y2kStangGT

+1. 300tt are not that quick.
don't under estimate 240. a friend of mine has one and that bastard is quick with it. He can hang with evo and sti. that's something for you to think about.

kura

A 240 done right wont hang with evo's and sti's, it'll smoke them. 240's take 2jz's andRB engines with little modification, which are the powerplants found in MKIV Supras and GTR Skylines respectively. It's basically the not so pretty alternative to a really fast import.

Just ask him if the valve cover is silver, red, or black. And they usually have the engine code on them.

Stock SR20DET found in oh sooo many 240sx's. They come with either black or red valve covers depending on the year of the engine. This particular one is from an older Silvia S13. ~205hp.


This is also an SR20DET but it's from a slightly newer Silvia S14. They have black valve covers (commonly called "black top") and have the notch at the end closest to the firewall. They have a little bit more hp. ~220hp.


The newest S15 SR20DET looks much like the S14 version, but it's mated to a 6 speed transmission and produces ~250hp to the crank. This swap is less common because the price/gain ratio is wayyyy worse, they're harder to find, more expensive, and a more troublesome swap. A built S13 red top is as good as any other.

KA24DE - Stock 240sx Engine from 1989-1998


I guarantee you it's either a KA24DE with a turbo ora stock SR20DET. Either way, it'll be slow.
I would post some pics of 2jz's and RB's but I can guarantee he's not running one.

y2kStangGT

good education kura!!!

Crazyfast50stang

Go race him. Its not like us telling you he is super fast is going to make you a better driver or anything. Also with your friends lack of knowledge about cars I wouldnt think he is too good of a driver so you may have that advantage. Anyways report back.

kura

My pleasure

natistang

I raced my friend 6 times in his91 240 with a red top SR20DET and I raped him everytime. He was only running 7lbs of boost though. He just put the boost up to 12 lbs and we are going to race again when we both get a chance. But you should take him if he is running the stock boost.

kura

As noted earlier, a stock 240 with a stock redtop SR20 running stock boost is a really unsturdy, 2700lb, 205 crank hp POS.

At 12 psi, he's probably in the 230hp range at the crank. Give or take a few. But with a little junkyard scrounging and some good hard work, he'll give you a pretty damn hard time.

The great thing about 240's is his car probably costed less than half what yours did, including the SR swap and labor. =/

Xemeth

What's up with the Japanese cars and these wierd *** engine names?

kura

Ok, let me explain.

The naming scheme is XX##XXXX for instance..
SR - Engine line
20 - Displacement (2.0L)
D - DOHC
E - EFI
T - Turbo (or TT is obviously twin turbo)

So an SR20DET is a SR motor with a 2.0L displacement, DOHC, EFI, Turbo.

An RB26DETT (The Skyline GTR engine) would be a RB line motor, 2.6L displacement, DOHC, EFI, twin turbo.
It's just so you can quickly identify an engine.

So you can say, "I've got an RB28DET" easier than an RB26DETT stroked to 2.8L with a single turbo setup.

The common Nissan engines you will hear about involving 240's are:
KA, SR, and RB.

KA - American 240sx
SR - Japanese 240sx (Silvia s13/s14/s15, 180sx, and some various other consumer cars)
RB - Legendary Skyline engine, RB25's are Skyline GTS-T , RB26's are Skyline GTR

You may come across CA18's, RB20's, SR20DE's, etc etc

It's all just japanese efficiency

H0SS302

it amazes me how such small displacement can yield such great gains. in atleast one point in my life i feel obligated to tinker around with a 4banger.