yeh something like that! nothing chromed like bodged on it now (two HUGE 3"ish center exits!) is yours pretty quiet to?
Set PWM current limit to 100% and PWM threshold to 25.4 if your injectors are high resistance.
never noticed this! would of run like this since i fitted megasquirt.
DONE
Your timing is 4 degrees out from mine (maybe not an issue, they all seem a little different. Did you check with a timing light though)
used timing light when i installed the ecu. i guess 4degrees is within manufacture tolerance?
Barometric correction is enabled. Maybe you can teach me about this one, as i know nothing about it lol
not sure about this! cant remember setting it. but it works so ill leave it. initial map reading? i thought thats was ms(and all) ecus do anyway.from what i read you should have this enabled. it takes the reading on power up to know atmospheric pressure. having it on none just uses default as a start (100kpa) which is right at sea level but not as you go higher up. so if you started your car up somewhere with 90 kPa the ecu will default this as 100 kPa... probably wont matter much in the UK as its relatively flat
Is fuel cut rev safe on a turbo? Play with the CLT rev limiters though, its usefull to have a rev limit kick in a a high temp, say 110, then you can feel something is wrong if your not looking at the temp gauge![]()
Overrun fuel cut has eaten a few o2 sensors of mine, they cool too much on long coast downs and shorten the life. I'd personally run stoich on overrun. WB lambdas aren't cheap.
ive read into this. it is safe on turbos. never had a problem with my lambda going over cool maybe its down the the exhaust? ill be removing the WB as soon as its all tuned anyway and fitting a NB just for idle. good idea with the coolent thing
Programming the LC1 and MS for a 10:20 afr gives a higher resolution. the extra few afr range on the default setup are of no tuning use anyway.
how do you do this?found out how and will be done tomorrow
Your maximum saprk duration is VERY low. you should be looking at a 1-2ms figure here. don't confuse this with the MS1 min spark duration. Also your dwell can probably go up a fair bit for a stronger spark. Your coils will take at least 3ms before saturating.
set that not long ago after a STRANGE failure of a coil pack or driver both randomly died. not sure what caused it and 7.5amp fuse never blew :bang:DONE
Look at your tpsDOT values as you are using TPS based accel enrichments. You trigger acceleration only once in the entire logreduce the threshold and adjust the curve. If it feels ok though, you may not need any enrichments at all
forgot about these! played with them once and could never feel anything so just left them... what are yours like?Set to megasquirt defaults which they say is a good starting point
I can see you have played with lag factors. Out of personal preference, i leave these at 100 (unfiltered). You may have a bit of a noisier signal, but its not delayed at all
Cant say ive messed with these. will set them to 100 and see how it goes DONE
AFR's on idle look a little rich.
that would be because when i swapped to the larger injectors i did a silly thing of leaving the fuel regulator hose disconnected. tuned it with an air leak so when i reconnected it the low (idle) went rich
Looking good so far thoughYou can run much lower afr's than me before a missfire. I struggle to get 12.5 without missfiring. Probably due to my high compression.
Keep it up and have fun
Kristian
Just a little question, what size is the boost pipework. is it 2"??
Just a little question, what size is the boost pipework. is it 2"??
The boost pipework doesn't need to be bigger than the smallest restriction in the intake tract , (intercooler input/output, Bob, TB etc) otherwise you can just end up building in lag
and back to my point that the TB doesnt need to be any bigger than the smallest restriction elsewhere, ie the compressor outlet?
yep!.
having mine replaced with stainless at the same time i get the exhaust done :slayer:
nah-ah
it's just going to help the turbo spool up quicker as it has less restriction on its outlet, it has less restriction because there is more space to fill before it hits a restriction (inlet valve).
yeah you'll get more lag, so when the turbo does kick in, it might feel like more power because it's come in at a different point.
Arc's idea is a wonderful peice of whimsy already -- or so it would seem -- blown to buggery by everyone who fitted trickers on high boost tubs and gained -- what -- 5 - 10 bhp over the VAD set up.
On the bending, OJZ say they're willing to try. Obviously, you can't simply ask "can you bend Ti tube?" cos we dunno what grade Tom's supply is. It is tough stuff, though.
Personally, I've yet to come to a conclusion as to what would be better, but aluminium is certainly the most used.
back to back torque curves for this? i want to see how it effects the useuable torque, not just peak power. if it's gaining more peak by just shifting the same amount of torque along the RPM range.. then![]()
and i want to know WHY, why does opening the inlet tract 30mm before the plenum opens up anyway has an effect.