What should I do?

[CrzyMR2T]

the ka might produce more power, but not enough for me to change my mind, it doesnt produce that much more. with the sr, the cars better balanced, and it has better aftermarket support.

[stealthj]

uh ohhh, spaghetti o's

im thinkin bout the 1.8 litre turbo CA in my convertible...., minor breathing mods..... does anyone trust racinghard.com

s13GTR, you have yet to give me a price on the CA18DET

[mynismo]

Originally Posted by SR20DETpower

4.)"there was a stock sr on ebay, ran a 12.9 at 100-odd something mph. all stock... just exhaust"

I doubt that... like I was telling you about your car mynismo.. that car probably has some drivetrain mods so it accomodates the power better...

ok ok... i saved all of the info because i could almost BET MONEY that someone wasn't going to believe me.

http://cgi.ebay.com/ws/eBayISAPI.dll...tem=2429943153
12.9@114

i asked him a few questions via email, because i seriously wanted to buy this car but i was about a grand short at the time.


mark wrote:
is the engine stock? i cant believe you ran a 12.9 without other mods... if there are other mods please let me know what they are.

also, did you go to the track or use a gtech?


The engin does have stock internals, it has the front mount from CTR MOTORSPORTS and custom exhaust . We run the car on 15lbs of boost with 110 octane on a stock turbo .All the work was custom done at CTR MOTORSPORTS and they know their shit.The car is truley fast.Honestly they have alot of fast rides they build.The car was tested at the Roswell Dragway , it's a NHRA drag strip . If the car had some drag radials it should easily run mid 12s. Email back if you have anymore questions.

Mark; also remember that this is a blacktop Sr20det , it has more horsepower the the old redtops . We had it powder coated at Costum Coating to match the color we were going to paint the car , we did'nt snap until it was to late that it would look like a normal redtop.If you notice we also had them coat the radiator brackets and the hood prop rod.


mark wrote:
hi,

is the engine out of an s13? i thought the redtop's and blacktops out of those years had the same amount of horsepower. also did you upgrade any of the fuel lines? brakes?

also does the front bumper need to be painted? it looks like it doesnt' match the rest of the body. i have an s13 myself but i really need a faster one.

no i didnt upgrade the fuel or brake lines and the bumpers are faded but there the OGs to the car




ok, let the debate continue

[TatII]

this is why i stoped coming in here. there are waaay too much SR guys who doens't even really know about the KA and they started dissing it. well geniuses. the STOCK SR fully tuned on the dyno running max boost on the stock turbo and bolt ons only puts down 225 at the wheels. is that suppose to be alot of power for throwing around 6K into the car to add bolt ons and dyno time? and the stock SR puts down somethign closer to 160hp at the wheels. my car, i've spend 3K on it. stock internals.tuned, i put down 242 at wheels at one point. but i couldn't get that number to come out agian beucase my waste gate creeped to 9 1/2 lbs. and i'm not even running a big intercooler. for those that dont know, 242 hp at the wheels is about 295 crank hp. right now with no big front mount running only 9 psi of boost, i'm putting down just as much power as a 350Z. and i'm putting out a shit load more torque. i'm putting down around 310 ft lb at the crank of torque. if you want to get to the 230+ wheel hp range for a SR, you need to spend another few grand for a turbo upgrade because the tiny stock T25 doens't flow that much air on high boost. plus a SR is not much lighter then a KA because the SR got that heavy ass head.

P.S. here is a link to a pic of my dyno sheet. remember guys, only 3K, to get the same power out of an SR you need to spend atleast 5K.
http://www.automotiveforums.com/vbulletin/t135945.html

[mynismo]

i dont think there's any question that with the ka you can get more power for cheaper.... but how does the bottom end hold out?

i really don't know. on a stock bottom end, which engine can you get more hp out of?

[Soyo]

Originally Posted by dayna240sx

The only replacement for displacement is technology + experience...

and technology is far more costly than displacement...

although the CA is also a good powerplant to start from.

good point, my moto is 'there is no replacement for displacement' I say go KA and rebuild it and turbo it, thats what I plan on doing as well, as soon as I can find a decent 91-93 240! and don't go high RPM with the KA its not made that way, keep it somewhat the same, stay in the best range for the engine.

[CrzyMR2T]

ok the ka already weighs more than a sr20det by about 50lbs, but then u add turbo, and of course it adds more weight, so theres enough difference in weight that it matters to me. ka might produce more power, but not much more. to add to my reason why id prefer sr over the ka is that i prefer the higher rev of the sr.

[TatII]

well the weak link for the bottom end on the KA is the pistons. the crank on the KA is the strongest out of hte CA, and SR, and even the RB25. it still has forged rods, but the pistons are too high of a compression. if you lower the compression with a nice set of pistons and add a thicker head gasket, the block of hte KA is also stronger then the stock SR block. the stock SR block can handle 400 hp but not for a long time. at thta hp the block starts to oval. so you would need to sleeve the thing. where the KA doesn't need to be sleeved. the most power a KA has handled is almost 600 wheel hp. DUI's puts down 570 wheel hp. thats around 695 crank hp. and he run's 10's. there is no SR in the world that runs 10's. and they have these big tuners tunign SR's. when DUI's car is pretty much some small shop that got it to make that kind of power.

[klohiq]

SR you can just add bolt-ons if you feel like it and get decent power and KA you have to add bolt-ons plus upgrade internals.

Just a matter of preference.

BTW anyone know what a CA will produce with a T28 as opposed to the stock T25? All the rest stock...

[Soyo]

ok so the KA is about 50 lbs more, but seriously do you have to say and when you add the turbo thats even more weight, I mean seriously how much does a turbo weigh? plus the fact that KA cappabillities are a lot better, plus thats not much weight to be added in a car, but once you start upgrading internals and everything they will end up about the same, honestly you could just make body panels all out of carbon fiber or fiberglass and strip the interior if you worried about wieght that much

"SR you can just add bolt-ons if you feel like it and get decent power and KA you have to add bolt-ons plus upgrade internals." -Posted by klohiq

this is true in a way, you'd have to put more into a KA than an SR, but remember the KA comes with the car, the SR has to be bought which already costs more than you'll have to put into a KA, if you upgrade the KA internals it will cost $1,700 for parts and labor and yes I'm sure because I've checked around about it, and an SR will costs almost twice that for the engine and install, and even if you install it yourself you looking at like $800 more, and then if you add exhaust and intake and such to both the KA will be just as good if no better than the SR for about $800 less and be ready for anything you can do to it because of the nice new internals, which the KA still lacks


"if you lower the compression with a nice set of pistons and add a thicker head gasket, the block of hte KA is also stronger then the stock SR block. the stock SR block can handle 400 hp but not for a long time. at thta hp the block starts to oval. so you would need to sleeve the thing. where the KA doesn't need to be sleeved. the most power a KA has handled is almost 600 wheel hp." -Posted by TatII

exactly what I'm talking about, good info Tat


now seriously how can you make an arguement that an SR is better?



just because its not from Japan doesn't mean its not good

[mrflip69]

Dunno but.. weren't both motors from Japan? We just missed out on the SR? Anywho, assuming you put the same work (not money) into each engine, doesn't the SR come out on top with performance/reliability? Just askin.

[CrzyMR2T]

im sure the turbo adds considerable amount of weight, and even if both engines were both the same, id still go with the sr. because of the reasons i mentioned earlier.

[klohiq]

Originally Posted by mrflip69

Dunno but.. weren't both motors from Japan? We just missed out on the SR? Anywho, assuming you put the same work (not money) into each engine, doesn't the SR come out on top with performance/reliability? Just askin.

assuming both engines were offered in a 240sx/200sx/Silvia then yes you would get more power for less money out of the SR..even if the KA has more potential due to it's iron block as opposed to the lighter and weaker aluminum that the SR uses. So it all depends on what you are looking for. CA, even though it has a smaller displacement and is quite a bit older, can offer very admirable performance and has an iron block.

Again, KA is cheaper since it's in this country, but the KA was never offered in Japan or Australia so there it's cheaper to keep the SR. Add to that fact that I'm sure a KA swap would be harder to get ahold of than keeping the SR since there is such a small demand for a KA in Japan.

[TerminalVelocity]

Screw it i'm getting a 350 put into it

[RalphCare]

coming back from the drift event just yesterday, i can honestly tell u that the KA is not meant for drifting, although some people got it to go around pretty nice, but then cutting short on the end of the counter steer.

the engine just doesnt haven enuff high rpm power to keep the wheels spinning. but it will get them spinning down low, but once ur half way into the drift, down low doesnt matter much.



this is just from what i saw. im sure brian and dorikin can vouch for what i just wrote, cause they were there with me.