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Dinan II Reflash Dyno
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06-24-2008, 06:41 PM | #45 |
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Dinan's gain
If you look at Dinan hp vs rpm grid which also has their stock car as a comparison you can see that when Dinan got 384 wHP the stock setup was getting 329 wHP a gain of 55 wHP at their maximum level. Their dyno setup is biased high vs. most out there.
http://www.dinancars.com/assets/File...A%20EDITED.pdf So in comparison to most Dynojet stock setups showing 270-280 whp expect to get 320 -330 whp with the Dinan stage 2 ( stock plus 55 x 0.88 ( drive train loss)). It does produce + 79 hp at 4000 rpm over stock where it max's its boost at 13.2 psi. It doesn't push it's high end that much. Many Dinan dyno's get about this whp number. research what you are getting.
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06-24-2008, 06:45 PM | #46 | ||||
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06-24-2008, 06:51 PM | #47 | |
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It's just disappointing to me. When you got your car on the dyno weren't you really hoping to see at least 342 and maybe closer to 350 if you were lucky. The actual #'s have always been less than Dinan's promise. Has anyone dyno'd more than Dinan's posted #'s? |
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06-24-2008, 06:55 PM | #48 | |
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As for different companies using a more conservative or aggressive method of calculating flywheel hp, it really shouldn't matter. Because in the end its up to common sense and better judgement. Sometimes a tuner needs to ask himself, "Shouldn't a 3500lb that makes 390bhp to run quite a bit quicker than 106-107mph trap speeds?" shiv |
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06-24-2008, 06:56 PM | #49 | |
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06-24-2008, 07:05 PM | #50 |
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Kelvin, have you got the Stage 2 Rev 2 dynoed yet? Looking forward to your results.
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06-24-2008, 07:50 PM | #51 |
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The numbers are what they are. What it comes down to is your faith that the system (whatever ECU flash/piggy you are running) will work without fail. I'm a tuner at heart and would love to squeeze every bit of performance out of my 335, but cost is a major issue, both on the front and back ends. Personally, I would love to get bigger gains with v3 and for a cheaper price, but I also can't forget that I just spent $51,000 on this car. If I only spent $5k on a Honda and decided to throw in another $15k for mods, I wouldn't feel nearly as bad if the thing blew up cuz I could still afford to rebuild two entirely new cars for the same price as one 335 with mods. So for me, I'd rather spend an extra 1% of the price of my car and sacrifice a few hp in exchange for an insurance policy. I have absolutely no way of knowing whether I would ever encounter catastrophic problems in either situation, but it's something I'm OK with, and something I think all current and future Dinan owners should accept if/when they choose that route.
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06-24-2008, 08:01 PM | #52 | |
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335whp*1.122= 375bhp only 10hp off, so not too bad. I guess its just simpler to look at the gains made to discount dyno differences. Dinan's overall gain from just a stage 2 tune according to the original published works is 342-296= +46 whp gain sooo... Has anyone seen a 46 whp gain or more? Last edited by Dr_Dirt; 06-24-2008 at 08:19 PM.. |
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06-24-2008, 09:21 PM | #53 | |
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My numbers once again: Dyno Run 1: 328.2rwhp; 349.2rwtq Dyno Run 2: 328.9rwhp; 359.4rwtq Dyno Run 3: 323.6rwhp; 361.5rwtq My average hp: 326rwhp Stock average hp: 274rwhp Difference between the two: 52rwhp In conclusion, 52rwhp > 46rwhp But as you can see, the rwhp varies widely, partially due to different output of each individual engine, partially due to different dyno machines, and partially due to elemental factors like temperature, humidity, and altitude. So really, the fact that some people are getting 15rwhp below what Dinan advertises does not warrant an accusation of fraud. Like someone else said previously, the numbers are what they are...
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06-24-2008, 09:38 PM | #54 | |
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It is pretty obvious. Also pretty shady. |
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06-24-2008, 09:46 PM | #55 | |
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06-24-2008, 09:46 PM | #56 |
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06-25-2008, 01:28 AM | #59 |
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I'm not interested in the tuning war it seems a select few have with each other, and issues with price and warranty are things that most of us factor personally into our decisions of which route to take with our cars. I am not as technical as some of you are with the tunes ( although I am learning lots) but I will say that I am not as impressed with the Dinan performance gains as I was hoping to be. That us just my personal opinion not meant to insult anyone.
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06-25-2008, 02:55 AM | #60 | |
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to check my math 368 crank - 0.089 * 368 = 335 at the wheel (i rounded by 3/10th of a hp). quick way to do it is 335 wheel /.9 = 368 crank. |
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06-25-2008, 07:46 AM | #61 | |
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http://www.e90post.com/forums/showthread.php?t=106285 More than well documented with crappy South Florida heat and humidity. I have slacked and been unable to dyno the Stage 2 revision to compare to the base and the original flash but I will try to get it done this weekend (though I have been crying wolf for 3 weeks now)... KP |
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06-25-2008, 07:52 AM | #62 | |
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When converting up from whp to bhp use the bhp = (whp * 1.122) When converting down from bhp to whp use the whp = (bhp * 0.089) |
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06-25-2008, 08:12 AM | #63 | |
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Hopefully someone will do a base dyno before they get their Dinan tune so we get some more data. |
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06-25-2008, 10:09 AM | #64 | |
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06-25-2008, 11:22 AM | #65 | |
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Hopefully the revision results are just as good. |
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06-25-2008, 01:18 PM | #66 |
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here is the guys dyno with atage 2 and the 328whp and 360wtq.This is a bone stock car with dinan stage 2 ONLY and 93 oct.Shiv this dyno is SAE corrected and you know well it would of made a few more donkeys if it were in std.
speaking of stds,why are you infecting posts about other products,you are simply trolling this thread. the car made almost 330whp SAE in 99d weather,if this was done when all your glory dynos were done it would of made a few more,lets all agree now that it would of made 5 more whp in 70d weather and then add another 5 more whp because its not in std like all your dynos and you get what? 340whp,pretty close to what dinan states right?Ohh and that torque would have been way over the 370 mark also. Add a free flow exh and the numbers will get even closer to there marks. All this with a warenty too anyway here is the dyno. bone stock other than tune,SAE,99dF,small carpet fan and still busts out 330whp |
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