pm7 pistons with stock rods in z6?
#1
pm7 pistons with stock rods in z6?
ok i want to build a high compression motor for my daily drive for just a little more power
my DD has 197k on it and at verry low revs when bliping the throttle slightly as the enging settles back and drops a little below normal idle i hear a slight rattle (low oil pressure @ low rpm.. little bit too much clearance on the old mortor..?)
anyway
would it be wise if i used the d16a1 piston and rod assembly
like them rods not gonna come out the side of the block at 7400rpm
clifs
will i run into ROD failure ?
d16a1 pm7 pistons and rods
in a d16z6
thanks guys
my DD has 197k on it and at verry low revs when bliping the throttle slightly as the enging settles back and drops a little below normal idle i hear a slight rattle (low oil pressure @ low rpm.. little bit too much clearance on the old mortor..?)
anyway
would it be wise if i used the d16a1 piston and rod assembly
like them rods not gonna come out the side of the block at 7400rpm
clifs
will i run into ROD failure ?
d16a1 pm7 pistons and rods
in a d16z6
thanks guys
#9
Re: pm7 pistons with stock rods in z6?
The only time bearings will rattle or knock is when they're toast. I almost got a b18b that made lots of noise before pulling - I helped pull it apart, and I noticed pistson #2 & 3 would hover 1/8" before TDC. How it still ran w/o seizing is beyond me.
With a MLS gasket, you'd end up with ~12:1 cr. You'd want to manually retard the timing a bit, or put in a modded P28 basemap with less timing. It might be a stretch on 87 octane. PM3 (D15) or PG6 (D16A1) pistons would get you in the 10-10.5:1 range, respectively, and up to 11.2:1 if you go crazy with a 1-layer head gasket, or mill the head.
With a MLS gasket, you'd end up with ~12:1 cr. You'd want to manually retard the timing a bit, or put in a modded P28 basemap with less timing. It might be a stretch on 87 octane. PM3 (D15) or PG6 (D16A1) pistons would get you in the 10-10.5:1 range, respectively, and up to 11.2:1 if you go crazy with a 1-layer head gasket, or mill the head.