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ExplodingSims posted:
Is...that on a Twizzy?
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Nov 27, 2017 17:32
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| # ? May 11, 2024 12:05 |
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beep-beep car is go posted:Is...that on a Twizzy? i like ur username that is all ----------------
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Nov 27, 2017 18:56
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DICK DICER posted:i like ur username that is all It was given to me in one of the GBS rename threads. I like it too.
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Nov 28, 2017 17:18
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So I've been doing some research on MegaSquirt, and it certainly sounds appealing. Has anyone here used it so far? How hard is it to work with? It looks like it's not too bad to work with. Also, is it supposed to be a total ECU replacement, or do you still need the OG ECU?
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Dec 5, 2017 00:44
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ExplodingSims posted:So I've been doing some research on MegaSquirt, and it certainly sounds appealing. It can be a total ECU replacement. Depending on model, additional hardware or different firmware may be required for ignition control if desired. I’ve built a v1.01 and a v2.2, but have yet to put one in an actual vehicle. Both units were operation, however. There is a “stimulator” available that lets you simulate sensor and rpm inputs so you can verify operation on the bench. Pretty cool. Edit: your TBI Chevy v8 is literally what the MS was developed for as a test case, BTW. Bowling, one of the co-creators, has or had a Jaaaaaaaag XJ6 with a small block.
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Dec 5, 2017 00:53
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ExplodingSims posted:So I've been doing some research on MegaSquirt, and it certainly sounds appealing. Total replacement, lots of people make them for you to buy and the sloppy mechanics guy uses them to get 1000+ bhp put of junk yard LM7s
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Dec 5, 2017 01:30
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Darchangel posted:It can be a total ECU replacement. Depending on model, additional hardware or different firmware may be required for ignition control if desired. So what did you buy exactly? Just a kit like this one? https://www.diyautotune.com/product/ms230-k-kit-with-mapdaddy4-upgrade/ I'm really interested in this, but it seems kinda pricey and I'd find out I bought the wrong thing.
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Dec 5, 2017 02:51
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ExplodingSims posted:So what did you buy exactly? Just a kit like this one? 
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Dec 5, 2017 02:59
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ExplodingSims posted:So what did you buy exactly? Just a kit like this one? https://www.diyautotune.com/product/megasquirt-i-programmable-efi-system-pcb2-2-kit-w-black-case/ is the simplest one that just has 2 injector outputs.
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Dec 5, 2017 03:10
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mekilljoydammit posted:https://www.diyautotune.com/product/megasquirt-i-programmable-efi-system-pcb2-2-kit-w-black-case/ is the simplest one that just has 2 injector outputs. There are some fantastic writeups about how to MegaSquirt convert TBI GMs with a kit like this one. https://www.diyautotune.com/support/tech/install/chevrolet-gm/megasquirt-your-sbc-v8/ https://www.diyautotune.com/support/tech/install/chevrolet-gm/carb-to-efi/ GM TBI with fuel only, distributor still runs ignition: https://www.diyautotune.com/support/tech/install/chevrolet-gm/carb-to-efi/part1/ It is so flexible that there's a ton of information about it but not very much about it seems directly relevant. These write-ups helped bridge the gap for me a lot. If you are cheap but can ingest a lot of PO fuckery, you could also buy a used partially-assembled MegaSquirt off Craigslist or your local ricer forums to save a few bucks. I've gotten two this way, though I've used none. Seat Safety Switch fucked around with this message at 03:31 on Dec 5, 2017 |
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Dec 5, 2017 03:14
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BECAUSE THAT'S NEVER HAPPENED BEFORE. NO SIR NOT ON THIS PROJECT mekilljoydammit posted:https://www.diyautotune.com/product/megasquirt-i-programmable-efi-system-pcb2-2-kit-w-black-case/ is the simplest one that just has 2 injector outputs. Ok, I wasn't sure which one was the better option. According to their website the MS1 doesn't give you control over the IAC Valve, if that's a big deal. Would it be worth it to spend the extra bucks for the MS2? https://www.diyautotune.com/support/tech/install/chevrolet-gm/megasquirt-your-sbc-v8/
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Dec 5, 2017 03:17
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Iac control is huge for non race car applications. I've tuned a couple of them on miatas and they're fairly straightforward. The hardest part is how universal they are. You'll have to configure the voltage range for every major sensor, say map/maf, iat, ect, and everything in control of timing, ignition, and fuel injection. It is complicated but it can be done and we can help. Also seeing the truck on a dyno one day would be peak ai. Edit:. They say preconfigured for gm sensors. This will help. honda whisperer fucked around with this message at 05:07 on Dec 5, 2017 |
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Dec 5, 2017 04:49
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Could you not download and flash a base config + fuel map for a TBI and then tweak it for power on the dyno/road tune like almost every other programmable ECU allows you to do?
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Dec 5, 2017 06:09
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Don Dongington posted:Could you not download and flash a base config + fuel map for a TBI and then tweak it for power on the dyno/road tune like almost every other programmable ECU allows you to do? That's basically what he'll do with MegaSquirt, yeah. If he uses a wideband, there's some really nice auto-tuning functionality as well. There's still some configuration needed since the MegaSquirt can deal with a bajillion different kinds of sensors. You just need to go through a few dialogue boxes and set what kind of sensors they are, but chances are there's a pre-canned setup for a GM TBI assuming GM was pretty consistent. Seat Safety Switch fucked around with this message at 06:15 on Dec 5, 2017 |
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Dec 5, 2017 06:11
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Don Dongington posted:Could you not download and flash a base config + fuel map for a TBI and then tweak it for power on the dyno/road tune like almost every other programmable ECU allows you to do? I mean, that's kinda what I'm asking here? This is pretty much baby's first foray into ECU setup/tuning so this all pretty uncharted territory for me.
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Dec 5, 2017 15:03
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ExplodingSims posted:So I've been doing some research on MegaSquirt, and it certainly sounds appealing. I'v megasquirted my landrover but my thread has now dissappeared into the archives. Its a total replacement but be prepared to do a LOT of reading up and learning and spend some time with the multimeter and learning how to test every single EFI component separately.... I also had to learn how to solder after changing components part way through and having to upgrade my pre-build ECU to suit. You should find it slightly easier than me as I went from carbs to a combination of custom EFI parts fitted in a space where they were not supposed to go whereas you just need to plug everything that is already there and working back in (and add a wideband) and you have loads of space to work in! ... Don Dongington posted:Could you not download and flash a base config + fuel map for a TBI and then tweak it for power on the dyno/road tune like almost every other programmable ECU allows you to do? Yes you can. You need to buy the paid $60 version of the Tunerstudio software if you want to be able to drive around and let it autotune via a wideband sensor. Definitely budget this in as the software is well worth it. If you can find someone else's similar setup to start with it will make it really really easy (they don't advise you do this but its a lifesaver to test stuff if things don't work as planned or to see what other people set in places). I haven't been able to do that as my setup is unique and i'm still having trouble with some of the fiddly settings.
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Dec 5, 2017 15:53
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ExplodingSims posted:So what did you buy exactly? Just a kit like this one? Lots of replies telling you what you actually needed to know, but to answer your question to me - I bought mine directly from Bowling and Grippo, when they first came out. I've had it almost 2 decades now, I think. edit: Wikipedia says the MS I came out in 2001, and the MS II in 2005. The one I actually have is an MS I v2.2, which would be between those two. So closer to 15 years. The one I have would actually be aces on your TBI SBC. It can be stretched to do ignition control with MSnS, AKA MegaSquirt 'n' Spark-Extra, which also ads a bunch of other features to the MS1 that were incorporated into the MS2 and beyond. Darchangel fucked around with this message at 16:10 on Dec 5, 2017 |
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Dec 5, 2017 16:06
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The Wikipedia article is a good overview: https://en.wikipedia.org/wiki/MegaSquirt
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Dec 5, 2017 16:11
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isn't the stock ECU designed to do exactly what you want and available for $20 at every junkyard in America?
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Dec 5, 2017 17:49
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Its the one with red and blue connectors? Even if your doing MS you probably want to get it running correctly on the stock ECU first. You will have a much easier time knowing everything worked correctly rather than trying to diagnose issues while tuning. I haven’t done MS but I have done HPtuners. With that things like slightly lazy o2 sensors and cold air intakes that hosed with the MAF were enough to deal with. You don’t need more unknowns.
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Dec 5, 2017 19:53
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rdb posted:Its the one with red and blue connectors? Even if your doing MS you probably want to get it running correctly on the stock ECU first. You will have a much easier time knowing everything worked correctly rather than trying to diagnose issues while tuning. Yeah, at least we know the wiring is good though
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Dec 5, 2017 20:00
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rdb posted:Its the one with red and blue connectors? Even if your doing MS you probably want to get it running correctly on the stock ECU first. You will have a much easier time knowing everything worked correctly rather than trying to diagnose issues while tuning. That is the plan, for now anyways. I have to pull the whole harness and check over it/ redo some runs, so at least by the end of that I'll have everthing labeled and tagged, so I'll have some idea of what goes to what. But there's also the possibility that the ECU is fried too, so replacing it anyways may be in order.
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Dec 5, 2017 20:06
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Elephanthead posted:isn't the stock ECU designed to do exactly what you want and available for $20 at every junkyard in America? That ECU is I guess known to be fragile and easily fried so the decision is between another possibly bad ECU or going with MS which would be less likely to be DOA but would involve some tuning.
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Dec 5, 2017 20:15
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Cat Hatter posted:That ECU is I guess known to be fragile and easily fried so the decision is between another possibly bad ECU or going with MS which would be less likely to be DOA but would involve some tuning. It's pretty much this. Gonna pull the harness, and redo it, and try the original ECU one more time, then maybe replace it depending on what happens. Just kinda kicking the Megasquirt thing around for a future thing. I'm trying not to spend a ton on an engine that won't be the final product. But if the ECU is a fragile as people claim it is, keeping in a non-water tight environment like the truck cab might not be the best idea. Speaking of the harness, I must how much I love eBay for being able to produce just any document you might need from any time period:  This thing makes this stuff so much easier. Also, I'm glad somebody around here is selling some quality tools! 
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Dec 5, 2017 23:27
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https://www.ebay.com/itm/TBI-Wiring...lUAAOSwIwhWS5er This looked interesting I have no idea of the quality. Someday I will TBI swap a straight 6 67 chevy C10.
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Dec 6, 2017 01:11
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ExplodingSims posted:Also, I'm glad somebody around here is selling some quality tools! It's not just good, it's good enough!
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Dec 6, 2017 09:21
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ExplodingSims posted:
It's part of the Good, Better, Best series. The manufacturer sends them to parts stores with the stickers preinstalled. Basically, you bought the cheapest one.
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Dec 6, 2017 14:25
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I want one that says “meh, it’ll do”.
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Dec 6, 2017 19:37
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Darchangel posted:I want one that says “meh, it’ll do”.  "Sorry, it's all I got"
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Dec 6, 2017 19:44
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8-17mm nine piece metric box end wrench set
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Dec 7, 2017 04:54
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DICK DICER posted:8-17mm nine piece metric box end wrench set Missing the 10mm?
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Dec 7, 2017 10:13
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ausgezeichnet posted:Missing the 10mm? 
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Dec 7, 2017 17:15
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The set of metric wrenches I mail-ordered from Harbor Freight ~25 years ago didn't include a 12mm.
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Dec 7, 2017 18:21
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I just marathoned this thread. Holy poo poo. Now to get caught up on 14’s Bike Safari...
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Dec 7, 2017 18:26
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Big Taint posted:I just marathoned this thread. Holy poo poo. I hope you also did the supplimental reading of Requiem for a Jeep. I should really link that in the OP.
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Dec 7, 2017 18:29
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ExplodingSims posted:I hope you also did the supplimental reading of Requiem for a Jeep. rear end TO rear end
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Dec 7, 2017 19:03
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Dec 7, 2017 19:04
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ExplodingSims posted:I hope you also did the supplimental reading of Requiem for a Jeep. Requiem for a Jeep. The Valentine odyssey begins here.
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Dec 7, 2017 19:14
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Dec 7, 2017 21:14
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| # ? May 11, 2024 12:05 |
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The recovery and Rehabilitation of Dave is perhaps the greatest achievement of the thread. The discovery of Panther piss is the next best thing.
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Dec 7, 2017 21:37
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