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NSI Engine help.

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kitfox69(at)earthlink.net
Guest

Posted: Fri Jan 26, 2007 8:09 am Post subject: NSI Engine help.

For you pilots flying behind NSI EA 81 engines who are having problems, I have a reference to help you.

 Jay Roese in the Rochester, New York area solved my multitude of NSI Engine problems. I highly

 recommend him. He has agreed to talk to anyone who needs his expertise. He has an extensive background

 with Subaru engines and builds racing engines a well as rebuilds engines for car dealers. I now have a SMOOOOOTH

 running Subaru engine in my MOD IV Kitfox, thanks to Jay. This not meant in any way as an advertisement, only as a help for those NSI engine owners who are having problems.

  

   His E-Mail addrss is: phatbasstrd(at)rochester.rr.com (phatbasstrd(at)rochester.rr.com)

   His Cell #: 1-585-729-5098

  



  

  

 Floyd Johnson

 kitfox69(at)earthlink.net (kitfox69(at)earthlink.net)

 EarthLink Revolves Around You.

  

 

   [quote][b]

GENTRYLL(at)AOL.COM
Guest

Posted: Fri Jan 26, 2007 9:02 am Post subject: NSI Engine help.

Thanks, We need all the help we can get.

 Do you have an Ellison SEF-2 on your engine and if so How much fuel  pressure are you running?

  [quote][b]

asq(at)roadrunner.com
Guest

Posted: Fri Jan 26, 2007 9:13 am Post subject: NSI Engine help.

Good news Floyd! See you at 4N2 this summer.   

                                       Larry  Huntley,Dundee,NY

 [quote]   ---

kitfox69(at)earthlink.net
Guest

Posted: Fri Jan 26, 2007 11:21 am Post subject: NSI Engine help.

I am now running an EFS3A on my engine, because the 2 didn't have enough air capacity. I'm running

 about 3 PSI currently, with good results. 



 [quote] ---

Fox5flyer
Guest

Posted: Fri Jan 26, 2007 11:28 am Post subject: NSI Engine help.

Good to hear from you Floyd and thanks for the  information.  Can you tell us what some of the problems you were having  with your NSI?

 Deke

  

 [quote]   ---

GENTRYLL(at)aol.com
Guest

Posted: Fri Jan 26, 2007 12:11 pm Post subject: NSI Engine help.

Do you have an EA-81?

  [quote][b]

kitfox69(at)earthlink.net
Guest

Posted: Fri Jan 26, 2007 12:22 pm Post subject: NSI Engine help.

Hi Deke,

  

         Do you have a couple of hours? I would do this off line, but it will probably be valuable to other

 NSI engine drivers. I'll stick to the details and spare everyone the 10 years of frustratiion.

   I tore the engine down, finally, and asked Jay Roese to check it out. He was refered to me by a friend

 who knows him well. The engine was apart when Jay first saw it and he had some immediate observations.

 First off, the engine was advertised as having an 8.6 compression ratio. It had 7.7pistons in it. For the uninnitiated,

  that means the compression ratio was 7.7:1. Next, the pistons and rods were missmatched. In other words, from

 two different engines. A total NO NO. Jay next asked if the engine had been overheated? The answer was yes,

 because  the engine wasn't purged at NSI and their radiator was  too small, which they replaced with one which

 was still too small. Eventually Jay figured that out by getting engine cooling needs specs from Subaru engineers,

 then took it to RIT for a flow test, where they determined that the latest NSI radiator only had 85% of the engines needed

 cooling capacity. The reason he asked was that he suspected, and later varified, that the cylinders and pistons were

 oval as a result of overheating.

   He instantly recognized that the cam was ground into the core shaft, so that was trashed too.

 At this point he took the  engine back to his shop and did a through check. We completely overhauled it. Bored the 

 cylinders, new 8.9:1 pistons and rings, new stock cam, and anything else he deemed necessary. Basically, the 

 block and bearings were OK. We just replaced seals. The heads were OK and didn't need any work.

 Next came the SFDI ignition abortion. Jay investigates everything! He is dedicated and very through, so he contacted

 Electromotive, who supplies the modules. They told him that there is no way that system could work. The two systems

 were working against each other.  I decided to just use one module, base on the 30  year reliability of electronic ignition

 systems on automobiles. My Decision!  So  far, so  good. 

  Next, he used a exhaust computer module to check that part out. Surprise!, the NSI system is very inefficient, so he built me a 

 very simple tuned exhaust system. I built a carb heat unit which works well.

  He determined that the air volume needs of the engine were more than the Ellison EFS2 could supply, so I opted for an

 EFS3A which actually provides too much air, but that was easilly remedied by restricting the FULL OPEN throttle movement.

 In a week or two, we are going to address the oil system. According to Jay, the engine is designed to run ar '0" or negative 

 pressure. With the oil tank where it is, it is pressurizing the crankcase to 4 to 5 PSI. Probably why I have seen some postings

 here about blown seals. He is going to design a tank which fits under and behind the dry sump oil pan. I'll keep everyone posted on the results. 

    I'm sure there is more, but with so many changes, it is hard to remember what else we tackled. 

 I would urge anyone with questions to contact Jay. He will talk to you in laymans terms and you will understand what he 

 is telling you.   I hope this helps folks having problems with these engines. 

   I now have about 20 hours on the engine and it is running well and has more torque than it ever  had before. 

 Best regards,    Floyd

  

 ---

GENTRYLL(at)aol.com
Guest

Posted: Fri Jan 26, 2007 12:33 pm Post subject: NSI Engine help.

Can you give us some speed and performance data relative to RPM.  We  need your weight and Prop Specifics to compare.

  [quote][b]

Michael Logan

Joined: 10 Jan 2006
Posts: 82

Posted: Fri Jan 26, 2007 4:08 pm Post subject: NSI Engine help.

Floyd,

  

 What are you using for the pickups on the ignition now that you  have gone to one module?

  

 Mike



   From: owner-kitfox-list-server(at)matronics.com  [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of Floyd  Johnson

Sent: Friday, January 26, 2007 11:07 AM

To:  Kitfox-List

Subject: NSI Engine  help.

 

 

  For you pilots flying behind NSI EA 81 engines who are having problems, I  have a reference to help you.

 Jay Roese in the Rochester, New York area solved my multitude of NSI Engine  problems. I highly

 recommend him. He has agreed to talk to anyone who needs his expertise. He  has an extensive background

 with Subaru engines and builds racing engines a well as rebuilds engines  for car dealers. I now have a SMOOOOOTH

 running Subaru engine in my MOD IV Kitfox, thanks to Jay. This not meant in  any way as an advertisement, only as a help for those NSI engine owners who are  having problems.

  

   His E-Mail addrss is: phatbasstrd(at)rochester.rr.com (phatbasstrd(at)rochester.rr.com)

   His Cell #: 1-585-729-5098

  



  

  

 Floyd Johnson

 kitfox69(at)earthlink.net (kitfox69(at)earthlink.net)

 EarthLink Revolves Around You.

  

 

[quote]



href="http://www.matronics.com/Navigator?Kitfox-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com



[b]

_________________
Mike Logan
Fredericksburg, VA

kitfox69(at)earthlink.net
Guest

Posted: Fri Jan 26, 2007 6:44 pm Post subject: NSI Engine help.

I'm currently using the new Electromotive WEDGE SHAPED pickup. It is much more precise.

 I can get the part number for you, or you can go to ELECTROMOTIVE.COM and find it.

 They have a complete manual for the ignition modules which you can download. It has all

  the information you would need for troubleshooting etc. Be sure to download the one for your

 particular module.     Floyd

  

 



  

 [quote] ---

Fox5flyer
Guest

Posted: Sat Jan 27, 2007 5:23 am Post subject: NSI Engine help.

Thanks for the info Floyd.  You sure had your share of problems. 

Were  you the original owner.  Is it the normally aspirated or turbo?

So far so good with mine.  Only a couple easily resolved minor issues

(seal, spark plug) that caused me any trouble in just shy of 400

hours.  It's still configured just as it was delivered.  Keep us

updated as your testing progresses.

Deke

S5



--

Michael Logan

Joined: 10 Jan 2006
Posts: 82

Posted: Sat Jan 27, 2007 6:09 am Post subject: NSI Engine help.

Should that be directignition.com?  They are located  about 50 miles north of here in Manassas, VA.  I have talked to them a  number of times and they are very helpful.  I am not sure what you mean by  the wedge shaped pickup.  Is it a crank mount?  If it is, what did you  use for mounting the parts?

  

 I still have the NSI system in my hangar but I am  using the Real World Solutions ignition and injector system with the NSI  ignition pickups.  The NSI system has the toothed wheel attached to the  flywheel end of the crank and the sensors are attached to the inside of the  "bell housing."

  

 Mike



   From: owner-kitfox-list-server(at)matronics.com  [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of Floyd  Johnson

Sent: Friday, January 26, 2007 9:44 PM

To:  kitfox-list(at)matronics.com

Subject: RE: NSI Engine  help.

 

  I'm currently using the new Electromotive  WEDGE SHAPED pickup. It is much more precise.

 I can get the part number for you, or you  can go to ELECTROMOTIVE.COM and find it.

 They have a complete manual for the  ignition modules which you can download. It has all

  the information you would need for  troubleshooting etc. Be sure to download the one for your

 particular  module.     Floyd

  

 



  

 [quote]   ---

_________________
Mike Logan
Fredericksburg, VA

Michael Logan

Joined: 10 Jan 2006
Posts: 82

Posted: Sat Jan 27, 2007 6:13 am Post subject: NSI Engine help.

By the way, I hated my NSI system.  It never ran  smooth, did not develop power like it should and always ran very hot.  When  I tore the engine down, I found some "extra" parts that Lance and his crew left  that blocked off some of the oil flow.  I know they were extra because I  was very careful in counting up all the little parts that I took  out.

  

   I had RAM engines build up an engine for me and am  working on the installation now.  It is a very smooth and powerful running  engine, much more power than NSI.

  

 Mike



   From: owner-kitfox-list-server(at)matronics.com  [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of Floyd  Johnson

Sent: Friday, January 26, 2007 9:44 PM

To:  kitfox-list(at)matronics.com

Subject: RE: NSI Engine  help.

 

  I'm currently using the new Electromotive  WEDGE SHAPED pickup. It is much more precise.

 I can get the part number for you, or you  can go to ELECTROMOTIVE.COM and find it.

 They have a complete manual for the  ignition modules which you can download. It has all

  the information you would need for  troubleshooting etc. Be sure to download the one for your

 particular  module.     Floyd

  

 



  

 [quote]   ---

_________________
Mike Logan
Fredericksburg, VA

GENTRYLL(at)aol.com
Guest

Posted: Sat Jan 27, 2007 6:30 am Post subject: NSI Engine help.

What are you going to have to do as far as cowl, motor mount, exhaust, etc.   to go from the NSI to Ram.  I am considering the sme  thing

  [quote][b]

kitfox69(at)earthlink.net
Guest

Posted: Sat Jan 27, 2007 10:39 am Post subject: NSI Engine help.

I didn't change engines, just rebuilt the NSI. I'm using the same cowling, and modified the airscoop to direct all

 the air thru the radiator.

  

 



  

 [quote] ---

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