Landracing Forum
East Coast Timing Association => ECTA General Chat => Topic started by: Cajun Kid on April 19, 2011, 07:51:14 PM
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I just got some bad news on the "E" motor...
Before the Bad news update, the good news it could have been MUCH WORSE...
The Block is damaged beyond repair,,, 3 cracked cylinders... 1 exhaust valve broke clean off at the head, the lucky part is the broke piece blew right back up in the head, I will have to replace that one Piston as well.
I need a GM 305 Block ASAP... anyone have one or know of any new old stock laying at a GM dealer ?
So I need a good used 305 Block that can be cleaned up at max 30 over... or a new 305 block.
1 piston, 1 ex valve, rings, rod and main bearings, cam bearings, (may go with full set of Ti valves).
Good news is Crank and Rods are all OK... One head great, one head fixable damage from valve breakage,
Bad news is unless we locate a Block ASAP with all the custom machining needed we will not make May event with "E" motor,,, I may drop in a spare "C" motor to stay in the points chase,,, Oh man,,
"That's Racing" and 8500 rpms sure don't help keep things together. My motor man says he is glad I shut it down when I did or we would have had catastrophic failure.
Charles
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Another way to say it, Charles, is "Ain't this racin' fun?" :cry:
Bummer, bummer, on the hurt motor. No matter how much fun - it still hurts the wallet.
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I remember telling Bill Burke ..... "dad Bonneville" himself- one of the original 49ers..... why do we keep doing this?..... cuz we never learn.... it would be cheaper ust dig a deep hole in your back yard and toss all the money in it.....
I do have a 305 v8 though.... it came out of a 78 Monza.... and I still have the Monza too..... shipping would costya though....
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Charles, I posted this for you- hope it helps!
http://www.jalopyjournal.com/forum/showthread.php?t=582189
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Charles, I posted this for you- hope it helps!
http://www.jalopyjournal.com/forum/showthread.php?t=582189
Thanks very much,,, I hope I can find one by the weekend,,,
Charles
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Charles,
Check the link. A Guy has one for you in S.C..
Tom G.
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8500 rpms sure don't help keep things together. My motor man says he is glad I shut it down when I did or we would have had catastrophic failure.
Charles
Crikey chuck, 8 and a half grand E motor?...that should be in something with a bit of shape :roll: :roll:....
Hope you get it back together in time.......................
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gotta love the LSR fam. blow em up and the help is just around the corner. :cheers: :cheers:
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Just spoke to Ed in SC he said I could have the 305 ,, all I have to do is go get it,,, 12 hour round trip drive,,, no time before the weekend,,, I may take himup on it,, but still looking for one a lot closer..
Thanks for all the help...keep it coming...
Charles
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Come on Charles you are on a mission YOU CAN DO IT .
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Charles, I've shipped a lot of engine with Enginesdirect.net (kschultz@enginesdirect.net)
They can probably have it to you before the weekend, as cheap as you get drive and get it.
Just a thought.
Good luck!
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Wow Charles. Blowing a good trusty motor is like losing a friend. Good luck and I hope you get it done.
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Charles,
Sorry to hear about the damage. I have faith in you C or E we will see you in May.
Bill
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Good luck to you Charles. We blew our 636 up 3 times last year, once on the dyno. A majority of the parts are one offs for the bike, so I feel your pain. You still have time though. I expect you will be there in May.
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"Kids, I have some good news and even better news."
"First the good news! I got a new engine!"
"Now the better news! Remember when you said you weren't looking forward to 2 years of calculus in College? That is no longer a worry!"
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Aw man that sucks to hear, sorry about that Charles.
At least you have it apart and know what you need to fix it up, I'm sure it will come back stronger than ever. Best off luck gettin the block in time.
P.s. my junk is still in the trailer, haven't pull it apart yet to see all the goodness left behind.
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Well Charles glad to hear your okay.
Remember, it can always be worse...... :-o
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Mike, yes at least now we know what is broke, what is Ok, what is fixable and what is trash.
I am doing the math and research now,,,, with the current E and also thinking about a new Dart block and making a stout wet sump D motor.
Who knows what I will end up with... I like the E as I can run for E, D and C records and I kinda like my little E motor because of that.
Charles
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Charles, there are two "E's" in Venable so you have to do another E-motor! :-D
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The decision has been made, we will do another E motor. I spent hours on the phone with Dart, they are casting me a one off 4 bolt main 305 SHP Block..3 week turn around...so the E will not make Maxton in May...a stock 305 block can not take 14 to 1 compession and 8500 rpm for very long,,,I am glad it lasted 3 years and we avoided terminal failure.. The crank, rods, heads all survived ...(less one valve and one piston)
We are going to come back with a leaner, meaner, stouter E motor also with provisions for power adders should I desire.
Thanks for all the help on locating a used 305 block, but it would have failed under the cylinder pressure too.
I will post pics of the head and piston later tonight.
Charles
9
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Charles I kmow you don't like wires and things. But data loggers and power adders go together.at the very least get dual exhaust temp gauges.Koso north America makes a nice set up.
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Eric, you know me well, and yes I hate computer assisted stuff on the car and excess wires under the hood or in the car.
We are re building the E motor to handle power adder options and I do know "if" I ever use any power adders I will have to get a good data logger.
Right now I am going back old school N/A motor (Or at least from the outside it will look old skool..!!!)
Charles
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Wires and things not allowed in Classic classes at Bonneville.
DW
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Wires and things not allowed in Classic classes at Bonneville.
DW
DW thanks and that is number one reason I chose classic... I am old school,, plus 33 Vicky Fords and 53 Studes just look dam cool... especially in Satin Black !!!
Charles
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Charles, what was the sequence of events? What broke first, the cylinders cracking or the valve stem snapping? What made the cylinders crack?
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Charles, what was the sequence of events? What broke first, the cylinders cracking or the valve stem snapping? What made the cylinders crack?
There is no way to tell for sure what happened first, all we know is it was so close to catastrophic hydro lock.
My best guess was the high cylinder pressure combined with high rpm on an older GM 305 block (street block, not race) caused the cylinders to crack, this let water in and must have caused that exhaust valve to stick open allowing the piston to smack the heck out of it and snap the head off and jam it back up the seat/bowl area as in the pic...
The cracks must have started on the 3 to 4 shift then the valve broke last...
I will never know, but we are sure going to use a much stronger block this time.
Hindsight is 20/20..I wish I knew Dart could have made me a custom 305 block back in 2007 when we built this motor. but now I know...
Charles
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Wires and things not allowed in Classic classes at Bonneville.
DW
Nitrous and Data Acquisition are allowed, right? I believe that is the
furthest extent that Charlie plans on taking any of his motors...
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Thanks for the explanation. It seems logical.
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Wires and things not allowed in Classic classes at Bonneville.
DW
Nitrous and Data Acquisition are allowed, right? I believe that is the
furthest extent that Charlie plans on taking any of his motors...
Data Acquisition is allowed in any class. The use of nitrous would move a car from a "gas" class, into a "fuel" class. In Charles' case that would move him from CGALT to CFALT.
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Correct. I knew N2O was allowed, wasn't sure about data for Classic stuff.
It's just that pesky EFI stuff they don't allow ;)