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
Rebuild Bp or go FE3?
#24
FE3. If you only hit the track once in awhile a inch or so of COG difference and maybe another 50 Lbs of weight (most of which is going to be behind the front axle-line. is not going to matter as much as cheap reliability.
Beyond the inherent DIY nature of this that will require a small amount of trailblazing, I dont see a real downside. I know I will be watching carefully.
Beyond the inherent DIY nature of this that will require a small amount of trailblazing, I dont see a real downside. I know I will be watching carefully.
#25
You'll run into input shaft length issues if you use the adapter plate. That means you'll need a custom PP that regains your tolerance lost to the plate thickness. And your shifter will sit back that much further. The TII trans has a much shallower bell than the miata 5 spd so the adapter plate works fine.
I don't think there's much trailblazing to do at this point as far as the engine swap goes.
I don't think there's much trailblazing to do at this point as far as the engine swap goes.
#26
^ The way it looked on the webpage posted earlier (Solomiata : Interchange : FE3 motor) an adapter plate is not needed at all if its done that way.
Not much in the way of unknown stuff at all. Fabbing mounts looks like a PITA, but then too I wonder if someone has some templates that would save time
Not much in the way of unknown stuff at all. Fabbing mounts looks like a PITA, but then too I wonder if someone has some templates that would save time
#28
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You'll run into input shaft length issues if you use the adapter plate. That means you'll need a custom PP that regains your tolerance lost to the plate thickness. And your shifter will sit back that much further. The TII trans has a much shallower bell than the miata 5 spd so the adapter plate works fine.
I don't think there's much trailblazing to do at this point as far as the engine swap goes.
I don't think there's much trailblazing to do at this point as far as the engine swap goes.
I agree, there isnt much for trailblazing, custom motor mounts, oil pan, intake manifold, trans plate..Easy stuff.
What is a common replacement injector when going bigger?
Last edited by dc2696; 02-20-2010 at 05:42 PM.
#29
Based on the site mentioned the injectors we tend to be familiar with will probably have sealing issues on the Kia intake mani, and he was simply going to machine in some bosses. The pics I am seeing of the FE head show the same shape that you see on the 1.6 heads which allow the injectors to basically be mounted right at the intake mani flange.
I think the same work being done with the Honda based intakes welded to the BP flange would be awesome in this case, especially considering that the FE from a Kia likely has a much more low-end focused intake anyway.
I think the same work being done with the Honda based intakes welded to the BP flange would be awesome in this case, especially considering that the FE from a Kia likely has a much more low-end focused intake anyway.
#31
The custom flywheel solution was following the application set forth by Mazda- same thickness and hardware. I don't know anything about using a spacer, but I do know that I don't want any flywheel bolts sheering in my car. Any examples of flywheel spacers elsewhere? I know the F8 I have came with a flexplate that had a 1/8" spacer on it- but that's totally different than clutch.
I'm using some aluminum bosses set into the kia manifold to use Rx7 injectors. But the OE mazda FE3 manifold has standard injector bosses.
Sportage- the biggest issue with the getrag are the ratios, especially using them in a 2200# car. Mazda's b2600 R trans will bolt up to FE but it's got "truck" ratios too. It is a solution, but you'll be swapping gears for something usable.
I'm using some aluminum bosses set into the kia manifold to use Rx7 injectors. But the OE mazda FE3 manifold has standard injector bosses.
Sportage- the biggest issue with the getrag are the ratios, especially using them in a 2200# car. Mazda's b2600 R trans will bolt up to FE but it's got "truck" ratios too. It is a solution, but you'll be swapping gears for something usable.
#32
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Tons of cars use flywheel spacers and adapter plates, H2b kits do, domestic kits I've seen them, it's nothin new and it's cheap and effective.
I've never made an adapter plate but I think if I make a dummy copy in wood then get a aluminum one water cut I'll be able to make it and not **** it up too badly
I've never made an adapter plate but I think if I make a dummy copy in wood then get a aluminum one water cut I'll be able to make it and not **** it up too badly
#34
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do an FE3 and show us all that we should do it.
if you run a spacer though, would the oil pan hit the subframe? or would you have to move the trans back that amount on the PPF and remove that from the driveshaft?
if you run a spacer though, would the oil pan hit the subframe? or would you have to move the trans back that amount on the PPF and remove that from the driveshaft?
#35
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All right Im gonna do the swap, just have to make sure my old pistons and rods are ok and sell that ****
#36
I'll tell ya, after thinking more about this, one downside I see would be the aftermarket / enthusiast support. Sure there have been a few people that have done the swap but other than that you'd pretty much be on your own. Right now with a 1.8 or 1.6, you can easily buy any aftermarket part you need and not have to worry about fitment or compatability issues (Driveline parts, bracing, etc) , people like TurboTim and ARTech make killer parts for people and can do so since they have the abilities to mock everything up on their own cars, and setups are more proven which makes it easier for one to achieve the results they are after. I know the FE3 has loads of benifits, but the more I think about it, 250whp on a stock 1.6 or 1.8 really is a headache free bargin. Sure I'd love to have more power either by a FE3, LS1, or a built BP, but its nice not having to worry too much about blowing motors, replacing parts, and all the other unknowns.
#37
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I'll tell ya, after thinking more about this, one downside I see would be the aftermarket / enthusiast support. Sure there have been a few people that have done the swap but other than that you'd pretty much be on your own. Right now with a 1.8 or 1.6, you can easily buy any aftermarket part you need and not have to worry about fitment or compatability issues (Driveline parts, bracing, etc) , people like TurboTim and ARTech make killer parts for people and can do so since they have the abilities to mock everything up on their own cars, and setups are more proven which makes it easier for one to achieve the results they are after. I know the FE3 has loads of benifits, but the more I think about it, 250whp on a stock 1.6 or 1.8 really is a headache free bargin. Sure I'd love to have more power either by a FE3, LS1, or a built BP, but its nice not having to worry too much about blowing motors, replacing parts, and all the other unknowns.
Ok I'm going to do it,
Step 1: sell old parts
#39
Go FE3. I have a genuine mazda block/head in my mx6 that I rebuilt with stock KIA parts. As of now its been sub 300hp and holding up pretty well. For a 400hp goal the only thing I can recommend is to upgrade the pistons to forged units and maintain the stock compression ratio.
I do feel very tempted to put the FE3 in my miata, but I dont want to deal with the custom stuff, just yet.
I do feel very tempted to put the FE3 in my miata, but I dont want to deal with the custom stuff, just yet.