S14 vs S15 sr20det

[JDori]

what do u guys think. Is it worth it to put the extra money in and get teh S15 SR or just go S14.


I know the diff are minor but i cant seem to find much info on the s15 motors. Is there any diff in their VT systems or are they the same.

[RHDS13]

S15 SR FTW but I would get s14 for the same money as the s15 sr you can get more power its dumb to get s15 sr unless you want 6spd

[juanito]

i would get a s13 and the extra $ that u get instead of spending it on a s14 or s15 u can use it to upgrade the s13 and at the end u will hve more than s14 or s15, now thats wuz up!

[JDori]

yea but i dont want the S13 sr...i want the Valve timing

beside every one has S13 srs......i really want to do a diff build ...tho its almost impossible being ppl have been building up SR for a long time..

[juanito]

whats the big deal with everyone sayin "everyone has it, i want something different"? theres a reason why everyone has it bro, because they are good, parts are easy to get, and "because everyone has it" there are more parts available.... think smart before u buy...

[Lone_Wolf]

i wouldnt

[juanito]

i wouldnt

u wouldn what?

[Lone_Wolf]

spend the extra money on the s15 motor

[JDori]

whats the big deal with everyone sayin "everyone has it, i want something different"? theres a reason why everyone has it bro, because they are good, parts are easy to get, and "because everyone has it" there are more parts available.... think smart before u buy...

well i want the valve timing ...why idk just do
and what makes parts for the S14/15 engine so 100% diff from the S13. i mean i know the heads are diff b/c of the valve timing so they have diff cams, but shouldnt the blocks be the same.....as well as most of the ext mounting points for the manifold. so how would you define them as hard to get parts for.


sine u dont think its smart to get the s14/15 motors, educate me on why i should settle for a S13 sr then. other than i can get one cheap. is it the valve timing motor dont produce hp as good, or something? please educate im looking to learn as much as i can before i start all of my planing and pre building.

[juanito]

i never said s14, s15 parts are hard to get.... im just throwing out my opinion, i mean, of course theres a difference bc of the vavle timing, and i had the same questions u had when i was looking around... now i have s13 sr with minor bolt ons and im runnig more than a stock s14... my point is that with that extra money u can use it wisely.... lets say a good s15 is around $3000 and a good s13 $1900, u have 1100 dollars to spend on upgrades, u can either use it all at once on a bigger turbo or buy several things.

Stock s15 is around 230+ to the wheels
s13 with some mods like mine is doing 221 to the wheels, if i get a boost controller a fuel pressure regulator and 550cc i can go up to 250+...

keep doin research and ask a lot of questions b4 buying something, try to learn as much as u can b4 doing anything... i know just a bit of what some guys on here know

[PSINXS]

not worth it

the s15 tranny is shitty and the ratios arent even that great. the only reason to buy an s15 motor is because it has fewer miles. its better just to get an s13 sr and a s15 turbo. save your money

[JDori]

okay well i guess ill count the S15 swap out, cause i have heard alot about the tranny being weaker...and they are bit on the pricey side....


So i guess ill just stick with S14 sr then.

[MOOREOFSTEPHEN]

Ditto^^^


Agree... save money and do it the easy way out. Trust me after a while you will hate having problems. Gets old fast! s13 sr is good!

Its up to you.

[juanito]

told ya!:wave:

[Andy C]

as soon as you upgrade cams, your vt is gone. the only reason i would get an s14 sr is because it is newer and most likely in better shape than an s13 sr. but i'd just get an s13 sr anyway.

[JDori]

well i figured it this was I wont be going Sr for another 2-3 year....once i finish up with school and get a job in some shop. So i really wont have the need to just go the cheap way, unless within the next 2yrs my pos of a ka goes out.....then ill jump on the 1st good deal for a s13 sr i can get.

im not in any real rush to get boosted.. tho i want to be badly but i can wait for a better time personally. hence why im even bothering getting a S14 sr.


]as soon as you upgrade cams, your vt is gone[/B]. the only reason i would get an s14 sr is because it is newer and most likely in better shape than an s13 sr. but i'd just get an s13 sr anyway.

is this true, are their no cams that adapt with vt.......


aslo do any of the motor adapt diff to the 2.2l stroker kits. Or are these a bad deal.

[Cash]

The vvti is only good if you don't plan on going much over stock on power. Once you upgrade cams, vvti is gone. If you plan on going for 300+hp you might as well just get an s13 sr.

the amount of miles on the engine would be the most important thing for me if i were looking for a new sr. i'd rather have an s13 sr with 35,000 miles on it than a s14 or s15 sr with 70,000 miles on it.



is this true, are their no cams that adapt with vt.......


aslo do any of the motor adapt diff to the 2.2l stroker kits. Or are these a bad deal.

Toda's non-N2 cams are the only cams I know of that work with the factory variable valve system.

As for 2.2L stroker kits, it depends on what you want out of your car and what you plan to use it for. If you're wanting a stroker kit, you're obviously shooting for a big hp number, in which case the vvti in an s14 sr would be pointless.

SR's came from the factory with pretty stout crankshafts, rods, and pistons. They should easily be safe up to 400hp, and maybe even 500hp with proper tuning. If you're wanting to go above those numbers, that's when you should consider throwing out the cast internals for forged pistons, connecting rods, and a stouter 2.2L crank. This will increase the stroke from 86mm to 92mm and increase the bore diameter from 86 to ~87.

Just the 2.2L stroker kit alone will only add about 30-40hp, but the kit will make the sr strong enough to hold up to 700hp and you'll have increased low end torque.

Personally anything over 400whp in an s-chassis just seems scary and unnecessary to me. Unless you're building your car to be a purpose built drag or track car, the 2.2L stroker kit seems a little excessive. Especially considering the prices of the stroker kits I've seen:

A'PEXi - $9,999
Toda Racing - $6,400
JWT (2.4L stroker kit) - $4,459

You're looking at a very expensive car. Something that would make you cry very much if some idiot ran a red light and totaled your car, and you only got $4,000 from their insurance company.

[Barnacles240]

in 2-3 years...SR's will be obsolete...our ass' will be flying

[JDori]

idk the 2.2 stroker was just thought ...i havent had any really solid building on it so i doubt i was gonna carry through with it.

as for the cam thing, i was reading on evans tuning, alot of the sr build running stock cams were in the 350-400whp ranges, and he recommended changing the cams out.

well now that the light has been shined in my eyes about the vt being deleted by cams i guess it doesnt really matter what motor you go with.

But that you guys very much for sharing this information with me, it helps alot with the research i will be doing to start the pre-planning to my car.

as for HP gains since i dont plan on this being my only 240, i will have many diff thing to try l8tr, so i want this one to be in the 350-400whp, max would be 450whp. I guess ill save a crazy SR build for l8tr on in life. (700whp 2.2l)


thank you guys, any more info will be greatly appreciated

[Cash]

in 2-3 years...SR's will be obsolete...our ass' will be flying

yep! :yes:

Just like the Jetsons.

http://i30.photobucket.com/albums/c332/chriscash06/gt12.jpg

[v-empire]

wow at the posts....

how much money you want to spend and what are your goals.

i can help with opinion.

vtc works with aft market cams.

[Andy C]

I thought you told me vt didn't work with new cams dave.

[v-empire]

they do. only up til certain lifts its not worth it, but they do work.

[JDori]

oh god now im confused, So will S14 keep the vt with a 262 cam.


okay as for money not sure yet but like i said goals are 350-400whp range.

its gonna be street/drift/ weekend track car.....something i can enjoy but not restricted to one type of motorsport.

also what is the standard hp limit on the stock bottom end of the SR? what about head gaskets.

i was think of doing some minor internal work before i actually drop in the motor. but nothing major......fresh metal gaskets, freshen up the head.

[v-empire]

there is not saying. 400 is a good limit. depends on how healthy them motor you get.

andy's motor is good for 600whp.

[Andy C]

: )

that makes me feel good to see that

[JDori]

well hopefully by Sat ill have a journal posted up with a pre-planned build up for a motor........till then i start the search for stuff....:D