alpha tuning problems

[phillipt5004]

hi all i'm having loads of trouble getting a basic tune on my lutz alpha,so i thought i would see if it's my rubbish tuning or is anyone else having the same trouble

[levontraut]

how much fuel have you put through it so far m8??

what i have found that the if there are more ports to the motor the harder it is to tune.

[phillipt5004]

it's not had much, it's been run in as per the book but it has a very strange idle and would cut at the second corner every time.

[mrfodds]

I have the same problem where the idle has to be set quite high or else it cuts out. I'm hoping that once the engine is fully bedded in, around the gallon mark, that I can drop the idle speed down. If not, I'll change the plug to the OD97t med and see if that makes any difference.
Tuning the engine is fine, it's just the idle.

[phillipt5004]

I have the same problem where the idle has to be set quite high or else it cuts out. I'm hoping that once the engine is fully bedded in, around the gallon mark, that I can drop the idle speed down. If not, I'll change the plug to the OD97t med and see if that makes any difference.
Tuning the engine is fine, it's just the idle.

i'm thinking it could be fuel as we both use ammo

['caster master]

If it is at factory settings that could be a problem as the bottom end is always too lean from factory on alphas.

[clunk]

I have had a similar thing with mine from new.

you need to get over a gallon through it and wait for it too loose its pinch. set your idle gap as per the instructions then set your low speed by doing the pinch test to get it in the ball park, then tune the top end. i have found the lsn very sensitive so only a small adjustment at a time and you will not need much. at present mine is no leaner than flush at best, if not a little proud from flush. do not adjust the idle or lsn without fully warming the engine up and get a couple of laps in if you can.

mines run on 25% opti, stock shims, 2081 pipe and manifold, HPI R8 plug and ran sweet all day at Ledbury today and getting good runtimes.

Be patient with this alpha, it is a little different to previous ones, once sorted though, very smooth and quick

[levontraut]

i was running the T3 plug, and it was running sweet.

to get it to run right i must say it took loads of time to get it right and then still more to tweak it. i am currently getting 8 and a half min race time and i know it is still not right as it is to rich bottem end and maybe a little to rich top end as well but, another race day will beable to sort out the motor with a bit more tweaking.

also when i spoke to answer rc they said that once the motor has had the 1 gallon of fuel through it, it does loose its tune and you will need to lean it out a little.

what i would do it cheack to see if the fuel lines are fine. see if there is any leaks or blockages and then go to the motor put it back to stock and work from there.

what are your current settings that you have on it now??

bottom end and top end... how many turns?

i know when it is right it will be about 3 and a half turns and top end would about 5 turns i think it was. i do not remember what answer rc said but this is when the motor is run in.