Revup on DynoDynamic 450 Twin
09-21-2006, 01:35 PM
#4
If the DD is setup per DD's instructions, they tend to read about 7-13% lower than a dynojet. If the shop uses "additional" correction factors, then the numbers might be the same as a dynojet. I would ask them about this.
On our dyno, the rev-up engines make about 225whp on our Dyno Dynamics dyno. I imagine this would be closer to 250whp on a DynoJet.
In regards to gear, for a comparison test, i would try to use 5th gear. You could ask him to make 2 passes in 4th gear, and 2 in 5th, and see if there are any differences.
Hope that helps.
On our dyno, the rev-up engines make about 225whp on our Dyno Dynamics dyno. I imagine this would be closer to 250whp on a DynoJet.
In regards to gear, for a comparison test, i would try to use 5th gear. You could ask him to make 2 passes in 4th gear, and 2 in 5th, and see if there are any differences.
Hope that helps.
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09-22-2006, 05:54 AM
#8
Originally Posted by Armitage
I made 260whp on MRC's DD bone stock. I think mine was done in 5th gear.
09-27-2006, 01:29 PM
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Originally Posted by Rick06Z
What do you guys think about the following A/F numbers? Does it need to be leaned out??
These are some numbers from Run 2: 11.6 (@2K), 12.8 (@2.5K), 11.6 (@3K), 11.7 (@3.5K), 12.1 (@4K), 11.7 (@4.5K), 11.7 (@5K), 11.5 (@5.5K), 11.3 (@6K), 11.1 (@6.5K) and 10.8 @7K
Couple of questions: How will MREV2 and 5/16 spacer affect A/F? Will HFC generally lean the car out a bit?
Thanks
These are some numbers from Run 2: 11.6 (@2K), 12.8 (@2.5K), 11.6 (@3K), 11.7 (@3.5K), 12.1 (@4K), 11.7 (@4.5K), 11.7 (@5K), 11.5 (@5.5K), 11.3 (@6K), 11.1 (@6.5K) and 10.8 @7K
Couple of questions: How will MREV2 and 5/16 spacer affect A/F? Will HFC generally lean the car out a bit?
Thanks
edited to add: Where did you get your numbers from? Tailpipe, 3r party w/b, or oem w/b's? I pretty much just use the oem's right now. I'm not sure how great they are, but tailpipe really isn't the way to go for reliable numbers either it seems.
Last edited by mikead_99; 09-27-2006 at 01:32 PM.
09-27-2006, 03:45 PM
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so for the 06 models of the G/Z the ECU adapts well to bolt on's. Reason I'm asking I was looking to getting some to adjust A/F ratio with these. I'm getting my exhaust this weekend, (HKS) and I already have my intake. But I was planning on running HFC's and Header soon too. With the HFC and Header will the car run too lean to drive around safely, and can A/F be controlled by some simple like the Apex VAFC, tempereraly till a stand alone or piggy back is added.
and how do you subscribe to the thread. thanks
and how do you subscribe to the thread. thanks
Last edited by jdmeg21; 09-27-2006 at 03:48 PM.
09-28-2006, 12:50 PM
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Originally Posted by Rick06Z
Will have my 06 Z dyno'd next week on a DynoDymanic for a baseline and then done again after install of MREV2, 5/16 spacer, UR Crank pulley and Stillen engine dampner.
The shop doing the dyno will not be doing install and the cost of the dyno's is expensive (hence not doing dyno on MREV2 alone). I searched and read numerous threads on dyno's, but still have a couple of questions:
1) it sounds like numbers on a DynoDynamic will be lower then some other types of machines? What range of HP/TQ should I expect on an 06 rev-up on a DynoDynamic (just say stock) (I understand all dyno's will be different and there are other factors, ie. air temps, etc).
2) what is the best gear to have the dyno done? If the shop uses a different gear, does it really matter as long as my before and after are done in the same gear?
Thanks for any help.
I will post up my before and after results with details of my baseline car.
The shop doing the dyno will not be doing install and the cost of the dyno's is expensive (hence not doing dyno on MREV2 alone). I searched and read numerous threads on dyno's, but still have a couple of questions:
1) it sounds like numbers on a DynoDynamic will be lower then some other types of machines? What range of HP/TQ should I expect on an 06 rev-up on a DynoDynamic (just say stock) (I understand all dyno's will be different and there are other factors, ie. air temps, etc).
2) what is the best gear to have the dyno done? If the shop uses a different gear, does it really matter as long as my before and after are done in the same gear?
Thanks for any help.
I will post up my before and after results with details of my baseline car.
Hello Rick!
The older Dyno Jet 248 (most common) are 15% to 17% higher than Dyno Dynamics. The newer Dyno Jet products out on the market are 12% to 15% higher than the Dyno Dynamics numbers.
As far as what gear they tested the car in on that dyno... it does not matter.
A Dyno Dynamics dyno actually physically measures power output (torque). So the gear the car is tested in does not matter. The output will be the same in 3rd, 4th or 5th.
On a Dyno Jet 248 the dyno most people are used to seeing vehicles run on. All acceleration testing needs to be done in a 1 to 1 ratio normally 4th gear on most cars. The reason being is that the acceleration rate of the roller is being measured and changing gear ratios will change the acceleration rate of the roller thus effecting the calculation of power output on a Dyno Jet.
I hope this helps my friend.
Chris Macellaro
