Z32 turbo pistons in SR20DET - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

timtiminy · 01-09-2009, 12:21 AM

If i were going to sleeve the block i would just do an entire bulletproof build with forged rods and pistons, the objective here is to do this as cost effective as possible.

MadScientist · 01-09-2009, 11:08 PM

I am not the God of Z32 pistons... I have just been looking into doing this for a long time and I rarely hear any real info about it.

I will be doing this soon... The only thing I am worried about right now is selling my PE headgasket (87mm) and getting a new PE (88mm) one.

Z32 stock Pistons are 87mm... most aftermarket ones only start at 87.5mm... this is my logical choice of size anyway because finding a 89mm headgasket is just impossable... or not something I trust to use.

If your going to do piston swap on the SR20 the RNN15 GTiR pistons are great and cheep... if your planning to build it, go forged... If you planning to Bore, but keep your stock crank , go with Z32 87mm pistons.
The only real issue is finding them in sets of 4.

The local Machine shop that is highly trusted by many engine builders in this area... Said he doesn't want to sleeve the SR because its aluminum and he would have to re-align the mains... I dont think going over 1mm is going to be that bad on a stock wall, but that is my limit!

-Drew

01-09-2009, 12:21 AM	#1
timtiminy Zilvia Addict Join Date: Feb 2006 Location: Socal Posts: 624 Trader Rating: (0) Feedback Score: 0 reviews	If i were going to sleeve the block i would just do an entire bulletproof build with forged rods and pistons, the objective here is to do this as cost effective as possible.

01-09-2009, 11:08 PM	#2
MadScientist Zilvia.net Advertiser Join Date: Mar 2003 Location: NOLA Age: 48 Posts: 1,972 Trader Rating: (3) Feedback Score: 3 reviews	I am not the God of Z32 pistons... I have just been looking into doing this for a long time and I rarely hear any real info about it. I will be doing this soon... The only thing I am worried about right now is selling my PE headgasket (87mm) and getting a new PE (88mm) one. Z32 stock Pistons are 87mm... most aftermarket ones only start at 87.5mm... this is my logical choice of size anyway because finding a 89mm headgasket is just impossable... or not something I trust to use. If your going to do piston swap on the SR20 the RNN15 GTiR pistons are great and cheep... if your planning to build it, go forged... If you planning to Bore, but keep your stock crank , go with Z32 87mm pistons. The only real issue is finding them in sets of 4. The local Machine shop that is highly trusted by many engine builders in this area... Said he doesn't want to sleeve the SR because its aluminum and he would have to re-align the mains... I dont think going over 1mm is going to be that bad on a stock wall, but that is my limit! -Drew