Transmission Whine Options

[HardHead93]

Within the last few days I started getting a whine from the car whenever I push the clutch in but it goes away as soon as the clutch is fully engaged or fully disenaged. It even happens if I ride the clutch without fully disengaging it (no, I do not ride my clutch normally). Everything is pointing to the throw out bearing. mad.gif CRAP! I just got the car all back together and now this. The sad thing is that this is a fairly new throwout bearing that came with my SPEC stage 2 clutch. If I had to guess, there is less than 2000 miles on this throwout bearing. Is the throwout bearing going bad or is it just going to make that noise because it is not an OEM part?

This post has been edited by HardHead93: Dec 11, 2016 - 5:33 PM

[VavAlephVav]

Is this a swapped 3s on the stock s54 transmission?

What kind of problems do you normally see with the turbo motor on an S transmission instead of the E transmission?

[HardHead93]

Is this a swapped 3s on the stock s54 transmission?

What kind of problems do you normally see with the turbo motor on an S transmission instead of the E transmission?

Sorry for the late response. Yes this is a 4th gen 3sgte on a s54 tranny. I have not had any problems with the tranny on this engine. To be safe, I am running lightweight shockproof for the gear oil and I swapped from an open diff to a MR2 LSD out of the E153. I also am running a stage 2 spec clutch and a lightweight flywheel. I have heard that the weakness in this set up is the axles, not the tranny. I was told these axles tend to break over 300 hp (but I am not at 300 hp so I am good).

From the research I have done, the big difference between the s54 and the e153 are the gear ratios. The s54 tends to rev higher than the e153 in the same gears when doing a comparison. This is good for turbo spool but you tend to have to shift sooner in the s54 than the e153. This is speculation but I am guessing that an e153 would have a better zero to 60 mph time than a s54 with all other things being equal because the s54 car would have to shift to 3rd gear while the e153 could stay in 2nd (2 gear shifts vs 1).

This post has been edited by HardHead93: Jan 27, 2017 - 1:28 AM

[slavie]

From what I've "heard", the S box starts breaking gears with over 250HP. Some guy snapped 2nd gear under boost. Just remember reading that somewhere, don't have the source.

Also, you can change the final drive to the camry 3.944 from celica's 4.176 (some celicas in Europe come with 3.944 from factory). That's what I did - camry final drive and 5th gear, celica 1-4 gears. Decent amount of work, as I had to completely disassemble the output shaft (final drive gear is part of the shaft), but throwing it as an option for future readers. Longer 5th gear for highway cruising, shorter 1-4 for zipping everywhere else.

I swapped from an open diff to a MR2 LSD out of the E153

Curious on how you coerced an E153 diff into an S-series box. Are you sure it was an E153 MR2 and not the N/A S54?

If the E-series diff fits, you'd have to use e-series CV axles. But, I've never heard of that before. They also look kinda different.

Please elaborate.

[HardHead93]

Curious on how you coerced an E153 diff into an S-series box. Are you sure it was an E153 MR2 and not the N/A S54?

If the E-series diff fits, you'd have to use e-series CV axles. But, I've never heard of that before. They also look kinda different.

Please elaborate.

My fault it is an LSD out of the MR2 but not the e153. I bought it used in Ebay with this description, "Toyota Helical Limited Slip Differential LSD MR2 Spyder Celica Lotus C56 C60 C64." I guess this LSD fits multiple transmission. All I had to do was move over the plastic speedo gear and the huge diff gear. My Celica axles fit fine with this diff. On the left is the MR2 LSD and on the right is the open diff that comes in the Celica S54.

From what I've "heard", the S box starts breaking gears with over 250HP. Some guy snapped 2nd gear under boost. Just remember reading that somewhere, don't have the source.

I heard the teeth on the S54 transmission can be a little more delicate. I also heard some of the guys running S54 transmissions on MR2s are doing 400hp with a stock 4th gen 3sgte. I wonder how long the tranny and the engine will last pushing them that hard.

This post has been edited by HardHead93: Jan 27, 2017 - 7:43 PM