Changing crank shaft

zingy · Post by **zingy** » Sun Apr 23, 2006 6:27 pm

Question folks is is a 1.6 daewoo crank shaft compatiable witha 1.5 sohc and if so what if it fits the 1.5 with its connecting rods will it increase hp cause it would definetely would increase compression ratio????
any technical diagrams regarding the two engines would be a treat?????

ubuyau · Post by **ubuyau** » Sun Apr 23, 2006 11:11 pm

On the A15SMS/A16DMS engines in the lanos, the crank and rods (same stroke) are the same. The difference comes in the bore of the pistons.
Both OEM piston/rod combinations give the same 9.5:1 compression ratio, just the bore is different.
So on these lanos engines the "1.6 DOHC crank" and "1.5 SOHC crank" can be swapped because they are the same.

Im not sure about compatibility with the older G15MF engine...

--Tim

MMamdouh · Post by **MMamdouh** » Mon Apr 24, 2006 9:10 pm

i am not sure about hte 1.8 and 2.0 engines as far as stroak is concerned... got to do more search about that.

Tim: this means you can get forged rods for a 1.6 to use it on your car... eh?

MMamdouh

ubuyau · Post by **ubuyau** » Mon Apr 24, 2006 10:19 pm

MMamdouh wrote:Tim: this means you can get forged rods for a 1.6 to use it on your car... eh?
MMamdouh

At this stage im not looking to raise the rpm limit of the engine - its going to be a street car primarily (with the TINYEST bit of drag action and rarely circuit), so high rpm doesnt really suit my driving style or application. The stock rods should be fine for me.

Im tossing up at the moment whether to get the stock rods shot peened, polished and crack tested...

--Tim