A15 coupled to 5sp box
Stock rods and crank, Mazda machined pistons, mild worked head, tomei valve springs, good port job and some weber 40's, I built the 50mm exhaust by hand...

Now I must get a taco hooked up, built to make power till 8500rpm,

Link

She has finnaly got some KM's on the built A15.. (and giving some other cars hell including the 300E in the vid) I am so glad now I didnt go SR, CA or any other brand, little thing FLIES, still getting over 14km/L when being driven normaly

Funny, Ive searched here but didnt find anything about it, Here in South Africa we dont get A15's so when i built my imported A15 motor to race spec I used a nice shiney new A14 OEM pump (dont even ask how much it was!!! cost more than the motor), got the motor running open header and everything sounded fine till i finnished up the exhaust and heard the terrible knock... stripped whole motor apart to find all bearing ectr all in perfect condition but a nice smashed oil pump drive.

Might be worth putting in Wiki that the A15 and A12/4 oil pumps are not fully interchangeable unless you change the drive gear, the A15 pump drive is about 1.8mm shorter and is beveled slightly to clear the conecting rod on the longer stroke a15 crank.

Ohh well, one nicely smacked apart ARP rod bolt to add to the dammaged bin.

Fantastic, thanks guys! dont know how I didnt see that when I was looking threw wiki.

At least my project A15 will be running this weekend.

Hi guys,

Busy putting my race prep A15 in to my B110 1200, My A15 distributer is dammaged but visualy looks very similar to the A12 (besides the cap, rotor ectr), is it possible to use the A12's distibuter in the A15? The contact/drive gear looks the same with 13 teeth and the install depth into the block looks the same, just wondering has anyone has tried this? I already have the optical pick up in the 1200 distributer.

thanks

0w anything causes lifter problems in SR20's after some time, its not such a big thing with the roller rocker low port, but it will happen, rather stick to a 10w40 or 10w60, I use Castrol SLX in all my SR20's and RB's and while it does about crack the bank in half it also lasts one whole bunch longer (its the same oil as volvo and similar recomend for their 20 000km services even on their T4 and T5 turbo motors)

Just what ever you do steer WAY clear of Castrol edge, I lost two 350+wkw SR20's thanks to that rubbish before I realised how bad it foams.

Thanks, Ill give it a try!

Hey guys,

Just a quick one, just finnished building a A15 with the following:
11-1comp
288 cam
tomei .8mm head gasket
tomei valve springs
4-1 header
52mm exhaust (it needs to be quiet)
twin weber dcoe 40's
fairly decent port job
ectr,

Can anyone give me the basic jet and emulsion tube specs that would give me a good starting point to go from for an engine of this sort of spec, will tune it with a wide band, just need a starting point,

thanks

I use tomei MLS gaskets, I dont see these leaking with boost,