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09-15-2014, 11:46 AM | #1 |
2ZR swap. DO IT! Ask how!
Drives: 09 Meteoric Metallic HB Join Date: Feb 2011
Location: West Michigan
Posts: 2,333
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Final Score: LSD 1, Inside Wheel Spin 0
So I just took the new gearbox out for a spin around the block. HOLY CRAP! No inside wheel spin on hard acceleration out of the corners, lots more torque in 2nd gear and it now lands inside the power band between 1-2 shifts. I haven't gotten on the freeway yet, so I haven't been able to test 3-4-5, but I'll take care of that once I'm done getting the steering column aligned again. The steering also feels much more responsive, but that could just be a camber change.
For those of you that haven't been following the saga, check out the back story here: http://www.yarisworld.com/forums/showthread.php?t=35999 |
09-16-2014, 06:18 PM | #2 |
2ZR swap. DO IT! Ask how!
Drives: 09 Meteoric Metallic HB Join Date: Feb 2011
Location: West Michigan
Posts: 2,333
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More musings after one 30 mile rural commute and one suburban lunch run.
I'm still getting used to the presence of the LSD, but it makes a huge difference in the corners. I got the tires up going over a railroad crossing, so I felt the difference between open and limited right away. (Helical diffs become open diffs if one wheel has zero traction.) It gets a little twitchy when engine braking, and the steering effort seems more deliberate, but all in all it looks like it's worth the blood sweat and (tears?) money. The new gear ratios are AMAZING! I can land above 4k RPMs and pull strong in 2nd, 3rd and 4th. The taller 5th with the xB final drive seems to be just right for highway cruising now, and isn't completely useless. I still have the factory governor, so the "lost" top speed is irrelevant. Long story short: if you have the mechanical aptitude and/or funds for either project, DO EEEET! Next on the list of terrible ideas? Cat-back exhaust! |
09-16-2014, 06:42 PM | #3 |
Drives: 2015 H Production Yaris Join Date: Oct 2009
Location: Debary, FL
Posts: 1,953
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Amazing you were able to patch those pieces together and make it work. Congratulations.
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2005-2008 SCCA Solo BS National Champion 2017-2018 SCCA H Prod National Champion |
09-17-2014, 05:48 AM | #4 |
2ZR swap. DO IT! Ask how!
Drives: 09 Meteoric Metallic HB Join Date: Feb 2011
Location: West Michigan
Posts: 2,333
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Thanks! It's been a really fun project, and I've learned a lot in the process. Hopefully someone else can benefit from my adventure, too.
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09-17-2014, 11:12 AM | #5 |
0-60 in slow
Drives: light blue liftback Join Date: Aug 2009
Location: so cal
Posts: 926
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Might have to pick your brain for my coming up build.
How are you liking the quaife? |
09-17-2014, 12:28 PM | #6 | |
2ZR swap. DO IT! Ask how!
Drives: 09 Meteoric Metallic HB Join Date: Feb 2011
Location: West Michigan
Posts: 2,333
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Quote:
The Quaife is very streetable, and responds well in the corners. I've got an AutoX coming up this weekend, so I can really see what it does on the short course. |
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09-18-2014, 11:43 AM | #7 |
This is awesome. Any chance for a part # and where you got the lsd from.
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09-18-2014, 12:49 PM | #8 |
0-60 in slow
Drives: light blue liftback Join Date: Aug 2009
Location: so cal
Posts: 926
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So what are the gear ratios you finally ended up with. I saw what was posted on page 1 but I wasn't sure if that's what was used in final assembly.
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09-18-2014, 02:54 PM | #9 |
Drives: Toyota Yaris Track prepped Join Date: Nov 2013
Location: The Netherlands
Posts: 34
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Nice mate! Really looking forward to installing my TRD LSD. Cant wait for it to get on the track. Only thing is that i have to be careful of curb hopping because its a helical like you said and it becomes an open diff.
Tell me about your findings when you did an Auto-X
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Time Attack Toyota Yaris 1NZ-FE Supercharged |
09-18-2014, 05:06 PM | #10 | |||
2ZR swap. DO IT! Ask how!
Drives: 09 Meteoric Metallic HB Join Date: Feb 2011
Location: West Michigan
Posts: 2,333
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Quote:
Quote:
Quote:
Either way, I'll try and post my findings by the end of the weekend. |
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09-18-2014, 05:14 PM | #11 |
Minimalist
Drives: 07 silver sedan Join Date: Jun 2014
Location: Mississauga, GTA, Toronto, ON
Posts: 432
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Helical, so like a Torsen, right? If that's the case, a little feathering of the brake would do to keep diff pulling, yes?
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09-18-2014, 05:36 PM | #12 |
2ZR swap. DO IT! Ask how!
Drives: 09 Meteoric Metallic HB Join Date: Feb 2011
Location: West Michigan
Posts: 2,333
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09-18-2014, 05:55 PM | #13 |
Minimalist
Drives: 07 silver sedan Join Date: Jun 2014
Location: Mississauga, GTA, Toronto, ON
Posts: 432
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Well if it's any encouragement, it took me 3 months and 5,000 km in two cars to get confident with left foot braking. Not much trouble at all.
No more steering wheel headbutts. Last edited by sheekeebut; 09-18-2014 at 06:19 PM. |
09-18-2014, 05:58 PM | #14 |
Minimalist
Drives: 07 silver sedan Join Date: Jun 2014
Location: Mississauga, GTA, Toronto, ON
Posts: 432
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And with your diff, I bet it would be like the REAL Yaris coming to life.
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09-20-2014, 01:54 PM | #15 |
Searched for the quaife diff. It is a little pricey so I went with the TRD LSD which I just ordered for nearly half the price at $690.44 its a mechanical diff the same as the quaife which means cheaper maintenance and should be pretty strong.
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09-20-2014, 07:07 PM | #16 |
2ZR swap. DO IT! Ask how!
Drives: 09 Meteoric Metallic HB Join Date: Feb 2011
Location: West Michigan
Posts: 2,333
|
Well, ran the autoX today. Can't really report much as it was a REALLY dirty course and it rained just before our heat. Of the 4 runs, I had one ABS-related error, one cone, one spin/DNF and one clean run. I was still able to break the tires loose on corners--which given the surface conditions might be expected--but overall it seemed to be better behaved. I also didn't spend any time chasing tire pressure, so that may have been a contributing factor. There were also some strange grinding noises when the tires broke loose on a straightaway, but that could just be the noise a helical makes when engaging under low/lost traction.
The final drive mod is absolutely amazing for our car! I launched in 1st and then hit 2nd by the second gate. Kept it in 2nd the rest of the way and had no lack of power or redline conditions the whole course. YMMV, of course, depending on the track. |
09-20-2014, 09:12 PM | #17 |
ULTIMATE
Drives: 07 Yaris Turbo Join Date: May 2007
Location: Canoga Park, CA
Posts: 14,859
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I can beat TH Motorsports every time
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Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific. |
10-01-2014, 05:20 PM | #18 |
Just got my TRD lsd and it is a clutch.
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Tags |
final drive, gear ratio, lsd, swap, wheelspin |
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