Holley Carby???

[coln72]

Best thing for you to do as a start is to replace the exhaust with a 2" system. don't need extractors if you have the twin outlet pipe manifold. Get the exhaust mob to bolt the 2 inch system to this.

 

Play around with your ignition timing, try around 12 deg advance.

 

Drill holes in your aircleaner housing to let more air in and maybe fit a cold air intake to it.

 

Remove fan to reduce drag. Fit an electric fuel pump.

 

These are some simple things that can be done to improve how a k motor performs without opening it up. most should be Ok if you compete in a stock class.

[toyota_ae71]

i race on dirt in motrkhana's and khanacross and what would ti do if i took off the fan and also i just put an exhaust on it and a new mechanicle fuel pump my exhaust come out of the block in to the manifold soon to be xtractors and then into that standard hot dog looking thing then inro an actual hotdog which comes out just before the diff and is it goin to do it any good drilling holes in the air cleaner wen I'm driving on dirt and I'm just gonna try putting the carby on just see how it goes but i still gotta get an air cleaner and adapter 1st

[coln72]

A fan creates a shit load of drag when you get up in the rev range, so it uses power that could be used to make you go faster :)

 

Drill the holes on the outside of where the filter sits or cut out the side of the filter housing. Air still goes through the filter so no probs on dirt.

 

And what size is your new exhaust? If its standard diameter tubing then it is too restrictive.

Edited September 17, 2007 by coln72

[Des]

Thermo fans are cheap as and so are electric low pressure fuel pumps.

[coln72]

Have a couple of fuel pumps here if you want to try one.

[toyota_ae71]

with the electic fuel pump how does it actualy mount and if it mounts in a different spot how do you cover up the old hole this is on a 4k. what would it change if i used a electric fuel pump and yeah i would try one but how much you want for it? thanks alot for all the info to man!

[Des]

Just make a plate out aluminum or something, I made a mount for my coils in my ke70 ages so a little plate should be easy as and it just covers the hole in the block.

[tas_ae71]

you usually have an electric fuel pump in the boot but to can be put in the engine bay i surpose. remember to put a gasket to stop oil pissing out too.

 

because its still carby you don't haev to have a surge tank as you would for a 4ag conversion. it maybe a good idea to get a regulator so that you don't have too much presure. my ol man has a huge fule pump and he has had problems because of this. we are trialing on of my regulators to see if it fixes these problems.

 

i may have some parts that intrest you, PM'd regarding these.

[coln72]

got one you could have if you want. Might even be able to dig up my modded carby for you to try.

[toyota_ae71]

want anything 4 the fuel pump and what type is the modded carby and how much 4 it aswell plus postage to bendigo, VIctoria