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Post by geeves on Mar 22, 2007 19:29:12 GMT 11
After all you have already spent thats not a good result. Can you get second hand engines or crashed trucks with the same engine easily over there?
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Post by superturbocompound on Mar 22, 2007 20:15:53 GMT 11
the engine was already damaged when i was conducting the super/turbo system,i didn't want to use a newly rebuilt engine for testing...anyway about the block,i found 1 with all necessary papers for AUD285.00.it comes with all the bearing caps and is a belt drive unit.
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Post by Jimmu on Mar 22, 2007 20:52:55 GMT 11
My mates 3l running 26PSi runs 620Hp at the wheels...
But thats a petrol for you.
Jimmy
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Post by dani4JB1T on Mar 29, 2007 15:47:15 GMT 11
Maybe its too late, but could you upload some pic of the crack in the block.
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Post by superturbocompound on Mar 29, 2007 22:41:07 GMT 11
which would you like to see, turbo or n/a,i just had the crank and block plastigauge with acl bearings yesterday,all new accept for the block,clearance was 0.076mm.it will be a while before i get the block from the engineering(a few days at the most).thanks for the mail,its going to be excelent reading for me in the next few days....
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Post by superturbocompound on Apr 1, 2007 15:12:47 GMT 11
i'll be posting some pictures of the head/valve job i did recently during the rebuild(cemera ran out of power)
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Post by superturbocompound on Apr 2, 2007 21:55:13 GMT 11
here is a pics of the inlet valve polished compared to the used one from my engine [URL=http://img137.imageshack.us/my.php? image=picture1171qh1.jpg]  [/URL] all the valves on display,   ported exhaust port  and ported inlet port aswell. |
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Post by superturbocompound on Apr 4, 2007 13:16:26 GMT 11
in a delima now,the new (used) block) roundness of the cyclinder is not that round,0.02-0.03mm,i was thingking to sleeve it,and using a deck plate to get it perfectly round,i'm going to use 2mm sleeves then pressing in the liners,any opinion on this idea???
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Post by superturbocompound on Apr 5, 2007 12:16:17 GMT 11
thought about it and i am going through with the sleeving,based on alot of liners i've seen at the enginneering shops there is alot of wear on the top of the cyclinder liner then 10mm downwards all looks good,even the honing marks are still present. ,is there an explaination to this
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Post by geeves on Apr 5, 2007 16:16:07 GMT 11
2 things that affect this.
This is where the piston is changing direction and all the movement in the crank is sideways which can cause uneven wear.
High sulphur fuel forms acid that will condense around the top of the cylinder esspecialy if the car does a lot of short runs. It then corrodes everything it touches. This is quite slow but these engines are 15 years old now
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Post by superturbocompound on Apr 6, 2007 12:35:29 GMT 11
here is the crankshaft after clearance measurement with plastigauge  |
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Post by superturbocompound on Apr 24, 2007 17:54:54 GMT 11
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Post by geeves on Apr 24, 2007 19:02:10 GMT 11
Is lightening the fly wheel a good idea? You need the mass to overcome the compression and its never going to rev much passed 4200
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Post by superturbocompound on Apr 24, 2007 20:29:14 GMT 11
apparently they have done all sorts here and the best compromise they found was about 15kg,they are a few running 10,12kgs and they idle smoothly but suffer top end power.accelaration is quite rapid though,i wouldn't advise on those going off roading,you need the fly wheel mass to maintain at low engine speed.
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adam
Isuzu Junior
Posts: 103 
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Post by adam on Apr 24, 2007 22:42:23 GMT 11
What sort of power are people making there off this motor with all these mods?
Do you have any dyno sheets?
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Post by superturbocompound on Apr 25, 2007 14:18:28 GMT 11
i don't know,but the rodeo on a drag strip are doing about mid 13 second on the 1/4 mile,based on that maybe there is a rough figure on how many hp they are doing.
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adam
Isuzu Junior
Posts: 103
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Post by adam on Apr 25, 2007 23:43:21 GMT 11
mid 13's is insane from this motor. a stock mu would be lucky to do mid 30's I reckon lol  |
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Post by Jimmu on Apr 27, 2007 21:40:21 GMT 11
You would need 250+ HP at the wheels. Considering mine goes damn hard and has just over 100, 250 is a very big ask. It would be great to see it done though Jimmy |
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Post by superturbocompound on Apr 28, 2007 21:04:18 GMT 11
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Post by geeves on Apr 29, 2007 16:40:39 GMT 11
Remember that HP is a calculation of torque and revs. Because diesels dont rev they calculate to very low horsepower although they have mountains of torque. this is why a a 100 horsepower diesel will out accelerate a 120 horse petrol in the same car every time.
Its still a very impressive time
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