so what would you have skimmed of the 1.4 multi point injection head to make a safe compression ratio
also what kind of lift dothe cams have on them
Printable View
so what would you have skimmed of the 1.4 multi point injection head to make a safe compression ratio
also what kind of lift dothe cams have on them
As someone who did the 1.2-1.4 conversion, the pistons need pocketing...
I actually did the old fashioned method of measuring all of the bits with a drilled perspex sheet & a syringe then did the sums...
then just to make sure, I measured a photo in an old copy of CCC mag with an article about PMC producing the conversion.. the numbers worked out the same, it was something like a 6mm dish. very similar to the old 1.3 low comp pistons.. the engineering firm would never charge me for doing them cos they didn't want to be held liable.
as for the lazy engine comment... it just had bags of torque. I never tried the big cam etc.
the other thing about doing it to a 1.2/1.3 as opposed to using a 1.4 is that there is no risk of needing to fit an f13 box
mowglie do you stilll need to pocket the pistons if you start witha 1.2 block and pistons and use the 1.2 cylinder head and just change the crankshaft and con-rods
i really want to try this, but im struggling to find the parts to do it (funny that.)Quote:
Originally Posted by mowgli
would rather do it with after market crank and rods.
if you are struggling i belive the 1.3 crankshaft and rods can also be found in the 1.3 carb astras
lol they are rarer than 1.3 novasQuote:
Originally Posted by turbojolt
theres one on ebay out of an astra but its in wales,
anyway rods are sorted :thumb:
just need to find a crank.
ive got a 1992 1.2i and i know this is a stupid thing to say but it appears that the engine is missing some thing ,now ive looked at other engine bays and they have a fuel pump or oil pump correct me if im wrong at on the end by the cam it looks like suttin was there but i bought the car like this and its just looks suspect but it does run well not now becauce it creamed up and sprayed all over the bay lol so if some one could send me a private message or post it on this thread id be grateful cheers
what would you like me to put in your private message? iam scared with your wordage.
you are correct in that some novas have a fuel pump at the end of the cam carrier. however being as yours is an injection it has the fuel pump inside the fuel tank. so you have nothing to worry about with that
lol nuh it was just its quicker for me to read it as a private message than to look through a thread lol and cheers burgo i really did think that it was missing lol
also if i replace the valves is there any work that needs doing to them or are they fine as they are when i put them in brand new ones that is
cheers
you need to grind them in so that they seal properly
annova question i have searched the forums but i cant seem to find exactly how to do a head gasket properly i did it once but loads of water got in the engine and it creamed up harshly and made a ryt state of the engine bay so im not completely sure wot happened but i think it was the head gasket or just me not torqueing it up properly cheers 4 replying
did you make sure not to do one bolt up fully and then do another fully up
as you need to do them up evenly to make a good seal
no i sort of did them up diagonaly if you get me and went from one end to the other in order its hard to explain cheers
very gud info thanx
See! Teh search works!! Good rep inbound :thumb:Quote:
Originally Posted by scottydogg38
Pity the spellbot doesnt.
Txt typn FTL init.
Quote:
Originally Posted by 8vluxe+
1, STOP text typing.
2, GET A HAYNES MANUAL!!!!!! that covers how to do a head gasket lol
right think i'll join in with this now as i have just aquired a 1.2 5 door and a 1.2 2 door hatch atm the 5 door has a 4 branch 1 box system,and has 36k on the clock (gen) so ripe for some new toy abuse, i have a webber 32/34 carb of a 1.3 sr (need find manifold) or i have a 1.4 sri mpi inlet and ecu (no loom)
not sure which to go for or which cam to go with it again this will be just for experiment on a budget any ideas which would benifit most,
i even have a set of 1100 bike carbs. which leads me to another question 1200 bike carb 1200 car engine would this work
3 door hatch you mean sugar ;). you just wish you had a 2 door lolQuote:
Originally Posted by just vaux trev
lol did i not see a (roling shell)wanted by you burgo
doesnt have to be rolling doesnt even need to be a whole shell lol. the floor can have fallen out for all i care but yes i do want a 4 door
/\ is that another loon then or are you joining the good looking club lol
4 door is a loon yes
ah!!! slow me just clicked in yeah 3 door hatch,4 door loon 2 door loon ect,
lol:tard:
hi everyone, just thought id add my 2 pence! lol i have a 1.2 thats properly tuned up and on the rolling road i got 91.2bhp out of it, its amazing what a decent cam twin 40's and a couple of other bits can do! this was all on an untouched bottom end too so if i got in to doing that i could expect over 100bhp the rolling road guy said. 1.2's are great fun but must say that it is best to start with an ealry 1.2 as the heads are better and its just got the better bits on it to start moding it. i say pants to everyone that says dont bother with a 1.2 because i have done the brakes, suspension and engine on mine too and i can keep up with me mums clio 182 on the roads round me and i aint joking shes won night rally championships and scatter championships before so she does'nt hang around too much!! lol
just goes to show that a free 1.2 and a few quid spent on ebay goes along way!
Get in Ben, you stick it to the big blocks !!!!
Now I understand how your car's so effin quick, 91 flamin' brake.
You got any bits lying around in those sheds someone mentioned ya can flog to us on wednesday night? Could do with some grunt to keep up with a mate's 80 brake Corsa C.
haha id give the organiser a ring for wednesday becuse on wednesday at the meeting it was doubtable wether it would run tbh!
i will have a look for you, but what are you interested in doing to it tbh?
cheers
Yer was thinking about the weather.
Haha, improvements.
Want some sneeky stuff for engine, but that'll probably involve skimming etc.
You got anything like strut braces or the likes knocking around.
Car's pretty much standard so anything you think I might be interested in mate.
well i aint got strut braces because im using them at the mo but will have a shufty for you!
id leavin skimming to a lot later on to be honest because unless you is going for proper top end its wise leaving it until you have everything else sorted!
hi, can people tell me what is the best combination engine wise for a 1200 nova. like what head, cam, inlet (eg GTE, GSI, 1300, 1400 or what)also bottom end. although the problem is my engine has to remain looking standard as it is a competition car in a standard 1200 class this means no webbers etc.
cheers
I take it you didnt read the tuning guide then..... :wall:
i did yea, although i read that much stuff there i jus started to get confused as everyone was looking to try different things. i was just wondering if you would be able to tell me what you think would be the best combination bottom end, head, cam, inlet, gearbox etc. with the engine still looking standard. the problem is that it has to be the best combination as many of the people are cheating already and it is impossible to catch them with a standard car. if you could privat message me what you think would work the best it would be very helpful.
rat on the cheaters and win legitimately ;)
im sure theres something about a 1.2 block 1.4 crank, makes a 1.4 or something, i canny remember lol
naa the people running it no they are cheatin but don't want to say anything as they will be cutting there own profits so that won't work. and there is too many people doing it any to strip them all. so if you could help me out.
no its a 1.3 crankshaft and con-rods in to the 1.2 makes a 1400 but these crankshaft are as rare as rocking horse poo
Surely a parts supplier has some new ones?Quote:
Originally Posted by turbojolt