 Ben's 914 TURBO Official World Premier, 'cuz it didn't blowd up. |
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| airsix |
 Sep 13 2004, 02:27 PM
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#21
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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  |
QUOTE(Sammy @ Sep 13 2004, 12:05 PM) I have a new hero! (IMG:style_emoticons/default/pray.gif) Anyone who has pulled it off knows it aint as easy as you make it sound. Tonight when I get home I'm going to offer a toast to the north with a frosty beverage. (IMG:style_emoticons/default/wavey.gif) Thanks Sammy. Anybody can follow. You were the one who blazed the trail. And yeah, it's hasn't been easy, and it's not over yet - I call this a major milestone, but not the end of the project. Still got some issues to shake out, but it'll get there (in one piece I hope). You are still THE MAN. Cheers. -Ben M. |
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| Eddie914 |
Sep 13 2004, 02:46 PM
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#22
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Unregistered |
In what part of Eastern Washington State do you live?
My mother has lived in Spokane for nearly 50yrs. I get over there regulary. Regards, Eddie |
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| TimT |
Sep 13 2004, 03:11 PM
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#23
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
Kewl!!
nice job Ben....You may want to run it without the muffler. We run 930's all the time on the track and street without mufflers and havent had any problems with noise.. No muffler is lighter, and will allow faster spool up of the turbo Try it you may like it !! (IMG:style_emoticons/default/beer.gif) |
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| andys |
Sep 13 2004, 03:42 PM
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#24
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Advanced Member Group: Members Posts: 2,165 Joined: 21-May 03 From: Valencia, CA Member No.: 721 Region Association: None 
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QUOTE(TimT @ Sep 13 2004, 01:11 PM) Kewl!! nice job Ben....You may want to run it without the muffler. We run 930's all the time on the track and street without mufflers and havent had any problems with noise.. No muffler is lighter, and will allow faster spool up of the turbo Try it you may like it !! (IMG:style_emoticons/default/beer.gif) TimT, That reminded me of something we did in the early days of street turbo's without waste gate controls. We controlled the boost with the exhaust by restricting it with different sized mufflers (or as you suggested, no muffler at all). Crude, but effective. Ben, if you used thin wall muffler tubing for your fab, keep a close eye on it. It will likely crack. It's perhaps one reason your Dad suggested stainless. Again, in the early days, we used heavy wall (.125") carbon steel weld together steam pipe fittings. Actually worked out quite nice, as there are 45's, 90's, and reducers available with beveled edges for welding. Andy |
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| airsix |
Sep 13 2004, 04:15 PM
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#25
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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 |
QUOTE(Eddie914 @ Sep 13 2004, 12:46 PM) In what part of Eastern Washington State do you live? I'm in Kennewick, WA. (2 hours South of Spokane). Anybody's welcome to come visit. The problem is this place isn't really "on the way" to anywhere. (IMG:style_emoticons/default/confused24.gif) The avatar pic of the Tetons that says "home" is misleading - that's where I grew up. -Ben M. |
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| Andyrew |
Sep 13 2004, 04:25 PM
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#26
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Spooling.... Please wait Group: Members Posts: 13,377 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California
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I want to see that intake setup!!!
Asside from that.. GOOD JOB!!! My thoughts for a turbo was a built bottom end (bus stuff... on a 2.0) k26 sized turbo (heck I have one on my desk.. lol) water injection and short exhaust pipes... Then a Mass air flow (for da sound of course...) And maybe 7-10 psi... BUT That will be later.. Maybe on this sbc (IMG:style_emoticons/default/happy11.gif) Andrew |
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| airsix |
Sep 13 2004, 05:30 PM
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#27
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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 |
QUOTE(Andyrew @ Sep 13 2004, 02:25 PM) I want to see that intake setup!!! There is no way I'm letting any of you see the intake setup! It's too ugly. It's made from stuff bought at Home Depot. It would make the average PCA member faint on sight. It's just a proof-of-concept prototype. I will make a REAL intake this winter and then I'll show you pictures. -Ben M. ps - I haven't given up on the idea of making a short video if someone's got a place for me to upload to. |
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| Brando |
Sep 13 2004, 05:36 PM
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#28
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BUY MY SPARE KIDNEY!!! Group: Members Posts: 3,935 Joined: 29-August 04 From: Santa Ana, CA Member No.: 2,648 Region Association: Southern California |
Next up, twin turbo?
Run a turbo off of each side... Cyls 1,3 & 2,4 (IMG:style_emoticons/default/wink.gif) Very impressive work done there. Bravo! |
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| Gint |
Sep 13 2004, 06:15 PM
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#29
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Mike Ginter Group: Admin Posts: 16,095 Joined: 26-December 02 From: Denver CO. Member No.: 20 Region Association: Rocky Mountains  |
Nice goin Ben!
Ever going to dyno it? |
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| rick 918-S |
Sep 13 2004, 09:29 PM
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#30
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Hey nice rack! -Celette Group: Members Posts: 20,838 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region 
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That's what I'm talking about! (IMG:style_emoticons/default/smilie_pokal.gif) (IMG:style_emoticons/default/monkeydance.gif)
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| echocanyons |
Sep 13 2004, 10:15 PM
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#31
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Advanced Member Group: Benefactors Posts: 2,099 Joined: 24-December 02 From: Bay Area, CA Member No.: 7 Region Association: Central California
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| Jake Raby |
Sep 13 2004, 10:19 PM
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#32
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Engine Surgeon Group: Members Posts: 9,398 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
The one big key is that you kept it a 1.7
Every Type IV Turbo that I have been able to keep together used the 90mm bore. Good job, I'd really like to see what your head temps and EGT run for comparisons with two that I built last year. |
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| Britain Smith |
Sep 13 2004, 11:49 PM
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#33
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Nano Member Group: Members Posts: 2,354 Joined: 27-February 03 From: Hillsboro, OR Member No.: 364 |
QUOTE(Jake Raby @ Sep 13 2004, 09:19 PM) The one big key is that you kept it a 1.7 Every Type IV Turbo that I have been able to keep together used the 90mm bore. Good job, I'd really like to see what your head temps and EGT run for comparisons with two that I built last year. What about a 98mm bore with nikki's? You think that will work? |
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| nein14 |
Sep 14 2004, 07:30 AM
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#34
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Senior Member Group: Members Posts: 839 Joined: 6-February 03 From: USA Member No.: 262 |
(IMG:style_emoticons/default/biggrin.gif) As the proud new owner of Evil Ed's 2.0 914 Turbo , he built it with 94mm P & C's, 71mm crank and 1.7/1.8 heads.
Boost its set at 9lbs. for the street and come on at about 3000 rpm's. He also installed Carroll Water Injection system for running 14lbs. of boost on 100 octane race fuel when he was doing track events at Watkins Glen. The head temp rarely gets above 180- degrees. The car is an absolute blast to drive even in 5th gear it has grunt! |
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| Evill Ed |
Sep 14 2004, 11:43 AM
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#35
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Member Group: Members Posts: 238 Joined: 28-February 03 Member No.: 371 Region Association: None |
QUOTE(nein14 @ Sep 14 2004, 05:30 AM) (IMG:style_emoticons/default/biggrin.gif) As the proud new owner of Evil Ed's 2.0 914 Turbo , he built it with 94mm P & C's, 71mm crank and 1.7/1.8 heads. Boost its set at 9lbs. for the street and come on at about 3000 rpm's. He also installed Carroll Water Injection system for running 14lbs. of boost on 100 octane race fuel when he was doing track events at Watkins Glen. The head temp rarely gets above 180- degrees. The car is an absolute blast to drive even in 5th gear it has grunt! Hey John, I think it was the oil temp that rarely goes over 180f (IMG:style_emoticons/default/wink.gif) The heads never go over 325 or 350f, I forget. BTW- I think John drives it alot harder than I did, on the street anway. I don't recall routine 100 mph blast to my barber shop (IMG:style_emoticons/default/laugh.gif) Ed |
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| nein14 |
Sep 14 2004, 12:25 PM
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#36
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Senior Member Group: Members Posts: 839 Joined: 6-February 03 From: USA Member No.: 262 |
HI Ed
Your right, my mistake I was referring to oil temp. The head temp doesn't go above 325 to 350 degrees. BTW, the last run up to get a haircut was 110mph with a BMW 325 trying to catch me. (IMG:style_emoticons/default/driving.gif) |
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| Jake Raby |
Sep 14 2004, 02:29 PM
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#37
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Engine Surgeon Group: Members Posts: 9,398 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Nickies solve the sealing issues- period. Any size will work unless you get stupidly thin.
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| mightyohm |
Sep 14 2004, 02:32 PM
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#38
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Advanced Member Group: Benefactors Posts: 2,277 Joined: 16-January 03 From: Seattle, WA Member No.: 162 Region Association: Pacific Northwest |
I was just wondering, is it really ok to run a water cooled turbo without water cooling?
Are they set up for adequate cooling with oil alone? |
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| lapuwali |
Sep 14 2004, 02:49 PM
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#39
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743 |
QUOTE Are they set up for adequate cooling with oil alone? Wondered about that myself. As I understand it, the primary reason water-cooled bearings came into being was that even the oil-only turbos had cooling problems, esp. on shutdown. The oil would fry once the pressure went away after shutting off, coking to the bearing. I supposed what one could do is use a small heat exchanger (like an oil cooler) with lines to and from the bearing. If you mounted the cooler more or less level with the turbo, there would be some thermo-siphoning effect to keep the water moving even w/o a pump, and this would work even with the engine off. Would work best if you ran the hoses parallel to each other, one above the other, so one was the "cold" hose, and the other was the "hot" hose. Hot water would rise in the bearing housing to the hot hose and sink in the cooler as it lost heat, pushing the cooled water at the bottom of the cooler along the cold hose into and up into the bearing housing. Pretty cheap to do. The air hose from the fan housing currently blowing air through the bearing housing could instead blow it against the cooler. I have no idea if this would be adequate, but it sounds like it would be better than just relying on the oil alone. |
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| Evill Ed |
Sep 14 2004, 03:22 PM
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#40
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Member Group: Members Posts: 238 Joined: 28-February 03 Member No.: 371 Region Association: None |
QUOTE(jkeyzer @ Sep 14 2004, 12:32 PM) I was just wondering, is it really ok to run a water cooled turbo without water cooling? Are they set up for adequate cooling with oil alone? Yes, it is fine. The cooling jacket is to help prevent oil coking (sp?). Ed |
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