mobythevan
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Posts posted by mobythevan
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Is the HEI module grounded well? One of the bolt holes should have a metal ring around it that allows the module to be grounded through the bolt.
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I seem to recall HEI units getting hot when spark inverted box was set the wrong way?
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I only know that one because we were going to run 4 four post ford coil packs to do wasted spark on the new hemi which has 16 plugs.
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The Talon is all wheel drive and mine has the posi rear. The guys say at this power level it is capable of 1.8 60 foot times, but who knows if I can get it there. You can ride passengers until you go faster than 14 at that track.
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After many years I finally made it to the track. I only have the Talon running right now so I took it. I went July 21st and had my friend drive the car, he turned in a best time of 15.58 with 2.6 60 foot times, horrible launches, but we didn't expect much first time out.
Went back last Friday night and I drove the car after fixing a few things. I still wasn't able to launch and only got a 60 foot of 2.3 and ran 14.81 at 97mph(running next to my little brother, that was cool because it was his first time at the track). I had my wife riding with me on that run(so that was only like 110 extra pounds
). I am getting better at launching the car so we'll see next time. The car is still completely stock trim, with AC, etc. I did pull out the spare tire since that was easy. I felt bad for this other guy because I am running 16psi and he had a talon just like mine with completely stripped out interior, running race gas and 20psi and he has only turned a best of 14.1?? Bad tuning/driving I guess. I believe with a little practice and a new clutch I can pull low 14's at the same psi. The higher altitude also seemed to kill a lot of cars.It was the most fun I have had in years to actually get out and run the car. This was down in Pueblo at PMI.
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MSnS_Extra will support at least 4 outputs to drive ignition circuits. The newest version(029q) may even support 6 for COP on the L28, but it at least supports 4, so you'll be OK in that respect.
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It still seems to be running OK with the req fuel adjustment I had to make... is it possible that the car will still run with fried injectors with changes like that? Or is that probably something unrelated?
I would go ahead and set it up correctly like metro shows, then put required fuel back to where it should be. See if it will idle and then listen to all 6 injectors with a stethoscope or something else, and see if they all sound like they are working.
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I heard it was an RB swap, bout time they put those ugly mopars to a good use
just kidding, lighten up. There has to be change or the sport becomes boring, drifting looks like fun to me.
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I was thinking about setting up a voltage multiplier
Use a transformer to change 12 volts to 24 volts.
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Wow, this thread is a museum of banned users.
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That hudson is a cool looking car
veritech,
here is the pontiac straight 8, it weighs as much as a z car, I took this picture because the engine is just huge. SBC head for reference.
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It sold before I could look at it.
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CAS connects to the relay board at the terminal input labeled "TACH"
If it is an optical type unit(decoder wheel) you will need a pullup resistor like the L28ET instructions.
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Cool, I figured as much. I think I will go look at the celica.
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Also I found you can run alot more timing under vacuum then you are running. The next chance I get i'll post my timing map.
that map is from my Talon, just FYI
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88 celica turbo alltrac and 87 supra turbo
For daily drivers are these good cars that are easily to pump up in boost and have fun with?
Any big issues with either one?
thanks
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I guess this is why good tuners are never out of work.
I hear you, it seems the more you know, the more there is to know.
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So the general rule is to pull 1 degree timing for each psi boost.
At sea level I might have my timing table set up then so at 100kpa timing is full advanced at say 32 degrees. Then at approx 107kpa I would pull a degree and have 31. I think 7kpa ~ 1psi.
Now at my altitude atmospheric pressure is 77kpa, instead of 100kpa at sea level. So should I set 32 degrees at 77kpa and 31 degrees at 84 kpa, or should I leave timing at 32 degrees up to 100kpa and the set to 31 at 107kpa just like if I was at sea level?
Following through in both cases I end up with timing of:
sea level case : 107kpa -- 31 degrees
high altitude case: 107kpa -~ 27 degrees
So I am talking a 4 degree difference based on the outcome of this argument.
And of course the timing continues to be pulled all the way up be 1 degree/psi
Initially it seems I would pull timing above 77kpa, but effectively cylinder pressure is low because of the low atmospheric pressure. This is with a nice FMIC so is heating going to be a part of the argument?
Here is an example table that uses 34 degrees as full advance under no boost. It may not pull exactly 1degree/psi but illustrates that I started pulling after 100kpa, instead of 77kpa.
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Moby, why do you want to run MSII?
I am in the area now where I really need high resolution code and all of the extra functions. There is a code like that for MSI, but it isn't widely supported from what I can tell. So I am hoping in near future there will be a code for MSII that supports both. If not I will have to keep dealing with the big injector problem on a couple of my projects.
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I'll be able to post a wideband tuned msq/pics for 29q2 which uses the latest version of Megatune and MSnS-extra.
That would be great to do another sticky with 029q settings or change title of this one to include both.
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I was on the understanding that if you used a v2.2 board you could only run MSI. But if you use a v3 board you can run MSI or you can add the processor daughtercard and run MSII on the same board. Is that correct?
I am getting ready to order a v3 board for another project and it would be nice if an MSII upgrade path is available without buying a new board in the future.
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2800cc
6 injectors
stock injector size(can't remember, are they 260cc)
AFR 14.7
Anyway that works out to 12 on required fuel
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something else you might consider since you would like to go speed density, might as well be able to program fuel and spark easily(the next logical step is to install 2 stock 280zxt turbos, that is what we are doing):
http://forums.hybridz.org/showthread.php?t=101901
We installed TPI on two different 350's now with megasquirt and they both kick butt down low. One is in a 37 rod and the other in a 76 stepside truck. Both installs were retro-fits and required milling out the center four bolt holes because it was too hard at the time to find the earlier TPI manifolds. It was relatively easy to do the bolt hole mod.
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Thanks to Metro for taking these screenshots of his setup. The biggest difference with Metro's setup versus the install guide is the use of the 83zxt distributor in the install guide. His car is setup as follows:
v3 MS board
Stock injectors
Aeromotive RRFPR, just 1:1 ratio like stock
Stock Fuel Pump, at about 40psi
240sx TB
1g DSM BOV
Grainger style MBC @ 10psi
Ignition:
'76 VR distributor with mechanical advance locked, set as far counterclockwise as possible
GM 4pin HEI running out of D14 (LED 17) and not FIDLE
I will try again to attach the zip file with the msq, let me know if this doesn't work.
). I am getting better at launching the car so we'll see next time. The car is still completely stock trim, with AC, etc. I did pull out the spare tire since that was easy. I felt bad for this other guy because I am running 16psi and he had a talon just like mine with completely stripped out interior, running race gas and 20psi and he has only turned a best of 14.1?? Bad tuning/driving I guess. I believe with a little practice and a new clutch I can pull low 14's at the same psi. The higher altitude also seemed to kill a lot of cars.
Car won't rev past 2k? Hot HEI and Coil!
in MegaSquirt
Posted
Yes, it does have to have heat compound and some way of cooling, heat sink, fan, etc. The GM HEI distributor provides a good heat sink and the bottom of the rotor acts as a cooling fan. Without the heat sink compound the modules will overheat in the GM distributor, I found out the hard way.