Dyno Results.....
Laughing Gas
Joined: Feb 2010
Posts: 859
Likes: 2
From: Port Orchard, WA
Ok, my max torque is 15ft-lbs less this time, than last time I dynoed 290hp.....
You don't understand. I am not talking about a specific rpm. An engine configuration will hold close to a certain max tq to max hp ratio.
I just plotted out the rpm and hp numbers from my dyno sheet to hunt for peak torque....
@ 2600rpm I have peak HP of 345, that makes torque 697 @ 2600
My peak torque is actually higher than I thought. On one pull peak torque would of occured @ 2250rpm, where I was making 325rwhp. This equates to 758.62rwtq.
You don't understand. I am not talking about a specific rpm. An engine configuration will hold close to a certain max tq to max hp ratio.
I just plotted out the rpm and hp numbers from my dyno sheet to hunt for peak torque....
@ 2600rpm I have peak HP of 345, that makes torque 697 @ 2600
My peak torque is actually higher than I thought. On one pull peak torque would of occured @ 2250rpm, where I was making 325rwhp. This equates to 758.62rwtq.
Those are some impressive numbers.
Postmaster
Joined: Dec 2004
Posts: 2,941
Likes: 30
From: Maple Valley, WA
Here is a great video Pat put together of my runs. @ 1:46 you can see all of my dyno pulls. The one weird looking curve that's shifted way to the left was me using the vehicles brakes to load the truck and try to spool my charger, I let out very early, as you can see, but it showed me what I have capable for a peak torque.
justins truck - YouTube
and pats Gasser
http://www.youtube.com/watch?v=s1wGmb5xqeA
justins truck - YouTube
and pats Gasser
http://www.youtube.com/watch?v=s1wGmb5xqeA
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Elder User
Joined: Feb 2012
Posts: 888
Likes: 2
I did all runs in 5th.
I asked Ryan if I could use my trucks brakes to try to load it up with the methanol, so I started @ a lower rpm with some brake action going..... then got into it and realized it wasn't working and stopped.
All of the other runs I just rolled into the throttle instead of WOT off the bottom.
I asked Ryan if I could use my trucks brakes to try to load it up with the methanol, so I started @ a lower rpm with some brake action going..... then got into it and realized it wasn't working and stopped.
All of the other runs I just rolled into the throttle instead of WOT off the bottom.
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Elder User
Joined: Feb 2012
Posts: 888
Likes: 2
Nvm.... Just calced the RPM, that's not possible to be a 5th gear pull..... I guess he recorded a 4th gear pull, and I don't see my brake loading run on there, must be because I didn't finish the sweep.
So yes... just north of 700tq for me.
So yes... just north of 700tq for me.
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Elder User
Joined: Feb 2012
Posts: 888
Likes: 2
Posting Guru
Joined: Sep 2011
Posts: 1,523
Likes: 5
Good runs guys. Those are good numbers and I'm sure they will be even better with more tuning. One thought I did have about the horsepower to torque ratio is that won't the ratio change slightly now that you guys have more fuel up top whereas before your fuel levels were dropping before? I'm sure it won't be a really big difference but I was thinking it could change it a bit...
Also NMB2, do you plan on changing the water/methanol injectors out to smaller ones? Less fluid would lower the chances of it putting out the fire and would be more likely to actually make more power.
Also NMB2, do you plan on changing the water/methanol injectors out to smaller ones? Less fluid would lower the chances of it putting out the fire and would be more likely to actually make more power.
Elder User
Joined: Aug 2007
Posts: 589
Likes: 2
From: Nutter Fort,West Virginia
why don't you build a diverter valve to get that big turbo to spool? :P
racin's truck topped out? looks like it hit the waist gate.
racin's truck topped out? looks like it hit the waist gate.
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Posting Guru
Joined: Sep 2011
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Good runs guys. Those are good numbers and I'm sure they will be even better with more tuning. One thought I did have about the horsepower to torque ratio is that won't the ratio change slightly now that you guys have more fuel up top whereas before your fuel levels were dropping before? I'm sure it won't be a really big difference but I was thinking it could change it a bit...
Also NMB2, do you plan on changing the water/methanol injectors out to smaller ones? Less fluid would lower the chances of it putting out the fire and would be more likely to actually make more power.
Also NMB2, do you plan on changing the water/methanol injectors out to smaller ones? Less fluid would lower the chances of it putting out the fire and would be more likely to actually make more power.
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