Mazworx z32 trans swap users help needed.

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BoBaCk1
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Mazworx z32 trans swap users help needed.

Post by BoBaCk1 »

Just asking anyone who has done the z32 trans swap using mazworx kit ever run into the same issue I'm having. I first started to notice at high rpm while doing a 2nd gear roll my pedal would sink. Try to grab 3rd it grinds and the pedal is stuck down like it only moves back up 2 inches. Put it in neutral and tap the pedal a few times the pedal comes back to normal.today I noticed it doesn't have to be on full throttle. If I slowly bring the rpm to redline the pedal will start to drop so it seems to be an rpm based issue. I replaced clutch master,slave and the rubber line on the clutch slave. Trust me I've bled it many times manually and with a vacuum bleeder. The pedal feels fine with regular driving but the problem happens with any type of aggressive driving I do.

Just seeing if anyone here has had that issue. Thanks.
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Re: Mazworx z32 trans swap users help needed.

Post by adamky »

I have not had that issue. Have you tried adjusting your pedal freeplay?

The only issue I have had is the annoying shifter buzzing at anything over 3000 rpms. Oh, and I also had to modify the trans crossmember to get everything to line up.
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Re: Mazworx z32 trans swap users help needed.

Post by BoBaCk1 »

Yes I had to modify my crossmember from mazworx also. Didn't fit worth a damn. I could have fabricated one for less and better quality but I didn't want to mess with it. I was under the assumption that it was a bolt on affair. I was wrong lol.

What transmission are you using n/a or TT. Did you have a problem with the clutch hitting the bell housing? I didn't grind anything on the inside of the bell housing where the clutch goes when I machined the bell housing .
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Re: Mazworx z32 trans swap users help needed.

Post by adamky »

That's very interesting that you had to modify the cross member as well. We both should probably report that to Mazworx so they can check and modify their kits.

I'm about 95% sure that I'm using the N/A trans, but I'll have to double check. I did not have any issues with the clutch hitting the bell housing. I'm using a Clutch Masters setup. RB25 steel flywheel with 350Z clutch setup with a 6 puck clutch disk.
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BoBaCk1
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Re: Mazworx z32 trans swap users help needed.

Post by BoBaCk1 »

Yeah I have the same clutch setup as you. I guess my clutch is bad or something is wrong with the way the transmission is sitting against the motor.

And we should tell mazworx about the crossmember deal. After hearing about yours that make 3 times I have heard about the mazworx trans crossmembers not working. Worst $125 ever spent lol.
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Re: Mazworx z32 trans swap users help needed.

Post by BoBaCk1 »

How about the dust plate that goes in between the engine and transmission. Are you guys using the plate still or did u take it off?
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Re: Mazworx z32 trans swap users help needed.

Post by adamky »

I cut the "hump" off of the plate and reused it. I figured out what trans I was using a while back.... but I've since forgotten.!!

I also finally replace my shifter with one from Z1 motorsports and the shifter buzzing is gone completely. But the lesson to learn here is that even the Mazworx kit has it's issues.
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Re: Mazworx z32 trans swap users help needed.

Post by BoBaCk1 »

Sweet bro, I'm using a stock z32 shifter so no buzzing for me lol.
I'm still trying to figure this issue out. It's got to the point that I'm thinking it's a trans to block alignment issue or spacing issue. That's why I asked if your running that plate still.
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Proefi pro128, e85 flex fuel
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Re: Mazworx z32 trans swap users help needed.

Post by supakat »

Chiming in on this issue. My boy has this kit with cc twin disc and has this issue. I don't have this issue so this means I am making less power than you guys I guess. lol.
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Re: Mazworx z32 trans swap users help needed.

Post by BoBaCk1 »

His pedal sinks also supakat?
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Precision 6262sp .82a/r, peakboost manifold
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Proefi pro128, e85 flex fuel
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Re: Mazworx z32 trans swap users help needed.

Post by supakat »

Yes. He asked if I heard of this. He makes 528whp but I still think hp is irrelevant but the way it happens makes it seem like it may hp is a cause. I know he said he adjusted the rod and changed slave awhile back.
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Re: Mazworx z32 trans swap users help needed.

Post by supakat »

Do you have both lower engine to tranny brackets installed? My boy changed his parts and still does it. He doesnt have these installed said he noticed adapter plate seperating from driver side.
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Re: Mazworx z32 trans swap users help needed.

Post by BoBaCk1 »

No I don't have those brackets either. I've changed both master and slave, changed to a twin disc clutch, bled many times, adjust master rod, and used high temp brake fluid. It's still the same. I'm about to drop the trans again and see what's up. I thought I was the only one with this issue. I also don't have any alignment dowel pins from the tranny to adapter plate so I'm gonna install those also. Hope that helps. I'm so confused at this point on what it could be.
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Kelford 272's,dual valve springs
Precision 6262sp .82a/r, peakboost manifold
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Proefi pro128, e85 flex fuel
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Re: Mazworx z32 trans swap users help needed.

Post by supakat »

Try putting the brackets on. I have mine installed. Could have been an issue nissan knew about and designed these brackets to correct the issue.
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Re: Mazworx z32 trans swap users help needed.

Post by BoBaCk1 »

yeah its possible. The only thing is this issue only happened once I went to the z32 trans. everything was the same on my car with the tranny swap. Same clutch and flywheel, master, and slave. only once tranny was swapped did the issue occur. That's why I made this thread to see if anyone else had this issue or any issue with the z32 trans swap that we can discuss and brain storm here. I won't stop till I figure this out lol. Any other things your friend has done to try and fix this issue? Is he running the dust plate also? does he have the alignment dowl in the adapter plate for the transmission?
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K1 rods
Arp head,main,rod studs
Kelford 272's,dual valve springs
Precision 6262sp .82a/r, peakboost manifold
Cxracing fmic
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Proefi pro128, e85 flex fuel
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Re: Mazworx z32 trans swap users help needed.

Post by R34SR »

this is concerning to me since i want to go z32 next year, the only thing i can think of is that you guys may be boiling your fluid...is your clutch line in direct contact with the manifold? is air getting into the clutch line somehow? try replacing the bleeder nipple or adding teflon tape and re-tighten....thats the only way i can tee the pedal loosing travel.
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Re: Mazworx z32 trans swap users help needed.

Post by BoBaCk1 »

No the line doesn't touch the manifold. It's very possible it's a heat issue. So I'm gonna do some things to test that theory. It's just weird that my ka trans never did this at the same power level I'm at now but my z32 trans is doing it.
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Re: Mazworx z32 trans swap users help needed.

Post by supakat »

My boy replaced everything two days ago and he noticed that the adapter plate was separating from tranny on driver side. Only logical issue is when it separates the slave rod extends out and when it comes back, it is not enough to let the pedal spring bring it back up. Now, you say you had no brackets with ka tranny. My reasoning is the ka gears are shorter which requires less of a load. The z32 has longer gears so it requires more umph from the motor which puts force on the drivetrain. If the clutch was heating up, your brakes would have gone first before clutch. Also, if you drive hard and the pedal falls, you pull it back up with your foot and drive easy, the clutch works as it should.
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Re: Mazworx z32 trans swap users help needed.

Post by duncan351 »

i used to loose my clutch after some heavy highway pulls or at the drag strip. It was a heat related. I used the largest unit bit and made six holes in the bell housing for ventalation. Two in the top, two in the bottom and one on each side. I have never lost my clutch pedal since.
One thing I do want to know is who has a perfect working speedometer and are you running Z32 speed sensor or S14? How did you get your speedometer to work properly.
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Re: Mazworx z32 trans swap users help needed.

Post by supakat »

S14 needs the dakota speed sensor. I have 93 dash with j30 diff and 3mph faster on gauge.

That is interesting with bell housing ventilation. With my friends car, on the first pull from 1st it drops. With the car not even fully warm the issue happens.

I sourced some brackets for my boy. Gonna get those to him today to install and see what happens.
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Re: Mazworx z32 trans swap users help needed.

Post by adamky »

I've got the Dakota speed signal converter. Took a while to figure out the correct settings to use, but now it's dead on, verified by GPS
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Re: Mazworx z32 trans swap users help needed.

Post by BoBaCk1 »

Let me know how it goes supa. It seems me and your friend have the exact same issue.
Built ka-t
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K1 rods
Arp head,main,rod studs
Kelford 272's,dual valve springs
Precision 6262sp .82a/r, peakboost manifold
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Proefi pro128, e85 flex fuel
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Re: Mazworx z32 trans swap users help needed.

Post by R34SR »

This thread has my attention...the whole bellhousing adapter separating story has me baffled.
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Re: Mazworx z32 trans swap users help needed.

Post by supakat »

Will do. The brackets will keep the tranny snug to the block/adapter plate. All that rotational force has to go somewhere. **** I just broke my xcessive cross member. Alonso helped me out by telling me to use auto cross that was a bolt up affair. Tq is a best.
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Re: Mazworx z32 trans swap users help needed.

Post by adamky »

I'm using the Xcessive oil pan, which has a flange to bolt the trans to. With this oil pan, you can't use the brackets. With the stock trans, I was able to get 2 bolts in to bolt the trans to the pan. However, none of the holes lined up enough on the Z32 trans to get any of those bolts in. I guess I'll have to address the issue when I install my turbo setup.
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Re: Mazworx z32 trans swap users help needed.

Post by duncan351 »

supakat wrote:S14 needs the dakota speed sensor. I have 93 dash with j30 diff and 3mph faster on gauge.

That is interesting with bell housing ventilation. With my friends car, on the first pull from 1st it drops. With the car not even fully warm the issue happens.

I sourced some brackets for my boy. Gonna get those to him today to install and see what happens.
I also remember flushing my clutch fluid and changing over to Castrol GTX brake fluid. I think it maybe dot 3 but it works way better than any stuff you will buy over the counter including higher rated synthetic fluids. Use this on my brakes and clutch. Also may want to make sure you are using a good slave cylinder. I only use a nissan. I don't trust after markets.
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Re: Mazworx z32 trans swap users help needed.

Post by supakat »

My went to throw his up and the passenger you can get a nut and bolt but driverside no go. I have xcessive plate and I have all holes with brackets to use. He said the driver side bolt to block from adapter plate pulled out and damaged threads.
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Re: Mazworx z32 trans swap users help needed.

Post by BoBaCk1 »

So to update I removed the tranny and saw nothing obvious wrong. I drilled and added 2 alignment dowels to my adapter plate. I left the dust plate on. I drilled 5 holes the size of a quarter all around the bellhousing while leaving the starter plate cover off. So there shouldn't be heat build up. It's 40 degrees right now and my issue is still there. Did a 2nd ,3rd and when going into 4th the clutch pedal got spongy and felt like it didn't come all the way out. At this point I'm at a loss. I'm not one to give up but I'm so mentally and physically stressed from this I'm about to give up. I don't see how I can be having this much of an issue and only one other person here has a similar issue to mine. Out of how many other people that are using this swap.
Built ka-t
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K1 rods
Arp head,main,rod studs
Kelford 272's,dual valve springs
Precision 6262sp .82a/r, peakboost manifold
Cxracing fmic
Fuel injector development 2000cc
Proefi pro128, e85 flex fuel
Rb25 flywheel, dxd 350z clutch
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Re: Mazworx z32 trans swap users help needed.

Post by duncan351 »

adamky wrote:I've got the Dakota speed signal converter. Took a while to figure out the correct settings to use, but now it's dead on, verified by GPS
Hey Adamky can you share with us your how you set your Dakota converter and your settings if you don't mind?
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Re: Mazworx z32 trans swap users help needed.

Post by ViperGT »

anyone solve this issue? i dont think heat and boiling fluid is the cause. I think the trans is flexing from the adapter plate, especially with the twin plates heavy pressure plate. designing some part to clamp the trany to the engine on both sides might help address the issue, Since there isnt bolts that go through the trans straight into the block.
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