Discussion
I wonder if the T56 from another car would work better, either with a longer 5th or shorter 6th? I think the longer 5th would work better, wonder which one of these has the same input shaft length as the Monaro? http://en.wikipedia.org/wiki/Borg-Warner_T-56_tran...
1386-000-013 looks interesting...
1386-000-013 looks interesting...
Edited by anonymous-user on Sunday 8th March 18:58
Looks ideal for Stick. 
wormus said:
I wonder if the T56 from another car would work better, either with a longer 5th or shorter 6th? I think the longer 5th would work better, wonder which one of these has the same input shaft length as the Monaro? http://en.wikipedia.org/wiki/Borg-Warner_T-56_tran...
1386-000-013 looks interesting...
That's just bog standard CV8 tall ratios anyway ? Same as F-Body camaro, same ratios I've been using for 12-13 years.1386-000-013 looks interesting...
Edited by wormus on Sunday 8th March 18:58
wormus said:
I wonder if the T56 from another car would work better, either with a longer 5th or shorter 6th? I think the longer 5th would work better, wonder which one of these has the same input shaft length as the Monaro? http://en.wikipedia.org/wiki/Borg-Warner_T-56_tran...
1386-000-013 looks interesting...
Not really. A .709 5th is far more interesting.1386-000-013 looks interesting...
Edited by wormus on Sunday 8th March 18:58
Gary H 2008 said:
Not really. A .709 5th is far more interesting.
Not with a 1:1 4thThe 0.74/0.5 gears set is tall, the rpm drop with the 4-5 shift isnt great, but if you have enough and a good spread of power it isnt a big deal.
But a drop to 0.71 is pretty huge. You really will need a good powerband for that.
Of course you can try and counteract this with a very short diff..but then you lose the speed ability from 5th in the first place which makes it pointless.
May as well just choose one of the shorter 6th gears instead, 0.67 or 0.73 seem to be the shortest options in a T56 style trans
Gary H 2008 said:
Nope.
My theory was proved correct. The car was still pulling with a over a 1000 usable revs left in 5th at TR
That just proves your gearing was far too tall...otherwise you'd have made use of those extra 1000rpms and went faster.My theory was proved correct. The car was still pulling with a over a 1000 usable revs left in 5th at TR
That's like saying my 6th gear that's capable of say 300mph is ideal because after 1 mile I was still accelerating and had more rpm's to go.
stevieturbo said:
Not with a 1:1 4th
The 0.74/0.5 gears set is tall, the rpm drop with the 4-5 shift isnt great, but if you have enough and a good spread of power it isnt a big deal.
But a drop to 0.71 is pretty huge. You really will need a good powerband for that.
Of course you can try and counteract this with a very short diff..but then you lose the speed ability from 5th in the first place which makes it pointless.
May as well just choose one of the shorter 6th gears instead, 0.67 or 0.73 seem to be the shortest options in a T56 style trans
I don't think the guys with shorter 6th (Harry and Emma?) have reported amazing results. Don't think anyone has tried a slightly taller 5th though. I'm sure the FI cars would have the power to pull it.The 0.74/0.5 gears set is tall, the rpm drop with the 4-5 shift isnt great, but if you have enough and a good spread of power it isnt a big deal.
But a drop to 0.71 is pretty huge. You really will need a good powerband for that.
Of course you can try and counteract this with a very short diff..but then you lose the speed ability from 5th in the first place which makes it pointless.
May as well just choose one of the shorter 6th gears instead, 0.67 or 0.73 seem to be the shortest options in a T56 style trans
stevieturbo said:
Gary H 2008 said:
Nope.
My theory was proved correct. The car was still pulling with a over a 1000 usable revs left in 5th at TR
That just proves your gearing was far too tall...otherwise you'd have made use of those extra 1000rpms and went faster.My theory was proved correct. The car was still pulling with a over a 1000 usable revs left in 5th at TR
That's like saying my 6th gear that's capable of say 300mph is ideal because after 1 mile I was still accelerating and had more rpm's to go.
The compromise is extending the 5th with a different gearset so the theoretical limit is 192 - meaning you get closer to the reline in 5th, maximising your potential of a decent 1 mile trap.
wormus said:
I don't think the guys with shorter 6th (Harry and Emma?) have reported amazing results. Don't think anyone has tried a slightly taller 5th though. I'm sure the FI cars would have the power to pull it.
The Tranzilla 6th is basically same as my 5th. Emma's Magnum 6th is probably taller though, and 5th shorter.Gary H 2008 said:
The issue with the standard 5th ratio is you run out of puff at 164ish. Change up and you're into the ridiculously tall 6th that you will bog down, hence bouncing off the limiter in 5th was the only way to get a decent trap speed.
The compromise is extending the 5th with a different gearset so the theoretical limit is 192 - meaning you get closer to the reline in 5th, maximising your potential of a decent 1 mile trap.
Depends which box you're using and referring to as standard. My bog standard Camaro 5th at 0.74, same as CV8 Monaro will let me see over 200mph at less than 7000rpm. 202mph was hit at around 67-6800rpm a few years ago.The compromise is extending the 5th with a different gearset so the theoretical limit is 192 - meaning you get closer to the reline in 5th, maximising your potential of a decent 1 mile trap.
3.27 rear diff and 255/40x17 tyres, or now using 235/45x17. Little odds between them
TOTB last year as an example, I shifted a little early from 4th at 6500rpm as had no grip anyway. This still dropped me to around 4300rpm in 5th, that's around 130-135mph.
That's a big drop, mine can cope with it ok though. If 5th was 0.71, it'd probably drop below 4000rpm, clearly that would be very bad unless you had say a PD blower, or an engine making lots of torque at 4000rpm
The Tranzilla Jez seems to be going for now would obviously drop him right onto good strong power almost anywhere he shifts from 4th, and likewise from 5-6.
I'm just not prepared to lose my tall 6th gear as it's great for cruising.
I could easily switch to the 0.84/0.63 5/6, but I really dont see it as gaining me anything. Hell..even with the tall 0.5 6th gear...I've went looking for a 7th the odd time when driving LOL
My current gearing combo will do anything I need it to do comfortably.
EmmaJ said:
I've got a low ratio 5th and 6th. 5th tops out just over 150ish I recall on a 6200 limit and 6th will run to just over 200 if things go to plan. I just need more power.......
You must be running a fairly short diff then ?Ultimately when it comes to speed/distance, yes it is power you need. Gearing helps of course, but make enough power and gearing does become slightly less important as long as it still gives you enough for the speed/rpm you're trying to achieve.
If you arent making the power though, wont matter what gearing you have.
stevieturbo said:
EmmaJ said:
I've got a low ratio 5th and 6th. 5th tops out just over 150ish I recall on a 6200 limit and 6th will run to just over 200 if things go to plan. I just need more power.......
You must be running a fairly short diff then ?Ultimately when it comes to speed/distance, yes it is power you need. Gearing helps of course, but make enough power and gearing does become slightly less important as long as it still gives you enough for the speed/rpm you're trying to achieve.
If you arent making the power though, wont matter what gearing you have.
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