i pulled apart my "siezed" 1600tp yesturday and found a conrod sticking out the top of the crank case so i pulled everything apart down to the crank and found that 2 pistons are cracked, 2 cylinders are cracked and one conrod is samashed!! instead of replaing all this with stocko parts i concidered a big bore kit.. what exactly does a big bore kit contain?? and i was told that the biggest i could go without machinig is 1680cc is this right???
can someone give me a bit of info on the topic i.e how to fit, price, advantages disadvantages,
There are three types of people in this world - people who can count and people who can't....
try a search for 1641, 1776, 1835, 1914 1915 or 1916 in tech forum and am sure you'll find ample info and discussion on pros and cons of kits all the way to building a stroked motor...
the same kind of question is asked fortnightly and the replies are often similar.... has become repetitive...
Big bore kits are basically pistons and cylinders with slight large diameter than stock but the outside diameter of the barrals are the same as stock hence it fits in the standard case without having to machine it. However you end up with a barral with a thinner wall which can case warping eventually and usually big bore kits have a short life than stock. As far as I know, the extra "power" you get is not worth having a much shorter engine life. If I recall correctly, the 1641 is 87mm diameter compared to the stock 1600 which has 85.5mm diameter
Raf
BizarreModeratorThe artist formerly known as blue74l
My turbo (which you saw at the boat ramp) is a 1641. By the carnage you decribed you might be better off ifinding a new engine. The coin will quickly add up once you start replacing bits. They come up here from time to time. I have some bits if you want to rebuild whay you have.
thanks guys. the case IS shagged so i put that in the long term to do pile and might weld it up one one day... i got a single port of a fella and he rekkons its got a mild cam in it so im just gonna put my heads on that and see how we go from there - should be able to make one good one out of two shagged ones!!
vwtyp2, where can i get the machining done and what are you asking for the set (pistons and barels?)
There are three types of people in this world - people who can count and people who can't....
whoever you get to rebuild your engine shouls have machine shop contacts, or ask at your friendly local VW parts supplier.
$250 for the set, which includes pistons, barrels, rings, and wrist pins.
Most people seem normal, till you get to know them.
If you can spend the extra $$$ at the workshop and get everything mchined properly. I once didnt bother and ended up with a poor running engine that scored the bored and needed a second rebuild.
If you can spend the extra $$$ at the workshop and get everything mchined properly. I once didnt bother and ended up with a poor running engine that scored the bored and needed a second rebuild.
Er... you don't NOT spend the money on proper machining
I'd be looking carefully at a pre-built 1916 long motor. Save yourself the hassle of organising machining and sourcing parts. Provided you don't drive like the devil himself, you should get plenty of miles.
you should seriously budget for a new or 2nd hand crank as well. If its done any smashing of pistons heads and rods then it is going to be shagged as well.
