snwbrderphat540

so i am officially planning on getting another Z after i sell the DSM, by the looks of the market in my area for them i should be able to get 3.5-4k for my DSM. if MY history prooves anything, with just 3k i can make a near show room quality Z, leaving and extra 500-1000 dollars of fun, plus what ever else i save in that time, i think i shall do a turbo swap in that S30. now i sourced a turbo S130 near me that isnt currently running but, i also have a good condition NA block and NA set of rods in my basement and a new engine stand to start building on, now i know the OBVIOUS differences in the engines, but my question is, when it comes to the NA and turbo blocks themselves, just the bare blocks, is there any difference? i read once, ONCE EVER, that there were slightly thicker cylinder walls in the turbo block(and this was in a write up for building a stroker motor), and my same question goes for the NA or turbo connecting rods (you know the rods that connect the pistons to the crankshaft) is there any difference in them? if not, and using the NA rods and block is acceptable, im going to piece together a turbo dizzy and oil pump shaft, efi harness, injectors then the Z31 ecu swap crap and build me something fun! also, was the CHTS needed in the Z31 swap? cause i was hoping to use the N42 head (i have an abundance of them) for the build, but i dont think it has a bung for the CHTS in it....

SHADY280

the blocks are different. the n/a came with the f54 block as well, but only in 82+ models. the f54 has the thicker walls, but its no real biggie unless you are going huge bore, or massive boost that could warp it. prior to that they are n47 blocks, which i swear are shorter than the later ones. as for the rods i believe that they are the same and never changed the design. ive read the how to build the l-series book and nothing was ever mentioned about rods.

NismoPick

Clicky: http://datsunzgarage.com/engine/

#1: 81-83 L28 blocks are siamesed.

#2: The only other n/a vs turbo block difference is the threaded port for the detonation sensor on the turbo model.

#3: http://forums.hybridz.org/showthread.php?t=96209 ... I can't verify this at the moment... just posting what I've found.

#4: Yes, the Z31 ecu uses the CHTS.

#5: I like Shady's comment about reading the How to Build an L-Series Motor book.

snwbrderphat540

i got that book. im just to busy reading crap for school. so basically, the blocks, don't sweat it, i wanted to use upgraded pistons so otherwise i would find a rod/piston setup, but this is more efficient for my purposes, and then basically, i just gotta figure out the CHTS problem..... either find a P90 head, or some how make an N42 work and fool the CHTS or find a way to integrate it some other way. any ideas there?


oh and THANKS! its what i figured i would hear but just wanted to double check.

NismoPick

Use the CHTS in the thermostat housing just like the 280z's w/o the CHTS use the water temp sensor.

snwbrderphat540

hmmm... thats a damn good idea. point well taken! now i just gotta piece together the rest of the randoms.....