924Board.org

[Min]

[Oysteinrb]

then what are the advantages of using Haltech or stuff like that instead of Megasquirt (when the price is not taken into consideration)..?

he had experience with the mentioned twinturbo 944. it was running on MS and it was a real bitch to tune.. anyway, whatever they tried it would not run like it should. they then dropped in an autronic unit and it was quite a bit better. granted, they may have issues with the MS programming itself, but it kinda makes sense that a system like Haltech E8 would woop MS ass...

if i am wrong, please enlighten me! i am here to learn...

[Lizard]

The MS unit has lots of support from the DIY industry, but if you want name brand items then you get those other items,

MS is just different software than the other guys, and maybe not as many bells and wistles.
_________________
3 928s,

[Oysteinrb]

hmmm.... but in my mind, those other systems seem better. i dont know why. i was SERIOUSLY considering MS, but i am not sure anymore.. what is the clock frequency of MSII again? 25MHz?

[Lizard]

http://www.megasquirt.info/
_________________
3 928s,

[Oysteinrb]

its just that, when something is too good to be true (i.e. MegaSquirt is so cheap, and supposedly so good), it usually is.....

[Lizard]

go onto the forums and ask what the people think about it there, I doubt you will hear many if any complaints,

the main things MS doesnt have is tracion control abilities, full sequential EFI and a couple of other not needed items.

look at it like clothes, you can pay $500 for a pair of brand name clothes, or you can pay $50 for a well made pair of jeans that work just as well.
_________________
3 928s,

[Min]

[Min]

http://www.diyautotune.com/cars/customer/parish_turbo_truck.htm

controlling nitrous and fuel on that truck. I saw a video of them dynoing that truck with the squirt on it, looking for that video.
_________________
Custom means it didn't come from a box.
1980 n/a with EDIS and Megasquirt II Injection. 7 different colors and counting.

[Min]

eh, they archived it, that sucks. Oh well.

Min
_________________
Custom means it didn't come from a box.
1980 n/a with EDIS and Megasquirt II Injection. 7 different colors and counting.

[Min]

and just some other points, megasquirt II has fuel control resolution to 1 µsec which is 100 times more resolution than the first revision of megasquirt had with its original code (megasquirt I has since been updated with high resolution code as well) Its fuel tables are 12x12, but its interpolates between tables unlike most name brand ecu's, so its much easier to obtain a nice tune with a smaller table.

http://www.megamanual.com/ms2/indexright.htm

personally, I'm looking forward to when they finish development of the ionsensing ignition control circuitry.

Min
_________________
Custom means it didn't come from a box.
1980 n/a with EDIS and Megasquirt II Injection. 7 different colors and counting.

[special-tool]

This is a good thread.

I am currently working on head lift problems with my 951.
It consistantly has lifted at the 500 rear wheel horsepower level.
The 951 engine has been fine up to just under 600 crank HP. This has happened to 2 blocks now. Both were built by me with my hands.
I am working now on some semi-radical means of keeping the head on with my latest engine, but I won't bore you guys with them .

My point is that I would definitely NOT run 2 bar with my turbo (flows 75 pounds) with cast pistons and rods. If you put 951 rods and pistons (simple swap BTW), you can run 2 bar as long as you use a turbo/supercharger that remains efficient at 29 psi through the 2.5 liters and the very bad 951/944 head.
_________________
951 566/485 HP/TQ at the wheels - pump gas
924S GTR conversion project
Honda 250R- PWK 35mm flat slide, 205 static, Boyesen, Wiseco, DG front/back, Uni, 14/42,

[Min]

[endwrench]

[Min]