4K Motor

[Toppy93]

Hey guys i know most of you will say it is a waste of time but i'm on my p plates for another 2 and a half years and i have myself a 4k motor and in queensland can't drive a 4age in a 70 so i would like to know on some stuff i could do to my engine and maybe if people could point me in the direction where to get the stuff from?

I'll start with i already have an exhaust (no extractors), currently got a stock carby but have a 32/36 webber not fitted and thats it.

 

so i was thinking

-shave the head?

-electronic dizzy?

-mild cam?

-extractors?

-91 octane

-new plugs, leads etc?

 

Anything else that could be useful and not massively expensive let me know and please if you know where i could get some of this done at a decent price in south east queensland would be good :)

[ke70dave]

Gday mate, nice lookin car!

 

Here is a good place to start with K motors,

 

http://www.rollaclub.com/wiki/index.php?title=Tech:Engine/K_Series/How_to_build_a_tough_K_motor

 

i think the first paragraph sums it up niceley, but there is some good detail in the above link.

 

Don't spend heaps of money, it's just a crappy old K motor. Balance everything if you can afford it. Use a 20-60 cam in a 3K, 25-65 in a 4K, 4K is better. Run 0.400" valvelift, fit heavy duty springs if you don't want the stock ones to wear out in a couple of years, use 4K valve gear. Shim the oil pump spring 3mm for more oil pressure. Run between stock and 10:1 compression. Get the distributor recurved. Fit extractors and an exhaust larger than 1.5" but not larger than 2". Fit a new timing chain and tensioner. Put something better than the stock carby on, but not too big. Don't rev it past 8 grand.

[Toppy93]

Cheers mate i was looking at that thread last night and just wanted to see some other opinions aswell :) cheers heaps :)

[luk3333]

I would have to say they thing you would notice the most improvement for the least $$/effort would be a weber carb followed by a cam. If it is auto, changing to a manual is also a really good power increase