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Engine Tech Technical discussion related to all relevant engines such as KA, SR, RB, CA, 2JZ , L24/26/28, VG, VQ, and LSx series. |
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#4081 | |
Zilvia Junkie
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Quote:
Sweet post pics when you get it!
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'98 Kouki Build in Progress '10 Subaru Legacy 2.5GT |
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#4083 | |
Zilvia Addict
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Quote:
I just want to know how long these trannies are living, and at what Tq level. I really want a 6spd, I hate how gross my r154 feels when I shift it! What rear end ratio are you running?
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S13 XE coupe: Aristo GTE, R154, GT37, Defsport Wilwood kit, KTS coilovers |
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#4084 |
Leaky Injector
![]() Join Date: Oct 2010
Location: Columbia, SC
Age: 44
Posts: 128
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W58 is what I went with since I won't be going over 450 hp. People say they shift much better than r154. I have a 350z and I can tell you there are better tranny s out there. Z tranny is notchy. Also im not sure they are stronger than the strongest version W58 that I got out of a mk 4 NA Supra.
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#4085 | |
Post Whore!
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#4087 |
Zilvia Member
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#4089 | |
Zilvia Junkie
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Quote:
It's a way cheaper alternative for the v160 or v161. And for the price that r154 and even w58 are going now days I would considered this z trans setup any day. 03-04 z trans have synchro problems and if you find one of them cheap enough you can just get the newer synchros and rebuild it and have a solid trans. I'm still running the stock s13 rear 4.10 gear so on a bank track where with my r154 I used to be in 3rd with the new trans I'm in 4rd gear same with lower speeds where if I was in 2nd now I'm I'm 3rd. |
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#4091 |
Zilvia Junkie
![]() Join Date: Sep 2010
Location: Oklahoma city, ok
Age: 35
Posts: 414
Trader Rating: (11)
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I'm just wondering for the price it costs to do a 350z tranny swap, you could pretty much have a MC built r154. Wonder if it's still better to go with the z trans
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#4092 |
Zilvia Addict
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Well you have to consider whether you want a 25 year old tranny or a much newer one.
Whether you want the longer gear spacing of the 5 speed, or close ratio 6 speed. Whether you want to dump $ into this old tranny in hopes of putting a bandaid on the known issues it has - 1st gear thrust washers being one of them. If I can find something even a little more stout than the r154, I'm going for it. The 350z tranny sounds like it could take some decent abuse, and I'm on my second r154 anyway. I'd like to get a v160 and be done, but wtf are they made of gold now? $$$
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S13 XE coupe: Aristo GTE, R154, GT37, Defsport Wilwood kit, KTS coilovers |
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#4093 |
Zilvia Junkie
![]() Join Date: Sep 2010
Location: Oklahoma city, ok
Age: 35
Posts: 414
Trader Rating: (11)
![]() Feedback Score: 11 reviews
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Good points. I got a buddy local with a 03 z33 trans he is selling me for $200!! And of course needs 5th gear synchro replaced. I've been looking at the maverick Motorsports adapter which is almost $1000 then there's Collinsadapters.com that sells the kit with a clutch of your choice from the stage 4 for $1400 to a stage 6 for $2000+. Has anyone tried either one of these kits? I'm still on my mk4 w58 and haven't had any issues but only making 350hp. But I know that's my weak point, so that's why I'm going to go ahead and upgrade this winter
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#4094 | |
Zilvia Junkie
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I'm running the collinsadapter and love it the only mods to make this work is the bellhousing milling and if you don't want to take off your trans to remove the starter then weld longer bolts in place to the adapter and then your golden. I had to rush and put mine back together and didn't even get to put some miles on the clutch to properly "brake it in" car went straight into the trailer and to the track for a 2 day Proam SWD drift event. Everything worked flawlessly, Gearing is sweet and shifting now feels like your shifting a sports car instead of a truck, and every shift went IN!! IMO it's not worth putting in all $$ to build ur r154 ![]() ![]() ![]() ![]() ![]() |
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#4095 |
Zilvia Junkie
![]() Join Date: Sep 2010
Location: Oklahoma city, ok
Age: 35
Posts: 414
Trader Rating: (11)
![]() Feedback Score: 11 reviews
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Hell ya!! I'm just a little confused on why you have to weld in bolts for the starter? Can you elaborate on this more? And i take it your using the Collins flywheel as well? If so does it allow you to just use any 350z single disc clutch?
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Follow me on Ig- Andydennington |
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#4096 | |
Zilvia Junkie
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Quote:
What I did was enlarged the starter holes where usually they have threads for the bolt to thread into, then i used the same size and thread pitch just longer so then i can use nuts on the engine side to tie it down, i then clean the area and welded the new longer bolts to the adapter so when ever I remove the adapter they come out in one piece. now if i need to remove the starter all i got to do is undo the 2 nuts and it comes right out even with the trans still in place. Here you can almost see where I welded then painted the bolts to the adapter ![]() With Collins adapter and flywheel you can use any 350z single plate clutch in the market, plush the flywheel you can replace the friction plates when they wear out so there is not problems with trying to find replacement parts. |
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#4098 |
Zilvia Junkie
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no, both Collins and Gorge offer twin plate options, both were out of stock when i got my kit and needed it asap for the event last weekend so i could not wait.
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#4100 |
Leaky Injector
![]() Join Date: Oct 2010
Location: Columbia, SC
Age: 44
Posts: 128
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Guys don't forget about the TSB problem on the concentric slave cylinder on some 350z trannies. Several people have had this problem including me. Not saying it is a bad tranny, but don't follow advice without being thorough on such a huge decision.
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#4101 |
Zilvia Junkie
![]() Join Date: Sep 2010
Location: Oklahoma city, ok
Age: 35
Posts: 414
Trader Rating: (11)
![]() Feedback Score: 11 reviews
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Thanks Johanm for the info! Much appreciated. And how much did you wind up shaving off the bell housing?
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#4102 | |
Zilvia Junkie
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Quote:
I needed to shave off 5/8" off the bellhousing, I wanted perfect clutch engagement and with the Collins kit that's how much he suggest you to do. |
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#4103 |
Zilvia FREAK!
![]() Join Date: Jun 2010
Location: Woodinville
Age: 42
Posts: 1,412
Trader Rating: (5)
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Finishing up the fuel now, -6 to rail and back on drivers side. Cell to holley red lift pump to swirl to Bosch 044(waiting on the 044 to get here to complete.
I hate an fittings now. ![]()
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#4105 |
Leaky Injector
Join Date: Oct 2007
Location: New Mexico
Age: 41
Posts: 99
Trader Rating: (1)
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I hated an fittings until I turned my fuel system on and had no leaks... lol I swear I thought it was going to spray from every fitting. it could get expensive to have blingy lines though. Sigh
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#4106 |
Post Whore!
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Johan, do you have pictures of the flywheel itself? Is it the extra thick type like Maverick's? I've seen some guy run an aluminum machined flywheel adapter which seemed pretty unsafe. I went to the collins website and couldn't find either the adapter nor the individual flywheels listed.
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