You guys sure have worked on some mega engines/gensets!
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You guys sure have worked on some mega engines/gensets!
We have a couple " generators " that produce about 1200mw each.
Man that would be some hp!!
I don't work on them, just operate them.Quote:
Originally Posted by 40FordDeluxe
Nick has to be close to that first drive with the 550 hp 427, weather permitting.
In steam turbine technology that's a term with a double turbine. With a gas turbine as the prime mover, it's generally called by GE a combined cycle or STAG (STeam And Gas) plant. It tends to get a bit complicated as to layout - they are often designed with the gas and steamers in one line up, powering a single genset, others use one to as many as four GTs, each powering a genset, then a good size ST running a 5th gen set. We did that at a project of mine Mahmoudia, Egypt with smaller frame size GTs. I sure wish I still had my photos, but they got left in the project files when I retiredQuote:
Originally Posted by deckofficer
Nick, it appears that you're tailpipes are welded to the rear bar, which I assume is bolted to the frame.
If so, aren't you worried about that vibration (noise)?
Usually a rubber isolator is set between the pipe and frame, allows the system to move to prevent stress / flex - fatigue failures and help keep the vibration noise out of the cab.
Just curious how it acts once you get to drive it.
Yeah, I wondered about the welded pipes when I saw that picture, too, but I let it pass. Besides the vibrations exhaust systems grow with the every startup simply due to the thermal expansion through the system, so they are hung rather than being direct coupled. If it's welded all the way you're going to have some pretty good forces on that nerf bar weld.Quote:
Originally Posted by 34_40
Thanks for the comments guys. I'm seriously considering your suggestions and looking at what will happen as things flex and get hot and cold. I'm also wondering if I wouldn't rather have an exhaust I can quickly drop and run straight open headers ...if for no other reason that to scare away big bears that might come on my property. Whatever I do, you'll be the second ones to know.
I use just a harden rubber washer on mine, might be an easy out for you Nick. It acoustically decouples the exhaust from the mounting point and allows a fraction of the movement of a hanging rubber donut isolator.
http://i1236.photobucket.com/albums/...081014x760.jpg
http://i1236.photobucket.com/albums/...141014x760.jpg
If you look at the coefficient of expansion for steel and assume a nominal ten foot length for the pipes the movement from a 50F ambient to nominal 180F exhaust temp (higher with CAT's) yields over 1/4" of growth. It's proportional to the change in temperature, so going from a frigid winter day to operating temps is going to be more. Bob, you's will be flexing that vertical mount, and the donut provides very little for isolation with the bolt coupling both rigid parts.
Are you sure a 1/2"? The table I use, the expansion is given 10 to the negative 6th in inches. Coefficients of Linear Thermal ExpansionQuote:
Originally Posted by rspears
Aw, you edited it to 1/4". Mine is a 5' run, so maybe 1/8" for my set up.
So Nick, when is the first drive planned?
Yeah, I had looked earlier and missed the first digit. 1/4" is not nearly as much of an issue as 1/2" or more. Vibration & noise are more of a concern, and given the other noises on one of these that's not such an issue either...Quote:
Originally Posted by deckofficer
I agree with you to rubber insulate the mounting. Before I did I had some audible resonant droning at certain rpm.Quote:
Originally Posted by rspears
While we are on a thread drift and waiting for Nick to fire up Super Mouse......
Support a BBQ Rib Joint that supports hot rods
It is that time again where the local TV station has the "best of" polls. Take my word along with Gilbert and Mary Ann, that Hog Wild has the best ribs in the area. Also if in the area (Placerville, half way between Sacramento and Lake Tahoe) stop by the 1st or 3rd Monday during cruising season for hot rod nights.
http://i1236.photobucket.com/albums/...681014x760.jpg
http://i1236.photobucket.com/albums/...281014x760.jpg
Please vote for Hog Wild here> Hog Wild Barbeque in the Sacramento area on the A-List
Priming the oil tonight, checking the pre-crank checklist a couple times...but also busy with my boys since their school is playing in the state championship high school basketball playoffs tonight GO LOWER MERION ACES! I feel confident that we'll fire it up tomorrow, because unlike a well know deity many of us sort of know, I do not rest on Sunday.
Earlier this afternoon I was at the Northeast Rod & Custom Show and took about 130 iphone pics and some don't look too bad. I wonder is that fits into the "events" section here? Whatchu think?
I won't say it was the highlight of the show, but the Budweiser people had a free beer tasting booth and I finally got to taste their Black Crown. Pretty good if I do say so myself. I'm not a fan of regular Bud due to the rice taste which I can't get out of my beer tasting frontal lobes and it reminds me of bad times I had with sake (made from fermented rice). But I'm going to give Black Crown some more tries.
Bob, I just voted for Hog Wild. It said they're currently in 8th place but in my heart and stomach, I know they're #1 :)
Btw, besides the locomotive valve I mentioned before and other associated industrial controls, we also make bbq controls (for wood and charcoal only, no gas or steam powered bbq for us) under The BBQ Guru name: The BBQ Guru temperature control barbequeing
Just toss a thread in the lounge and post them pics! :LOL:Quote:
Originally Posted by Hot Rod Nick
will do in a few!
In the meantime, fire in the hole!!! (click on pic and it'll play my photobucket video)
http://i59.photobucket.com/albums/g2...einthehole.jpg
Sounds like a better idle than mine. I think it was a week from my first fire in the hole to driving it. Looks like your going to do it the following day.
Dueling 427's
http://www.youtube.com/watch?v=fd-CXi2coHE
The sound of music - (and probably one of the reasons I'm about 50% deaf)
Dave, It sounds great to me, too, but I'm only roughly 35% deaf (self diagnosed) since my left ear seems OK but my right ear is way down in reception. Loud music, loud cars, blasts of various sorts, working for hours in areas marked for mandatory ear protection without any. I hope the kids learn from our errant ways but I'm suspicious my deafness is hereditary since my kids frequently don't listen to anything I say. I recall it starts out as "selective hearing" as my wife puts it.
I purposely went with what I thought would be an exhaust "on the quiet side" with the two big'ish mufflers and I'm happy with the noise level so far, pending cruising for a long duration. I will probably post another video in the near future with the exhaust dropped and running open headers in hopes that it will stimulate my right ear and improve my hearing.
Exhaust system and mufflers can tame the bark to a point, but the valve timing events controlled by the cam has a large influence on the sound. I've run three different engines on the same exhaust system, the 355 was a snarling, barking loud exhaust, the 427 much quieter and the 383 was a purring pussy cat. Here is the mild mannered 383....
http://www.youtube.com/watch?v=j9zOxjMHOC4
I always like your vids, Bob. Thanks. Besides the "autocross" aspect of it, is there a name for an event like that? Would this be a gymkhana? If so, I'm keeping my eyes open for one around here.
So with some rain turning into snow tonight, and then possibly up to 4" of snow tomorrow, I'm not hitting the roads yet. Plus, the bomber seats are just getting final fitment tomorrow so I'm nice and comfy for long drives. Then that's about it except waiting on Mother Nature. Thursday this week and for that upcoming weekend they're predicting sunny and mid 50F's :)
I figured weather got you as I watched the national news. Gymkhana is serious drifting, tires spinning and no insurance company would touch that coverage among a bunch of bucket heads. To date, there just isn't any skill or performance contests we with bucket-t get to participate in. No drags, road tracks, or even parking lot auto-cross. Most all t-bucket folks don't care, their ride is shined up for shows, not designed and wrenched on for competition. I am the odd ball in that group. When we go on cruises, I'll never be the leader, but to make things more fun for me when the cruise is on twisty roads, I'll fall back so I can bank and crank the turns. Problem is the cars behind me after a few of these fall backs are no longer keeping up.
Nick, I got my 1st video up, it is really crappy, but due to your weather I got it up before you, here > http://www.clubhotrod.com/engine-tal...d-today-8.html
Bob, I'll head over there and check it out shortly.
I was sitting in the hot rod yesterday while the bomber seats were being fitted for me and I started it up, let it warm up, and then was reving it and just absorbing the sound and impact of this setup. I don't know if my words will convey the feeling which I hope to post up in the near future with videos including better sound quality, but my impression is that it sounds angry and violent and will scare most people. Perfect! Very nice! :)Quote:
Originally Posted by Hot Rod Nick
When stone cold mine is a bit loud, lumpy, and obnoxious, but once warmed up settles down. Still doesn't like to work hard below 2000 rpm, and after the 383 that takes some getting used to.
Sounds like it's getting there Nick!
I got my finned valve covers and air cleaner installed today. I realize the carb intake is only 5-1/4" diameter but I'm inclined to look for a thicker filter that fits between the top and bottom plate of the air cleaner. Otherwise, I really like how this looks on the motor.
http://i59.photobucket.com/albums/g2...nnedcovers.jpg
Nick, I agree, it looks really nice!
Nick it looks great - but you will possibly have a problem. That little bitty air cleaner element is gonna strangle 427ci. I'm using the same size on my little in comparison 302 and you can feel it start to run out of breath over 4000 rpm. That oval element is from an '80s Pontiac Sunbird/Phenix 4 cyl engine 2.5L/151cid engine --------------------- pretty, but not too good for performance!!
I wish I could find my formula to calculate the right size.
Thanks for that info, Dave. I was on a fence about thinking if it was too small or not. First I figured that the lateral open area was quite a bit more than twice the carb throat diameter (filter is 11.5" X 7.87" X 1.87", carb is 5-1/8" diam. neck) but a few people have now told me it's too small so now I'm doubting my simple area comparison. I found a K&N filter that I think I can make fit and it's 4" thick vs the 1.87" of this one. It's the K&N which is 11.5" X 8.125" X 4"; I may give this a try but if it doesn't work it's a $55 experiment. Or I could look into stacking two of the ones already in there so double the height and lateral area. Other opinions are appreciated.
Btw, you can just about see the huge one I had on my old ZZ4 which I still have so I can use that until I figure out where to go with this one.
http://i59.photobucket.com/albums/g2...r/IMG_0755.jpg
Btw #2: I still have these Sanderson Zoomies shown above (with all the baffles not installed yet) that fit the ZZ4 but since they don't fit the new motor I'm thinking of selling these. They're in perfect, barely used condition. Any opinions what they're worth?
Maybe? It breaths pretty good.
http://i1236.photobucket.com/albums/...psff222326.jpg
Nick, perhaps I missed it, but did you get any pics of the oil pan notching?
Nick - there are several of us here that have been 'chartered' to help others spend their hard earned money:whacked::D:DQuote:
Originally Posted by Hot Rod Nick
If that K&N works, let us know. I've seen that element but really hate to spend my own $$ on a whim :eek: I would have to turn my air cleaner 90* due to engine setback and the fact my cleaner is part way under the firewall recess, I would change it out though, dam' the looks.
That convoluted hose is 'gone'
Bob, thanks for that suggestion and it does look like it has huge airflow and very little restriction but I'm going to continue exploring a solution using a "look" I'm digging right now.
Dave, I dumped my "convoluted hose" too; you can see it on the old ZZ4 pic above but now I have "normal" hoses. I know some people like the "dressed" look with that piece but I just don't like it...which is odd since my wife often says I'm convoluted!?!!
I found this picture of what is described as a '37 Ford with a Chevy big block and it has what looks like my air cleaner housing but with this thicker K&N I mentioned above. I think I can make that fit so I'm going for it.
http://i59.photobucket.com/albums/g2...ock-engine.jpg
Robert,Quote:
Originally Posted by MP&C
Just to make sure we notched both front corners of the oil pan to clear the headers. Basically we cut each corner top to bottom and then welded a plate into the corner to cover up the missing piece. We've run and heated up the motor to normal op temps and rev'd the piss out of it and no leaks. My fabricator buddy, Rick, is a super good welder so I had the utmost confidence cutting a new oil pan and fixing the clearance problem. While I was there yesterday he showed me a titanium suspension assembly he built which he's selling to the BMW M3 and other hi perf model owners since their rear suspensions are apparently easy to break with hard launches; as you probably know, titanium is tricky to weld and requires cover gas etc. but his bars are very solid.
Here's the only pic I have of the front corners cut and clearing the headers:
http://i59.photobucket.com/albums/g2...od32013012.jpg
Thanks, Looks good. Was just wondering how it got sorted out. I had to modify the oil pan for the 55 I'm working on, moving the engine forward 3/4" for firewall clearance creates problems elsewhere ;) I was just curious to see how others resolve similar issues.