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Geez..... Tough crowd!

Was taking for granted Diff / Tailshaft / links / surge tank etc, etc, upgrade.

1200U, mate I am all for SR power, but I remember when your ute crossed up on the highway at about 140 clicks infront of me!! Just smokin the tyres.... Respect to your CA mate...As for comments with regard to modifcations to fit the SR....It is not as hard as everyone is making it out to be... I did not have to modify my firewall at all and you cannot even see my intercooler through the grill....It all fits in pretty well!! Love your work 1200U one of these days the SR MIN712 is going to smokes your CA!! HA HA

Arent CA's renound for busting big ends all teh time and have alot of spark problems, everyone uprgades to aftermarket coils. I havent heard to many great things about SR's there heavier arent they? I think the big fad now is RBs into 180s dam rice rocket drift pigs

11's! i havent seen to many CA 1200s run 11's without mods to diff, tyres, links etc etc.. but yeah coops is right that power wise to price wise CA's are the go, but as what was said earlier i would like to see the price differnce bettween doing up SR v CA with similar mods and times.

Vote 1 CA18DET........

Seriously though - How fast do you want to go?

1200 + CA18DET with a T28 (SR20) ball bearing turbo & some RB25 injectors & you're looking at 11's.
Which (I reckon) is just about as much power as you want on the road.

If you're off to the track, you're gonna have all sorts of fun getting the power to the ground even in stock CA trim.
I mean the A15's give the CA guys plenty to think about at the track due to usable power.
So it's a case of bigger isn't necessarily better for the track.

Beyond that - bigger turbo, forgies etc, etc..... $$$$$$$$$!!

If you want faster again, then you're probably looking at a drag-specific car anyway.
In which case you may as well go down the SR20DET path as you don't have to worry about rego etc.

ie/ My two cents = SR20DET for the strip, CA18DET for street .

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unlike the CA which doesnt always break and need maintenance

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a block that pistons like to go through when decent power starts to come its way


hahaha i love the 12OOU v SR Bro rivalry

Its all datsun love here

I went for the CA because it fits in the 1200 engine bay a whole lot nicer (from what i've seen) without the need to recess the firewall or have the intercooler sticking through the grill.

CA's are a whole lot cheaper than SR's, and while there may not be as many of them, every man and his dog that owns a CA powered 180sx or silvia is upgrading to an SR these days which means that there are heaps of unwanted CA's laying around.

Its possible to get 300rwkw out of a CA, (fairly comfortably) which is waaaaay more than neccesary for a street car, so why go through putting a SR in when a CA will do?

The only thing i haven't really looked at is what it will cost to build a 200rwkw SR compared to a 200rwkw CA.

Please pick this comment to bits if I said anything wrong.

Go the SR20!!! I love the fact that they are easy to maintain. Due to the timing chain, there is no regular belt changes which is great! They also have an alloy block....The SR makes really good torque. In my ute, it hammers!! My brother is in the middle of his VVT NA SR20 conversion(2QK4U) The SR is a realy nice engine, it has a nice note and you can pump some serious horsepower through them with the standard internals!!! Aside from legalities, it is in my opinion a great engine!!

The SR has been out of production for awhile now.

As has been stated previously, most choose the CA for registration purposes. Other reasons are that they are significantly cheaper than an SR to purchase and fitting kits and knowledge are quite easy to come by because so many people have done the conversion.

You are correct that it is easier to get parts like Power FC's, winged sumps etc for an SR. I'm sure this situation will only be tipped more in the SR's favour as the years go on too. That doesn't mean the same parts are not available for the CA, it just means you need to look a bit harder.

It's a tough decision so, if you can, get a few rides in different converted cars to see what you prefer.

Good luck with your decision mate.
Regards Matty

old argument.

CA18det = street legal.
SR20det = newer, little more power, heaps more parts globally, many more of these engines in Australia, so more parts for a long time.

Both are pretty good engines, both have their downside. Steet Legality is the main reason so many of us chose the ca18det.

If you can't chose what engine, you're going to have trouble choosing a colour

ca v sr thread
try searching.

i am sure there is stacks of bolt ons around i know there is even stroker kits for them!!!