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| Engine build https://www.ausmini.com/forums/viewtopic.php?f=2&t=37659 |
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| Author: | Sydney_Leyland [ Mon Nov 12, 2007 10:49 am ] |
| Post subject: | Engine build |
Hey fellow ausmini members i've decided id like to learn how to rebuild a engine so i brushed off 1 that i have lying around what id like to know is this worth building on? what is the engine as i have no idea about numbers.. Thanks in advance as i know someone will have the knowledge im after Andrew 
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| Author: | boho [ Mon Nov 12, 2007 10:57 am ] |
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I'm sorry that i can't help with info but you may like to keep an eye on Mick's Build Your Own Adventure thread where he's rebuilding a head from scratch. 
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| Author: | Sydney_Leyland [ Mon Nov 12, 2007 11:07 am ] |
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Thanks for that boho something to keep an eye on thats for sure 
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| Author: | sgc [ Mon Nov 12, 2007 11:07 am ] |
| Post subject: | |
That looks like a completely unmolested 1100, from the engine number and head casting number. You should be able to get significant improvements in power out of that with some fettling , in the 50HP ballpark without forced induction.
If I were beginning an engine rebuild, I'd start with the equivalent big bore myself, but that looks like a good candidate to learn on
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| Author: | Sydney_Leyland [ Mon Nov 12, 2007 11:32 am ] |
| Post subject: | |
thanks sgc what is the equivalent big bore? and will this block be suitable for forced induction as id like to go down that road
i do have another 3 engines doing nothing but taking up room i gotta start doing more work 
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| Author: | Maxi23 [ Mon Nov 12, 2007 11:58 am ] |
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That 12G202 head is a very good starting point as far as heads go. |
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| Author: | Sydney_Leyland [ Mon Nov 12, 2007 12:14 pm ] |
| Post subject: | |
What can be done to this head? |
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| Author: | mini-dunger [ Mon Nov 12, 2007 4:14 pm ] |
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all sorts of things. You can put 1100s valves in it you can grind down the valve guide bosses, you can grind a nice radius on the beek in the combustion chamber, you can deshroud the valves a little. You can tidy up the ports a little too. it will need a good shave after this though Theres heaps more just ask and i will send you some pics if need be Get it crack tested first 
Go have a look at this article, twas sent to me by the good doc.Great read indeed http://www.mlmotorsport.com/forum/index ... c,4.0.html |
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| Author: | pristic [ Mon Nov 12, 2007 4:37 pm ] |
| Post subject: | |
Hi, Welcome to the world of rebuilding and all the fun and pain that comes with it 
I have 'basically' the same as you have there. I have a 998 block but with an 1100 crank (so its an 1100) I have a 12g202 head on mine, it has been very worked by Graham Russell, has the oversize valves, bigger ports, modified chambers, roller tipped rockers, etc. My motor was completely built by Graham and everything is lightened and balanced (the crank, flywheel, backplate, rods, etc) I have an RE13 cam in it from Graham also. The motor made 47ish horsepower at the wheels when it was running badly. It has heaps more oomph now. You can do alot to an 1100.. mine is +.40" over which makes it 1132cc ... you can go up to about +.80" easily... but not sure you need to. I am now turbo-charging it but thats a pretty big and expensive job too... lucky I have friends to help ALOT. I think a worked 1100 will keep you very happy. Dont just rebuild the motor and put on an old gearbox, rebuild that too... its worth it. If you must go turbo, then read lots on the TurboMini site and ask questions here. Couple questions though: Will you be doing the work yourself? Have you modified motors before, for performance? (Minis?) Are you just wanting to put it together for kicks or something that will last you a long time? If you have not done any work before yourself, keep an eye on the threads about rebuilds as mentioned above and get yourself a good book ... maybe by Vizard about working your motor... it will help tremendously. Good luck! Peter. |
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| Author: | pristic [ Mon Nov 12, 2007 7:43 pm ] |
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Oh, one more thing!!! Get the block and head acid dipped (readystrip) its definately worth it! Peter. |
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| Author: | gafmo [ Mon Nov 12, 2007 7:44 pm ] |
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All the above and Specialy what pristic is saying
And if you are interested in Forced Induction ( Turbo or Supercharge) their are plenty of threads to spend a number of Hours. As your not fare away I would also recomend that you take a trip down to GR work shop and Say Hello
Keep us Informed
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