Poor Mans Typhoon

[maximum_velocity]

  geea said:

(Yes I'm waiting for multiple almost smartarse replys about the start of my post).

Geea.

<{POST_SNAPBACK}>

Enough said

[TBO240]

craig go here this will help with your shift point http://www.datsuns.com/ftp/shiftpoints95.xls its hp and pb/ft

you can subsitute your figures and the gear ratios are 2.5 1.49 1.0 0.68

[F6 UTE]

  geea said:

All auto T's are run in 3rd and manuals in 4th. They are 1:1.

Geea.

<{POST_SNAPBACK}>

soz, my bad :(

chek my post in chat for shift points v torque.

[profrat]

I appreciate the graphs Gooza. Thanks.

But....

I still don't know the answer to my question.

It is clear that editing a stock 'T' can get at least as many KW and proably more than a Typhoon.

It is not so clear what the Torque situation is to me. I understand that KW is directly related to KW and RPM so logic tells me the torque should be better as well, but I can't tell from the graphs what the comparison in peak torque is between the edited car and the Typhoon.

Little winge here: "Why are these dyno graphs always so bloody indeciperable!!!!!?????"

I deal with graphs on a daily basis and I thought I was at least average at interpreting them. These dyno graphs challege all pretense at logic. Someone in the dyno industry needs to go back to primary school and learn how to set out a graph!!!

Phew! I feel better now.....

[profrat]

Ok. I worked out that the Typhoon made 5500N (whatever that is?) of torque at between 3000 and 3500 rpm.

I can see that Gooza's car made about 7200N. What was the rpm for this?

How do these figures relate to the ones quoted by Ford in their specifications?

[C.S.I]

  profrat said:

Ok. I worked out that the Typhoon made 5500N (whatever that is?) of torque at between 3000 and 3500 rpm.

I can see that Gooza's car made about 7200N. What was the rpm for this?

How do these figures relate to the ones quoted by Ford in their specifications?

<{POST_SNAPBACK}>

Ok, heres a prettier scanned image of the Graph.

Ford spec the XR6T at 450Nm @ 2000 - 4500?? RPM, and the Typhoon at 550Nm at whatever revs, cant be bothered rereading from their website.

I would say mines averageing 5700N between 110 and 155 km/h, but have no idea that revs that is. I'll make a point of checking on the way home tonight, although not to 150 or 170 klicks

Also, I have no real idea how to relate 5700N to NM of torque.

I always just removed the trailing 0 to make it 570Nm????

Anyone.

[YOOT]

  gooza said:

  profrat said:

Ok. I worked out that the Typhoon made 5500N (whatever that is?) of torque at between 3000 and 3500 rpm.

I can see that Gooza's car made about 7200N. What was the rpm for this?

How do these figures relate to the ones quoted by Ford in their specifications?

<{POST_SNAPBACK}>

Ok, heres a prettier scanned image of the Graph.

Ford spec the XR6T at 450Nm @ 2000 - 4500?? RPM, and the Typhoon at 550Nm at whatever revs, cant be bothered rereading from their website.

I would say mines averageing 5700N between 110 and 155 km/h, but have no idea that revs that is. I'll make a point of checking on the way home tonight, although not to 150 or 170 klicks

Also, I have no real idea how to relate 5700N to NM of torque.

I always just removed the trailing 0 to make it 570Nm????

Anyone.

<{POST_SNAPBACK}>

that's not correct either, remember that torque displayed on a dyno graph is tractive effort, which is the result after the torque has been increased byt the gear ratios in the gearbox and then the diff, and finally reduced a bit buy the diametre of the tyre.

You have to calc the figure all the way back to the engine and then apply the other formula.

[profrat]

  rednut99 said:

  gooza said:

  profrat said:

Ok. I worked out that the Typhoon made 5500N (whatever that is?) of torque at between 3000 and 3500 rpm.

I can see that Gooza's car made about 7200N. What was the rpm for this?

How do these figures relate to the ones quoted by Ford in their specifications?

<{POST_SNAPBACK}>

Ok, heres a prettier scanned image of the Graph.

Ford spec the XR6T at 450Nm @ 2000 - 4500?? RPM, and the Typhoon at 550Nm at whatever revs, cant be bothered rereading from their website.

I would say mines averageing 5700N between 110 and 155 km/h, but have no idea that revs that is. I'll make a point of checking on the way home tonight, although not to 150 or 170 klicks

Also, I have no real idea how to relate 5700N to NM of torque.

I always just removed the trailing 0 to make it 570Nm????

Anyone.

<{POST_SNAPBACK}>

that's not correct either, remember that torque displayed on a dyno graph is tractive effort, which is the result after the torque has been increased byt the gear ratios in the gearbox and then the diff, and finally reduced a bit buy the diametre of the tyre.

You have to calc the figure all the way back to the engine and then apply the other formula.

<{POST_SNAPBACK}>

And this works out too.................????

[rota]

From memory, a newton meter is the amount of torque exerted by a force of 1 newton acting at a perpendicular distance of 1 meter from the specified axis of rotation.

I was of the understanding to convert from Newtons to Newton meters was to divide the amount of Newtons by 9.81 metres per second per second (ms-2).

Therefore, if you are producing 5700N on the dyno, it would be safe to say that you are producing 581Nm.

Then again I'm probably wrong??

[ExAreSix]

  gooza said:

  profrat said:

Ok. I worked out that the Typhoon made 5500N (whatever that is?) of torque at between 3000 and 3500 rpm.

I can see that Gooza's car made about 7200N. What was the rpm for this?

How do these figures relate to the ones quoted by Ford in their specifications?

Ok, heres a prettier scanned image of the Graph.

Ford spec the XR6T at 450Nm @ 2000 - 4500?? RPM, and the Typhoon at 550Nm at whatever revs, cant be bothered rereading from their website.

I would say mines averageing 5700N between 110 and 155 km/h, but have no idea that revs that is. I'll make a point of checking on the way home tonight, although not to 150 or 170 klicks

Also, I have no real idea how to relate 5700N to NM of torque.

I always just removed the trailing 0 to make it 570Nm????

Anyone.

  ExAreSix said:

Disregard the N reading on your chart.

Torque [lb-ft] = (HP x 5250)/RPM

So, peak power is 320hp at roughly 5200rpm?

320 x 5250 = 1680000

1680000/5200 = 323 lb-ft

323 lb-ft = 438Nm @ 5200 rpm

That won't be your peak torque though. That's your torque at peak hp. Do the calculation at 3000rpm, and see what you get.