Dyno testing oil...
- Thread starter Intelman34
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Well, this is something to read for all the naysayers, claiming that dino is so much better than synthetic... Allthough it isn't so scientific, it gives a good indication what is really happening in an engine(and the difference between a good synthetic and dino). And, as I have said before, I will not use Mobil1. This would have been even more interesting if the oils were in use for some 50 hours, doing dyno pulls every 10 hours. Guess there would have been even more differences. However, these tests cost a lot, so we are lucky that someone is doing this. This also indicates that the best oils will save you some money at the gas station, if you drive the same way as when using dino. I think this is interesting, and something to considder when changing your oil next time. I guess there will be a lot of noise in the dino-camp now, but it doesn't make their choise of oil any better now, than before. Maybe more people will open their eyes for the advantages of synthetics? We'll see.
Fun exercise but unfortunately that is all it is...fun. Our GTO will put down numbers that vary that much without changing anything! Just the dyno caveats.....I wouldn't base any lube decision on a dyno pull.
Your modified LS2 GTO also makes a lot more power than a stock 350Z so the variations will be greater.
408 Stroker....but doesnt matter
No the power deltas on the Z are within accepted variations on the same car the same day same dyno without any changes...they could have just done the same thing without changing any oil and would have close to the same results. Betcha
No the power deltas on the Z are within accepted variations on the same car the same day same dyno without any changes...they could have just done the same thing without changing any oil and would have close to the same results. Betcha
I haven't seen one of these dyno pull "test" that Royal Purple hasn't done very well...I also haven't seen one done by a entity not a Royal Purple dealer. Including this one.
But hey....I should have just kept quiet...if you guys glean something from this then by all means good! I've spent hundreds of hours on and around the dyno...I've seen numerous dyno's be calibrated by the "factory" rep...I've spoken with and been involved in many dyno tunes and runs and frankly am aware of the variables and inconsistencies of these machines.....that is why us old guys call these fella's who whip out their dyno pulls as gospel...dyno queens...The track and ET/Trap Speeds/ on the road MPG and UOAs etc. tell us what works and what doesnt....not a dyno.
And for the record I think Royal Purple Racing oils are excellent oils.
http://www.joegibbsracingoil.com/oiltech.php
Here are some dino runs between Joe Gibb's, RL, RP and M1R in Busch NASCAR engines.
If higher HT/HS give you LESS Hp, than the RL won't do that well. IMO. I believe this is why RL can get away with low viscosity and still have good protection.
Here are some dino runs between Joe Gibb's, RL, RP and M1R in Busch NASCAR engines.
If higher HT/HS give you LESS Hp, than the RL won't do that well. IMO. I believe this is why RL can get away with low viscosity and still have good protection.
So far:
Pennzoil non syn = 225hp, 220 torque
Geddy syn = 232hp, 224 torque
M1 = 233hp, 217 torque
Amsoil = 237hp, 224 torque
RP = 242 hp, 227 torque.
Looks like changing to synthetic is a cheap way to gain horsepower. No surprise here, been that way for 35 years.
Pennzoil non syn = 225hp, 220 torque
Geddy syn = 232hp, 224 torque
M1 = 233hp, 217 torque
Amsoil = 237hp, 224 torque
RP = 242 hp, 227 torque.
Looks like changing to synthetic is a cheap way to gain horsepower. No surprise here, been that way for 35 years.
Quote:
http://www.joegibbsracingoil.com/oiltech.php
Here are some dino runs between Joe Gibb's, RL, RP and M1R in Busch NASCAR engines.
If higher HT/HS give you LESS Hp, than the RL won't do that well. IMO. I believe this is why RL can get away with low viscosity and still have good protection.
I also get a kick out of the joegibbs racing test. The graphs on a "normal" RPM range make RP look pretty good.
20hp from changing the oil type
Yes, it is a bit hard for the average american to understand this. This could be because of the massive advertising, telling you that dino+3000mile OCI, is the wholy grail. Then, when real tests is showing otherwise, most people react the way that they denie that this can happen at all.
SargeGTO - I'm not buying these massive HP increases from oil type, either.
Something isn't right.
I also have a lifetime of empirical and vicarious experience which tells me that it just doesn't work that way.
They are all fine oils, I am not slamming anyone's product.
Something isn't right.
I also have a lifetime of empirical and vicarious experience which tells me that it just doesn't work that way.
They are all fine oils, I am not slamming anyone's product.
Patman
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I agree with Sarge, I've seen many dyno runs and the numbers can vary a lot from one run to the next with zero changes. Another thing to remember is that a lot of computer controlled vehicles will show big changes in power just based on their coolant and/or intake air temperature. So if you make your first run with the engine hot, then change the oil and the engine cools down, the next run is obviously going to show more power. A lot of power can be gained if on the first run your computer is pulling out 6 or 7 degrees of timing, but then on the next run it's not pulling out any.
But a dyno pull targeting RWHP from a lubricant or additive is not a "real test" at all. Look at the Tornado dyno pulls. You really believe installing a Tornado in your air intake tube will create more RWHP? In a fuel injected car?
Oh well.....I'll just stay out of this thread as I've shared my thoughts on the subject.
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