turbo will take longer to spool as previously mentioned. Even though this will be minimal.....

The main issue you have will be the PSI gains. They WILL NOT pull 25psi to the redline......and THEN you have to worry about cooling. As previously mentioned....4 9Bs are very inefficient......which means lots of heat for minimal gains. The turbos will get very very hot and to make a cooling system that would work would be hell. Overall, bad idea......but good concept. Go for a sequential setup (if you have 20k to blow)

Yay engineers.

How come nobody else read my post?