Kamotors E30-Turbo to ITB M20

[TeXJ]

Ok so I've lost track of which motor you have in there now?

[kamotors]

Correct. And while people keep telling me "it works that way" it's still not correct, and it gave us problems on the ITB builds we have done. Also, the more sweep you have, the better.

To add, on the street cars we had to increase the resolution at low TPS settings. Really thinking about doing dual maps in the future. Something like map1 0-10% throttle, map 2 10-100%. Local kid came by the other day with his m42 turbo. I was impressed with how smooth the car was having dual maps for increased resolution. He has 0-100kpa in map 1, 100-200kpa in another. Wasn't until I was adjusting some drive-ability issues on the Extrudabody car that I realized how nice the dual maps would be for ITB's in a DD.

Yeah im switching order today, I wasnt aware that variable tps required switching pins. Then doing a port check. Once again whodwho walking me through ecu trouble shooting

[ForcedFirebird]

It depends on the TPS. I have used aftermarket TPS's that didn't require the change, some did, m50 definitely does.

[blck325is]

That sound made me tingly.

[Bullet Ride]

To add, on the street cars we had to increase the resolution at low TPS settings. Really thinking about doing dual maps in the future. Something like map1 0-10% throttle, map 2 10-100%. Local kid came by the other day with his m42 turbo. I was impressed with how smooth the car was having dual maps for increased resolution. He has 0-100kpa in map 1, 100-200kpa in another. Wasn't until I was adjusting some drive-ability issues on the Extrudabody car that I realized how nice the dual maps would be for ITB's in a DD.

That's an interesting point. I'm running dual map for more resolution across the x-axis, never thought of using it for more resolution across the y-axis. That would be useful for tuning an ITB car. I wonder if Tunerstudio will let you use the tables that way? I don't see why it'd be any different.

[ForcedFirebird]

That's an interesting point. I'm running dual map for more resolution across the x-axis, never thought of using it for more resolution across the y-axis. That would be useful for tuning an ITB car. I wonder if Tunerstudio will let you use the tables that way? I don't see why it'd be any different.

I had thought about you too when he showed me. I remembered you are tuning with the vacuum block and MAP, so I know you must be tuning in the only in 80-100kpa range, which does make for very loose resolution.

[Best_name_available]

you're video made me smile :up:

[freeride53]

Hi, can you plz post some of your S60R too? I'm curious as to what you will do with it.

[kamotors]

I had thought about you too when he showed me. I remembered you are tuning with the vacuum block and MAP, so I know you must be tuning in the only in 80-100kpa range, which does make for very loose resolution.

I was on alpha N later in the day as it was easier, I made a whole table that has better low end resolution and only goes to 110.

I tried the ITB mode which blends but it wouldnt even drive so I couldnt continue on it. alpha N was getting better and better and then this issue happened.

Hi, can you plz post some of your S60R too? I'm curious as to what you will do with it.

its funny even with the volvo in its current state I still love it, not hard to work on, TONS of low end grunt. The s60r makes 295ftlbs at 1950rpms lol its awesome. plus the working 4c dynamic chassis is super cool.

It can go from Cadillac soft to coil over stiff with one button, literally rides stiffer than my E30 does when switched to advanced.



sadly here it is currently lol... all new PCV system, new IPD charge pipes, turbo inlet etc. getting motor to 100%. already installed 3" catless downpipe. still needs new angle gear collar as well

[kamotors]

Dat clearance, dual 2.25 to x pipe to 3"axle back

[Wschnitz]

Needs more dual exhaust crossover action.

[kamotors]

so this is taking forever to tune, runs terrible below 50% throttle still adding resolution to the map, hopefully it gets better as I tune it. Need to make this weekends auto-x. sometimes I noticed when I get on the gas from a stop it will go full lean and stall out but thats random and is hard to replicate.

some video coming as well.
[IMG]Kamotors ITB M20 BMW E30 RED by kamotors@y, on Flickr[/IMG]

Kamotors ITB M20 BMW E30 RED by kamotors@y, on Flickr

[kamotors]

exhaust camera


intake camera



still cant cruise without it popping and backfiring through both intake and exhaust.

[MPLFoster]

dat noise



any numbers?

[Bullet Ride]

still cant cruise without it popping and backfiring through both intake and exhaust.

Having both popping and backfiring while cruising would lead me to think that the throttles aren't balanced properly. You can end up with a situation where one throttle is open a little bit more and that cylinder is running lean causing an intake pop and another throttle that is a bit more closed causing that cylinder to run rich which could end up causing an exhaust pop when enough unburnt fuel gets into the exhaust and ignites.

Intake popping can also be caused by incorrect timing, but if you are running the same timing as before and it wasn't an issue then it's likely not the timing.