1980 120y B310 project

[wattynz]

Hey forum ive owned my B310 for nearly a year and am about to take it off the road for a panel & paint, engine conversion, suspension& diff upgrade. just in need of ideas for parts to use, feed back, advice ect so what better place to start than the day i bought the car a12 auto pretty tidy no structural rust, but started using oil, water, overheating knocking ect about a month after i bought it 

 

put wheels on it 15x7 advanti takashi

 

 

 

fit pretty perfect with no modification, but mother of wheel gap next lowered it and slapped some mirrors on

 

ripped out the old knocking auto a12 and replaced with a donor engine out of a friends who rapped it around a tree, so now up to present a12 manual 

  

any way back on topic i have a s13 sr20de engine sitting in my garage which i plan on putting in with in the next year, has anyone done one before? just working out all the parts i need before i take it off the road.

[ggzilla]

Nice one

[Atomic]

Good choice!  B) How much did it cost?

And here is SR20 swap info

http://performanceforums.com/forums/showthread.php?67246332-SR20-Datsun-Sunny-Coupe

http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=33039&viewmode=flat&order=ASC&type=&mode=0&start=0

[wattynz]

Nz$1000

for the car 400 for wheels so pretty cheap haha thanks ill read through it later on

[wattynz]

So reading through that i need a diff with a 3.9 ratio? But is it easier to modify the original housing to fit another diff head or replace the whole thing with a skyline diff? Or even a hilux one

[ggzilla]

Why do you need a diff with 3.9 ratio?

 

Larger ratios will accelerate faster (some complain it will rev up too fast, but if speed is what you want, 4.11 or 4.625 is the go).

 

Smaller ratios will return better fuel economy at highway speeds. 3.70 or 3.454. But will accelerate slower.

 

If you are reading an account of one person's build, be aware there are always better ways to do it.

[wattynz]

Sweet as thanks what's the best one to use?

[ggzilla]

There is no best, it depends on what your goal is. I generally consider the best one is the one you already have - less work, less money, and already working. Drive it for a while and see what you think.