# Put car on dyno..... **URL:** \ **Category:** SON240sx Automotive\ **Created:** [April 28, 2007, 9:32am UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014 "2007-04-28T09:32:46Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![AWDdrift](https://avatars.discourse-cdn.com/v4/letter/a/9de0a6/32.png) [@AWDdrift](https://forums.speedlife.net/u/AWDdrift)\ **Post date:** [April 28, 2007, 9:32am UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/1 "2007-04-28T09:32:46Z")
I had a chance for a free pull a few weeks ago. 241 @ the wheels. No torque reading though as the rev. had no signal. gt2871r @ stock boost for this turbo (12psi) Apexi PFC with a Empathy base tune I downloaded 740cc injectors z32 mafs ect… Can’t wait to get this thing tuned by Dan. If I ever get around to calling him… Sorry Dan!! ---
**Author:** ![S13GG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/s13gg/32/5506_2.png) [@S13GG](https://forums.speedlife.net/u/S13GG)\ **Post date:** [April 28, 2007, 9:38am UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/2 "2007-04-28T09:38:09Z")
7psi… injectors/MAFS? you should make serious JAM after you have a date with Dan… ---
**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\ **Post date:** [April 28, 2007, 11:18am UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/3 "2007-04-28T11:18:02Z")
gt2871s base actuator is around 11-12psi car is def missing some power though ---
**Author:** ![atutt](https://avatars.discourse-cdn.com/v4/letter/a/c4cdca/32.png) [@atutt](https://forums.speedlife.net/u/atutt)\ **Post date:** [April 28, 2007, 1:38pm UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/4 "2007-04-28T13:38:39Z")
You can do the math and figure out the torque… If I can find the formula I’ll post it… ---
**Author:** ![sidewayz240](https://avatars.discourse-cdn.com/v4/letter/s/e99b99/32.png) [@sidewayz240](https://forums.speedlife.net/u/sidewayz240)\ **Post date:** [April 28, 2007, 1:44pm UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/5 "2007-04-28T13:44:36Z")
> [@So let's say you steal a lawnmower..](https://forums.speedlife.net/t/so-lets-say-you-steal-a-lawnmower/12342/7): > > You can do the math and figure out the torque… If I can find the formula I’ll post it… Torque = 5252 \* horsepower / RPM Thats will give you an estimate of torque post your numbers after Dan finishes up with it. ---
**Author:** ![roast](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/roast/32/5498_2.png) [@roast](https://forums.speedlife.net/u/roast)\ **Post date:** [April 28, 2007, 7:27pm UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/6 "2007-04-28T19:27:20Z")
> [@So let's say you steal a lawnmower..](https://forums.speedlife.net/t/so-lets-say-you-steal-a-lawnmower/12342/7): > > You can do the math and figure out the torque… If I can find the formula I’ll post it… > [@FS: 91 Mitsubishi Montero 4X4 (Get it out of here)](https://forums.speedlife.net/t/fs-91-mitsubishi-montero-4x4-get-it-out-of-here/12344/4): > > Torque = 5252 \* horsepower / RPM > [@FS: 06 scion tc \*PIX\* 15,700 New Price!](https://forums.speedlife.net/t/fs-06-scion-tc-pix-15-700-new-price/12133/23): > > I had a chance for a free pull a few weeks ago. > > 241 @ the wheels. No torque reading though as the _rev. had no signal_. I guess we’ll have to wait for a good tune from ol’ Danno before we get some real numbers! ---
**Author:** ![Happy240sx](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/happy240sx/32/5515_2.png) [@Happy240sx](https://forums.speedlife.net/u/Happy240sx)\ **Post date:** [April 28, 2007, 8:29pm UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/7 "2007-04-28T20:29:06Z")
We can do better 🙂 ---
**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\ **Post date:** [April 29, 2007, 10:11am UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/8 "2007-04-29T10:11:40Z")
I would think that your reading was 241 torque, as that is what the dyno measurs. and you couldnt calculate your HP because you didnt have RPM I could be wrong of course but I always was under the impression the dyno measured torque ---
**Author:** ![Happy240sx](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/happy240sx/32/5515_2.png) [@Happy240sx](https://forums.speedlife.net/u/Happy240sx)\ **Post date:** [April 29, 2007, 4:18pm UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/9 "2007-04-29T16:18:09Z")
> [@Sasha (Turbo)"](#): > > I would think that your reading was 241 torque, as that is what the dyno measurs. and you couldnt calculate your HP because you didnt have RPM > > I could be wrong of course but I always was under the impression the dyno measured torque A dynapack measures TQ…all others do not…they calculate TQ based on the time it takes to move a known mass x distance. A Dynojet, for example, knows the weight and diameter of it’s drum. You then tell it you want your car to run from 2000rpm to 7000rpm (via an ignition pickup) and by measureing the time it takes to do that, can derive work done (or TQ) ---
**Author:** ![AWDdrift](https://avatars.discourse-cdn.com/v4/letter/a/9de0a6/32.png) [@AWDdrift](https://forums.speedlife.net/u/AWDdrift)\ **Post date:** [April 28, 2007, 9:32am UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/10 "2007-04-28T09:32:46Z")
I had a chance for a free pull a few weeks ago. 241 @ the wheels. No torque reading though as the rev. had no signal. gt2871r @ stock boost for this turbo (12psi) Apexi PFC with a Empathy base tune I downloaded 740cc injectors z32 mafs ect… Can’t wait to get this thing tuned by Dan. If I ever get around to calling him… Sorry Dan!! ---
**Author:** ![S13GG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/s13gg/32/5506_2.png) [@S13GG](https://forums.speedlife.net/u/S13GG)\ **Post date:** [April 28, 2007, 9:38am UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/11 "2007-04-28T09:38:09Z")
7psi… injectors/MAFS? you should make serious JAM after you have a date with Dan… ---
**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\ **Post date:** [April 28, 2007, 11:18am UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/12 "2007-04-28T11:18:02Z")
gt2871s base actuator is around 11-12psi car is def missing some power though ---
**Author:** ![atutt](https://avatars.discourse-cdn.com/v4/letter/a/c4cdca/32.png) [@atutt](https://forums.speedlife.net/u/atutt)\ **Post date:** [April 28, 2007, 1:38pm UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/13 "2007-04-28T13:38:39Z")
You can do the math and figure out the torque… If I can find the formula I’ll post it… ---
**Author:** ![sidewayz240](https://avatars.discourse-cdn.com/v4/letter/s/e99b99/32.png) [@sidewayz240](https://forums.speedlife.net/u/sidewayz240)\ **Post date:** [April 28, 2007, 1:44pm UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/14 "2007-04-28T13:44:36Z")
> [@So let's say you steal a lawnmower..](https://forums.speedlife.net/t/so-lets-say-you-steal-a-lawnmower/12342/7): > > You can do the math and figure out the torque… If I can find the formula I’ll post it… Torque = 5252 \* horsepower / RPM Thats will give you an estimate of torque post your numbers after Dan finishes up with it. ---
**Author:** ![roast](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/roast/32/5498_2.png) [@roast](https://forums.speedlife.net/u/roast)\ **Post date:** [April 28, 2007, 7:27pm UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/15 "2007-04-28T19:27:20Z")
> [@So let's say you steal a lawnmower..](https://forums.speedlife.net/t/so-lets-say-you-steal-a-lawnmower/12342/7): > > You can do the math and figure out the torque… If I can find the formula I’ll post it… > [@FS: 91 Mitsubishi Montero 4X4 (Get it out of here)](https://forums.speedlife.net/t/fs-91-mitsubishi-montero-4x4-get-it-out-of-here/12344/4): > > Torque = 5252 \* horsepower / RPM > [@FS: 06 scion tc \*PIX\* 15,700 New Price!](https://forums.speedlife.net/t/fs-06-scion-tc-pix-15-700-new-price/12133/23): > > I had a chance for a free pull a few weeks ago. > > 241 @ the wheels. No torque reading though as the _rev. had no signal_. I guess we’ll have to wait for a good tune from ol’ Danno before we get some real numbers! ---
**Author:** ![Happy240sx](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/happy240sx/32/5515_2.png) [@Happy240sx](https://forums.speedlife.net/u/Happy240sx)\ **Post date:** [April 28, 2007, 8:29pm UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/16 "2007-04-28T20:29:06Z")
We can do better 🙂 ---
**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\ **Post date:** [April 29, 2007, 10:11am UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/17 "2007-04-29T10:11:40Z")
I would think that your reading was 241 torque, as that is what the dyno measurs. and you couldnt calculate your HP because you didnt have RPM I could be wrong of course but I always was under the impression the dyno measured torque ---
**Author:** ![Happy240sx](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/happy240sx/32/5515_2.png) [@Happy240sx](https://forums.speedlife.net/u/Happy240sx)\ **Post date:** [April 29, 2007, 4:18pm UTC](https://forums.speedlife.net/t/put-car-on-dyno/106014/18 "2007-04-29T16:18:09Z")
> [@Sasha (Turbo)"](#): > > I would think that your reading was 241 torque, as that is what the dyno measurs. and you couldnt calculate your HP because you didnt have RPM > > I could be wrong of course but I always was under the impression the dyno measured torque A dynapack measures TQ…all others do not…they calculate TQ based on the time it takes to move a known mass x distance. A Dynojet, for example, knows the weight and diameter of it’s drum. You then tell it you want your car to run from 2000rpm to 7000rpm (via an ignition pickup) and by measureing the time it takes to do that, can derive work done (or TQ)