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> Another MS conversion, Progress, at last.
JimN73
post Sep 5 2012, 09:37 PM
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I've been talking to McMark for some time about the MS/ignition upgrade. I decided to to take the plunge a few weeks ago and asked Mark to put it on his schedule.

Jeff (JSConst) had bought a kit from Mark and decided not to use it, so I bought it from him. All of the pieces are together and Mark has time starting on Sunday.

Unfortunately, my time is limited so I may not participate much. I will add updates as I learn of them, or Mark may do that if he has the time.
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ConeDodger
post Sep 5 2012, 09:52 PM
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Wow! I can't believe Jeff gave that up! (IMG:style_emoticons/default/blink.gif)
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JimN73
post Sep 5 2012, 10:04 PM
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So am I. But he has a lot of projects and I think he wants to get the white car running quickly.

I told him that I hoped he wouldn't regret this decision in 6 months.
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JStroud
post Sep 5 2012, 11:30 PM
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There were a few factors that prompted my desicion, my running motor that I just took out of the white car, needs to be rebuilt, it's starting to drop a valve and has other issues. So my plan to finish the yellow car and put that motor in it to sell won't work now. So the new 2056 will ultimately go in the yellow car, and if I end up selling it not sure if it would bring the extra $ having the MS system over a good working Djet. And I'd still be short an engine for the white car. And no offense to anyone here, but I'm not rebuilding a T4 again... So I decided the white car is getting a Suby engine, it's something I've already talked to McMark about awhile ago, now I'm doing it a little sooner, you ready Mark, I'm already looking for a donor car (IMG:style_emoticons/default/biggrin.gif)

Plus Jims car has been running bad lately I think he needs it more than mine right now (IMG:style_emoticons/default/beer.gif)

And besides, if I decide to keep the yellow car, I can always buy another system for it in the future...right (IMG:style_emoticons/default/confused24.gif)

Can't wait to see your car on the road again Jim, mine should be going again by this weekend (IMG:style_emoticons/default/driving.gif)

Jeff
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JimN73
post Sep 6 2012, 09:24 AM
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QUOTE(jsconst @ Sep 5 2012, 10:30 PM) *

There were a few factors that prompted my desicion, my running motor that I just took out of the white car, needs to be rebuilt, it's starting to drop a valve and has other issues. So my plan to finish the yellow car and put that motor in it to sell won't work now. So the new 2056 will ultimately go in the yellow car, and if I end up selling it not sure if it would bring the extra $ having the MS system over a good working Djet. And I'd still be short an engine for the white car. And no offense to anyone here, but I'm not rebuilding a T4 again... So I decided the white car is getting a Suby engine, it's something I've already talked to McMark about awhile ago, now I'm doing it a little sooner, you ready Mark, I'm already looking for a donor car (IMG:style_emoticons/default/biggrin.gif)

Plus Jims car has been running bad lately I think he needs it more than mine right now (IMG:style_emoticons/default/beer.gif)

And besides, if I decide to keep the yellow car, I can always buy another system for it in the future...right (IMG:style_emoticons/default/confused24.gif)

Can't wait to see your car on the road again Jim, mine should be going again by this weekend (IMG:style_emoticons/default/driving.gif)

Jeff


be good to see it on the road again.
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JimN73
post Sep 10 2012, 10:15 AM
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Well, I got the car to McMark's yesterday with Dirk Wright at my side. While it's there, we (Mark) is installing a new oil pump, fixing an oil leak, changing springs, lubing the starter motor shaft, replacing seals and bushings and adjusting valves.

Yesterday, he got most of the miscellaneous stuff done, stripped the carbs and distributor and started installing the EFI/ignition stuff.

We'll see what happens next.
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JStroud
post Sep 10 2012, 04:58 PM
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Nice, that things going to drive like a whole new car...mcmajic.

Glad to see you're gettnner done Jim.....Mark, whoever (IMG:style_emoticons/default/biggrin.gif)


Jeff
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JimN73
post Sep 12 2012, 06:49 PM
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Here's the e-mail I got from Mark this morning.

Finished up the wiring changes this morning, installed the software for the USB adapter (it was in the mailbox), and turned the key. The MS woke up and everything looks like it's reading. We're hooking up the fuel system now and then we'll see if it starts. There may still be some involved troubleshooting, but we won't know about that until later. So we're making progress! I'll keep you posted.

My response: Way cool

As he says, I'll keep you posted

I've been running 140 lb rear springs with stock torsion bars and a stock front sway bar. Front has been lowered more than the rear. The car is really well balanced with this setup, turns in really well and doesn't plow unless I really overdo it.

I'm switching to 150 lb springs with threaded perches which will let us lower the car more. going to be interesting to find out if the heavier rear springs overbalance the front and cause problems at AX
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JimN73
post Sep 13 2012, 06:44 PM
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Mark has the car running. Not well at first, fixing a couple of exhaust leaks and a software upgrade helped. It looks like the ignition switch is failing, so a new one before we go any further.
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ConeDodger
post Sep 13 2012, 06:47 PM
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Very cool!
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Mike Bellis
post Sep 13 2012, 06:52 PM
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Did you tell him it has to be done before the 914 Breakfast on Sunday? (IMG:style_emoticons/default/confused24.gif)
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JimN73
post Sep 13 2012, 07:09 PM
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I was hoping to get it done this week so I could go to the AX on Saturday and the breakfast on Sunday. Mark's weekend is Friday & Saturday, so I have to wait for next time on both counts.

I'd rather take an extra day or so and get it done right. He's being very thorough and I'm sure that I'll have a much better car when it's done.
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JimN73
post Sep 26 2012, 07:50 PM
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The fuel pump started puking all over the place the other day. May be one of the reasons that the car is hard to start.

Anyway, got a rebuilt and it doesn't work. I have disconnected the delivery hose from the pump to the engine (dumping into a can) to see if I'm getting any gas. None.

I've turned the engine over for a couple of minutes. Nothing.

The guy that did the rebuild says that I have to prime the pump. I've never heard of having to prime an electric pump. Any ideas?????

thanks,
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Mike Bellis
post Sep 26 2012, 09:16 PM
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I've had to prime plenty of electric pumps for work, on diesel generators. Never on a car fuel pump. Your pump (front or rear) is lower than the tank. It should self prime. If it doesn't the pump is bad. Buy a new on not a rebuild.

I run this one on my EFI. works great!

http://www.summitracing.com/parts/SUM-G3138/
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Jeffs9146
post Sep 26 2012, 09:46 PM
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I have a couple of very lightly used newer 2.0L Injection fuel pumps if you need one!
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JimN73
post Sep 26 2012, 10:08 PM
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Thanks, Jeff. I got this one at Parts Heaven, they should have a newly rebuilt pump tomorrow.

Jim
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ConeDodger
post Sep 26 2012, 11:15 PM
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I saw it running at The OC... Did you take it home?
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JimN73
post Sep 27 2012, 08:55 AM
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I did bring it home. Mark wanted to take a few days off, so I brought itt home to do some tuning. Murphy came with me so I haven't been able to drive it much.
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JimN73
post Oct 19 2012, 12:06 PM
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Update: This has not beeen and is still not a painless issue. So far, we've dealt with loose connections, two ignition switches and two fuel pumps.

I had the car and couldn't get the after start enrichment to work well so I took it back to Mark to sort out the hardware/software issues. Latest from him is that an AAR may be needed to make it work right.

Maybe he'll chime in with more details.

Must say the performance, once the car starts and warms up, is what I expected to get when I rebuilt the motor almost two years ago. Getting on the freeway is no problem anymore.
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JimN73
post Nov 2 2012, 01:04 PM
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This has not turned out as well as either Mark or I had hoped. He had the car for more than a week had found problems that he could not solve.

At the end of the day, there are two continuing problems. First, it is hard to start, this can be minimized if I open the throttle a bit. Second, the engine bucks at a little less than 2,000 rpm. Mark feels that the cam that have has too much overlap for Microsquirt to handle.

I have Aircooled Technology cam #9530 cam (similar to WebCam grind #494), valve lift .465 and duration of 288/298.

The rest of the engine: 2056, lightened flywheel, 9.5:1 compression, Aircooled Technology heads.

Here is the tune that we're using and datalogs of the start and bucking. If anyone has seen this before and has found a solution, I think both Mark and I would be very interested.

Crap, uploading these file extensions is not permitted. Others have done it, how???

thanks.
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