JZA70 vs MA70 motor mounts

[Kristian_Wraae]

What are the differences between the stock JZA70 and the MA70 motor mounts?

They have different part numbers:

JZA70 : 12361-46040 http://www.toyodiy.com/parts/p_J_1993_TOYOTA_SUPRA_JZA70-BJPVZ_1107.6.html?hl=12311

MA70 : 12361-42050 http://www.toyodiy.com/parts/p_E_1992_TOYOTA_SUPRA_MA70L-BJPVZC_1107.2.html?hl=12311


I have swapped in a 2JZ-GTE with automatic transmission (the JZA80 one) using the MA70 mounts. And to position the gearbox correctly in height I needed some spacers. But when putting the spacers on the rear housing of the gearbox I find that the engine oilpan hits the nut holding the steering rack.

So I was wondering if the JZA70 mounts are slightly higher than the MA70.

Has anyone compared the two?

 

[JonoTurbo]

Yes, there is about 1/4" difference between heights the rubber section of the mounts. My finding though was that the JZA70 mounts are actually shorter than the MA70 ones.

http://www.supramania.com/forums/sh...s-7M-89-Rubber-Engine-Mounts&highlight=mounts

Unfortunately the pictures from my old thread have since been deleted.

 

[dubsupra209]

would mk4 mounts have less vibration at higher speeds..?

i have bic poly mounts but it vibrates at high horsepower

 

[kneedragger85]

would mk4 mounts have less vibration at higher speeds..?

i have bic poly mounts but it vibrates at high horsepower

I couldn't notice any vibration with the MKIV TT at 400rwhp.

 

[Kristian_Wraae]

Can you use the mkIV mounts? I have some but it seems like they have a wrong angle (a different angle compared to the stock MA70 mounts) and they also had a locating stud in the wrong place.

 

[hvyman]

Mk4 mounts can be used in the mk3 no problem. Just have to grind off the little stud.

 

[Kristian_Wraae]

Ok. I just thought they had a difference angle between top and bottom.

The ones I have look like this:

I haven't checked but are they of the same height as the stock MKIII mounts?

 

[dubsupra209]

I couldn't notice any vibration with the MKIV TT at 400rwhp.

cool i think im going to get some soon down the road..i have 7m also and should be close to 400hp pretty soon..

 

[kneedragger85]

Ok. I just thought they had a difference angle between top and bottom.

The ones I have look like this:

I haven't checked but are they of the same height as the stock MKIII mounts?

The MKIV TT mounts I have look like this,

 

[Kristian_Wraae]

Hmm, why are they different? What year are yours? Mine are from a 1993.

---------- Post added at 01:36 PM ---------- Previous post was at 01:35 PM ----------

Seems like the brackets on the mkIV subframe must be different between your and my donor car. My mounts have a slight angle.

 

[Jostar]

The brackets you have are the wrong ones, You have to use the JZA70 brackets, It seems you have the MKIV/soares brackets...

 

[kneedragger85]

Hmm, why are they different? What year are yours? Mine are from a 1993.

---------- Post added at 01:36 PM ---------- Previous post was at 01:35 PM ----------

Seems like the brackets on the mkIV subframe must be different between your and my donor car. My mounts have a slight angle.

The brackets you have are the wrong ones, You have to use the JZA70 brackets, It seems you have the MKIV/soares brackets...

I believe I purchased 1998 TT mounts way back in 2007. The photo isn't mine but shows the same mounts I have...not brackets. I purchased BIC brackets and already completed my swap.

 

[IJ.]

cool i think im going to get some soon down the road..i have 7m also and should be close to 400hp pretty soon..

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