mate honestly keep it N/A.. im getting my engine rebuilt at the moment with mazda flat to pistons being bored 90thou over, big cam alot of head work and a stroker kit.. its gonna be pulling a pretty decent figure on a dyno an should be a quick car..its costing me around the same as a bolt on turbo kit but will have more power.. and the sound of twin carbys sound better than a turbo!

Ok I stuffed with the timing before I left work today and it's now going better a 1.5 lancer slowly pulls away lol revs to 5200. I still looking a supercharging or turbo I picked up a ct15 one turbo off a twin turbo 1j Toyota motor bit smaller then the rb20 turbo I was thinking of

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Then you need to go ot the basics and stop thinking about forced inducation for the time being. A stock A12 revs to 5000 no problem. Add a weber carb and it should go to 6000 without a noticeable power dropoff.

A stocker generally will rev over 6000 if the springs are good (stock springs) but power drops off fast after 5000, which is the peak torque spot.

Test this in 2nd or 3rd gear. In fourth gear you are areodynamically limited.

Hey guys I'm after more power in general more torque would be more fun but I would like a tiny bit more legs it's like I get to 3rd gear n it runs out of puff. I'm starting to thing super charging as my motor don't really like revving hi 4500 it loses torque. So yer has any one got photos of a12 or 14 15 super charged? How u do it what carby u using info plz

If the motor is not torquey, then (in general) using a supercharger is better than a turbo, as blower works better at lower RPMs. but it mostly depends on what you want. Either way it will work.

A12 or A15, the blower configuration will be identical. Intake manifolds are slightly different.

Theres a few pictures of my supercharged A15 under my profile. Drawthrough turbo is way easier I reckon.

That's probably cos A series motors are not very torquey down low and turbos run better at high revs. BUt here's what I found in 2 minutes -

http://datsun1200.com/modules/mediawi ... ing_--_what.27s_better.3F

Has any one have or has a supercharged a12?? How dose it go what carb u using blow tho or suck thro?? I need more power lol I'm looking at everything super charge or turbo cheap n easy
Oh n thanks guys u guys are helping heaps I looked thro the wiki nuffing about superchargers all turbo stuff.