Vividracing Tuning/Flash
11-19-14, 04:08 AM
#106
Yea I am not sure why it is hard for you to understand. A dyno is a tool used to measure a gain or loss in power. You aren't comparing one number from one dyno to another.
If this car made 400whp on the church dyno before, and 420whp after(5% increase) and you drove it to a dynojet and it made 380 before, and 399whp(5%), the difference is statistically unimportant. It is a fraction of a % difference. Run to run variance can be more than that on the same dyno depending on heatsoak, or any other number of factors.
Besides peak numbers we are going to see the power curve compared to stock, which is likely more important, and where most gains "should" lie if this device works as intended(big if..lol)
If anything the dynapak eliminates the variable of tire pressure, wheel size/weight, etc. That is like saying if you have wheels that remove 3% of your whp vs my wheels, your before/after is pointless.
Not to mention, this dyno is "high", that one is "low", this one "medium"... What is correct? Again, it doesn't matter. What matters is the gains before/after under as close as possible run conditions.
It is pretty much universally accepted that the delta is what is most important. You are probably one of the only people I have ever heard to try and argue otherwise..lol
If this car made 400whp on the church dyno before, and 420whp after(5% increase) and you drove it to a dynojet and it made 380 before, and 399whp(5%), the difference is statistically unimportant. It is a fraction of a % difference. Run to run variance can be more than that on the same dyno depending on heatsoak, or any other number of factors.
Besides peak numbers we are going to see the power curve compared to stock, which is likely more important, and where most gains "should" lie if this device works as intended(big if..lol)
If anything the dynapak eliminates the variable of tire pressure, wheel size/weight, etc. That is like saying if you have wheels that remove 3% of your whp vs my wheels, your before/after is pointless.
Not to mention, this dyno is "high", that one is "low", this one "medium"... What is correct? Again, it doesn't matter. What matters is the gains before/after under as close as possible run conditions.
It is pretty much universally accepted that the delta is what is most important. You are probably one of the only people I have ever heard to try and argue otherwise..lol
I can't wait to see if it works or not.
11-19-14, 06:00 PM
#111
Lol every freaken tune thread. I'm doing this hoping to help out the community. If it works, wonderful; if it doesn't, ohh well. I'll try to get my money back then. I have always been wanting to dyno my car anyways. 107k miles lightweight rotors and wheels and tires; let's see what my car is still capable of making.
Isn't this pretty much what HG Motorsports was going on about with their "tune", but just didn't have the cases in stock..
11-19-14, 08:44 PM
#112
Good for you Khoa! I passed when they asked if I wanted to test this out for them. Hope all goes well, for the sake of helping the community you got nothing to lose.
Isn't this pretty much what HG Motorsports was going on about with their "tune", but just didn't have the cases in stock..
Isn't this pretty much what HG Motorsports was going on about with their "tune", but just didn't have the cases in stock..
11-20-14, 12:52 AM
#113
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Yea I am not sure why it is hard for you to understand. A dyno is a tool used to measure a gain or loss in power. You aren't comparing one number from one dyno to another.
If this car made 400whp on the church dyno before, and 420whp after(5% increase) and you drove it to a dynojet and it made 380 before, and 399whp(5%), the difference is statistically unimportant. It is a fraction of a % difference. Run to run variance can be more than that on the same dyno depending on heatsoak, or any other number of factors.
Besides peak numbers we are going to see the power curve compared to stock, which is likely more important, and where most gains "should" lie if this device works as intended(big if..lol)
If anything the dynapak eliminates the variable of tire pressure, wheel size/weight, etc. That is like saying if you have wheels that remove 3% of your whp vs my wheels, your before/after is pointless.
Not to mention, this dyno is "high", that one is "low", this one "medium"... What is correct? Again, it doesn't matter. What matters is the gains before/after under as close as possible run conditions.
It is pretty much universally accepted that the delta is what is most important. You are probably one of the only people I have ever heard to try and argue otherwise..lol
If this car made 400whp on the church dyno before, and 420whp after(5% increase) and you drove it to a dynojet and it made 380 before, and 399whp(5%), the difference is statistically unimportant. It is a fraction of a % difference. Run to run variance can be more than that on the same dyno depending on heatsoak, or any other number of factors.
Besides peak numbers we are going to see the power curve compared to stock, which is likely more important, and where most gains "should" lie if this device works as intended(big if..lol)
If anything the dynapak eliminates the variable of tire pressure, wheel size/weight, etc. That is like saying if you have wheels that remove 3% of your whp vs my wheels, your before/after is pointless.
Not to mention, this dyno is "high", that one is "low", this one "medium"... What is correct? Again, it doesn't matter. What matters is the gains before/after under as close as possible run conditions.
It is pretty much universally accepted that the delta is what is most important. You are probably one of the only people I have ever heard to try and argue otherwise..lol
Example:
Dyno 1 (5% difference) - 380 to 399 hp - 19 hp difference
Dyno 2 (8% difference) - 410 to 432.8 - 22..8 hp difference
11-20-14, 03:11 AM
#114
I'd have to agree with ISFPat. You're making the assumption that both methods of dyno testing will yield the same % difference when in fact it may not. The difference between the 2 methods is definitely important because both may not yield the same difference. What if Dyno 1 yields a 5% difference and Dyno 2 yields 8% difference. You will not know until both methods have been fully tested.
Example:
Dyno 1 (5% difference) - 380 to 399 hp - 19 hp difference
Dyno 2 (8% difference) - 410 to 432.8 - 22..8 hp difference
Example:
Dyno 1 (5% difference) - 380 to 399 hp - 19 hp difference
Dyno 2 (8% difference) - 410 to 432.8 - 22..8 hp difference
he knows that he will get different gains, but the difference is so small that it doesn't matter. The point from this exercise is to see if there is a delta/gain/loss of stock vs the flash.You are also looking at it the wrong way IMO, I would not look at as percentage of gain, I would look at it as crank HP gain.
A dyno is just a tuning tool anyway, I would like to see track times/vbox instead...
11-20-14, 07:44 AM
#115
If you guys want this to fail so bad then yes, you want the lowest reading dyno for the smallest difference.
In the end it is the difference that matters. You can put together your own conclusions on your favorite dyno afterwards.
In the end it is the difference that matters. You can put together your own conclusions on your favorite dyno afterwards.
11-20-14, 01:33 PM
#117
I started a new thread to get all documented dyno numbers in for those that are interested. I'll be back to the dyno after 6 days, next Wednesday, for the Vivid Racing's tuned number. Please keep the thread clean of nonsense
https://www.clublexus.com/forums/is-...ml#post8796184
https://www.clublexus.com/forums/is-...ml#post8796184
11-21-14, 08:30 AM
#118
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I'm not sure if this is the proper place to post, but I recently seen the Vividracing flash available locally in Toronto now. I won't post the link but it is on Kijiji's website if you search Lexus ISF in the GTA region. They are selling it for $750 and it appears they Copy and paste the text right from Vivid's website.
11-21-14, 08:41 AM
#119
I'm not sure if this is the proper place to post, but I recently seen the Vividracing flash available locally in Toronto now. I won't post the link but it is on Kijiji's website if you search Lexus ISF in the GTA region. They are selling it for $750 and it appears they Copy and paste the text right from Vivid's website.
