xx_D6_xx Member 73 Member For: 12y 9m 24d 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 https://www.fordxr6turbo.com/forum/topic/83422-ba-mkii-xr6t-stock-4spd-auto-whats-the-breaking-point/ Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,332 Member For: 19y 7m 15d 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 https://www.fordxr6turbo.com/forum/topic/83422-ba-mkii-xr6t-stock-4spd-auto-whats-the-breaking-point/#findComment-1343696 Share on other sites More sharing options...
xr6t_ute Donating Members 2,281 Member For: 17y 10m 12d 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 https://www.fordxr6turbo.com/forum/topic/83422-ba-mkii-xr6t-stock-4spd-auto-whats-the-breaking-point/#findComment-1343705 Share on other sites More sharing options...
Backmarker Member 46 Member For: 15y 1m 20d 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 https://www.fordxr6turbo.com/forum/topic/83422-ba-mkii-xr6t-stock-4spd-auto-whats-the-breaking-point/#findComment-1343794 Share on other sites More sharing options...
Bonjaz Donating Members 1,841 Member For: 16y 5m 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 https://www.fordxr6turbo.com/forum/topic/83422-ba-mkii-xr6t-stock-4spd-auto-whats-the-breaking-point/#findComment-1343854 Share on other sites More sharing options...
Kosij Donating Members 2,045 Member For: 13y 8m 27d 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 https://www.fordxr6turbo.com/forum/topic/83422-ba-mkii-xr6t-stock-4spd-auto-whats-the-breaking-point/#findComment-1343947 Share on other sites More sharing options...
xx_D6_xx Member 73 Member For: 12y 9m 24d 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 https://www.fordxr6turbo.com/forum/topic/83422-ba-mkii-xr6t-stock-4spd-auto-whats-the-breaking-point/#findComment-1346148 Share on other sites More sharing options...
Bonjaz Donating Members 1,841 Member For: 16y 5m 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 https://www.fordxr6turbo.com/forum/topic/83422-ba-mkii-xr6t-stock-4spd-auto-whats-the-breaking-point/#findComment-1346184 Share on other sites More sharing options...
xr6t_ute Donating Members 2,281 Member For: 17y 10m 12d 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 https://www.fordxr6turbo.com/forum/topic/83422-ba-mkii-xr6t-stock-4spd-auto-whats-the-breaking-point/#findComment-1346272 Share on other sites More sharing options...
Mr_4.0 Member 1,096 Member For: 14y 3m 18d 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 https://www.fordxr6turbo.com/forum/topic/83422-ba-mkii-xr6t-stock-4spd-auto-whats-the-breaking-point/#findComment-1346469 Share on other sites More sharing options...
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