Mokesta wrote:
That's excellent and is exactly what Michaelb needs to cure hs frozen inlet tube issue.
I have some awesome photos of my carb & intake covered with ice - it doesn't even have to be that cold. When it's chilly and there's a lot of moisture in the air, going along the freeway is just like having cruise control
Mokesta wrote:
You hinted that a megasquirt would give you sequential control. I haven't taken any notice of megasquirt development for the 3 years since I bought mine but I don't think mine is capable of sequential injection.
If you do decide to port inject you'll need to be able to trim when in the cycle the injector fires differently for inside and outside cylinders so you can minimise charge robbing. In my searching 4-5 years ago very few ECUs had the capability to individually trim each injector's pulse adequately. The cost of an ECU that had the right capability and my lack of fabricating skill is what made me park that project.
Since version 3 CPU, megasquirts do now have the ability to run full sequential out of the box with the addition of a cam angle sensor. They've become popular on turbominis, and they appear to be having success with it. I am setting up a MS3 right now for a fella to run a chev motor with sequential gas injection - certainly does have all of the sequential controls and individual injector angle & timings.
http://www.turbominis.co.uk/forums/inde ... 16587&fr=0Once you have the sequential bit under control, it seems all you need to do to deal with the siamese charge robbing issue is to make the injectors really big, then do really short squirts.
Somehow I got the feeling that DOZ on here is already using it with his turbo setup, but can't find any details
A fella named Jean Belanger in Canada has a software modification to run full sequential, specifically for siamese ports using MS CPU version 2.
http://jbperf.com/sequential/index.htmlQuote:
Do you have an inlet air temp sensor in the hot side manifold too? If you do (I reckon you need one) then when you get a megasquirt on it I would be VERY interested to see a log of inlet temperature versus boost pressure over a series of power runs. That would give a clue as to the efficiency of these SC12 blowers and their heat soak over consecutive runs.
M
I don't have an air temp sensor on the hot side, to be honest, I'd forgotten all about the IAT until it came time to install it

so it's just stuck in the top of the air cleaner box. I had all of the sensors hooked up to the Haltech months and months ago, checked they all worked and then put them back in a box... found it again on Friday and went "oh crap"
I looked for places to put it in the intake manifold, but there isn't a lot of room. Next time I have the manifold off I'll weld in a boss for it, and I'll design it into the next version.
The Haltech has a bit of data logging, so I should be able to see the temperature v's boost even without MS. I'm very interested to see it too