xx_D6_xx Member 73 Member For: 12y 4m 16d Gender: Male Location: Adelaide Posted 02/01/13 11:18 AM Share Posted 02/01/13 11:18 AM Hey guys, Building my XR6T BA MkII, im aiming for 330kw... im installing a big PWR trans cooler in the hope it will keep the box going until I can save for an upgrade. My question is: How much can the stock 4spd gearbox take before it pegs out?CheersDaimo Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 2m 6d Gender: Male Location: Perth Posted 02/01/13 11:22 AM Share Posted 02/01/13 11:22 AM less than 330, could be 270, could be 278.4 nobody really knows.... Link to comment Share on other sites More sharing options...
xr6t_ute Donating Members 2,281 Member For: 17y 5m 4d Gender: Male Location: south east suburbs Posted 02/01/13 11:39 AM Share Posted 02/01/13 11:39 AM Mine went at 310ish, actually it lasted 6mnths when I purchased it. Link to comment Share on other sites More sharing options...
Backmarker Member 46 Member For: 14y 8m 12d Gender: Male Location: Dubbo Posted 02/01/13 03:33 PM Share Posted 02/01/13 03:33 PM 327rwkw and 2 weeks had lathed my bands and drums to a nice metallic paste in the bottom of the box. Beefy Box before Beefy Engine if I could do it all again. Link to comment Share on other sites More sharing options...
Bonjaz Donating Members 1,841 Member For: 15y 11m 21d Gender: Male Location: CQ Posted 03/01/13 12:14 AM Share Posted 03/01/13 12:14 AM mates stock ute blew doing a 3 point turn...good luck 1 Link to comment Share on other sites More sharing options...
Kosij Donating Members 2,045 Member For: 13y 3m 19d Gender: Male Posted 03/01/13 03:38 AM Share Posted 03/01/13 03:38 AM 310rwkw for 8months! As soon as I went 340 BANG!Box won't last being standard I got a new box and stally for $2750 delivered with 12monts warranty good for 400rwkw! Hasn't missed a beat with 385rwkw!!! Link to comment Share on other sites More sharing options...
xx_D6_xx Member 73 Member For: 12y 4m 16d Gender: Male Location: Adelaide Posted 07/01/13 02:26 PM Author Share Posted 07/01/13 02:26 PM haha so im basically f*cked? what gearbox have you guys found to work the best? in terms of performance? price and installation? Link to comment Share on other sites More sharing options...
Bonjaz Donating Members 1,841 Member For: 15y 11m 21d Gender: Male Location: CQ Posted 07/01/13 08:29 PM Share Posted 07/01/13 08:29 PM If your aiming for under 400kw then I would get the 4sp built properly by someone that knows what they are doing and it should be fine 1 Link to comment Share on other sites More sharing options...
xr6t_ute Donating Members 2,281 Member For: 17y 5m 4d Gender: Male Location: south east suburbs Posted 08/01/13 12:22 AM Share Posted 08/01/13 12:22 AM Your best to get a cooler fitted for one,next thing is some tuners can also kill the box itself, not every tuner can make these boxes last very long, also take it to a trans shop that has done quite a few of them.Search the forum or ask people that have had 4 speeds rebuilt.Bayswater transmissions and Yarra Valley are the only 2 you can use with confidence in Melbourne.Mines still going after 5 years, only broke the planateries middle of the last year and it was a $600 fix with parts and labour, nothing else was replaced as its still in great condition. Link to comment Share on other sites More sharing options...
Mr_4.0 Member 1,096 Member For: 13y 10m 10d Posted 08/01/13 07:01 AM Share Posted 08/01/13 07:01 AM There's heaps in the tune!!But a good set of planetaries, good valve body and good servo will help the BTR hold a lot of power. Link to comment Share on other sites More sharing options...
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