I might be getting a 240sx and MAY get a SR20DET (no i am not jumping on the bandwagon, i have been thinking about it for a while) I wanted to know what body style would end up being a better choice. The S13 or the S14. I would perfer to get the SR20DET Black top S-15 VTC (250hp) for the 99 up silvia. Would it fit or would the Black Top S-14 VTC (221hp) end up being a better option.

I also wanted to know about how fast would a 300hp 240sx with SR be in the 1/4 mile

 

Go for the S13. Looks wise, it depends on your opinion(I they're better). Performance wise, they are lighter weight, so better handling and acceleration with equal power.

Just get a red top SR and use the money you save over the S15 engine to upgrade it.

 

uhg. why do people think the S15 engine is the greatest thing since sliced bread? why!!! why!!!! some one tell me. if you plan on doing any sort of mods to the engine the extra 3 grand you spend on the S15 engine is pointless! the neo vvt is eliminated if you intend on doing any mods to the engine. save your money and get an S13 redtop or a blacktop out of an RPS13.

this is just a guess, but 300hp would put a S13 chassis into the mid to high 12's. i've seen almost stock SR's swaps that do mid 13's so i don't see why 12's aren't feasable with about 75-100 more hp.

 

You shouldn't really opt for the S-15 engine, its just more money , comes with 6-speed (which is not really all that), and harder to find OEM parts. I would just go with the S-14 and drop a S-14 SR20DET (redtop) that comes with a 5-speed (which is good for racing or drifting). Also if you have $$$ and you want your car to look flashy you can do a S-15 front end conversion which is about $4000. Save some money and try to find a 95-96 S14 if you opt to do the front end conversion.

 

Id have to disagree here. If the money isnt an issue get an S15. They are pricey, and if you wait about a year they will drop a lot. The VCT (vvt) is not 'eliminated if you do any mods to the engine'. In japan tuners do eliminate it, but thats when they are building high hp engines. Over 450hp i believe.
If you are going for a stock swap i say get a S15 w/ 6 speed. Unless of course you want to just build a drag car, then i say an S13 is a good idea, or the S15, just get the S14 tranny. The fit wont be a problem either way. I personally dont believe in the S13 Sr in an S14. I say if you are going to buy a S14 240, buy a S14 motor or S15. I recommend the S14, its a nicer car, newer. If you just want to race, get a S13...But i do agree the S15's are a little pricey.

An S13 w/ 300 RWHP would get you high 12s...

 

an s13 is a bit lighter than the s14 over all.i plan on swaping in an s14 motor just because the are suposed to be less problem prone (the s13 sr isnt very problem prone though) and te extra hp. but then again an extra gran to work on the s13 sr would be nice

 

the S14 is a blacktop....and also..the 6spd tranny in the S15 is a piece of junk. anyone in japan that tunes their S15 gets rid of that tranny the first thing. they either replace it with an S14 tranny....or they get some sort of sequential like the HKS or nismo sss

 

My S13 is a black top also, whats your point?
The six speed Tranny Is NOT a piece of junk.
People in japan, and the US do use the S14 tranny, it is a little stronger, and the gearing is set up better depending on what you want to do, but the 6 is NOT junk. It is still a very good tranny, and if you were just building a daily driver a 6 might be a little nicer to have. Its a matter of what your going for and your opinions.
jesse.

 

get a red top and mod it. theres not point in gettin ght S15 version if u'r gonna end up modding it anyway

 

then it is out of a 180sx. and yeah, the tranny is junk.

 

Why don't you believe in the s13 motor in an s14? The difference in power vs. cost per engine is considerable and in the favor of the s13 motor. With the money saved by getting the s13 sr you could mod it and have far more power than the stock s14 engine.

Where's the downside to that?

 

You do save money, but its not really legal to put an older engine in a new car....well at least in VA. But people do it regardless, I just think thats his preference. But then again it does seem right to have an S14 with a S-14 engine, but thats me.

 

go with S13 car, and S14 engine. with the S14 you can make more power before swapping the turbo, cause its better. and it has better port design
S14 engine is worth the extra 1 g. S15 engine is NOT worth the extra 4k.

 

battlestylespl, the S15 Tranny is not Junk. By making a statement like that you are showing your ignorance. I would like to keep continueing the thread, but with comments like that, i have no desire to converse with this guy...What facts can you give to back the statement "the s15 tranny is "junk"? That is one of the biggest misnomers 240 people have, and you seem like you fell into the same hole. I really hope you keep your OPINION to yourself, until you atleast look enough into it to make a legitimate statement.

twofortysx-the reason i dont believe in the S13 engine in an S14 is just for the fact that it is illegal to have an older engine than your cars year of manufacture. Not that it really matters. The other thing is that the S13 sr20 is the motor of choice for people who want to race, but if your looking to race you probrobly want to drive a S13. Now if your looking for reliability you might want to go with a newer engine, a S14. If you are looking for reliability you probrobly want to drive a newer car also. A S14. If you are going to race a S14 with a S13 SR, then you will get to a point when you want a lighter chassis to race on and will want a S13. Make any sense? again, i said thats my opinion.

 

so what is the comparison on straight times for the 205 redtop in an s13 vs the 220 blacktop in an s14, i would think that they would be close, but its hard to get a stock time from anybody bc everybody is running 1 bar, and other goodies