lh 2.2 tuning options?

[sbabbs]

Info on how to make your 541 chippable here.

http://forums.turbobricks.com/showth...t=simon&page=2

I do have a couple of lh2.2 ezk bins that are already modified. I got from another member here. I haven't tried them as I don't have a 40 pin programmer. Mine only does up to 32 pins. Also the chip you program is also the main processing chip so you need to buy that first. You can't just erase it and reprogram it. Plus to get that 40 pin original chip out it's easiest to cut the legs off and then you can pull each leg out of the holes and clean them up and put a socket in there. The chip is a MAF 8049H PB A066 Philips.

http://www.happytrees.org/chips?page...t=MAF_8049H_PB

Simon

[mark244turbo]

The MAB8050H has 256 bytes of RAM. That's twice the amount of the stock chip.
Maybe usefull for switchable tables or something.

[g3mccotter]

Thanks for all the added info...

[ZVOLV]

philski o flood has a chipped 2.2 ECU in the FS forum BTW. check it out.

[Lord_Athlon]

im 99.8 percent sure if you got a 2.4 fuel harness and a 2.2 ignition harness, itd work fine.

[g3mccotter]

Really? I have heard otherwise.

Would it be worth it if it did work?

Originally Posted by Lord_Athlon

im 99.8 percent sure if you got a 2.4 fuel harness and a 2.2 ignition harness, itd work fine.

[Lord_Athlon]

You wouldnt have to go 60-2

[Otis]

Originally Posted by sbabbs

I do have a couple of lh2.2 ezk bins that are already modified. I got from another member here. I haven't tried them as I don't have a 40 pin programmer. Mine only does up to 32 pins. Also the chip you program is also the main processing chip so you need to buy that first. You can't just erase it and reprogram it. Plus to get that 40 pin original chip out it's easiest to cut the legs off and then you can pull each leg out of the holes and clean them up and put a socket in there. The chip is a MAF 8049H PB A066 Philips.

http://www.happytrees.org/chips?page...t=MAF_8049H_PB

Simon

I wondered whatever happened with your LH 2.2 EZK project. Yeah, a new 40-pin programmer would run you $300, so you'd have to sell a lot of chips to justify it. And there probably aren't that many likely customers, so it's catch 22.

But if you had the programmer, then any 8749H eprom should work as a reprogrammable replacement for the 8049H originally fitted by Bosch. They come up on Ebay for $20 from time to time, like now:

http://www.ebay.com/itm/Vintage-Inte...item2a1be99159

[mark244turbo]

What would be a good affordable programmer for these chips?
Can they be programmed with the Willems and Top853 programmers?

[dalek]

http://www.jameco.com/webapp/wcs/sto...10001_53057_-1

[doucheNozzle]

Originally Posted by g3mccotter

I have a he341 that i would like to run and am stuck with lh 2.2. What options do I have?

I don't even know where to begin. Why are you stuck with LH? Why are you using a holset?

Originally Posted by 1983Turbo242

Buy a SMT6 piggy back.

Worst idea.

Originally Posted by 1983Turbo242

Piggyback is your best option for drive ability. Around $200-$400, Tuning is crazy easy. runs like a factory car. Most dyno shop will tune perfect power SMT6/7/8 units.

Um. MS is the same price.

Originally Posted by 1983Turbo242

After reading back through this I think $500 has a pretty good hypothetical setup. The only thing I would add is Using a 555 timer circuit and a cheap $14 MAP to control the cold start injector to get accurate fuel up top. It would be $20 bucks and a few minutes to set it up. http://www.rotaryeng.net/simple-cheap-555.html I think it is unusual that you managed to run out of fuel with L.H. 2.2. My setup with a pretty big ebay turbo drops below 10:1 unless I pull fuel up top. Because 2.2 uses a non-linear MAF it tends to dump fuel as it runs out of resolution in the top end. My car is running 850 White injectors with a stock 3bar FPR (albeit K-jet fuel pumps)

Again, MS is the same price. And doesn't suck.

Originally Posted by 1983Turbo242

Well, It is a b21ft with L.H. 2.2 and an M46 and a T cam. (398 head??? just a worked over K-jet head). I use the piggy back to control fuel and timing, so that is how i get the horses out. Just when the piggy back was set to 0 (that means it is not adjusting any parameters) It would run extremely rich up top with my white injectors. LH with proper sized injectors seems to rarely starve for fuel, If anything (FROM WHAT I HAVE SEEN) it dumps too much fuel up top. Because 2.2 only has a few inputs into the ECU, Volvo used a non-linear (more sensitive at low flow than high flow) AMM to improve drivability and fuel economy, So when you really start cranking the boost, it starts dumping fuel to provide safety. My car runs like a factory car 100% of the time,, and I only have 20-30 minutes of tuning done to it, The SMT6 is a great little piggy back for L.H. 2.2.

You're still talking?

Originally Posted by 1983Turbo242

Not quite how it works. At a given load/rpm above normal flow (12-14psi on a T3?), L.H. 2.2 runs rich for safety. You might be able to correct it with adjusting injector size/3"amm/ FPR, but I normally prefer just tuning via software. Getting good power out of 2.2 is about correcting fuel (leaning it out) and advancing ignition timing as much as possible. Lucky from ARD dynoed 285whp on a B21ft with the same 2.2/smt6 setup I am running, and the car ran like a completely stock setup (very smooth).

Originally Posted by 1983Turbo242

Only with a piggy back. I dont thinkl.h. 2.2 has enough timing control to hit 300whp on its own. Like I said early I. The thread. Lucky from ARD hit 285whp with a b21 on a piggy backed 2.2.

Ugh. Just shut up.

[Lando]

Originally Posted by scottyd

I don't even know where to begin. Why are you stuck with LH? Why are you using a holset?



Worst idea.



Um. MS is the same price.



Again, MS is the same price. And doesn't suck.



You're still talking?





Ugh. Just shut up.

This thread isn't about MS, it's about trying to make something out of nothing (LH2.2). Try a little tact, it goes a long way.

[mark244turbo]

I have extracted the bin file from a 591 ecu (LH2.2 turbo) and posted it on the ecuproject forum. For those who like to experiment with it.

My personal opinion is that the car runs better with the 591 ECU than it did with the original ecu (518 or 541?). It seems to revv faster with the 591.