 Project 914n6 -> the infamous Nissan V6 swap, new motor buildup |
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| Chris914n6 |
 Sep 2 2022, 09:03 PM
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#21
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Jackstands are my life.  Group: Members Posts: 3,307 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region  |
Another sleepy day of small projects.
The Pathy TB has a nice pair of unused bosses in the perfect place to mount a cable bracket, so I threaded them m6x1.0. In the process I realized they both didn't go all the way through. (IMG:style_emoticons/default/headbang.gif) Don't know if I want to risk drilling after threading... (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1662174189.1.jpg) Seemed like a good time to mount the rear sway bar so I made these. Then in test fitting I found rust, so I decided that should probably wait... (IMG:style_emoticons/default/headbang.gif) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1662174231.1.jpg) But to end on a positive note... sleeping on a problem resulted in an easy solution to the FPR location issue. Bracket fabrication in progress.... |
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| Chris914n6 |
Sep 3 2022, 03:16 AM
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#22
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Jackstands are my life. Group: Members Posts: 3,307 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
Well lookie here, I made #2 on Google (IMG:style_emoticons/default/piratenanner.gif)
(IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1662196585.1.jpg) Since I'm on the subject of #2... ....the bay got painted this evening. We will say it looks better than 21 year old primer and leave it at that. Someday I will make the whole car all nice like, but I want to (IMG:style_emoticons/default/driving.gif) at least 9,146 miles first (IMG:style_emoticons/default/hissyfit.gif) (IMG:style_emoticons/default/black914.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1662196586.2.jpg) Now something I'm good at... Waffle Aided Design & cardboard brackets (IMG:style_emoticons/default/laugh.gif) Nailed it on v2.1 (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1662196586.3.jpg) |
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| Retroracer |
Sep 3 2022, 08:18 AM
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#23
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Senior Member Group: Members Posts: 609 Joined: 7-July 13 From: Bend OR Member No.: 16,100 Region Association: Pacific Northwest 
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Using Eggo waffle packets to make bracket patterns? Well, I've seen Stranger Things.
Thx, I'll be here all week. - Tony PS. Interesting build, keep the posts coming! |
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| Chris914n6 |
Sep 5 2022, 02:31 AM
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#24
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Jackstands are my life. Group: Members Posts: 3,307 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
The acc cable bracket was a bit more involved design. Penciled a few ideas before deciding this design would be strong enough and easy to make. KISS
Upped my game with CAD this time. I was a CorelDraw wiz in my past life in signs. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1662366673.1.jpg) Prototyped with WAD of course (IMG:style_emoticons/default/biggrin.gif) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1662366673.2.jpg) Will be a perfect fit after the adapter is installed. (IMG:style_emoticons/default/first.gif) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1662366673.3.jpg) Since I felt like avoiding sweating buckets today, and I thought the trunk light would be good if it didn't shine on the ground and everywhere like a ricer, I did a little hobby painting before putting it back on. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1662366673.4.jpg) |
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| Mueller |
Sep 6 2022, 12:41 AM
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#25
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None
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These will ship out in the morning. Hope they work!
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| Chris914n6 |
Sep 8 2022, 01:09 AM
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#26
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Jackstands are my life. Group: Members Posts: 3,307 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
QUOTE(Mueller @ Sep 5 2022, 11:41 PM)  These will ship out in the morning. Hope they work! They look perfect. Thanks so much for making these. Since everyone is dying to know... the TB adapters required a 3 step process of SAD, CAD & RAP. First both TBs were digitized using Scanner Aided Design. Then measurements were taken and overlaid using Computer Aided Design. Then that was converted to physical form using Ritz Aided Prototyping. (IMG:style_emoticons/default/lol-2.gif) This allowed me to get an idea of how it would fit at the trunk wall. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1662620965.1.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1662620966.2.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1662620966.3.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1662620966.4.jpg) Bonus that the FWD vq35de intake is 2 piece, which allows me to fabricate (ideas?) a non-trunk interfering option in the future (IMG:style_emoticons/default/biggrin.gif) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1662620966.5.jpg) |
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| Chris914n6 |
Sep 14 2022, 01:34 AM
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#27
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Jackstands are my life. Group: Members Posts: 3,307 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
Today was Metal ---- in the mailbox (IMG:style_emoticons/default/aktion035.gif) (IMG:style_emoticons/default/wub.gif)
(IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1663140842.1.jpg) I like to start the day off with easy stuff. I figured the bottom wasn't too thick, so with a center punch I was able to pop the bottom out without damaging the threads. Then I tapped it all the way thru. Basically it just gives me flexibility with bolt length/type. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1663140843.2.jpg) Then a moment of truth... @mueller SUCCESS!!! (IMG:style_emoticons/default/beerchug.gif) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1663140843.3.jpg) Officially earned my Binky Badge* (IMG:style_emoticons/default/smash.gif) (IMG:style_emoticons/default/smilie_pokal.gif) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1663140843.4.jpg) *(not a real thing) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1663140843.5.jpg) |
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| Chris914n6 |
Sep 14 2022, 02:14 AM
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#28
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Jackstands are my life. Group: Members Posts: 3,307 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
(IMG:style_emoticons/default/hitfan[1].gif) (IMG:style_emoticons/default/ar15.gif) Andrew Wang
So the dudes cam adapter diagram is wrong again, this time in a super important way. The actual cam pin bolt circle is 33mm NOT 34mm. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1663143241.1.jpg) So I had to make them fit, which took hours I didn't have to spare. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1663143241.2.jpg) But I got it to fit with careful filing. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1663143241.3.jpg) But there is an even bigger problem. There is a groove where the piece mounts.... (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1663143241.4.jpg) ...that lets the gear rotate many degrees. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1663143241.5.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1663143241.6.jpg) Even if I could get it lined up and torqued there is no guarantee it wouldn't slip in use. Way to janky for me. Wasted day. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1663143241.7.jpg) |
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| Chris914n6 |
Sep 14 2022, 03:16 AM
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#29
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Jackstands are my life. Group: Members Posts: 3,307 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
The cam adapters seemed to be the easy method, but it's not the only one. Others choose to drill the cams, too involved and risky for me. Or drill the cam gears, which is a solid way to do this (plus new gears are cheap and easy).
So with much, very very much thought, totaling half a day, I moved forward with what I had available... 2 cnc machined adapters as templates (off by 0.5mm) 1 undersized socket 1 paper towel roll cut to work as a shim 1 loose fitting center punch 1 wobbly Harbor Freight drill press 5 American size drill bits near 2mm 3mm 4mm 5mm 6.1mm 2 cojones from a desperate man with too close of a deadline (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1663146962.1.jpg) Must include that impossible to acquire skill of Divine Intervention... (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1663146963.2.jpg) I can't describe the feeling when this worked out at this level. At this point I called it a night and drank the elixir of stress relief (IMG:style_emoticons/default/beer3.gif) The next morning I decided it has been too stressful to try to get the 914n6 running for RRC22. I'll finish it up when I get back. |
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| Mueller |
Sep 14 2022, 11:01 AM
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#30
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None
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Awesome amount of work and very ingenious Chris.
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| Chris914n6 |
Dec 3 2022, 01:10 AM
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#31
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Jackstands are my life. Group: Members Posts: 3,307 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
After RRC I wasn't in a hurry anymore... and I discovered Link now makes a plug-in 350z ecu... so I started rethinking the plan. (IMG:style_emoticons/default/idea.gif) I have a vq35de harness hidden somewhere. Nissan makes a floor mounted e-gas pedal. The 3.0L ecu will run the 3.5L but things will be a bit off so a new ecu was on the list anyways.
Plan the work. Work the plan. Change the plan. Spend more money. (IMG:style_emoticons/default/dry.gif) But luckily for my wallet I was motivated to work on something else. Plus it gets cold in my north facing garage. The infamous 1988 Nissan Partsfinder is pretty much worn out @233k. It's fine for local needs but sucks for touring and can barely get it's own butt up the Baker grade - forget towing a 914. I was looking into a newer Pathfinder (one with the vq35de (IMG:style_emoticons/default/biggrin.gif) ) when circumstances offered a likely better option. The next door neighbor's 2004 Chevy Blazer broke again and he was ready to move on. He took good care of it and I did most of the previous fixes, so I couldn't say no. BUT, what I thought was a bad spark plug wire and broken motor mount was actually a leaking injector and hydrolock damage (IMG:style_emoticons/default/sad.gif) So it sat for a while, because, frankly, Partsfinders don't break. (IMG:style_emoticons/default/aktion035.gif) Eventually I scored a 61k engine & trans from a wrecked 2001 S10. Last winter I finally committed to fixing it. I got it put together and running again by this summer but there were some other issues. After the 16 hours of driving for RRC I was motivated to finish the Blazer. Still a few little things but at this point it's practically (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1670051447.1.jpg) |
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| Chris914n6 |
Apr 9 2023, 06:14 PM
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#32
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Jackstands are my life. Group: Members Posts: 3,307 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
So it started as a simple MIA (Mosquito Involved Absence) from the N6 engine rebuild, which lasted into winter, so I moved to backyard projects cuz that’s where the sun shines making it reasonably warm. Also includes some much overdue house projects but unfortunately this year had uncooperative weather so even those are behind schedule.
But in March I had some random downtime, and a need to make room in the garage, so I decided to install the mockup VQ35 with the 914 trans. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1681085648.1.jpg) Begin plot twist... |
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| Chris914n6 |
Apr 9 2023, 06:14 PM
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#33
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Jackstands are my life. Group: Members Posts: 3,307 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
Three decisions were then made. One, I’d like to swap in a WRX trans as I’d like 300+hp with no worries. Subaru Diff is 1.5” closer to the engine compared to the 914, and with the VQ30 I used RH spacers to move it FORWARD 1.25”, so repositioning the drivetrain is necessary, which leads to 2. The VQ35 VCT gears add 1.5” to the front of the motor, which would not be a problem if I moved it back to stock location. Plus I'd prefer to keep it for it’s benefits.
Step one: Can I clock this heater coolant tube at the rear of the engine? (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1681085672.1.jpg) Yes! (IMG:style_emoticons/default/biggrin.gif) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1681085672.2.jpg) Step two: Install drivetrain (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1681085672.3.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1681085672.4.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1681085673.5.jpg) Decision three, the VQ35 intake as is hits the trunk lid if I use the VQ30 conv bits and that is no bueno. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1681085673.6.jpg) |
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| Chris914n6 |
Apr 9 2023, 06:14 PM
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#34
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Jackstands are my life. Group: Members Posts: 3,307 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
An hour here, an hour there, I narrowed down the sweet spot.
914 trans moves rearward 1”. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1681085689.1.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1681085689.2.jpg) Oil pan sits 3/4” below the floorpan – similar to the VQ30. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1681085689.3.jpg) The engine lid will get a minor beauty hump. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1681085689.4.jpg) The custom intake extension/MAF/filter box will go where the battery sits. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1681085689.5.jpg) The battery will move to the drivers side. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1681085690.6.jpg) Trunk will get a removable cover panel to clear the fuel rail. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1681085690.7.jpg) Add VQ40 headers for a better flowing dual exhaust. Lastly, cable shift. I may or may not do the Subaru trans at this juncture. |
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| Chris914n6 |
Apr 9 2023, 06:15 PM
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#35
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Jackstands are my life. Group: Members Posts: 3,307 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
Continuing…
That’s a lot of work to be done, and I’m still paying insurance, so I looked more into the VQ30 cooling issue. One of the exhaust ports looks different... (IMG:style_emoticons/default/idea.gif) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1681085717.1.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-431-1681085717.2.jpg) So the plan when I get caught up is to pop the heads off and if it’s an easy head gasket fix, I’m putting the 3.0 back in. (IMG:style_emoticons/default/w00t.gif) End plot twist. |
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| FL000 |
Apr 9 2023, 06:48 PM
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#36
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Member Group: Members Posts: 389 Joined: 31-January 12 From: Lancaster, CA Member No.: 14,076 Region Association: Southern California
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Sounds like you are coming full circle and that’s ok if it gets you back on the road sooner.
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| ClayPerrine |
Apr 10 2023, 06:36 AM
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#37
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Life's been good to me so far..... Group: Admin Posts: 15,430 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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I want to ask a curiosity question here.
Why use a WRX transmission? With it you have to remove all the stuff that hooks to the rear driveshaft, and install an aftermarket block off plate. Then you have to make custom axles to use it in a 914 chassis. And you still have to make an adapter plate/clutch assembly to hook it to the Nissan engine. Plus you have to fabricate a cable shift setup. Why not use a Boxster/Cayman G86-21 transmission? It is 2 wheel drive, so you don't have to do any mods to it, and you can use stock, unmodified Porsche 996 axles in a 914. And it already comes setup for a mid engine cable shifter. It also appears that the VQ35 starter mounts from the engine side (I could be wrong though), so with the Boxster/Cayman trans, you don't have a big unused open hole in the bell housing. The prices on the Porsche G86-21 trans are about $2500.00. The Subaru trans is cheaper, but with all the mods you have to do it may be cheaper to use the Porsche trans. Just my $.02 worth on it. |
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| 76-914 |
Apr 10 2023, 08:49 AM
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#38
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,494 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California
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| tygaboy |
Apr 10 2023, 09:09 AM
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#39
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914 Guru Group: Members Posts: 5,279 Joined: 6-October 15 From: Petaluma, CA Member No.: 19,241 Region Association: Northern California
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To @clayperrine Clay's question: Chris is handy and clearly likes to fab stuff so more of a DIY may appeal to him. Plus the aforementioned cost savings.
Plus, I suspect Chris is a charter member of the "mine is different/special" club! (IMG:style_emoticons/default/aktion035.gif) That said, I've been noodling on re-powering my LS car with a Nissan V6 and, if I understand it correctly, Kennedy Engineering could supply a complete adaptor kit to the Boxster trans, if he wanted to go that way. |
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| ClayPerrine |
Apr 10 2023, 09:26 AM
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#40
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Life's been good to me so far..... Group: Admin Posts: 15,430 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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QUOTE(tygaboy @ Apr 10 2023, 10:09 AM) Plus, I suspect Chris is a charter member of the "mine is different/special" club! Oh.. and like I am not?? (IMG:style_emoticons/default/biggrin.gif) I was just offering alternatives, not criticizing. |
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