Hey all...

I got an A15 in my 120y.

As far as I know it is stock, it has even and prety good compression, it has a stock inlet manifold with a 32/36 webber, 4-2-1 extractors and a 2 inch exhaust with a straight through resonator and a side exit exhaust. (it is a club car). It also has no engine fan.

Going by the tach in the car she dont like to rev pased 4500 and takes forever to hit 5,000. it dosent stop revving or misfire.....it just slowly gathers revs.

The carb is straight off a 2.0 litre escort and had not been tuned yet, the car does not puff any black smoke under power so I am assuming it aint running to rich.

The timing is still standard but I am thinking of sticking the new set of points I have into it and advancing the timing a little.

Any ideas on how to get it a bit more revvier?

Dont know exactly on a A15. Stock cam would be pretty shocking considering they came out of work vehicles. But I still would of thought it to rev a little higher easily. Maybe to about 5000 or so. Whats the history of the motor. My old stock a14 with 32/26 weber and 4-2-1 extractors used to hit 6000 pretty quick and make no power after.

A fully worked A series can hit 12000rpm.
Stock...well the tacho goes to 8000 so 7000 was the redline if I remember

something's wrong...
I have an A15 with weber 32/36 and it has power pretty well through the range.

I don't think it really revs above 6500 but my engine is very new.

If you have thick oil then that will affect peak rpm, maybe too much oil?

The engine will only make good power to about 5000 so there is no point going much past that because you could damage your engine for no gain.

for the oil, I am using 10w40 mobil oil. I usually change it every month as it costs me nothing...so oil quality aint an issue.

I think the engine was out of a van but the intake and exhaust manifolds that came with the engine stock are different to those off an a15 from a vanette. The exhaust manifold also had an oxygen sensor in it.

What would be helpful is knowing what the max safe rpm is for these suckers so I can set the rev limiter so my missus dont over rev it.

If you really want to know what's going on you need to dyno it and dispense with the guesswork.

i really thought that the only way to overrev was to shift into a low gear going too fast.

taking a 4 cyl to 6000 rpm shouldn't hurt anything it it's in good shape.

now I wouldn't drive around all day at 6000 rpm.

depending on your car you are definitely about to shift by 5000.

well i drive my car like a dirt bike, so YMMV. I also think that the valve train's wear condition has an effect on the top end, and i have a non stock cam.

stock should be good to 5500rpm with a stuglle but #### at about 5200 max as the stock cam setting is making no extra power by then.
With extractors and 32/36 i would still limit it at 5500 for safteys sake if not rebuilt as a15 is all low down tourque and power on stock cam.

i think they make max power at 4000rpm and tq at 2800rpm from an urvan

thanks for that info.

it is used for motorkahna so it spends most of its life in first gear wheel spinning on dirt so limiting the revs is always a good thing as the last thing you are looking at is the tacho!

The dissappointing thing is it dont rev any harder then my old stock a12 did! it certainly goes much harder but is not any revvier.