OT: 90-100lbs of turbo boost!! |
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OT: 90-100lbs of turbo boost!! |
Rand |
Jan 27 2006, 01:39 PM
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#1
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Cross Member Group: Members Posts: 7,409 Joined: 8-February 05 From: OR Member No.: 3,573 Region Association: None |
Watching tractor pulls on ESPN2... The big alcohol-burning beasts are running three turbos, multistaged, pushing up to 100lbs of boost.
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Aaron Cox |
Jan 27 2006, 01:40 PM
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#2
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
top fuel dragsters are running like 70-90 i heard (supercharged)
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alpha434 |
Jan 27 2006, 01:48 PM
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#3
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My member number is no coincidence. Group: Members Posts: 3,154 Joined: 16-December 05 From: Denver, CO Member No.: 5,280 Region Association: Rocky Mountains |
yeah. They just weld the heads on. You can do that with our little engines and run 25, easy.
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Aaron Cox |
Jan 27 2006, 01:50 PM
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#4
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
how do you weld aluminum (heads) to steel (cylinders)? (IMG:http://www.914world.com/bbs2/html/emoticons/huh.gif) |
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alpha434 |
Jan 27 2006, 01:51 PM
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#5
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My member number is no coincidence. Group: Members Posts: 3,154 Joined: 16-December 05 From: Denver, CO Member No.: 5,280 Region Association: Rocky Mountains |
get aluminum cylinders. Duh.
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Britain Smith |
Jan 27 2006, 03:55 PM
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#6
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Nano Member Group: Members Posts: 2,354 Joined: 27-February 03 From: Hillsboro, OR Member No.: 364 |
I wonder if Jake has ever tried that one?
-Britain |
Jake Raby |
Jan 27 2006, 04:04 PM
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#7
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Nope...
Just do like a Lycoming and THREAD the heads onto the cylinders like a big pipe! |
stock93 |
Jan 27 2006, 04:20 PM
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#8
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Member Group: Members Posts: 333 Joined: 12-May 03 From: Huntsville, AL Member No.: 684 Region Association: South East States |
Check out varible geometry turbos. Some of them are in the neighborhood of 70 lbs of boost with a single turbo.
John |
Aaron Cox |
Jan 27 2006, 04:23 PM
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#9
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
hard to do with finned cylinders no? |
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Mueller |
Jan 27 2006, 04:32 PM
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#10
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
it would be easier if the cylinders are 2 piece...the cylinder screws into the head and the fins slide over the cylinders......sounds expensive (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif) personally, I like the idea of the head and cylinder being one piece....harder to do a valve job, but doable and is currently offered as is for Type I light aircraft applications..... |
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Aaron Cox |
Jan 27 2006, 04:39 PM
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#11
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
scat makes type 1/4 heads where they are individual heads....
slugmika had them on his bug |
Mueller |
Jan 27 2006, 04:41 PM
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#12
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
yea, I was looking at those, Jake talked me out of it...way too much work I guess?!?!?!? |
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Aaron Cox |
Jan 27 2006, 04:44 PM
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#13
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
but you could thread them into the cylinders (IMG:http://www.914world.com/bbs2/html/emoticons/tongue.gif) whats more work about them??? |
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airsix |
Jan 27 2006, 04:59 PM
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#14
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I have bees in my epiglotis Group: Members Posts: 2,196 Joined: 7-February 03 From: Kennewick Man (E. WA State) Member No.: 266 |
When you turbo a typeIV all the boost goes past the rings.
Seal the rings and it goes out between the deck and heads. Seal the heads and it goes out the valve guides. And oil starts coming out of places that never leaked before. (IMG:http://www.914world.com/bbs2/html/emoticons/dry.gif) ...but its fun to drive. (IMG:http://www.914world.com/bbs2/html/emoticons/driving.gif) -Ben M. |
Porcharu |
Jan 27 2006, 05:55 PM
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#15
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Senior Member Group: Members Posts: 1,314 Joined: 27-January 05 From: Campbell, CA Member No.: 3,518 Region Association: Northern California |
I was watching that too, I even thought about posting a WOT thread. They are converting heavy duty diesels to alcohol and then running compound turbo systems on them, mentioned going from a little under 200 HP to 4000HP! Mike you need to look at an old OFFY they are made like that - that's why they were so succesfull as Indy car engines for so long. That's gotta be a PITA to do a valve job. |
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airsix |
Jan 27 2006, 06:45 PM
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#16
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I have bees in my epiglotis Group: Members Posts: 2,196 Joined: 7-February 03 From: Kennewick Man (E. WA State) Member No.: 266 |
Compressing the rings and slipping all the pistons in is probably tricky too. -Ben M. |
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r_towle |
Jan 27 2006, 09:12 PM
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#17
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Custom Member Group: Members Posts: 24,591 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
no need for a cooling system on a 1/4 mile drag motor... Look at pauter...he has some 1000hp motors... They are a one shot deal...but if you win, its worth it I suppose... Rich |
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