Quote:
Originally Posted by SolTNtuz
Croustibat............. Why are you so against someone doing their own work, many may have failed at doing things but when it works damn it feels good. A LS1 into a Nissan.... Why? You are ruining the Nissan name with that, yes more easy HP but you do not have a Nissan anymore just some Frankenstein type of car that would not handle nearly as well as a true Nissan.
I have had errors in my build but it was all a learning experience, anyone can throw money at someone and say build this but then it is not your build.
this is just my opinion....
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LOL
An LS1 in a S13 makes the car better balanced than with any of the 4 pots nissan ever put in down there. Some people put a 2JZ or an RB25/26 in there, and THAT ruins balance (but hey, it has a nissan badge ! ). That is pure jdm integrism, which is kind of funny considering KAs are found only in US S13/S14 nissans. Everywhere else, there is a ca18det or an sr20det, stock.
I said "ls1" because it has a very good power/$$$/reliability/balance relation, and it will be easier to source than any jdm engine. there are also a lot of available parts for the swap. I think i will get one once my ca18det dies (hard to find in France, but it should be cheaper than rebuilding a CA, getting a new turbo and a stronger gearbox).
Anyway, yours is not an opinion, but pure enthusiasm. It would be an opinion if you actually had built some engines - and if you had, you would really not encourage it. So unless you are ready to stand by your enthusiasm, it is not worth a dime: will you pay his parts and machinist labor that are going to be wasted if he makes a single mistake ? If the answer is no, then you should not tell him to do so. The same goes to Rusker.
Being enthusiastic is nice, but you are actually telling someone that has no prior experience in this to throw thousands of $$$ in building something that has high chances to break; and if it does not, it will be lost money anyway, as these engines are not worth much.
Anyway, i just wanted to warn the OP that correctly (re)building an engine is hard, and usually expensive on the first tries because we all make mistakes; meaning you need to triple check everything and take your time. It is not just a swapping parts job. As long as his decision is based on enough infos -not enthusiasm or videos), i am ok with it, whatever the result may be.
Some tips and tricks :
make tons of pictures;
use CLOSING boxes with labels to store bolts and nuts, and write what goes where;
use stickers on engine, connectors and hoses so you can reassemble in the correct order later;
clean bolt holes and check for wear; be ready to rethread them if they are damaged (you don't want something to break in there )
As far as rebuilding the engine goes, control everything. Use plastigauge to find the correct clearances for conrod and crank bearings. Get nissan ones (they actually offer way more sizes than every other maker). Unsure of something ? Do it again. And use assembly lube, tons of it.
Also, consider bearings as fuses. They are the weak link that gets destroyed so that expensive other parts don't (if you are fast enough). although they do wear out with mileage and bad oiling conditions, and if i remember correctly yours has a high mileage. Don't forget to add "oil pump" to your wanted parts list, and have that block cleaned in every oil gallery.
High mileage usually means oval cylinders, meaning you need the cylinders checked for roundness. It probably needs a new bore, meaning new pistons too. Do NOT get the block machined without the new pistons, they need to be adjusted (measurements are one thing, but having both pistons and cylinders measured by the same company is better)
As far as the head goes, have it checked for flatness and corrected if it is not (same goes for engine block). Considering $$$/power ratio, i can't see the point in porting it or changing cam(s), really. That money will be better spent in new pistons and conrods, even if it does not up power.