beerslurpy

I'm kind of annoyed at not being able to do the 2/3 shift, Anyone know of a decent engine damper that will work with a turbocharged miata? I know there were some on ebay, but I cant find the link.

kotomile

iTrader: (24)

I used the homedepot method, only 14 bucks!

But it wasn't a damper, it was solid.

Kelly

iTrader: (6)

I am assuming you already have the Mazdaspeed engine and differential mounts?
Try and score some RS Aizawa rear diff mount spacers or maybe a Beatrush rear platform brace.

kotomile

iTrader: (24)

what do those aizawa spacers do?

Kelly

iTrader: (6)

They fill in the gap between the actual diff mounts and the "Snubbers"

m2cupcar

iTrader: (5)

I thinking of making one using a sway bar end link. They sell universal end links at autozone with poly bushings for bigger cars and it looks like a good fit with some brackets fab'd up.

beerslurpy

I'm just gonna get an ebay one and make it fit around the turbo. If it doesnt work, I can move on to progressively more expensive and complicated solutions.

My hunch is that putting a brace directly opposed to the engine's movement at the place of greatest angular momentum will have the greatest likelihood of fixing the problem. All the other solutions seem to offer marginal improvements in stiffness that are very close to the axis of rotation.

If the ebay brace doesnt work, I will probably do the MS mounts next, followed by the okayama tranny brace and then the FM chassis brace.

Kelly

iTrader: (6)

The Okuyama tranny brace helps a bit...but not like doing the Beatrush rear brace will.
If you replaced the soft rubber mounts on the Okuyama with something of a higher durometer you would probably be in good shape.

beerslurpy

Ooh I never never heard of the beat rush brace before. I might give that a try then. Know of any places that have them in stock?

Kelly

iTrader: (6)

http://www.metromotorsports.com/prod...sp?pProdID=162

Sounds like it may be sold out for now.

Here is the Okuyama front lower.
http://www.metromotorsports.com/prod...sp?PprodID=146


These guys ship really fast. I would hold off on both of these until you do the Mazdaspeed mounts though.

Here is the engine mounts.
http://corksport.com/store/index.php...0&j=1165100378
Diff Mounts
http://corksport.com/store/index.php3?cmd=checkout

beerslurpy

Are the mazdaspeed mounts really that worthwhile?

Kelly

iTrader: (6)

Yes. They make a nice difference on their own. Even better when paired with the diff mounts. You won't get that shifter to stay in one place though untill you eliminate the powerplant frame and hard mount the tranny. The Mazdaspeed mounts are a great compromise.

You could look into these too.
http://www.function-7.com/a0-f7mx05mt.html

I have never heard of anyone actually having a set though. Kinda expensive

bripab007

I've got MS engine and diff. mounts as well as the Okuyama single slot brace that connects the tranny, and I still miss the 2-3 shift :(

Kelly

iTrader: (6)

Do any of you guys run a short shifter? It was one of my first mods I did for my Miata and I never had much trouble with the 2-3 shift.

beerslurpy

How much power are you making? I never really missed shifts below 12 psi.

Kelly

iTrader: (6)

I was making nowhere the power that you are. Rob at Flipside had the same issue once he got near the 200 whp mark and ended up eliminating the power plant frame altogether and building a front mount for the rear diff and hard mounted the transmission. It is the best shifting Miata I have ever driven. Its pretty loud with all the gear noise being transmitted right into the cabin.

beerslurpy

Alright, I'll let you guys know what works as I try it.

Braineack

iTrader: (62)

i must shift really slow.

beerslurpy

12 psi on a 1.6L is less torque and hp than on a 1.8 with a 99 head. You've got less bore and slightly less stroke riding on the same transmission and similar motor mounts.

airbrush1

never had a 2-3 problem.... but at redline, the 1-2 shift is a PITA..... even with my mazdaspeed mounts and short shifter