"StudyStudyStudy" (jesterjin)
05/11/2015 at 16:45 • Filed to: project car, 240z
5
5|
"StudyStudyStudy" (jesterjin)
05/11/2015 at 16:45 • Filed to: project car, 240z | 5
| 5 |
Well at this point, the garage owner was planning on moving, and I had no intention to move with him, so I packed up and headed for home. Less then 3 miles away the car came to a stutter as my relay box seemed to fail. I swapped some relays around and managed to limp it home. I only broke down twice on the freeway :), but I made it finally back to the storage unit. I had taken the main power from the power that was feeding the fuel pump relay. Turns out I had taken the output power rather then the input power meaning everything was limited to 40 amps that the relay could supply. Not very smart.
With an open exhaust it sounded pretty gnarly, and with the childishly loud blow off valve it was quite a hoot to rev. I had to throw in the towel when the car refused to rev past 4k and called a local tuner. If anyone needs megasquirt assistance I highly suggest Mario from the Dubshop, really cool guys (and the dub is from VW not 24” rims dub).
I had gone from
To this
To try and get a better signal. It turns out I was ever so close but no cigar as the fix ended up being widening the hole and moving it ever so slightly forward. Mario took a look and figured it out and looked over my settings. For the first time I could really hear the motor sing!
The down pipe supplied with the car was touching the body with terrible crush bends. I pulled it off and started fabricating from the dump pipe flange.
I finished up most of the rest of the exhaust, but ran out of time at a friend’s drive way so I gave it to the exhaust shop to add the turn down/tip, v-brand, and to check the clearances. I think it turned out real nice.
A little bit of titanium wrap to stave off the heat, and yes I’ll quick stalling...
Not bad eh?
I decided to get rid of the super finicky turn signal and added some switches and indicators to my steering wheel. I used a heavy duty coiled cable instead of having to work out a clock spring arrangement.
And as many of my gauges would not work, I ordered the bluetooth sender and setup the poorman’s dash pack. 80$ tablet and we have a pretty comprehensive display.
I still haven’t quite figured out how to mount it. I think I may just cut a box section into the dash and permanently install it.
I had been driving it around on sound and the display showed that what I thought was an ear piercing wail and around redline, turns out it was only 4k rpm. Everyone I have had drive the car seems to think the same as they shift right around 4500rpm even with my insistance that they can push it. I can’t imagine it at 6 or 6.5k I imagine life changing.
The boost, oh my the boost, it is fantastic, I can’t believe that this is legal, and with the inline six it just feels like the power is delivered butter smooth. With the weight around probably 2200 or so, the car absolutely flies. Rolling into the power in 5th makes cars disappear real fast, and romping through the gears can get someone in trouble real easy. The first time I stomped on it, the ground was a little moist and the car just started to slip, shifted up, rolled into it again same thing, the rear stepped out a bit, shifted up again, and yet again shifting sideways. With traction the power came on just like a wave and as it ramps up and you panic you shift and are greeted with a loud Pshhhh, then it starts all over again.
It is a bit alarming when the power comes on because your foot doesn’t really move, but suddenly the car just kind of picks up and goes. With the boost controller and mods I should be sitting pretty comfortable around 300hp, and 300+torque and I could add another 100 pretty easy with an upgraded turbo and bigger injectors, but I can’t imagine what it is like with more.
Now it just comes down to fixing some of the little issues.
Lessons learned:
Double check everything before setting off and using public free ways.
People are merciless on the road, even with hazards etc so much honking etc.
Sometimes it really does take another set of eyes.
Sometimes it really takes another hand, having a professional finish up your vision can make it turn out real nice.
Megasquirt is really versatile.
Costs:
80 - used nexus 7 tablet
80 - blue tooth sender
50 - misc cables
50 - misc electrical hardware for turn signal mod (diodes, switches, buttons, wires etc)
50 - titanium wrap
500 -finish up exhaust, new trans mount, misc work
125 - diagnosis, travel expense, base tune
Subtotal:935
Total spent: 17120
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MonkeePuzzle
> StudyStudyStudy
05/11/2015 at 16:49 |
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what blutooth sender and app are you using? great solution.
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StudyStudyStudy
> MonkeePuzzle
05/11/2015 at 17:16 |
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Shadow dash from tuner studio is the app
Bluetooth sender can also be found on the site, it is a DB9 bluetooth serial adapter R232, you can even tune over the same signal if you have a laptop. Megasquirt actually has their own app (MSDroid) that lets you adjust settings and such using a tablet or phone. I haven’t been able to get it to work quite well yet.
Baeromez
> StudyStudyStudy
05/11/2015 at 18:24 |
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Love the dash setup. Is it twitchy or does the needle move smoothly? Is there any lag, and how accurate is that kind of setup supposed to be?
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StudyStudyStudy
> Baeromez
05/11/2015 at 18:37 |
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Yea it really is pretty neat.
It’s a digital display, so if you move faster then the refresh rate it will jump, but with that considered it is pretty smooth.
It displays what the ECU sees so it is as accurate as what is running the engine.
Lag, not sure, it reads changes pretty quickly, but this is also an older tablet with an older processor and such, so there may be some. I have it in my sun visor at the moment so I only get quick glimpses of it while I’m driving.
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Baeromez
> StudyStudyStudy
05/11/2015 at 19:08 |
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Cool, I’ve gotta remember that one.