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Old 09-01-2015, 11:40 AM   #41
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Then next time you find a cheap one, let me know.
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Old 09-01-2015, 11:57 AM   #42
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I think for your purposes, you should just buy a BP5A dropout from the ebays. Maximum swag. You'd end up with pretty much the power i make, plus a little, in a lighter chassis.
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Old 09-01-2015, 12:50 PM   #43
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Quote:
Originally Posted by curly View Post
Top tranny-engine. You can break them loose with a bent 17mm wrench, but zip everything else off with an impact. Dropping the PPF is super nice too. Remember, the non-shouldered rear bolt goes into both holes, and a strong hit with a sledge pops off the nuts up top, to allow the PPF to slide off the diff.

I really wish you hadn't gone with the un-sprung though. I don't necessarily think it's about breaking a transmission, as it is about wearing it out. Think whining bearings and worn teeth.
Wait do people really completely drop the PPF when changing the clutch? I have always just removed the 2 long 17mm bolts at the trans, and then the 14mm bolts. Then just pushed the ppf off to the side a bit. I have never seen a need to completely remove the ppf.
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Old 09-01-2015, 12:53 PM   #44
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That's what i did in reverse when i put the PPF back on the trans. On my car doing the diff swap i put the diff under the car with the PPF already attached. Then just moved it all around until it worked. No reason to drop the whole PPF for this job that i can see. I'd also rather not mess with the rear bolts/nuts under the car. They were un-fun enough outside of the car.
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Old 09-01-2015, 12:56 PM   #45
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<p>What lars said. Just push it to the side.</p><p>I thought it was going to be way harder than it was.</p><p>I dropped and lifted the trans by myself, just needed a helper to spin the driveshaft plug to get the input shaft to line up while I humped the bitch in there.</p><p>I'll take video next time.</p>
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Old 09-01-2015, 03:17 PM   #46
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<p>Its 1.8 only.</p>
Happy Meal?

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What he said. Otherwise, i like the FM2, do not enjoy the FM1.
What do you like about the FM2, and dislike about the FM1?
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Old 09-01-2015, 03:19 PM   #47
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<p>
Quote:
Originally Posted by huesmann View Post
Happy Meal? <img alt="" src="images/smilies/dunno.gif" title="Dunno" /> What do you like about the FM2, and dislike about the FM1?
</p><p>Yes, the happy meal is 1.8 only.</p><p>Probably not stiff enough. He likes it rock hard....</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>....in the butt</p>
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Old 09-01-2015, 03:22 PM   #48
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Happy Meal?


What do you like about the FM2, and dislike about the FM1?

I very specifically said in the first post that i am not interested in 1.8 stuff.

I like the feel of the FM2. It's stiff and has a very positive engagement. Both FM1s i've had feel like i'm sticking my foot into a 5 gallon bucket of spaghetti. With about the same feedback, and the same engagement point travel from the "rim" of the bucket to the "floor" of the bucket.

Moot point, as neither are available in 1.6 flavor.
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Old 09-01-2015, 04:47 PM   #49
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On a lift, it's just as easy to use the impact to remove the rear 17mm bolts when you do the front, then pry the 30-50 battery cable clips off, and remove the PPF completely. One more thing out of your way, and adds maybe 5 minutes.
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Old 09-01-2015, 04:51 PM   #50
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<p>Not all of us have fancy smancy shops to work in like you do </p>
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Old 09-01-2015, 04:58 PM   #51
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Yeah i'll be doing this on my back on jack stands. I had a bad experience with PPF hardware about... 5 weeks ago. I don't feel like repeating that, or even taking the chance of repeating that.
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Old 09-01-2015, 05:24 PM   #52
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....in the butt
Wrecked 'em.

I hope he took my counsel on which one was stiff.
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Old 09-04-2015, 11:39 AM   #53
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Originally Posted by concealer404 View Post
I very specifically said in the first post that i am not interested in 1.8 stuff.

I like the feel of the FM2. It's stiff and has a very positive engagement. Both FM1s i've had feel like i'm sticking my foot into a 5 gallon bucket of spaghetti. With about the same feedback, and the same engagement point travel from the "rim" of the bucket to the "floor" of the bucket.

Moot point, as neither are available in 1.6 flavor.
What you're saying is, you want to retain the OEM 1.6 flywheel?

Quote:
Originally Posted by Flyin' Miata
The Happy Meal will fit any 1990-05 Miata, including 1.6 engined cars.
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Old 09-04-2015, 11:42 AM   #54
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What you're saying is, you want to retain the OEM 1.6 flywheel?
He is going to use a lightweight 1.6 flywheel. All the FM setups require you to goto a 1.8 flywheel of some sort.
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Old 09-04-2015, 11:43 AM   #55
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Quote:
Originally Posted by huesmann View Post
What you're saying is, you want to retain the OEM 1.6 flywheel?
No, i have a 2000.

I want to use a lightweight 1.6 flywheel and the lighter and smaller diameter clutch that goes with it for lower inertia, faster revs, and a more fulfilling lifestyle.
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Old 09-04-2015, 12:17 PM   #56
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Default Can't Wait for 949 Clutch Anymore

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Originally Posted by concealer404 View Post
No, i have a 2000.

I want to use a lightweight 1.6 flywheel and the lighter and smaller diameter clutch that goes with it for lower inertia, faster revs, less power impulse smoothing and a more fulfilling lifestyle.
FTFY
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Old 09-04-2015, 12:21 PM   #57
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Uh oh. Is this going to make my car uncomfortable or not so great on the street?
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Old 09-04-2015, 01:17 PM   #58
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Default Can't Wait for 949 Clutch Anymore

No. It can increase the momentary stresses on the transmission gear teeth. The crankshaft rotation speed is always trying to change, even if you are traveling at a steady speed. Power comes in pulses that are evened out and steadied by the rotating mass. Speed up, slow down, speed up, etc. The crank twists and flexes between the throws every time a pulse acts upon it, too. Reduction in flywheel mass increases the variation in speed of rotation instead of storing some of the pulse energy to then release it between pulses to reduce the slowing effect. Additionally, you selected an unsprung clutch, which also will not offer any impulse absorption or release. The only place to absorb the variations in impulse energy is within the gear lash tolerances of the transmission and differential, and with whatever twisting and flexing occurs in the shafts and driveline. It isn't a really big deal with components that can handle the forces but our transmissions have proven to be marginal when pushed. Some say the stock oil pump failures are related to the lack of smoothness in our engines, exacerbated by increasing the severity of the pulses by increasing the power or by reducing the rotating mass.
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Old 09-04-2015, 01:19 PM   #59
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Gotcha.

Still not worried. 6spd + n/a BP = whatevs.
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Old 09-04-2015, 03:07 PM   #60
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Default Can't Wait for 949 Clutch Anymore

Quote:
Originally Posted by concealer404 View Post
Gotcha.

Still not worried. 6spd + n/a BP = whatevs.
True. If N/A you can go as light weight as you can to not be dog slow.
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