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Post by sammy on Feb 18, 2015 11:23:09 GMT
Finally my house and almost over.This allows me to begin construction of my Rocket with 17 rims and 2.0 Zetec engine.
My primary target is to maintain the lowest possible weight.
Expectations are from 440-450kg....when less even better.
let's see if I can
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Post by airforceone on Feb 18, 2015 11:45:15 GMT
That's very light, I'm not sure you will make that weight.
If you look at MABBS build, I think his is one of the lightest so far and that was about 460-470KGs.
He had wheels specially made along with a lot of carbon fibre parts specially built by RTR.
If you make aroubnd the 500Kgs I think you will be doing vry well as I think the average
weight of a Rocket is around the 500-550Kg mark.
Good Luck.
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Post by sammy on Feb 18, 2015 12:45:41 GMT
I admit that it is not easy to reach this weight. Mabbs has built a wonderful Rocket. The difference that I think I have and that I want to use a lot of titanium and aluminum.
For example:Only in the engine may have a lightening of 12-15kg
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Post by airforceone on Feb 18, 2015 13:17:07 GMT
I imagine carbon fibre is lighter and stronger than aluminium, as for titanium it's just expensive
and shinny.
I would be interested to know how you will save 12-15kg on the engine. Lightening the flywheel will
save you about 4-5 kgs but were is the other 8-10 Kgs coming from.
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Post by sammy on Feb 18, 2015 15:01:10 GMT
Certain that the carbon and lightest of aluminium. it depends on where you use.
But for example if you want to save weight in the engine using an aluminum flywheel.
Carbon is not very good for flywheel...
With a flywheel in aluminum as Fidanza save even 5 kg
My mini alternator weighs just 2,3kg.So you've saved even minimum 4kg.
Crankshaft you can lighten it by at least 1,5 kg
Full titanium muffler makes you save at least 3 kg and then there are the connecting rods , pistons ...
Of course you have to clarify just one thing: My target is the lowest possible weight.Demand and this.
Whether the nonsense or too expensivethis is another question.I would like to share not sell or make money.It's just for me.
The car of Mabbs was certainly not low.And then the titanium and not so extrem expensive,carbon is not much cheaper.
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Post by airforceone on Feb 18, 2015 18:21:05 GMT
Sounds like the engine will be a bit special Sammy.
Wasn't sure aluminium would be strong enough to make a flywheel, seen some steel ones made
around the 4-5kg mark.
Keep the updates and pictures coming.
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Post by carlyd on Feb 19, 2015 10:16:09 GMT
Use the Accord Type R engine, it's lighter and MUCH more powerful to start with.
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Post by sammy on Feb 19, 2015 11:29:00 GMT
Of course I take pictures ..... I just have to be able to put them here With honda engine would not be a bad idea.Now I have all of the Ford, so I leave all F  ocus |
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Post by sammy on Feb 19, 2015 11:30:29 GMT
ok.le photos go.Now you begin
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Post by sandancer73 on Feb 19, 2015 12:48:16 GMT
Aluminium flywheel is interesting, what about the starter ring and the wear from the clutch plate? Titanium exhausts are very light and durable, however expensive, the material is difficult to form (tube and sheet).
Interesting thread...
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Post by sammy on Feb 19, 2015 16:51:30 GMT
wer has all your questions: www.steedafocus.com/parts/costworth-zetec-focus-flywheel/I want to make one like that. According to my calculations the complete titanium exhaust maxes out at £ 500-600.self made. And with things suitable titanium you can train well.I am the engine over in the.For now I'm in charge of chassis. Tomorrow should hope receive the first Titanium screws...Hopefully good |
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Post by sandancer73 on Feb 19, 2015 17:56:14 GMT
The question I would be asking myself is, the money I'm spending on lightening the car, would it be better spent of performance increases (TB's, turbo / charger,etc).
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Post by mawdo81 on Feb 19, 2015 18:49:03 GMT
Sammy has stated his target is lowest possible weight, I like the exercise and would partake if it wasn't my money :-). Out of curiosity I looked at titanium screws and they were 10-100 times the cost of steel or aluminium options....
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Post by kiwicanfly on Feb 19, 2015 19:35:01 GMT
Colin Chapman said "Simplify, then add lightness" in respect of performance gain.
Sammy, have you considered an Ecoboost engine? I believe they are light.
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Post by Deleted on Feb 19, 2015 19:57:54 GMT
I wish you all the best in your lightness quest Mr Sammy.
Think Mabbs car weighed in at around 540kg. Orange rocket (not sure whos) with 1.6 zetec se was around 500kg maybe?.......
Be interesting to see if you can get it down to mid 400's. Would you not be better with 15 rims?
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