I did state that drivetrain loss is not linear; however, we are dealing with an inexact measurement at best. That's why we're talking "estimations". Please note that I used the term "conservative" estimates. As power increases, so does the loss, I realize this. But, I'd be suprised if the loss increases much more than a few percent. In my preference, I'd much rather underestimate crank hp than overestimate it and look like a dork. In performing these estimates, I'd use a baseline off each type of dyno (based on stock whp vs bhp) that is only applicable to that dyno.

Also, the DD's have a weather station built-in to get current pressure and temp. Using the SAE's STP conversions will help keep the numbers honest and cut down (NOT eliminate) on the variation. If the DJ's require the operator to try and figure this out on their own and select the right correction factor; well, that doesn't help keep the numbers honest (with some tooners).

 

Thats funny, in a previous post regarding the vishnu ohlins you specifically stated that it pains you to say anything positive about vishnu and any of its products.

 

O'RLY?

Warrtalon
Posts: 16,524

If you're trying to make me laugh myself to death, it just might work.


Edit PS: Nice job dodging the technical comparo showing Porsche output I brought to the table.
I still don't understand why you're posting in this thread?

 

I've never seen anyone so certain of knowing something. Gotta tip my hat off to Warrtalon. You go boy!

 

Noize, is the V400 this thread about the one you have in your sig. If so you only make 300WHP with a 9, I dont see how you can lose 100HP through the drivetrain. Not trying to stir anything up I am just curious about your numbers or the dyno you were on, they seem kinda low for the claimed 400hp.

 

Its not about my car. Its about a magazine article and the marketing name of a Vishnu package.

As far as the dyno numbers and loss through drivetrain, read the whole thread about what stock Evos and Porsches are making on this same dyno and tell me what you think.

 

never doubt the man...NEVER!

 

Can we get back to the frickin' topic here?

Shiv, you re-visited this thread and didn't answer teh questions about your product and information on your site.

Thank you.

 

The horsepower thing has already been answered.

You went to the incorrect place on his website, and the magazine article had a misprint. I showed you the correct link for the v400: http://www.vishnutuning.com/evoIX_Stage1_v400.htm

$750 pays for the basic IX flash. Its the v380 if you have nothing else in mods, v400 if you have a full exhaust + DP already.

The passive boost emulator is a bleeder tube with a pin-sized hole you put inline right next to where you extract the pill at the factory BCS. It increases boost pressure by bleeding off a tiny amount of boost.


Any more questions?

 

Nope, sorry, not the wrong page on the website. I went to the one on the flash for $750. It states 100-130hp depending upon application. There's no V-anything name for this product.

Remaining questions:

Does it change tune based on octane of last fill-up as implied on that page?

And I have one really, really good, telling question:

WHERE DID THE DYNO GRAPH GO THAT WAS ON THAT PAGE? IT WAS THERE WHEN I WROTE THAT REPLY AND IT'S *GONE* NOW!


This whole topic smells and smells badly. That behavior's cinched it. Along with Shiv visiting this thread and NOT addressing my questions.

Cute, real cute.

I've never been a Vishnu-basher, but this all, as I said, smells really, really badly.

Way to go, Vishnu.

 

No, you got it backwards. As power goes up, the amount of drivetrain loss decreases proportionally, or in other words, the percentage of loss decreases.

Also, DD's get the correction factor auto-calculated based off conditions just like a Dynojet, but you can choose which of the many correction factors you want - they are all different. The CF that the DD calculates is WRONG for an Evo. Here in the Springs, it reads 1.30-1.32 CF due to the barometric pressure. If I actually used that number, I'd be claiming 370+ whp on a DD at 6800', which is beyond absurd. Instead, I cut that in half for a somewhat reasonable correction for altitude, but it's still just a guess.

 

???? How do you figure this? Your pumping losses (oil, drivetrain fluid) increase as do your frictional losses (gear contact). You're at the point of having to show me some real engineering proof here.

 

You're so full of hate that you don't understand what in the crap you're talking about.

The link you provided is just the link to Xflashing (reflashing) the Evo IX. You can get the reflash for anything, even the v550 Stage III with race manifold and GT3076R turbocharger. Here: http://www.vishnutuning.com/evo_Stage3_v550.htm

That's obviously why it says: "Depending on application" And that's where you'll get 130 HP crank from a reflash. Easily.

1) Learn how to read.
2) Learn basic website navigation.

The link you've provided can be obtained from going to the site and going this route:
Products>Engine Management>ECU reprogramming>Evo IX Xflash

Again, LEARN HOW TO READ. You're linking a spot for a reflash, which means you can use any of their packages for the through the mail flash. If you're going to an event/dyno day, that Xflash can be used for practically anything, as long as the ECU can handle the injectors thrown at it.

The graph isn't gone at all. Instead, its in the proper place that you obviously keep refusing to click: http://www.vishnutuning.com/evoIX_Stage1_v400.htm

Also, to address your hang up on the octane thing. The link you provided from Vishnu's website states this: "Each remapped ECU carries over a decade of engine management mapping experience and is the result of extensive in-house dynamometer and road testing. XFlash offers a higher rev, boost and speed limits as well as carefully revised boost, and high and low octane fuel and spark advance tables. We also offer safe and effective calibrations for a variety of engine configurations and octane levels. All future re-mapping is free of charge if upgrading with Vishnu components. Expect gains of 100-130hp depending upon application."

What it means is this: You can be mapped for 91 or 93 octane. The ECU has multiple maps for high and low octane. If the knock sensor sees that there is either too much boost or bad gas, it will jump to the "low octane" map. This is no big secret, other than the values in the map are different than stock and set to Vishnu specifications. Moreso, these multiple octane and timing maps COME LIKE THIS IN THE EVO FROM THE FACTORY.

Learn about what you are trying to bash before you bash it. Anyone with half a brain that reads my reply can see that you are just trying to smear mud and can't navigate a simple website to save your life.

Way to go, KazzEvo8.

 

Man - I'll be bummed if I don't have 400hp at the crank

We all need to move on to the next thread - this is another bad one

 

That HATER-ADE is like crack. Once they get a taste they become addicted to that **** and then the blinders get put on. Porsche dyno results are irrelevant, and so are your multiple explanations of how dd dynos read low. Its like trying to have an argument with a brick wall.