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Case Study: Road "Tuning" vs Dyno Tuning (Merged)

 
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Old Jan 6, 2006 | 10:11 AM
  #211  
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Originally Posted by shiv@vishnu
What are you enleaning or enrichening it with? Via reflash or piggy-back?

shiv
ECU Plus piggyback.
Old Jan 6, 2006 | 12:12 PM
  #212  
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Originally Posted by Warrtalon
I don't think that's "better." I can go wayyyyyyyyy faster on race gas than on pump gas (at least 3mph/.3s). My accomplishment that you quoted is on straight pump gas and a mail-in flash, no custom tuning. When I ran 99oct with a cat-back/safc/mbc (no cam gears, no DP, no HFC or test pipe), I hit 12.22@111, but was hitting the rev limiter in 4th at the end of every run. Yes, I had an MBC, but no one else's tuning - doesn't the Xede raise boost?
Your pump gas is 93/94 Warrtalon and u also have a 10.5 hotside on ur MR; Not to mention your gearing is a lil more advantaguous for stock turbo 1/4 mile runs.

Also where did u run? ATCO/English-Town or one of the short tracks on the East Coast. Remember Warrtalon ur 93 octane make 15+ whp over our 91 octane and the difference between 93 and 100 oct is about 15 whp.

So lets add up ur advantages and subtract Smoggy's and see what we get. Ur 05 mR wit 10.5 hotside =15 whp/tq; Smoggy's octane advantage equals 15 whp maybe. U ran on the East Coast on a well prepped track and Smoggy ran on a ill equiped ghetto track. Your car has a shorter 4th gear so more appropos for runnin good stock turbo 1/4 mile times.

U also are likely a better driver than Smoggy was at the time when Smoggy ran his car(he used to granny shift IMO).

So I think Smoggy's cars accomplshments with his stage 1 are very good and showcases a good Vishnu tune that is very much in line wit ur tune if not better.

Last edited by IE Evo; Jan 6, 2006 at 12:40 PM.
Old Jan 6, 2006 | 12:17 PM
  #213  
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Well I too just read all 20 pages, and WHEW...I'm glad I'm done reading. I come from a road racing back ground and used to use the road tune method when I was tuning my carbs on my 73 911. I would adjust the afr, drive the car and if I liked it it stayed, if I didn't I'd adjust again and go for another run. 3 years ago after having the car tuned 'perfect' from a road tune I decided to take it to the dyno to see what kind of number's I could get. I found out it was super rich and ended up making about 20whp by tuning it on the dyno.
Sure the the 911 runs on carbs and is a totally different set up than the EVO, but I learned my lesson right then and there that the only way to tune a car is on the dyno.

Off Topic Warning:
I also have a gtech pro RR that I use for road racing. However, the only thing I use it for is to measure g's. I hooked it up to the EVO and it gave me a 3.9 0-60 time, which I knew wasn't right. The g's are also not completly accurate because when you go down or up hill it things that you are accelerating or braking.

Thanks,

Last edited by 06MR895; Jan 6, 2006 at 12:21 PM.
Old Jan 6, 2006 | 12:17 PM
  #214  
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From: North Mexico (Inland Empire)
Originally Posted by Warrtalon
No, I can't figure that out. The stock ECU timing is pretty awesome, because we run so rich that there is no pulled timing. It's pretty aggressive from the factory from 5200-7500. Al bumps up the peak torque timing to stay at 7-8 from 3500-5200, which helps with providing a lot more torque. If after raising boost, adding mods, and leaning out the AFRs, a tuner can keep the timing curve as aggressive as stock when completely rich, then that's an accomplishment. What was your point?
I think his point is Al makes power by raising the Boost and really does very lil otherwise.
Old Jan 6, 2006 | 12:36 PM
  #215  
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From: Danville/Blackhawk, California
Al,

Are you going to show RPM data? And are you ever going to answer my simple request here: https://www.evolutionm.net/forums/sh...06#post2692006

It's been several months now.

Thank you,
shiv
Old Jan 6, 2006 | 12:40 PM
  #216  
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Comparing 1/4 times is a lot like comparing different dynos. There are in fact even more variables such as conditions, altitude, tires, weight reduction and also the all important driver.

If you want to compare times then do it with the same driver and the same track on the same day within a close time frame. Otherwise it is just hot air
Old Jan 6, 2006 | 12:40 PM
  #217  
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I'm honestly trying to discuss the topic here guys

Originally Posted by DynoFlash

I can promise ALL of you on BOTH sides of this argument - you wont find me posting a study of vishnu's tuning done at 4 psi less boost and comapring it to my own
First of all, I have read the thread and have NO ax to grind nor am I trying to attack anyone. My one question is why is DynoFlash saying in every post that the boost is 4 psi lower? From page one, and several times after, it has been pointed out that Shiv's boost is lower on most of the graph.


Brand Y Road Tune vs. Getting started Dyno Tune (WHP and BOOST)

Just by eyeballing this graph, the Road Tune has 17.5 psi boost at 7000 rpms and Shiv's is at 16 psi at 7000. Shiv's highest boost 1 psi higher at 3200 rpms, but the taper is pretty comparable just to my uneducated eyes.

Originally Posted by shiv@vishnu
Yep, a boost leak would cause a massive enrichment up top (where the ECU would be fueling for a MAF reading that isn't actually being consumed by the engine). In other words, there is no boost leak. Never was as evident by the results the car made on Gruppe-S's dyno a couple week backs.

Shiv
Originally Posted by shiv@vishnu
2) Regarding the inevitable boost leak claim, there are few things that one should be aware of.

First, a boost leak is essentially mechanical failure. One that will vary from run-to-run and condition-to-condition. Anyone who has ever tried to chase down a loose hoseclamp/slipped couplper will attest ot that. A car with a boost leak will not generate 100% consistent boost logs, run after run after run. Here are the back to back boost logs for the car as it came to our shop:


Does that look like a boost leak to you?

3) Also regarding boost leak claim, any such leak will play havok with calculated load and result in erratic AFR readings. This is because the leaking air is still be read by the MAF and the system is fueled accordingly. Anyone who has tuned a car with a boost leak will also be aware of this. Here are the back-to-back AFR logs of the car as it came to our shop:

And here's the AFR from 2 weeks ago as tested by Gruppe S. It is virtually identical:

And while, we're at it, here is the dyno result from Gruppe S. It is virtually identical:

There is no leak. This is fact. No amount of internet debate change change that.

-shiv
Did anyone address these points? I just don't see why DynoFlash is still saying that Shiv is getting more power due to higher boost. The road tune actually had higher peak #s than Shiv's base off-the-shelf tune (although the AUTC was not as good). Can someone help out a newbie like me?

Originally Posted by DynoFlash
It really just shocks me that the boost log from Shiv's own famous dyno shows how weak the boost was holding when he first tuned the CA car yet so many of his supporters are convinced that the tuning is the cause of the lower power delivery.

Lower the boost and you lower the power - this should be a simple concept but so alien.
...but the lower boost (Shiv) looks like it has more power. Can anyone explain in simple terms how the tunes are different (other than the obvious road vs dyno methods) or is that proprietary? Also, wouldn't it be better if a car was putting out more power on less boost as far as reliability is concerned?

Thanks,
Adam
Old Jan 6, 2006 | 12:42 PM
  #218  
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Originally Posted by shiv@vishnu
Al,

Are you going to show RPM data? And are you ever going to answer my simple request here: https://www.evolutionm.net/forums/sh...06#post2692006

It's been several months now.

Thank you,
shiv
Al is an Acronym for what? opps I don't want to get banned, and actually I like/tolerate Al.

Last edited by IE Evo; Jan 6, 2006 at 12:46 PM.
Old Jan 6, 2006 | 12:50 PM
  #219  
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Originally Posted by adam5743
First of all, I have read the thread and have NO ax to grind nor am I trying to attack anyone. My one question is why is DynoFlash saying in every post that the boost is 4 psi lower? From page one, and several times after, it has been pointed out that Shiv's boost is lower on most of the graph.


Brand Y Road Tune vs. Getting started Dyno Tune (WHP and BOOST)

Just by eyeballing this graph, the Road Tune has 17.5 psi boost at 7000 rpms and Shiv's is at 16 psi at 7000. Shiv's highest boost 1 psi higher at 3200 rpms, but the taper is pretty comparable just to my uneducated eye.





Did anyone address these points? I just don't see why DynoFlash is still saying that Shiv is getting more power due to higher boost. The road tune actually had higher peak #s than Shiv's base off-the-shelf tune (although the AUTC was not as good). Can someone help out a newbie like me?



...but the lower boost (Shiv) looks like it has more power. Can anyone explain in simple terms how the tunes are different (other than the obvious road vs dyno methods) or is that proprietary? Also, wouldn't it be better if a car was putting out more power on less boost as far as reliability is concerned?

Thanks,
Adam
Adam,
Thanks for seeing that. This is one of the reasons I get so frustrated at times when engaging in what is supposed to be a techincal discussion. I don't believe, for a second, that some people actually believe what they say (over and over again). I just feel that the community deserves more credit and shouldn't be taken advantage of in this respect. In my opinion, if a vendor to talk the talk, they better walk the walk. Unfortunately, this is not always the case and the namecalling begins-- from the parties and their supporters alike. A lot of people, like you, see this. Unfortunately, they are not usually a part of the vocal majority. There is nothing more disheartening for people to read this entire thread and conclude that it was nothing more than a schoolyard fight. Astute readers will see the points and will hopefully not feel that they have wasted their time.

Regards,
shiv

ps. Quit it IE. You're going to trigger another flame ware.

Last edited by shiv@vishnu; Jan 6, 2006 at 01:24 PM.
Old Jan 6, 2006 | 12:57 PM
  #220  
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Originally Posted by shiv@vishnu
Adam,

ps. Quit it IE. You're going to trigger another flame ware.
Okay! I have been checked.BTW, What is a Flame Ware?
Old Jan 6, 2006 | 01:21 PM
  #221  
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Originally Posted by adam5743
First of all, I have read the thread and have NO ax to grind nor am I trying to attack anyone. My one question is why is DynoFlash saying in every post that the boost is 4 psi lower? From page one, and several times after, it has been pointed out that Shiv's boost is lower on most of the graph.

Thanks,
Adam
I think Al was referring to this graph?

Old Jan 6, 2006 | 02:27 PM
  #222  
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Originally Posted by pretend-evo
Flame ware??? do you mean flame war??

so have you guys fought yet? who stole whom's lunch money?? SHiv looks kinda skinny, and i bet they don't call big Al big for nothing! but both of you are going to get detentions!

Seriously, my 7 yr. old niece behave better than you two!

Have we really learned anything from this thread? (NO! just one vendor bashing another)
(perhaps some tuners like to run more boost, slightly less timing and others less boost, but more timing?)

I am sure, both people know how to tune a car well... they wouldn't have a job if they didn't.. ... i don't think there will ever be a way to settle this...

now a little off topic,,,
WAR talon.... do you still have a DSM or are you a total evo convert???
Just to re-iterate and re-clarify

I dont have any interest in fighting anyone

I don't have any ill feelings or anger toward Shiv - however - I consider his manner in posting this kind of fellow vendor bashing thread very unprofressional - PARTICULARLY where he and I are fellow Ecutek authorized "partners" or dealers. It really makes me very dissapointed to see a fellow seller of such a fine tuning product taking such an active interest in trying to undermine another. The tune in question was a Ecutek based tune that I did and which apparently Shiv re-tuned. I regret the need to have such discussions surrounding Ecutek products as Ecutek is a very professional and diligent company and desrerves only positive refernces.

I certainly am quilty of similar actions in past years - however - I have made a significant effort to bite my tounge and just keep my mouth shut in these matters.

I don't care if Shiv chooses to practice his business in this type of manner - that is his decision - and I have to leave it to the administration and moderation on these forums as to whether or not such actions are tolerated on these forums.

The only things I can control are my 100% commitment to work hard and deliver the best tuning services as fair and resonable prices to my customers, and my decision to not jump into the cess pool of this conversation and trade insults with fellow tuners.

Thankfully, my product and reputation are sufficient to advance my business interests so I am not obliged to trade retorts with every troll on the internet who questions the results of a particular dyno tuning session.

As for Shiv - he is not someone I choose to enagage in any dialouge or discussion on any level.

I feel the need to discuss my thoughts on the general topic of road tuning , chassis dyno tuning and engine dyno tuning and i have been working on a magazine article on this subject. When I have some time I will be posting some thoughts on this general subject - however this will be a seperate thread and not inteneded as a response to or a continuation of this discussion.

Last edited by DynoFlash; Jan 6, 2006 at 02:32 PM.
Old Jan 6, 2006 | 03:40 PM
  #223  
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Originally Posted by 2literturbos
Cut that name call ish out,
Warrtalon, do you have a dyno chart of post dynoflash, I was looking at your old SAFC dynojet numbers and wondered what you ended up with after switching to flash based tuning.
-James
He got the base flash. no custom tune.
Old Jan 6, 2006 | 03:49 PM
  #224  
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I'm just curious to how much power he made after dynoflashing.
Heres my angle on this how deal, I'm a numbers man.
bla bla bla, don't mean ish if you don't have some numbers to back you up. I'm an engineer so that is how I roll, Warrtalon's 1/4 mile times are impressive, but I'm wondering what he is pulling on the dyno to get the results, mail-in or road tune.
That is the one thing that worries me about this whole situation, I'm not a nut swinger but I'm wondering what is so special about this RPM log.

-James
Old Jan 6, 2006 | 04:12 PM
  #225  
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Originally Posted by RallyRedEVO
You really should quit dodging the questions posed to you. This has nothing to do with EcuTek at all. It is a good product, true, but that is irrelevant. The discussion is about tuning ability and knowledge, or in your case the lack there of.

If you really had a leg to stand on, you would try to defend yourself instead of trying to divert the conversation to some bogus claims that Shiv has completely fabricated this entire issue. Especially when the owner of the car in question has even testified that this is not the case.

You really are pathetic; you can't have any sort of a technical discussion beyond a basic level. And those of us intelligent enough to see past the marketing you have done for yourself realize what sort of a joke you are.

At least learn to spell and develop your thoughts into intelligible written word! That alone would make this whole thread less painful.
If you want to see my writing work product you can go out and purchase the last two issues of Turbo Magazine, both of which have articles I have written. Including the current issue which covers Evo 8 ecu flashing, a subject dear to my heart.

I did not assert that Shiv "fabricated" this entire situation

I simply have stated that its my position the car had a mechaical defect "boost leak' which was the cause of the condition. Shiv's own logs show low boost when the customer came in and my logs show high boost when i was tuning it. coincidentally when the car was "corrected" by Shiv it was back to high boost. Its a simple concept really which requires no further elaberation.

What I have claimed it is that Shiv has taken advantage of the customer with a boost leak to spin it into this giant tunner attack thread and it is this specific behavior that i find objectionale.

It is like if another tuner's car came in with a spark plug disconected and was very upset that he was not making any power. If I dynoed the car, showed how bad the other tuner's power was and then reconected the spark plug and re-tuned the car I would look like a hero to the customer. When you exploit a situation like that on the internet and invlolve your attention is such a activity, IMHO, you make yourself look like a very unsavory individual.


I feel very sorry for you Vishnu customers who have nothing better to do that waste your time participating in this trivial cirucs like carnival on the Vishnu vendor forum. In this section, i find much negativity and kaos and little topics with any relationship to cars and tuning.



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