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Chain fence eating turbo
 
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Quote:
Originally Posted by Norm K View Post
I'm not sure why you'd go anything but distributorless.

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Words never said better!!
Old 12-18-2017, 03:43 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #41 (permalink)
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Yes, MS3 will run COP directly. the original poster has a MS1 V3, which won't run spark at all. The Microsquirt will run a 4 cylinder COP, but not a 6 cylinder without some modifications. It would STILL be a wasted spark set up. EDIS is just much simpler. In order to go sequential COP, you would need a Cam position sensor, which complicates things just a little bit more. I guess it is how technical you want to get with it. With my setup EDIS was stone cold reliable, and i was also able to concoct a wasted spark COP system.

Quote:
Originally Posted by flightlead404 View Post
I'm still trying to figure out why the EDIS modules?

Is it something about COP versus CNP? With a 3-wire COP and providing the +12v separately, just logic from the MS3 can't you use COP directly?

I've been reading lots about using my microsquirt v3 for ignition and its pretty confusing, but it seems I can run wasted spark CNP directly at least, without EDIS.
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1979 911SC widebody conversion. 3.1 engine, 3.2 liter heads, carrera intake, Microsquirt V3 ECU, K27 7200 High flow turbo, Tial F41 wastegate, Ford EDIS. .7 bar. 402hp 360tq
Old 12-18-2017, 04:06 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #42 (permalink)
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Thanks for the feedback guys. I have more questions lol.

I've recently lost a bid on Ebay for the Carrera intake manifold I was planning to run. I've hacked up the stock airbox so It's basically a throttle body with a plastic plenum under it. My concern is that is has one of those "pop-off" valves on it for backfires. Obviously, I can't leave this if I'm running boost.

My plan was to just Jb-Weld it shut. Sounds ghetto, but am I wrong to assume it would hold 10psi? Would the plastic plenum even hold 10psi?

I've also decided to tune for fuel only and run a dizzy for first start. Tackling spark/fuel at the same time seems like it would complicate things a bit. Nobody has come forward with a base fuel/spark tune to copy so it will be easiest for me to handle one at a time.
Old 12-19-2017, 07:30 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #43 (permalink)
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Hill3312 -- we make and sell that heavy duty stainless turbo hanger bracket, available for both early (1976-83) and late (1984-89) applications.
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Old 12-19-2017, 11:49 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #44 (permalink)
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Quote:
Originally Posted by scottrx7tt View Post
Yes, MS3 will run COP directly. the original poster has a MS1 V3, which won't run spark at all. The Microsquirt will run a 4 cylinder COP, but not a 6 cylinder without some modifications. It would STILL be a wasted spark set up. EDIS is just much simpler. In order to go sequential COP, you would need a Cam position sensor, which complicates things just a little bit more. I guess it is how technical you want to get with it. With my setup EDIS was stone cold reliable, and i was also able to concoct a wasted spark COP system.
What's the drawback with a wasted spark configuration? As long as the non-wasted spark happens at the correct time.

Are there issues with coil charge rates, dwell, or coils heating up, or something I'm missing that makes a wasted spark setup so much less desirable? Or is it just the elegance of sequential that is so seductive?

AFAICT Microsquirt can run 6 cyl wasted spark setup with CNP. Not sure about COP, but I'm having a hard time figuring out why 3wire COP is so different than a CNP setup.
Old 12-19-2017, 12:14 PM
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Chain fence eating turbo
 
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With EDIS and wasted, IIRC, at 7k RPM, you are about out of dwell time. The coil pack is nearing 100% duty cycle.
Old 12-19-2017, 12:48 PM
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Quote:
Originally Posted by flightlead404 View Post
What's the drawback with a wasted spark configuration? As long as the non-wasted spark happens at the correct time.

Are there issues with coil charge rates, dwell, or coils heating up, or something I'm missing that makes a wasted spark setup so much less desirable? Or is it just the elegance of sequential that is so seductive?

AFAICT Microsquirt can run 6 cyl wasted spark setup with CNP. Not sure about COP, but I'm having a hard time figuring out why 3wire COP is so different than a CNP setup.
I BELIEVE you would still need an ignition module to make it work something like the Bosch 0 227 100 124, or the Quad Spark box that is available from Diyautotune. The biggest negative with EDIS is you do not have control of dwell, and you have a preset rev limiter of 6750, or somewhere in that area. My car would probably have been good up to over 7k, but 6750 is close enough.
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1979 911SC widebody conversion. 3.1 engine, 3.2 liter heads, carrera intake, Microsquirt V3 ECU, K27 7200 High flow turbo, Tial F41 wastegate, Ford EDIS. .7 bar. 402hp 360tq
Old 12-19-2017, 01:37 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #47 (permalink)
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Any feedback on the stock SC intake boys?
Old 12-19-2017, 02:58 PM
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Quote:
Originally Posted by Hill3312 View Post
Any feedback on the stock SC intake boys?
Well the BAE SC Turbo kits used the factory airbox, not sure how much boost they ran with those kits tho. I suspect the plastic intake will be fine with the pop off valve port closed off.

Edit:

Here is thread where a guy mentions running the BAE kit for 20+ years at 9-11psi without issue:

911SC Turbo
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Last edited by '76 911S 3.0; 12-19-2017 at 04:16 PM..
Old 12-19-2017, 04:06 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #49 (permalink)
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Quote:
Originally Posted by '76 911S 3.0 View Post

Here is thread where a guy mentions running the BAE kit for 20+ years at 9-11psi without issue:

911SC Turbo
That is an excellent thread. Answered a lot of my questions!

Update:

Test fit the motor today to make sure the turbo fits and to map out intercooler piping. Everything looks good! The engine is going back on the stand tomorrow to be completed, then back in the car she goes!

Old 12-19-2017, 04:41 PM
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The pop valve once jb welded will work fine.
If I were you I’d sel more shades and buy a Carrera manifold.
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Old 12-19-2017, 08:40 PM
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Originally Posted by quattrorunner View Post
The pop valve once jb welded will work fine.
If I were you I’d sel more shades and buy a Carrera manifold.
Haha, it's just difficult to find them. There's still one on Ebay, but it's 2300... I can wait.
Old 12-19-2017, 09:03 PM
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Check around. Recyclers May have one. I wish you wouldn’t have hacked up that sc intake. Even 8 years ago it made sense but these days porsche parts are valuable. You could have offset the cost better.
Also maybe do a post here wtb add in the classifieds. I know they’re not cheep but you should be able to still get one for 800-1200 and it’s worth it.
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Old 12-19-2017, 09:15 PM
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Chain fence eating turbo
 
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Originally Posted by Hill3312 View Post
Haha, it's just difficult to find them. There's still one on Ebay, but it's 2300... I can wait.
I sent you a PM on mine yesterday I believe
Old 12-20-2017, 04:12 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #54 (permalink)
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Quote:
Originally Posted by quattrorunner View Post
Check around. Recyclers May have one. I wish you wouldn’t have hacked up that sc intake. Even 8 years ago it made sense but these days porsche parts are valuable. You could have offset the cost better.
Also maybe do a post here wtb add in the classifieds. I know they’re not cheep but you should be able to still get one for 800-1200 and it’s worth it.
Man that's crazy. I paid $500 for mine two years ago and was able to sell most of the components I did not need off of it for almost the price I paid for it. Crazy how the market has skyrocketed on these things. Must have gotten mine at just the right time. Although I was searching for almost a year to find the right one at the right price.

Hill3312, I do agree with QuattroRunner that it is worth it to get the Carrera manifold, just be patient.
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1976 911S Signature Edition
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IG: Signature_911
Old 12-20-2017, 07:33 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #55 (permalink)
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Just found this on Rennlist, looks like Jon at EBS has a 3.2 he is parting out, including the intake manifold:

https://rennlist.com/forums/parts-marketplace/1038191-ebs-racing-fs-911-3-2-engine-parts.html
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3.2SSt (JE 98mm 9.5:1 pistons, 964 Cams, ARP Rod Bolts, Big Port SC Heads, 3.2 Carrera Manifold, ID725's, B&B Headers, Tial 44mm, TS RacePort, BW S360, AEM Infinity 506, E85)
IG: Signature_911
Old 12-20-2017, 07:38 AM
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/\ /\ /\
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Turbo powa!
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Old 12-20-2017, 08:04 AM
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BTW on the engine install itself, you need this.
Coupled with a board that fits your exhaust this will make what appears to be a three man job doable with only one man easily....really. And attach the trans to the engine first on final install as it's way easier to get it done completely as a unit..
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Old 12-20-2017, 08:35 AM
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Chain fence eating turbo
 
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For $2300, I'll throw on my 964 intake on top of my 3.2 intake I've offered to sale to the OP and install it at his place.

Wow!
Old 12-20-2017, 08:41 AM
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One man with all exhaust and trans as a unit. Taken right after done. Long time ago.
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Old 12-20-2017, 08:46 AM
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