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Hallo, ich habe nicht deine Augen für eine Weile kontaktiert, haben aber eine Frage.
welche Änderungen können Sie auf eine 1.2s tun? i wird ein Blitz die das Schwungrad, den Ausgleich der Schwungrad, Kurbelwelle, Pleuel, Kurbelwelle Riemenscheibe. Ich habe auch einen Anfall ein großes Ventil Kopf, und eine 40 Dellorto. Ich werde Einbau eines elektrischen Ventilator und Entfernen Standard-Ventilator. was andere Modifikationen können Sie tun? was ist die maximale Menge an Energie zur Verfügung. Es ist wichtig für mich, um den Motor zu halten, und nicht ersetzen Sie es mit c20xe.
dank
elliot
hello, i have not contacted your sight for a while, but have a question.
what modifications can you do to a 1.2s? i will be lightning the the flywheel, balancing the flywheel, crank, con rods, crank pully. I also have a fit a big valve head, and a 40 dellorto. I will be fitting an electric fan, and removing standard fan. what other modifications can you do? what is the maximum amount of power available. it is important to me to keep the engine, and not replace it with c20xe.
thanks
elliot
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05.01.13 20.44 |
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inspector.kadett
G´studierter Braxer
Dabei seit: 14.04.04
Herkunft: München-Obersendlin
g
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Hi Elliot!
(first: the google translator is crab!)
to modify your 12 s you have quite a few possibilities. the most is mentioned when you search under "OHV Tuning" in this forum.
OHV Tuning 1,1-1,2L
hope the link works...
in short:
anything you do to the lower part of the engine helps:
- balancing the crankshaft,
- new bearings,
- bore and hone the engine,
- get new 12 S pistons (the S is important, for the higher compression is only(!!!) achieved by higher built pistons!) ,
- lighten the piston rods,
- get everything on the same weights etc (we are talking classic-tuning)
you can find a fair range of crank-shafts always depending what your goal is and what other components you want to use.
I can really recommend steffen here in the forum (name: ohv) he has a small company: reprotec (look it up) (at least for the crankshaft and a suitable exhaust system!!!)
the rest is done with the cylinder-head.
you can find heads from the later corsa a, which has gaskests on the inlet valveshafts as well as wider valves and hardened exhaust rings under the valves.
if you want higher rpm, you will need harder springs for the valves.
you can lower the head for a few mm I´m not sure how much, but it´s been dicussed in this forum.
to smoothen and widen the inlet and outlet canals in the head (widen to fit the gaskests, and there are wider inlet gaskets) gives some hp.
I have no experience with the dellorto carbs and the most recommended is the weber...
always keep in mind, that our engine has only three main bearings on the crankshaft: the higher the revs the more likely the (deadly) damage.
I think it is better to go for some steady 70-75 HP; not to change the compression ratio too much and to use a medium cam shaft, that allows an idle rev below 1000 rpm.
it is possible to get the engine to as much as 90 HP but that will only last for one or two races and these 90 HP you will find way above 6000 rpms
to have it driveable, you will need some power from below.
it is recommended to keep the original weight of the flyweel. to make it lighter, will help the engine to accellerate quicker (mainly when standing withaout a gear, which sounds impressive....)
but you will not get a single HP to the wheels by this modification. the minus is, that your idle rev will lose steadiness and going uphill forces the revs down easier.
if you are from the UK, why not look for a ohv- vauxhall chevette engine with 1300ccm? i´m not sure if this engine came with high compression ratio but too me it sounds interesting...
further questions or details/translations? just ask!
good luck
benno
__________________
72er Automatic Limo 12S ,
66er Kieme (nach 10 Jahren endlich in der Mache)
71er 4T Caravan (vive-la-France!)
1,75 to. Blitz Feuerwehr, Bj 56
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06.01.13 15.41 |
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wacky
Dabei seit: 17.11.04
Herkunft: Mikstat - Polen
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maybe - sport camshaft, but is it still available for Opel OHV motors?
when you get it - dont forget about harder valve springs. it's very important in this type of engines.
__________________
Kadett B Coupe-F 1900 Rallye 69".
Kadett B L 70" 1,2S
Manta B 86" 2,2 146PS.
Saab 9_5 2,3 Aero 305 PS.
Fiat 125p 74" 1500
Fiat 125p 74" 1300
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06.01.13 16.49 |
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uk coupe
Dabei seit: 23.03.12
Themenstarter 
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ok thank you.
i thought google might struggle.
i would like to visit a big EU/ german show one day in it. so i need to practise my german.
what is german for?
1.engine
2.crank
3.suspension
4.cylinder.
thank you
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06.01.13 22.53 |
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inspector.kadett
G´studierter Braxer
Dabei seit: 14.04.04
Herkunft: München-Obersendlin
g
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engine --> der Motor
crank --> die Kurbel (crankshaft -->Kurbelwelle)
suspension --> Die Aufhängung (literally: the Up-Hang-ing)
or Die Federung (die Feder --> the spring)
or Das Fahrwerk (lit: the drive-work)
cylinder --> Zylinder
__________________
72er Automatic Limo 12S ,
66er Kieme (nach 10 Jahren endlich in der Mache)
71er 4T Caravan (vive-la-France!)
1,75 to. Blitz Feuerwehr, Bj 56
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07.01.13 08.30 |
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Impressum
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