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> Official Sasquatch build thread Part 1, Cosmo Rotary Turbo... Then boom...
Rotary'14
post Feb 17 2011, 08:18 PM
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QUOTE(kg6dxn @ Feb 16 2011, 07:39 AM) *

QUOTE(thenewwazoo @ Feb 15 2011, 11:00 PM) *

Just found your build - it looks nice! A few thoughts from someone who knows a little about rotaries...

2000cc primaries are HUGE. You may well find that you have trouble making it idle with primaries that big - that's why Mazda and most aftermarket setups use smaller primaries, and large secondaries. The bigger the "jump", the harder it is to tune the transition, but the better your idle will be. I used to run 1600cc secondaries for my big-turbo setups. You do need big secondaries for big power, tho - the BSFC of rotaries is pretty high, even compared to turbo boingers.

The GT35R is a good turbo, though I agree you'll be understressing it. Some would say not using it. (IMG:style_emoticons/default/wink.gif) It's certainly a better choice than trying to use the 13B-RE's stock twin setup. It's complex and flaky at best, though the 13B-REW's setup is even worse. If you decide to go full-on crazy, a not-too-uncommon setup is with parallel twins, using one per exhaust port. What's your turbo's hotside A/R?

You haven't mentioned it yet, so in case you don't know it, you'll need to either use a pre-89 metering oil pump setup (and, iirc, the pre-88 13B front cover), or premix your fuel like a 2-stroke.

I was thinking about down sizing the injectors too. They will be a little hard to control in low rpm. I will most likely go with 800/1600 since I can hit my HP goal just fine.

My hotside A/R is .82 so it should spool quickly. I looked at doing dual turbos but asside from the "BLING" factor, I couldn't see the need for the complexity. The cheapest dual turbo manifold I found was around $800. I'm using the KISS method and staying with a single turbo.

As for the OMP. I ordered an electronic OMP controller from www.eomp.info A guy name Jason builds them to control the OMP's stepper motor. I am also using a Rotary Aviation OMP bypass to run 2-stroke oil from a seporate tank. I will however pre mix during EFI tuning just to be safe. I do have an 89 OMP and front cover just in case my plans fail.

That electronic OMP controller is so COOL! I haven't been keeping up on the latest and greatest stuff. Those Aussies sure love their rotaries. I can see you like them too. Keep the pics coming so I can get fired up on my rebuild.

-Robert
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Mike Bellis
post Feb 17 2011, 08:20 PM
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QUOTE(Andyrew @ Feb 17 2011, 06:07 PM) *

NICE! I love Vband clamps. 4" is Biiiig Are you going to keep it 4"?
muffler?

4 inch all the way. I'm running a seporate small muffler for the waste gate. Not sure which muffler for the WG but this is the muffler for the turbo...

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Chris Pincetich
post Feb 17 2011, 10:03 PM
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I thought "TT" meant Targa Top?
(IMG:style_emoticons/default/biggrin.gif)
You already have one of the most unique 914s I have ever seen, with this new motor your competition is shrinking. Keep up the good work! (IMG:style_emoticons/default/beerchug.gif)
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Mike Bellis
post Mar 6 2011, 01:11 AM
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My adapter showed up. Now i can finish the fab of the motor mounts. I bolted my core tranny to it for fitting purpose.

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Mike Bellis
post Mar 6 2011, 01:12 AM
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Another...

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Mike Bellis
post Mar 6 2011, 01:18 AM
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I did some work inside. I welded a bracket that bolts to the existing ash tray mounting screw holes. Mounted are my HKS Boost controller, Apexi Turbo Timer and my oil injection pump controller. I left some extra space to the right for my Navigation maybe.

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Mike Bellis
post Mar 6 2011, 01:23 AM
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Now I have to figure out where I am putting my boost gauge. Either I redo the dash or find a cool pod for the dash.

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I also cut out the old cage in the trunk to make room for my spaer tire. I found some old damage on the passenger shock tower. I have a donor car in the garage to cut and patch from...

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Mike Bellis
post Mar 6 2011, 01:25 AM
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Now for the sad part. My car is outside! I was parting out the car in the garage when my clutch went out and... well... things snow balled into an engine swap...

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Andyrew
post Mar 6 2011, 04:10 AM
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Spooling.... Please wait
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Mike it looks like your making great progress! PS, you have more visible guages than I could imagine actually using! Count one vote for navigation. I always put a spot for those in my cars, really makes for a much more enjoyable experience when you dont have to worry about that.

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Lennies914
post Mar 6 2011, 10:14 AM
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You are moving right along! Everythings looking good. Give me a shout if you ever need a second set of hands, I'd love to come check it out.
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Mike Bellis
post Mar 6 2011, 11:46 AM
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Thanks for the support guys!

For the historic record, here is an old pic of my rear trunk...

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Mike Bellis
post Mar 7 2011, 09:51 PM
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I forgot to mention. I found some major California rust on my car. I fixed it with a wire wheel and some zinc primer. I am building a trailer hitch and tying it into the roll cage. Pics of the receiver tube coming this weekend...

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Mike Bellis
post Mar 7 2011, 09:53 PM
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Lennies914
post Mar 7 2011, 09:55 PM
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QUOTE(kg6dxn @ Mar 7 2011, 07:51 PM) *

I forgot to mention. I found some major Californis rust on my car. I fixed it with a wire wheel and some zinc primer. I am building a trailer hitch and tying it into the roll cage. Pics of the receiver tube coming this weekend...

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Where do we have to live to escape this damn rust!
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roadster fan
post Mar 7 2011, 10:01 PM
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(IMG:style_emoticons/default/aktion035.gif) Looking good, keep up the good work!

Jim
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Andyrew
post Mar 7 2011, 11:11 PM
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My honda has more rust than that!
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Mike Bellis
post Mar 20 2011, 04:48 PM
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I finally got my engine mount finished and installed. The welding was complete two weeks ago. Paint last week and install today. I built it with 1.25" square tube 0.120 wall and some 1/4" steel plate. Then covered it with VHT orange/red. The bushings are high durometer poly from an old project.

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Mike Bellis
post Mar 20 2011, 04:49 PM
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Here's another pic. The rain in Cali is really slowing down my progress...

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Mike Bellis
post Mar 20 2011, 07:26 PM
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I have also been working on my trailer hitch. I took inspiration from Majkos and the car-b-que. I welded in the receiver tube. The transmission brace now has some 1.25, 0.120 wall square tubing to re-enforce the brace. Some 1/8 plate ties the two together. I drilled some holes in the bottom of the trans brace to weld some plugs on the underside. I also welded some 1/8 plate to the rear bulkhead. I welded the receiver to this and added some screw in eye bolts to tow from. The whold thing is beefy and solid. It all hides under my spring loaded license plate holder. I welded some 14ga to the center of the trunk to hold my spare tire bracket too. most of this work was done two weeks ago. Now I need to turn to the right tower damage. I suspect this happened during the cars racing career. The steel is super thin under the damage. I will cut a patch panel from the car in the garage.

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Mike Bellis
post Mar 20 2011, 07:27 PM
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