1989 535i - sold
1999 M3 Tiag/Dove - sold
1998 M3 Turbo Arctic/black - current
2004 Built motor TiAg/Black - Sold
2008 E61 19T Turbo-Wagon - current
2011 E82 135i - S85 Swap - current
1998 M3 Cosmos S54 swapped Sedan - current
1998 Turbo: PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53
If its 5" longer than a ZF that will also help with the critical speed/vibration problems with a 1 piece shaft. 2 piece is still ideal for the noise reduction and critical speed, but if you need this transmission you probably need something bigger than the joints, center spline, and tubing in the oem E36 shaft. Would be really cool if there was some combination of mabey the front shaft off a 5 series V8 or something and an aftermarket rear section with bigger U joints.
This is a decent option. But leaves us in the same boat, no option for advancement as far as making it stronger. I've seen quite a few of these break at the 700ftq mark. Also, if you could make it work, the 8 bolt (08 range) n54 flywheel/clutch kit bolt up to an m5x/s5x crank. That would open up a lot of clutch kits for the swap. Also, of you thought the zf trans in the e36 felt sloppy, these are even worse! Eitherway, still a much better option than rolling through ZFs or biting the bullet for a 420g.
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Sorry but I haven’t found any evidence of the sort. Can you provide some more info on these broken ones? What’s “quite a few” or can you link me to one?
With the broken ones are we talking launching 700wtq, antilag, 4500lb e9x, drag radials, without preloading driveline? Maybe some Wheel-hop? What I wanna know is with all these was there an identifiable cause. Maybe they were all the same driver?
Im very curious because out of everyone I have talked to I have had absolutely zero reports of power related failure, so this is vastly different.
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Last edited by vollosso; 04-09-2018 at 10:39 PM.
1989 535i - sold
1999 M3 Tiag/Dove - sold
1998 M3 Turbo Arctic/black - current
2004 Built motor TiAg/Black - Sold
2008 E61 19T Turbo-Wagon - current
2011 E82 135i - S85 Swap - current
1998 M3 Cosmos S54 swapped Sedan - current
1998 Turbo: PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53
Hop on the n5x page on Facebook. Search WTB trans, should give you a few results. No, none were from drag racing. No n5x car drag races lol
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Follow my builds on youtube and IG.
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I think if you are making 700 lbs rwtq and drag racing you should accept breakage as part of the deal. Probably the same goes for street racing. This trans is officially rated at 530NM, which is not even 500 lbs at the crank, but like the ZF320, is known to hold a lot more and even BMW, presumably with ZF approval, put it behind motors making more than that.
Probably the built automatic is the better option for high power drag racing.
I am not confident there is any great option for high power manual drag racing or street racing. Maybe a Samsonas? Maybe a T56 Magnum? But you will spend 4-8 times as much on one of those trans as you will on a used GS6-53 that sells for $750 on eBay and reportedly as little as about half that if you get lucky with a junkyard.
I am planning on this GS6-53 conversion for my 700 rwhp 600 lb rwtq street car. It is the option that makes the most sense to me.
Last edited by pbonsalb; 04-10-2018 at 07:43 AM.
Also keep in mind there's a pretty good chance that when those cars rolled out of the factory there was torque truncation in the first couple gears. This is gonna be to hit full useful life of the part and doesn't indicate the failure point.
Usually you'll have a torque limit for input shaft and individual gears as well. Not always for a catastrophic failure as nvh is a huge concern when it is getting signed off on in production.
Isn't the bolt pattern on the housing the same as the e36 trans? I know of 2 people running the earlier n54 trans that does not have the pilot bearing in the input shaft. But like I said, the n54 8 bolt crank clutch setups bolt to the e36, so in theory you should be able to bolt up the trans and run an n54 clutch kit. Just have to figure out starter. Slave will work as well.
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Follow my builds on youtube and IG.
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The bolt pattern is different.
There isn’t an earlier n54 trans.
Your friends are probably running a m54 zhp trans. Considerably more rare and only rated for like 20% more tq vs a zf320. Also, you still need a special flywheel as the pilot is located in the flywheel.
The 6s-53 series was selected for availability and strength. Zf rates them at nearly 100% more than our trans.
There isn’t enough spline length to run a factory n54 clutch after you create an adapter to attach the transmission.
At the end of the day you still need a clutch and a trans brace for any of these. The only difference is the adapter ring which allows you to run a cheaper, more available, and stronger trans.
Sent from my iPhone using Tapatalk
1989 535i - sold
1999 M3 Tiag/Dove - sold
1998 M3 Turbo Arctic/black - current
2004 Built motor TiAg/Black - Sold
2008 E61 19T Turbo-Wagon - current
2011 E82 135i - S85 Swap - current
1998 M3 Cosmos S54 swapped Sedan - current
1998 Turbo: PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53
That’s where I was at.
I wanted a trans I didn’t have to worry about third gear with, and if something happened I wouldn’t be out 3k+ like a t56 magnum. All said and done this whole swap will be less than the cost of that transmission...
You’re right, BMW put them in cars up to 505ftlbs (680nm) weighing in the ballpark of 4500#.
Sent from my iPhone using Tapatalk
1989 535i - sold
1999 M3 Tiag/Dove - sold
1998 M3 Turbo Arctic/black - current
2004 Built motor TiAg/Black - Sold
2008 E61 19T Turbo-Wagon - current
2011 E82 135i - S85 Swap - current
1998 M3 Cosmos S54 swapped Sedan - current
1998 Turbo: PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53
The thing I like about the T56 Magnum is the captive shifter. Should eliminate any sloppiness from street motor and trans mounts. But it’s about $4k for the trans and bell housing. Driveshaft, clutch/flywheel, and shifter are costs common to most conversions. So it could be $3000 vs $7000, which is a big difference. That is a year’s worth of monster drinks.
My buddy blew up his T56 Magnum. He was able to rebuild it but the rebuild cost a lot more than to buy this ZF.
Last edited by chikinhed; 04-11-2018 at 04:49 PM.
'97 M3, Estoril blue, 2 dr, euro 6-spd, EFR 9180 divided T4 .92 IWG, RK tuning, CP 8.5:1 pistons, Eagle rods, Schrick cams, L19 11 mm ARP studs, O-ringed block, Supertech stainless/inconel valves, Supertech springs & Ti retainers, ported head, S54 oil pump/pan, 80 lb. injectors, OBD1 intake manifold, Steedspeed twin scroll T4, 3.5" SS exhaust, eBoost2 EBC, HFS-4 W/M injection, AEM Failsafe, Zeitronix data logger, Racelogic TC, OpenOBC w. ethanol %, Ireland Eng. engine mounts, UUC black tranny mounts w. enforcers, UUC twin disc feramic, ARC-8's, MCS 2-ways, Z3 rack, Rallyroad strut bar, X brace, Eibach sway bars, Ground Control LCAB bushings, Bimmerworld RTAB's, Powerflex subframe bushings, 210 4-clutch LSD, Stoptech BBK, titainium shims, steel braided lines, brake cooling ducts.
Does this open the door for a possible ZF 8HP50, 8HP70, or 8HP75 in the future or does the lack of electronic TB on the E36 prevent that? Those would be significantly faster and more consistent for the drag guys. The 8HP50 in the 340i is so, so good it's hard to tell it's not a DCT.
Nah, it’s an LS3 twin turbo ‘71 Camero trying to catch me on the track. The forward bearings get starved of oil and fail if you don’t install a spray nozzle and pump. It’s been holding the power since but he hasn’t been back to the track with it since.
https://m.youtube.com/watch?v=A_lEnXzeKz8
Last edited by chikinhed; 04-12-2018 at 05:22 PM.
So when do you plan to release this kit, and at what price point?
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UTI Class of '10, BMW "STEPchild"
Acurazine.com Mod Squad
Waiting on the flywheel to be complete.
I was hoping to have it on my car this coming week but keep hitting delays on the clutch setup. The final pricing will be totally dependent on the final clutch cost.
To keep the manufacturing cost reasonable Im outlaying for 12 kits.. as soon as I know it all works perfectly it will be available to you guys.
Sent from my iPhone using Tapatalk
1989 535i - sold
1999 M3 Tiag/Dove - sold
1998 M3 Turbo Arctic/black - current
2004 Built motor TiAg/Black - Sold
2008 E61 19T Turbo-Wagon - current
2011 E82 135i - S85 Swap - current
1998 M3 Cosmos S54 swapped Sedan - current
1998 Turbo: PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53
Is the input shaft thicker on this transmission vs the 420G?
1989 535i - sold
1999 M3 Tiag/Dove - sold
1998 M3 Turbo Arctic/black - current
2004 Built motor TiAg/Black - Sold
2008 E61 19T Turbo-Wagon - current
2011 E82 135i - S85 Swap - current
1998 M3 Cosmos S54 swapped Sedan - current
1998 Turbo: PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53
Hey guys finally some good news, clutch is ironed out. I am so excited to test this setup.
The prototype clutch (for my car) is a carbon-compound full-face twin-disk. Rated for 1000ftlbs tq. Added bonus, this compound should exhibit exceptional wear life.
Im also looking at cae style shifters for this setup, I really am looking forward to WOT 2-3 shifts.. something I refrain from currently hah.
Sent from my iPhone using Tapatalk
1989 535i - sold
1999 M3 Tiag/Dove - sold
1998 M3 Turbo Arctic/black - current
2004 Built motor TiAg/Black - Sold
2008 E61 19T Turbo-Wagon - current
2011 E82 135i - S85 Swap - current
1998 M3 Cosmos S54 swapped Sedan - current
1998 Turbo: PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53
1989 535i - sold
1999 M3 Tiag/Dove - sold
1998 M3 Turbo Arctic/black - current
2004 Built motor TiAg/Black - Sold
2008 E61 19T Turbo-Wagon - current
2011 E82 135i - S85 Swap - current
1998 M3 Cosmos S54 swapped Sedan - current
1998 Turbo: PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53
Good stuff, this way us BMW fan boys can say we have full BMW OEM parts.
Sent from my iPhone using Tapatalk
1989 535i - sold
1999 M3 Tiag/Dove - sold
1998 M3 Turbo Arctic/black - current
2004 Built motor TiAg/Black - Sold
2008 E61 19T Turbo-Wagon - current
2011 E82 135i - S85 Swap - current
1998 M3 Cosmos S54 swapped Sedan - current
1998 Turbo: PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53
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