1995 Nissan 240sx

Hey guys,

ok I have a couple questions

ok, im thinking about starting a nissan 240sx project, and im torn between a sr20det or a rb25det. Ok Im aiming a 350-375 horses. So what would be the cheapest and easyiest way to get there, and how much would that cost. And its going to be a daily driver and a weekend warrior

thanks  

I suggest that you purchase an SR.  An RB will allow you to start at a higher horsepower rating out of the box, but will invariably cost you more down the road.  That horsepower level is achievable with stock internals.  There's 3 turbos that you can/should consider:

1.  Garrett 2871 .64.  
This turbo will maintain good response, mid-range, and top end, but will require that you throw some supporting mods to obtain it.  These mods will include cams, GReddy intake manifold, exhaust, turbo elbow, downpipe, 850cc injectors,Walbro 255, fuel pressure regulator, computer (Power FC/PRO EFI/Haltech/AEM)as well as a radiator and clutch. It's a good idea to buy a top mount exhaust manifold as well, although this turbo will mount to the stock one.  

2.  Garrett 3071
This turbo will support even more horsepower than what you are looking for, but you can keep stock cams and stock intake manifold.  All of the rest of the mods that I mentioned above will be necessary, however, but you should buy a Full Race twin scroll manifold for good response.  Otherwise, it's going to be a sleepy turbo for street driving.  

2. T3/T4
This turbo will also support more horsepower than what you are looking for, and like the 3971, you can keep your stock intake manifold and cams.  This is the cheapest of all of the above 2 turbos, but the laggiest.  It also requires the rest of the supporting mods as well.

My overall opinion is to go with the 2871 .64.  It's bar far the most common turbo upgrade for the SR for a good reason.  An RB25 is a really awesome motor, but for a daily driver, it's not as practical, especially when you're only wanting 350-375.  

Hope this helps.

Darren  

thanks alot thats a ton of very valuable info but i have a question, im goin to be racing my friends in 1/4 mile, etc. they have civics, preludes, rx8. what should i do if i want a really quick 240sx???  

What you do with the power is your business.  If you're unable to keep up with them at 375whp (which I doubt your friends have considering the cars you just mentioned) then either:

A.  Learn how to drive better
B.  Build your motor and either re-tune for more power or buy a bigger turbo

Why don't you start with what was suggested, and then go from there?