The inlet manifold should clear fine. The only prob is that you might not be able to use a strut brace. It's the height of the block which may cause problems to the exhaust manifold clearance. The ABF install in my car looks the dogs, nice and simple (cheers Matt) as there's none of the K-jet in there anymore. What gear box u intend on using?
i'm pretty sure that if using k-jet on a tall block the throttle body fouls the bonnet; wherease the digi tb has the linkage on the other side so doesn't have that problem.
ok,interesting reading heres my intentions, it wont be an everyday car,so im not bothered about lumpy tickover or high fuel consumption etc. what i want is ideally a 2.1 with the works,carbs or maybe t/bodies,flowed and ported head kr or 9a??? not sure on cams yet everything lightened and balanced. is it possible to buy steel rods at diesel spec? ie same measurements? also are high compression pistons available? using a valver gearbox i think? with an atb diff. the mk1 will be stripped out. anything else i can be going for
mmmm,im guessing that valve/piston clearance may be an issue with using the diesel crank? so high comp pistons would cause more implications?
indeed, but if using lumpy cams you want as much compression as possible, the pistons can have valve cutouts enlarged. you will need a mapped system tho the stock 16v spark map wouldn't be right anymore and you'd risk suboptimal performance and pinking. pistons are cheaper from the states, and it'd be worth seeing what big bore options you can get
i have seen 83.5 and 84mm available in the states.. a lot of it depends how much you want to spend really... i run mine on optimax where possible, or failing that super unleaded still needs setting up on the rollers - as soon as i have sold my spare cams i should be able to get some figures for it!
cheers dex,i can appreciate you may not wanna give too much away do you know what cc using these pistons would give with diesel crank(which one),and are they not stretching the block a little too far prof, cheers, a mapped system? would a dizzyless mbe be upto the job? ive never heard of anyone using mbe on a vag motor,only full management etc on 1.8t's and the like.
Lightening the crank{9A) won't be an isue either mine still idles and runs smoothly from Idle all the way to the 7200rpm with KR injection. Regards, Mike
MBE is the kind of thing, but quite expensive TT mentioned something about a very high spec complete package of ecu+mapping etc i would hang on for the big announcement 800gs can also get your car running on throttle bodies etc with a proper ECU for a good price
brilliant cheers 4 all the info,you can all pat yourselves on the back of course keep the info coming,like.... does 9a have oil squirters in the bores? dont think i want the added complications(exhaust)of fitting an abf with the lhd manifold already being a pain in the mk1.
well mine is 2042 with 82.5 think 83 gives 2071 ish 83.5 about 2100 ish or something 800g's will give you the exact figures - he does them in his head...
does this have to be done dex? 1/do the pistons clear everything? 2/anything else i need to account for,apart from clearing where the oil pump mounts? so,if i have a 9a block bored to accept say 83.5mm pistons with a diesel crank, 3/(from what?)with the clearance work done,is that the main part sorted? cheers Edited by: riley
You'll have to deck the pistons if you use the diesel crank with the standard pistons. Or you could have the big ends offset by 1.35mm further down the rod. If you do this make sure they are machined perfectly.
