Rebuild Bp or go FE3? - Page 3 - Miata Turbo Forum - Boost cars, acquire cats.

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View Poll Results: Which motor to go with now for 350-400whp
Rebuild bp with built bottom end and 99 head 18 31.58%
Stock FE3.. 39 68.42%
Voters: 57. You may not vote on this poll

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Old 02-22-2010, 02:27 PM   #41
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I'm going to keep all the internals stock, if Marc made 460whp on a stock bp bottom end I can surely do it on a Fe. His motor wasn't a gernade either.

Ya Rob you should hook me up with some info and pics on your swap. How do you like the rx7 trans? I could sell my 6spd and pick one of those up super cheap as they can hold 400hp pretty well
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Old 02-22-2010, 02:50 PM   #42
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Cspence- you'd be surprised how big the aftermarket is for the FE3. It's just not in the rwd arena. For example I picked up set of Fidanza adjustable cam gears for $185 on a group buy over on mx6.com. There's several piston manufacturers that make forgies for it and the will be a forged rod group-buy coming up on mx6.com. And as neo mentioned- you can go to 2.2 with an F2T crank. I picked one up for $25 in perfect condition. This engine was the high end four cylinder big block "main stay" for Mazda much like the BP was. Just everywhere else - we got the KL v6 instead.

I started a build thread, throwing it up first over on cr.net and never got finished. I was going to bring it over here and our local site but got busy with work. There's links there to the oil pan and motor mount adapter plate drawings with some measurements. Not exact but safe guidelines. You'll get 4.5 qts with the modified kia sportage pan and will go up from there with a cooler and lines.

I never got the tII trans in. Got sidetracked with my intake manifold and then the tree fell. The tII was the easy choice for me- a buddy gave me two of the transmissions - and they are cheap even from salvage yards. But in theory you'll only need one.
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Old 02-22-2010, 10:23 PM   #43
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how much grinding would it take to make the jerry rigged bp intake welded to the mounts not look so jerry rigged... if its even possible? cough smog cough
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Old 02-22-2010, 10:34 PM   #44
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Quote:
Originally Posted by m2cupcar View Post
Cspence- you'd be surprised how big the aftermarket is for the FE3. It's just not in the rwd arena. For example I picked up set of Fidanza adjustable cam gears for $185 on a group buy over on mx6.com. There's several piston manufacturers that make forgies for it and the will be a forged rod group-buy coming up on mx6.com. And as neo mentioned- you can go to 2.2 with an F2T crank. I picked one up for $25 in perfect condition. This engine was the high end four cylinder big block "main stay" for Mazda much like the BP was. Just everywhere else - we got the KL v6 instead.

I started a build thread, throwing it up first over on cr.net and never got finished. I was going to bring it over here and our local site but got busy with work. There's links there to the oil pan and motor mount adapter plate drawings with some measurements. Not exact but safe guidelines. You'll get 4.5 qts with the modified kia sportage pan and will go up from there with a cooler and lines.

I never got the tII trans in. Got sidetracked with my intake manifold and then the tree fell. The tII was the easy choice for me- a buddy gave me two of the transmissions - and they are cheap even from salvage yards. But in theory you'll only need one.
True, I guess I wasn't looking at things that way and I forget that there is a cult following for every car/motor out there (I don't make it off the miata boards too often)....Once I see more videos of your car in action it'll probably seal the deal for me
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Old 02-23-2010, 09:47 AM   #45
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frostyllama wtf are you asking?

I bet dc2696 will have vids up in two weeks, maybe three.
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Old 02-23-2010, 10:12 AM   #46
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If only the block was Al.......wakes up from dreaming...
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Old 02-23-2010, 10:43 AM   #47
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Quit living in the present and come back to the iron age.
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Old 02-23-2010, 10:49 AM   #48
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I remember picking up the bare block by myself years ago and straight struggling. It is a heavy beast.
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Old 02-23-2010, 10:52 AM   #49
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5 QTS of oil would be nice if the car does end p seeing a lot of track time. Sweet.

I think what he was asking about the intake was i its possible to make a homebrew (as with the Honda intake adapted over to a BP flange) intake look OEM....ish.

You can make anything look pretty OEM. Just make it look dirty and run semi-pointless wiring/vac lines in the area.
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Old 02-23-2010, 11:13 AM   #50
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Yes- 50-60lbs heavier than the BP. Both engines fully dressed- that's with the stock cast exhaust mani on the FE and the tubular on the BP, which probably adds 10+ lbs. to the FE.

Spare- I've got an OE mercedes oil cooler that holds a full qt. I plan on installing and it's not "that" big. Rx7 cooler is larger- and then there's the nascar style short and wide units that hold even more (used on eBay). So adding oil capacity is fairly simple.

Yes on the intake- but it requires the same process of sizing the plenum and finding similar port alignment/spacing/shape. I've got an aftermarket evo manifold that I was in the process of retrofitting for my FE to replace the B6/Kia hybrid I'm running.
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Old 02-23-2010, 11:22 AM   #51
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Thanks for the info M2Cup, thats an awesome build. I need to get a damn job/car/life. I want to do an FE build so bad right now. I have half the stuff I need to go turbo sitting in my living room right now.
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Old 02-23-2010, 12:51 PM   #52
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Quote:
Originally Posted by neogenesis2004 View Post
If only the block was Al.......wakes up from dreaming...
Aluminum is for cans, Not blocks! Lol
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Old 02-23-2010, 05:53 PM   #53
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Quote:
Originally Posted by m2cupcar View Post
frostyllama wtf are you asking?

I bet dc2696 will have vids up in two weeks, maybe three.
is it possible to make an intake that looks like it's meant to be there, so no one asks any questions semi annually.
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Old 02-24-2010, 05:21 PM   #54
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Like this?
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Old 02-24-2010, 06:11 PM   #55
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I'll bet if you just painted or otherwise marked the intake with something like MAZDA DOHC 16V EFI it would never even raise an eyebrow. Grind down the welds a bit and dirty it up before hand if its a real concern. Those inspectors dont have the time to really familiarize with an engine bay on a 20 year old car.
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Old 02-24-2010, 09:11 PM   #56
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Yes like that, my god it's sexy. I need it.
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Old 03-03-2010, 01:58 AM   #57
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i vote for the fe3. you should also look into a 4g63 though. it would require the same work needed for the fe3, and people are starting to swap those into more and more rwd platforms.

plus, you'd easily hit the 400hp mark with a 4g. with companies like ams, the4g63shop, jestr, machv theres a lotta performance parts.
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Old 03-07-2010, 08:52 PM   #58
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A fire breathing N/A FE3 on nitrous. HHHHMMMMMMM!
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Old 03-08-2010, 12:39 AM   #59
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go fe3 or go home
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Old 03-09-2010, 11:46 PM   #60
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I'm debating transmission options atm, until I get an FE and have a look at the bolt spacing vs the 6spd I won't know if I'll make an adapter to run a 6 spd or a turbo 2 trans.

I'm also looking at doing a complete tubular front subframe to give me some options for mounting that big bastard in there.
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