I was just wondering if it would ever be worth it to swap in an SR20DE from an S-Spec Silvia. I know they produce about 200hp and to me that is more than enough, considering that my objective is to go for even balance other than just throwing in "any old thing" to just make it go fast (as some may have seen in another thread).
So, will it be worth it? And where can I find an RWD SR20DE motor? All I have been finding lately are the FWD ones.
2007 mscc season points champion & rookie of the year PARTS FOR SALE: KA24de valve cover and rubber gaskets: Paint, swap and sell! S14 MAFS adapter & cone filter 1992 240sx se with: working A/C, VLSD, 5 lug, Z32 brakes, MR St. Coilovers, Tanabe F&R ST bars, intake, custom 2.5in Dynomax exhaust, S14 seats, Watanabe RS8 wheels, Potenza RE01R tires, DIF controller & altima electric fans. No stereo, no backseat, stripped hatched 1/4 tank of gas weighs in at 2650
As far as I know, the 200hp SR20DE that you speak of is a tuned motor, from Autech.
99% of the RWD SR20DE motors wont be making that power.
So not only will you have to find a rwd DE, you'll have to find the specialty tuned motor as well.
2007 mscc season points champion & rookie of the year PARTS FOR SALE: KA24de valve cover and rubber gaskets: Paint, swap and sell! S14 MAFS adapter & cone filter 1992 240sx se with: working A/C, VLSD, 5 lug, Z32 brakes, MR St. Coilovers, Tanabe F&R ST bars, intake, custom 2.5in Dynomax exhaust, S14 seats, Watanabe RS8 wheels, Potenza RE01R tires, DIF controller & altima electric fans. No stereo, no backseat, stripped hatched 1/4 tank of gas weighs in at 2650
thanks for comin' around after the initial shock, haha. I did find a regular RWD DE motor for about $1000, and I was thinking of working on it over the course of the fall,winter, and spring seasons of '08-09. Still, looking to go for that hardly ever been done (in the U.S. at least) factor. My other thought was an NA RB25DE, but I'm not quite sure about it.
Thought I was the only one...lol. Currently have a 98 s14 and recievd a free n/a sr20de from my boss that I is in the planning stages of being rebuit, only power adder I plan on using is a small shot of nos. Also going to be backing it by my Auto so that my wife can still drive it. Good luck with your build. New to the 240 life, so maybe we can swap ideas.
Thought I was the only one...lol. Currently have a 98 s14 and recievd a free n/a sr20de from my boss that I is in the planning stages of being rebuit, only power adder I plan on using is a small shot of nos. Also going to be backing it by my Auto so that my wife can still drive it. Good luck with your build. New to the 240 life, so maybe we can swap ideas.
Thats pretty cool. I always go back and forth on either going NA or turbo with SR20, but I think that having a higher performance NA would be better to have...mostly because there are so few of people that have done it. Got any pics of the SR20?
If you REALLy want N/A I still dont understand why you would want to go with a N/A SR
2007 mscc season points champion & rookie of the year PARTS FOR SALE: KA24de valve cover and rubber gaskets: Paint, swap and sell! S14 MAFS adapter & cone filter 1992 240sx se with: working A/C, VLSD, 5 lug, Z32 brakes, MR St. Coilovers, Tanabe F&R ST bars, intake, custom 2.5in Dynomax exhaust, S14 seats, Watanabe RS8 wheels, Potenza RE01R tires, DIF controller & altima electric fans. No stereo, no backseat, stripped hatched 1/4 tank of gas weighs in at 2650
If you REALLy want N/A I still dont understand why you would want to go with a N/A SR
why not? it is something different and rarely seen, except if you were in Japan. Plus, it seems that more parts are readily available, quality parts, for the SR than the KA.
why not? it is something different and rarely seen, except if you were in Japan. Plus, it seems that more parts are readily available, quality parts, for the SR than the KA.
Because your going to be spending a lot more $ for a harder to find motor that, stock for stock, isnt even faster than a KA.
What are your horsepower goals, what are you going to be using the car for?
So you want to spend all of that money on a new motor, not for performance gains, but just to be different?
2007 mscc season points champion & rookie of the year PARTS FOR SALE: KA24de valve cover and rubber gaskets: Paint, swap and sell! S14 MAFS adapter & cone filter 1992 240sx se with: working A/C, VLSD, 5 lug, Z32 brakes, MR St. Coilovers, Tanabe F&R ST bars, intake, custom 2.5in Dynomax exhaust, S14 seats, Watanabe RS8 wheels, Potenza RE01R tires, DIF controller & altima electric fans. No stereo, no backseat, stripped hatched 1/4 tank of gas weighs in at 2650
NA SR actually has a lot better potential than NA KA for the same cost
because of different parts that are available and different combinations of oem parts you can do you can have over 200 rwhp for the engine plus $1k-1500
its something id do in a heartbeat if my power goals were that low
NA SR actually has a lot better potential than NA KA for the same cost
because of different parts that are available and different combinations of oem parts you can do you can have over 200 rwhp for the engine plus $1k-1500
its something id do in a heartbeat if my power goals were that low
Agreed. Although the only hard part is finding a RWD SR motor. The KA motor might be ok depending on what one would want to do with it. I am going for more balance than just slapping a turbo on something. Hell, it is still just a concept anyways. Yesterday my exhaust corroded through and dropped my catback pipe. So I have to go and fix that first.
NA SR actually has a lot better potential than NA KA for the same cost
because of different parts that are available and different combinations of oem parts you can do you can have over 200 rwhp for the engine plus $1k-1500
its something id do in a heartbeat if my power goals were that low
So, what would the price be on the motor and who would carry them? a quick search of jdm motor shops didnt show up anything, nor ebay.
I also couldnt find any information on the stock torque rating.
2007 mscc season points champion & rookie of the year PARTS FOR SALE: KA24de valve cover and rubber gaskets: Paint, swap and sell! S14 MAFS adapter & cone filter 1992 240sx se with: working A/C, VLSD, 5 lug, Z32 brakes, MR St. Coilovers, Tanabe F&R ST bars, intake, custom 2.5in Dynomax exhaust, S14 seats, Watanabe RS8 wheels, Potenza RE01R tires, DIF controller & altima electric fans. No stereo, no backseat, stripped hatched 1/4 tank of gas weighs in at 2650
you want to put a 2.0l i4 in place of a 2.4l i4? sweet!
hey, i was confused on his motive to, but at least i'm staying open minded and trying to learn about the pro's cons of this :P
2007 mscc season points champion & rookie of the year PARTS FOR SALE: KA24de valve cover and rubber gaskets: Paint, swap and sell! S14 MAFS adapter & cone filter 1992 240sx se with: working A/C, VLSD, 5 lug, Z32 brakes, MR St. Coilovers, Tanabe F&R ST bars, intake, custom 2.5in Dynomax exhaust, S14 seats, Watanabe RS8 wheels, Potenza RE01R tires, DIF controller & altima electric fans. No stereo, no backseat, stripped hatched 1/4 tank of gas weighs in at 2650
for around $2500-$3k tops total investment you can have probably 200-210 rwhp
try and show me that in an NA KA thats anywhere near streetable
the SR is a much better NA option, its just that if your goals are at all past that power level you get into the expensive stuff, where a turbo becomes a financial no brainer
Im Reading this an going why ....KA is so torquy and fun plus its there already y spend a crazy mount on a SR when you can find a cheap KA anytime. Theres no fun without torque unless you get a turbo. Thats in my opinion.
for around $2500-$3k tops total investment you can have probably 200-210 rwhp
try and show me that in an NA KA thats anywhere near streetable
the SR is a much better NA option, its just that if your goals are at all past that power level you get into the expensive stuff, where a turbo becomes a financial no brainer
So youre telling us that for 3k in naturally aspirated mods, theres no way to make a KA with 200 whp? The KA has the potential to hit 200 whp cheaply, and its got an advantage over the SR in displacement. I don't see why it cant be done, you'd just have to get decent deals on the parts and install the stuff yourself. I think a competent tuner could do it. Heck, give me 3k and I'LL do it! Maybe a poll will reveal who already has it done and how much they have spent...but most just turn to boost...
I did some math and here's what I have spent so far and will spend soon and the gains I expect to see:
AEM intake: 200.00 / 8 - 10 hp DC 4-2-1 Header: 388.00 / 12 - 15 hp 5Zigen Border III exhaust: 600.00 / 10 hp BC stage 2 cams: 300.00 / 10 - 12 hp
So far we have:
1488.00 for 47 hp
The gains are averages, the exhaust is one I saw in the January 08 Import Tuner where they tested it on a bone stock 92 240 and it made 19 hp at 5400 RPM and an average of 9 TQ, so I am estimating on that one, but it is promising.
Base hp is 155, dyno showed 127 to the wheels. So, with these mods, I should have 174 at the wheels and still have 1512 to spend for fuel system upgrades, piggy back ecu and other stuff. I don't see it being all that hard to make 25 - 30 hp with about 1500 bucks. Higher compression pistons and minor fuel system upgrades would be my next options...tune that with a wideband yourself to save on dyno time and I bet it could be done. Its all a matter of preference, really...
Not trying to contradict what you say but in my experience, I have never gotten more than about a 10-15 horsepower increase with these combined. Intake 4-2-1 header High flow cat 3 in. exhaust.
I've had those mods on 3 different cars (2 s14's, 1 s13). and all results were the same. the least amount of improvement came from the Intake. In the end I wound up going with a s15 blacktop sr in s13. By upgrading the cams and fuel sys. combined with all the above. I'd say your max # would be around 170-185 IMO. thats w/o going into the bottom end of the engine. But I may be wrong.
show me one dyno graph of those 4 parts combined getting a ka to ~175 rwhp...youll find theyll get you to more like 155, 160 tops
on that note, find me a street driven NA KA that has above 200 rwhp, ill be waiting
show me a street driven 200hp n/a sr20de. i want dyno proof and video of normal street driving also.
see how easy it is to make "show me demands". i will give you one thing though, only race ka's make over 200whp n/a. but there are a few that with cams, i/h/e and tuning make around 170-175 whp. there is one guy that made close to 200whp with itb's, bc stage 3 cams, custom headers, and an aem ems tune. did he drive it on the street, i doubt it but it is out there. just to clear things up i don't think either the ka or sr n/a can hit 200+whp.
I did some math and here's what I have spent so far and will spend soon and the gains I expect to see:
AEM intake: 200.00 / 8 - 10 hp DC 4-2-1 Header: 388.00 / 12 - 15 hp 5Zigen Border III exhaust: 600.00 / 10 hp BC stage 2 cams: 300.00 / 10 - 12 hp
So far we have:
1488.00 for 47 hp
The gains are averages, the exhaust is one I saw in the January 08 Import Tuner where they tested it on a bone stock 92 240 and it made 19 hp at 5400 RPM and an average of 9 TQ, so I am estimating on that one, but it is promising.
Base hp is 155, dyno showed 127 to the wheels. So, with these mods, I should have 174 at the wheels and still have 1512 to spend for fuel system upgrades, piggy back ecu and other stuff. I don't see it being all that hard to make 25 - 30 hp with about 1500 bucks. Higher compression pistons and minor fuel system upgrades would be my next options...tune that with a wideband yourself to save on dyno time and I bet it could be done. Its all a matter of preference, really...
Those are HP numbers not whp on top of the fact your estimating, and a intake does not get you any power. The ka24e-de has been hard for anyone to get 200 whp with all those parts and tuned. So to the OP smart decision if your looking for the quick 200 right off the back possibly more if he decides to turbo after he has it
Didn't anyone see Mike Kojima of NPM build a B13 Sentra n/a fwd sr with 11:1 compression pistons, race ported head, cams, ecu tune, and everything else bolt-on and only make 160ish whp? Wouldn't the rwd n/a sr have similar or even weaker results in the heavier 240?
Well, I stand corrected on the hp numbers then. I'll trust the guy who said he has had that combo on three different cars.... To each their own, but I still think 3k in mods will get you further on a higher displacement engine than a smaller one. I saw someone on here saying they got some higher compression pistons (I wanna say Arias) for 800.00 bucks. Thats rather cheap in my book...So with the mods listed and higher comp pistons, maybe a piggy back and some injectors, you could probably get CLOSE to 200 whp...possibly right at 175 -- 180. If all else fails, a 50 shot of NOS does the trick! LOL.
It would be cool if a modified sr20ve could fit an sr20de or det silvia trans and swapped in a 240! A high revving n/a 240, like an s2000 for Nissan. I've seen a bolt-on sr20ve with n1 cams make over 190whp somewhere on this forum, so it should be able to make over 200whp with a higher CR and/or more tuning, maybe?
JHot imports averages about 2 SR20DE's every 4 to 6 weeks on EBay. They are very complete motorsets, almost always include the complete exhaust manifold to include the b pipe, and usually sell for about a grand shipped. The VE internals will work with a DE block except for the cams. The VVL is different than the system used on the S14 DE, but the pistons will raise compression to close to 12:1 if I remember correctly. Could be wrong about the compression ratio.
please tell me why u would spend 1500+ all the time and bull**** for 200rwhp... are u smoking crack? spend another 1000 and u can get an sr20det making 260rwhp+ with some torque to boot. u honestly are wasting ur money trying to make any hp out of a 4 banger without boost, its just not gonna happen and if it does ur still going to be slower than 99% of ppl with engine swaps. if being different means being the slow kid, then by all means do the sr20de swap.... if u want to have a decent performer at least swap an sr20det or go with a small turbo for the stock ka24de
No one has to explain anything to anybody. Not one way or another. Boost is not for everyone, nor does it make one car a better performer than another. Personal preference will always be up to the individual, thats why you think your way is better. Me personally, I'll take an S2000 over an SR powered car any day of the week. That or a late 90's Miata. Or a late 70's big block Camaro. Silver. With no rear spoiler. 4 speed.
show me one dyno graph of those 4 parts combined getting a ka to ~175 rwhp...youll find theyll get you to more like 155, 160 tops
on that note, find me a street driven NA KA that has above 200 rwhp, ill be waiting
If you read correctly you'll see where you made a mistake. I didn't say those four would get you 175 whp. I said those four plus some cam swap, some fuel upgrades and programming maybe even a head job, MIGHT get you to 170-185 whp.
2007 mscc season points champion & rookie of the year 
....KA is so torquy and fun plus its there already y spend a crazy mount on a SR when you can find a cheap KA anytime. Theres no fun without torque unless you get a turbo. Thats in my opinion.
