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7M-Brisbane
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November 2002

Re: 7M-GTE MA61 rear Diff choice?	Fri, 10 September 2004 03:29

The 7MGTE is a fantastic piece of machinery, with bucketloads of torque available down low. My knowledge of MA61's is a little basic, but an educated guess suggests that if your Supra was originally auto it will be 4.1:1 and if it was manual it will be 3.9:1. Personally I would recommend a change to the 3.5:1 gears from a manual RA65 Celica. As the 7M is quite a strong engine, high gearing certainly won't be a problem and if you do make this change you will end up with a better street car that you will enjoy a lot more on the highway. A more minimal change (say a difference of circa 0.2:1) IMHO would not be worth the trouble. If you do plan on lots of track work later, I'd probably recommend you keep the gearing a little lower around the 3.9:1 mark as this will give you a nice mix of ratios to choose from. Note: I struggle to see how the 7M is running out of steam and/or hitting the rev limiter at 70km/h - my MA71 had 3.7:1 gears and there were certainly no problems with the 7MGTE hitting near 100km/h in second. If this is really happening in your case then the money might be better put towards whatever's going wrong with it! That said, I'd definitely recommend the 3.5:1 diff gears as an upgrade anyway... just don't use it as a bandaid to hide an existing problem. Are you sure your speedo is accurate? [Updated on: Fri, 10 September 2004 03:48] [Report message to a moderator]

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Read Message 7M-GTE MA61 rear Diff choice? joorsh Fri, 10 September 2004 02:40
Re: 7M-GTE MA61 rear Diff choice? rob_RA40 Fri, 10 September 2004 02:45
Re: 7M-GTE MA61 rear Diff choice? 7M-Brisbane Fri, 10 September 2004 03:29
Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 03:50
Read Message Re: 7M-GTE MA61 rear Diff choice? gianttomato Fri, 10 September 2004 04:01
Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 04:12
Re: 7M-GTE MA61 rear Diff choice? justcallmefrank Fri, 10 September 2004 04:04
Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 04:20
Read Message Re: 7M-GTE MA61 rear Diff choice? Bugman Fri, 10 September 2004 03:55
Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 03:59
Re: 7M-GTE MA61 rear Diff choice? justcallmefrank Fri, 10 September 2004 04:02
Re: 7M-GTE MA61 rear Diff choice? 7M-Brisbane Fri, 10 September 2004 04:07
Read Message Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 04:17
Re: 7M-GTE MA61 rear Diff choice? rsdeo Fri, 10 September 2004 04:08
Re: 7M-GTE MA61 rear Diff choice? joorsh Fri, 10 September 2004 04:37
Re: 7M-GTE MA61 rear Diff choice? Norbie Fri, 10 September 2004 04:39
Read Message Re: 7M-GTE MA61 rear Diff choice? Norbie Fri, 10 September 2004 04:38
Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 04:40
Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 04:41
Re: 7M-GTE MA61 rear Diff choice? joorsh Fri, 10 September 2004 04:42
Read Message Re: 7M-GTE MA61 rear Diff choice? Norbie Fri, 10 September 2004 04:49
Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 05:03
Re: 7M-GTE MA61 rear Diff choice? joorsh Fri, 10 September 2004 04:45
Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 04:48
Read Message Re: 7M-GTE MA61 rear Diff choice? joorsh Fri, 10 September 2004 04:58
Re: 7M-GTE MA61 rear Diff choice? gianttomato Fri, 10 September 2004 05:04
Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 05:05
Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 05:09
Read Message Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 05:10
Re: 7M-GTE MA61 rear Diff choice? rob_RA40 Fri, 10 September 2004 05:10
Re: 7M-GTE MA61 rear Diff choice? Norbie Fri, 10 September 2004 05:20
Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 05:24
Read Message Re: 7M-GTE MA61 rear Diff choice? Norbie Fri, 10 September 2004 06:00
Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 06:58
Re: 7M-GTE MA61 rear Diff choice? Norbie Fri, 10 September 2004 10:02
Re: 7M-GTE MA61 rear Diff choice? V8_MA61 Fri, 10 September 2004 05:27
Read Message Re: 7M-GTE MA61 rear Diff choice? lumpy Fri, 10 September 2004 05:32
Re: 7M-GTE MA61 rear Diff choice? joorsh Fri, 10 September 2004 05:33
Re: 7M-GTE MA61 rear Diff choice? gianttomato Fri, 10 September 2004 05:38
Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 05:35
Read Message Re: 7M-GTE MA61 rear Diff choice? joorsh Fri, 10 September 2004 06:12
Re: 7M-GTE MA61 rear Diff choice? bbaacchhyy Sun, 12 September 2004 22:07
Re: 7M-GTE MA61 rear Diff choice? 7M-Brisbane Fri, 10 September 2004 06:22
Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 06:50
Read Message Re: 7M-GTE MA61 rear Diff choice? joorsh Fri, 10 September 2004 06:34
Re: 7M-GTE MA61 rear Diff choice? V8_MA61 Fri, 10 September 2004 06:38
Re: 7M-GTE MA61 rear Diff choice? 7M-Brisbane Fri, 10 September 2004 06:47
Re: 7M-GTE MA61 rear Diff choice? justcallmefrank Fri, 10 September 2004 06:59
Read Message Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 07:02
Re: 7M-GTE MA61 rear Diff choice? justcallmefrank Fri, 10 September 2004 07:14
Re: 7M-GTE MA61 rear Diff choice? 7M-Brisbane Fri, 10 September 2004 07:28
Re: 7M-GTE MA61 rear Diff choice? justcallmefrank Fri, 10 September 2004 07:29
Read Message Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 07:59
Re: 7M-GTE MA61 rear Diff choice? justcallmefrank Fri, 10 September 2004 08:03
Re: 7M-GTE MA61 rear Diff choice? joorsh Fri, 10 September 2004 08:24
Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 11:13
Read Message Re: 7M-GTE MA61 rear Diff choice? Norbie Fri, 10 September 2004 11:18
Re: 7M-GTE MA61 rear Diff choice? Norbie Fri, 10 September 2004 11:16
Re: 7M-GTE MA61 rear Diff choice? V8_MA61 Fri, 10 September 2004 11:20
Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 11:21
Read Message Re: 7M-GTE MA61 rear Diff choice? Norbie Fri, 10 September 2004 11:24
Re: 7M-GTE MA61 rear Diff choice? ed_ma61 Fri, 10 September 2004 11:37
Re: 7M-GTE MA61 rear Diff choice? joorsh Fri, 10 September 2004 15:14
Re: 7M-GTE MA61 rear Diff choice? Jag7799 Sat, 11 September 2004 00:05
Read Message Re: 7M-GTE MA61 rear Diff choice? joorsh Sat, 11 September 2004 15:04
Re: 7M-GTE MA61 rear Diff choice? Jag7799 Sat, 11 September 2004 23:58
Re: 7M-GTE MA61 rear Diff choice? Chris Davey Sun, 12 September 2004 01:36
Re: 7M-GTE MA61 rear Diff choice? Norbie Sun, 12 September 2004 07:32
Read Message Re: 7M-GTE MA61 rear Diff choice? THE WITZL Sun, 12 September 2004 08:21
Re: 7M-GTE MA61 rear Diff choice? Celia-Sue Mon, 13 September 2004 03:53
Re: 7M-GTE MA61 rear Diff choice? CrUZsida Mon, 13 September 2004 08:30
Re: 7M-GTE MA61 rear Diff choice? Celia-Sue Mon, 13 September 2004 08:45
Read Message Re: 7M-GTE MA61 rear Diff choice? CrUZsida Mon, 13 September 2004 08:53
Re: 7M-GTE MA61 rear Diff choice? 7mgte83 Mon, 13 September 2004 08:34
Re: 7M-GTE MA61 rear Diff choice? V8_MA61 Mon, 13 September 2004 08:36
Re: 7M-GTE MA61 rear Diff choice? Celia-Sue Mon, 13 September 2004 09:00

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