Not just another SRvsCA thread, actual experience requested!

[M374llic4]

Hey everyone. This is my first post here, and I figured I would make it a good one.

I have searched tens of forums looking for these answers, but everyone seems to shy away and just say "you cant compair 2 totally different engines"

Then what is compairing? Is it not weighing the differences and similarities between 2 different things? What would be the point of compairing 2 engines that are exactly the same?

Anyways, my questions are as follows. (If you have actually driven in the 2)

What kinda of feeling difference is there. Such as, which one pulls harder, do the extra RPM's its capable of actually make a difference when your, say, taking off from a stop light?

i want to be pushed back in my seat and be able to slide it out with ease. Would the CA being the big price difference it is supply me what I am looking for compaired to an SR. From what I can tell the CA will do what I hope it to do.

If not, what must be done to get it to that point? I heard a lightened flywheel can give you that quick rev throw you back feeling. as well as an upgrade to a T28. I am sure other things must be done as well as just a turbo upgrade.

I also heard guys at a local shop say the CA can handle insane amounts of boost, like 40lb and such. I highly doubt that, but what is a reasonable estimate of a good high boost number that is pretty easily obtainable?

Any information would be great!

I am very interested in find out all I can on the CA vs SR vs KA. I plan on getting a CA probably while I build a KAE-T.

Thanks in advance! I hope I didnt reask alot of tihngs that I just didnt notice in other threads.

[1via]

I think all these guys been asked this same questions over and over. There threads on here and 240sxforums that speaks about the comparisons. Dude rebuilt the motor and manage it like anyother and you can slide your butt anywhere.

[rico05]

You don't "need" anything to slide or feel your butt pushed back in the seat (which is caused by torque FYI).

My buddy has a SR Redtop with stock turbo, fuel, and the same bolt ons I have (he has a FMIC, while I have a ARC SMIC). We also have the same turbo (Garrett T25G .80A/R) and on the highway, he at 7psi, me at 8psi, we were dead even. Reaqlly, the motors are very similar when compared to power production, although the SR sees more torque down low, but not so much more that you can throw a big fit about it. SR guys like to trash talk about torque figures, when neither eninge is really making large #s in BPU stages.

Now, as for the 40+psi: Really, any motor can do that on the right fuel and with the right build components. I've seen 13BT 6 ports swallowing 46+psi, so that is kind of an unfair qualifier.

Also, if you want to compare a KA24E-T to a CA, the CA will be much revv happier, will take more boost on the stock bottom end, and will be an easier motor to build up on. Plus, do you really want a SOHC?

Every time I get in my car and crank the boost controller to 10psi I am impressed with the performance.

[OmarM]

Overall they both have the same characteristics, but why I chose the CA is because you can buy a swap for 1000 bucks, by all new components, like water pump, oil pump, forged pistons, full gasket set, and rebuild the motor for less then buying a stock sr swap.

C-Rad has posted his rebuilt pics, and if you look at his pics, his motor looks like he bought it directly from Nissan, new in the box, but overall has cost him less than an SR swap completely stock not knowing whether it has good compression or not.

[M374llic4]

Yeah, I saw his and omg is it sexy haha.

As for the KAE-T I am not keeping the bottom end stock by anymeans, the reason I want to build one of them is because they have better bottom end TQ then a DE. DE's handle top end better, but I never really get up to top speeds ever anyways.

Tq is more what I would like. But again, like you said, for the same price as an SR you get a fresh and sometimes upgraded CA. So I will roll in the CA till I build my KAE-T then throw that in a hatch and the CA in a coupe.

[dvd]

for daily driving, if you're planning on building the ka then probably ka-t would be better. I miss low end torque =[

[M374llic4]

I am building the KA-T regardless for my hatch. I need something for the coupe im saying. I was thinking CA instead of SR.

[float_6969]

IMHO, CA=TheAntiTorque. Don't get me wrong, I LOVE my CA. I wouldn't trade it for anything, but if you want a torquey motor, the CA isn't your choice, and throwing a lightweight flywheel on it won't help it out either. Trust me, I've got one and I know.

In all honesty, this is a mid to high end power motor. As has been stated before, the CA just doesn't really get wound up until about 3K rpm. With some decent tuning, and smart bolt ons, you can get decent power as low as 2500, but nothing that's gonna throw you back in your seat.

But it also has the best potential for cheap swap as well...

OH, and as for the SOHC KA, I actually think it's a stronger motor in some aspects than the DOHC KA, and it has a lot more support from NISMO than the DOHC KA.

[M374llic4]

I agree, the KAE has great unseen potential just like the CA. and honestly I want the CA for the cheapness as it will just be a DD while i build the KA. Something to play around with get decent gas milage. I sure know a 400HP KA wont.

Tell me though, once that turbo spools up and you get some rpm's, its a blast?

[GoofyATX240]

It's great when it spools and everything is said and done.

[M374llic4]

; ) then its settled. CA for the coupe it is. Thanks guys ^_^

[rico05]

I don't get why everyone whines about no torque. I got into imports with a n/a 6pt 13B, which later had intake work and a full RacingBeat Road/Race exhaust. No torque....You guys have no clue lol.

[float_6969]

I agree RICO. If you look at the high end F1 cars, they don't make ANY torque (like 15-20ft/lbs) BUT they make crazy HP.

In all actuality, once the turbo spools up on the CA, it's awesome, and as I've said before, I've probabally got less torque than most CA's on this board, but I've built the motor so that it spools quickly, and that has really made it into a good, fun to drive car.

[M374llic4]

Sweet, I cant wait. Once i get my tax return. its on ; )