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Messages - digitalsolo

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Build Threads / Re: Blake's 1965 Mustang Project
« on: June 18, 2020, 05:31:47 PM »
It would NOT be easy to DIY.    The closest I've seen to a feasible DIY is this:   

Electronics / Re: Getting started with CANBUS?
« on: June 17, 2020, 11:38:56 PM »
Oh boy, haha.

So you can do the CAN message with an Arduino pretty easy.    USB car charger for power and a few wires to a CAN transceiver.   I have code written I can point you to that Iíve used for AndrewB to setup CAN messages to a Prius electronic power steering, should work with some tweaking.

I have a couple of those CAN MVECs, they are a pain in the ass.    I had planned to use them and ended up with an ECUMaster PDU, I got tired of fighting with the Eaton stuff, their support sucked.

Iím happy to help wherever I can, no pun intended.   Iíve got a couple hundred hours poking at CANbus stuff.

Build Threads / Re: 1979 SA RX-7 LS Turbo Build (8.93 @ 153)
« on: June 17, 2020, 01:42:00 PM »
Hah!   Thatís a cool find!

Build Threads / Re: Blake's 1965 Mustang Project
« on: June 16, 2020, 09:11:07 AM »
Went ahead and ordered the Deatschwerks brushless pump.   It seems like a nice piece and I was intrigued when they discussed it at PRI last year.    At 20V, which they said it can do 100% of the time if you're PWM for the control, it flows 620 LPH.   Hopefully I'll put that in Saturday or Sunday.

Does anyone have any opinions on using fuel pulsation dampers?   I'm still looking at the Radium units and they have a nice sales pitch and it's logically valid, but I've never used an FPD for anything before, so.     Those big 1050x injectors can certainly hammer some fuel through though, so it seems like it might not be a bad idea.    Curious what the knowledge base around here thinks.

Build Threads / Re: Blake's 1965 Mustang Project
« on: June 15, 2020, 10:00:33 AM »
Spent another hour or so last night and hooked up defog and interior ducting.    It's just kinda zip tied under the dash for now;  I couldn't find any great way to make it push "forward" from the dash that didn't look tacked on, so I feel that just dumping the hot/cold air into the footwell is fine and it's stealthier anyway.

Still need to sort out knock sensors.   I really don't understand why those aren't working.    Might be time to hit up Haltech for some insight.

New Members/Introductions / Re: New here
« on: June 14, 2020, 09:20:18 PM »

Build Threads / Re: Blake's 1965 Mustang Project
« on: June 14, 2020, 02:52:06 PM »
The S1 is super cool.    I really like it.   I don't know that it makes me any faster, but I definitely can't miss a shift unless I do something stupid.   Honestly the point was FUN though, and fun it is.

Also, I fixed the VSS today and dialed it in.    Another one off the list.   I did a few other small things as well:

Trimmed my fuel rail shims 0.15" in the mill to snug up the passenger side.
Cleaned out some oil from the intercooler from when I forgot to turn on my scavenge pump (whoops)
Shortened two of the bolts for the strut tower bar that were too long.
Found one of the strut tower bar bolts that I'd lost.
Cleaned up under the hood.

I'm in STL now and then, I'd be glad to say hey, but I'll just be in my BMW daily driver as my Mustang isn't super fun for 7 hour drives down there from my place.

I use little breather filters from Autozone in the "performance" section.

Build Threads / Re: 1979 SA RX-7 LS Turbo Build (8.93 @ 153)
« on: June 14, 2020, 12:43:55 AM »
Man, that's hauling!

Build Threads / Re: Blake's 1965 Mustang Project
« on: June 14, 2020, 12:39:51 AM »
Probably so, but at 120 dollars, the MSD is totally worth it I'd say.

I took the car out for a bit today, even took the family out to a car show, which was fun!

I have been chasing a problem with the #2 (driver side) intake cam being loopy on the VVT.   It was bouncing all over the place when commanded to move at low load/low RPM like rolling through my subdivision at 1800-2200 RPM (20-25 MPH), which looks like a PID overshoot to me.   Very annoying as it surges and the AFRs get pissy (as they well should).

Anyway, tonight I added about 10% to the low end duty cycle base for the VVT on that cam (it's configurable by cam) and it's cleaned it up dramatically.   I'll keep an eye on it, but logs show it tracking the passenger cam (and tracking commanded pretty well).

AFRs are pretty clean too.    Playing with the idle/low throttle fueling a little (it's a touch rich) and transient tip-in has a baby lean spike, but overall fueling is pretty acceptable all the way up around 5 PSI of boost and very close in mid-range.     Car is very stable at 80 MPH on the highway, though I really need to get a VSS based electric power steering assist setup in it, as I don't like the power steering at >55 MPH at all, but it's great at low speed, and turning the knob all the time is annoying.

I need to put a few more degrees of timing in at low load/RPM I think as it's a little lazy down low.   I have spun it up to 6000 RPM now (redline is 7800) and it feels good.   Nothing too exciting thus far, which is the idea.   I want another 100-200 miles of tuning and logging and then I'll move the car over to E85 and start dialing in the flex adjust tables and turn the boost up a little more.     Temps are very stable, running at 185-195*, and everything else is working great.

Thus far I'm a big fan of the S1 Sequential shifter and a giant fan of the Haltech ECU and dash.   

Next week I want to fix my VSS and maybe start figuring out a VR sensor pickup for front wheel speed, then get cruise control, A/C and traction control working!

General Tech / Re: Looking for suggestions on how to sell my LS RX-7
« on: June 12, 2020, 06:14:58 PM »
I'm booked up on project cars right now, unfortunately.

That said, I'd probably buy it for 15k...

I ran the OEM vent, yes.    The loop was just on top of the tank to a little filter.

My current car has a racing fuel cell and runs a basic vent tube out of it (-6 AN) to a bulkhead to under the trunk with a filter on it.   So it makes an upside down "U" shape.   Car is on '93 octane and thus far any gasoline smell is very minimal.    It DOES puke fuel out of that occasionally when I fill the tank though.

Build Threads / Re: Blake's 1965 Mustang Project
« on: June 12, 2020, 06:07:03 PM »
I snagged an MSD 2351 for a steal on eBay.   It's a fuel pump booster like a Kenne Bell Boost A Pump, but ya know, from MSD.      They retail for about 450-500, and I snagged one for 120 shipped (!).

Looking at a Deatschwerks 440 lph brushless.   I had a long discussion with them at PRI last year and they said if you run it at 20-22V it'll flow enough for ~1000 RWHP on e85 and if you PWM it, you can feed it 20V or more constantly.   I'm probably going to set it at 18V and PWM it, which should more than feed my setup and have plenty of headroom, as well as keeping the fuel cooler and allowing me to run a single pump (well, a single pressure pump + my lift pump that sends to the surge tank).   It's a tiny little guy, too.

I haven't ordered that pump yet, but I'll snag it sometime soon.   Changing pumps isn't that fun as it's like 50 bolts to pull the fuel system apart.   Anyway, looking at that and maybe a Radium regulator with integrated pulse damper, or possibly doing the Radium rails with integrated dampers.    I've done some reading and it seems like the pulse dampers are actually pretty effective especially with big honkin' injectors.

Oh, and I was curious on the MSD 2351, and you CAN set it to up to 22V all the time, or feed it vacuum reference and just do it at a set MAP reading.   I just want the voltage all the time, so I'm programming it for 18V flat, it's USB programmable.

New Members/Introductions / Re: New with a whole lot to learn.
« on: June 10, 2020, 10:01:15 PM »
I'm a pretty competent (well, vaguely competent) welder, and I won't weld a cage.

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