I am referencing this car and its dyno:

https://www.evolutionm.net/forums/sh...d.php?t=196374

(I wanted to create new thread and not create unecessary negativity towards other Evo owner)
I'm not trying to stir up anything nasty here but I don't understand why this car is not putting more than ~245hp down.

This is a "V390" car which from Vishnu's website says:

"Coupled with careful recalibration of the factory fuel and ignition advance tables, as well as revised rev and boost limits, we’re able to achieve a massive, dyno-proven 120-130 flywheel horsepower gain on an otherwise stock Lancer Evolution"

This car isn't exhibiting anywhere near 120-130 flywheel gain, even taking into consideration he's not using XEDE to control boost.

Why am I bringing this up? Shiv, you are going to get my money irregardless. I want premium, daily-driveable, reliable performance boosters and I trust your expertise. I was planning on getting the Xflash V390 package but if $2325 gets me 25whp I probably will have to mod more extensively. I want 300whp.

Can somebody shed some light on this subject please.

 

That car is putting down 288hp and 245tq.

 

That is what the graph is showing!

DefBringer, why would you say "You get my moner irregardless"? if all that was gained was 25whp

Very strange post

Shiv - when I see ya Friday, could I please get a little more than 25whp I'll slip ya a few extra $$$ for a few extar ponies

 

Wait, I thought the torque curve just keeps getting higher and higher with RPMs? (somebody hit me over the head)

remind me not to post when I've had too much red bull ugh

 

Assuming AWD drive-train loss of 12%
Assuming Dynodynamics to Dynojet correction of .15

390 hp at the flywheel (BHP) would be 343 AWHP.

V390 (flash, exhaust) on a IX is 300-315 on a dyno dynamics which would be 345-362 on a dynojet. Assuming the .15 correction factor.

V390 on an 8 is 280-295 or 322-339 with correction factor.

With the expected drivetrain loss of an AWD car that sounds like some good numbers to me. Yes the IX is stronger than the 8 and if you want big dyno numbers use a dynojet.

I have an 03 V390 that I dynoed on a dynojet in 05 and made 320 awhp. Now, I have a V390 with a hotside, O2 housing, Test Pipe, Lower IC pipe, and a manifold and I just made 313 on a dyno dynamics dyno. Which would be 360 on a dynojet. I think that is about right for the changes that I made, +40 with the right tune. If you want to make big power easy look at my graph with a methanol injection kit controlled by the Xede. 353 on the dynodynamics or about 405 AWHP on a dynojet.


https://www.evolutionm.net/forums/sh...d.php?t=191922


**** I am not an expert - just a customer that like to ask questions so I understand it a little too.****

I hope this helps. I have never seem Vishnu exaggerate numbers to date. I don't expect them to do that.

 

Vishnus DD reads very low. Its known as the heartbreaker lol.

 

I agree, I have never seen him exaggerate numbers. For some stupid reason I was confusing torque and hp curves. I would be happy with 320 w/ your mods with a "Straight up" v390!

 

As an FYI:

I had an '03 v390 w/hotside and did 335whp on a Dynojet w/93 octane.

 

OK, so the question has been answered.

 

Regarding your question regarding torque increasing throughout the power band.

Torque is measured directly from the dyno, and horsepower is measured as a function of torque: t= torque hp =horsepower

f(t) = hp = [(RPM *torque) / 5252] Horsepower normally* increases thoughout the powerband (not torque) unless torque is falling off quickly. With this function, torque and horsepower cross at an RPM of 5252.

 

My ears bleed whenever people say "irregardless".

The guy has an electronic boost controller, so it's not a true v390. If he were using the regular boost control from the Xede (Like Shiv said) he would have gotten even more impressive numbers to the left of 5252.

 

Mine also...Is it not regardless or irrespective?
English was never a strong point....

 

I agree with everything except the 12% drivetrain loss, a regular RWD manual tranny is about 12-15%, an auto is anywhere from 20-25% i'm guessing the AWD tranny would be about 20 % and that might be generous

 

With the DD dyno numbers it is around the mid 20% for drivetrain loss.

 

I did some more searching and found that the dyno comparisons go from .12 to .15 depending on who you talk to. This can make the numbers fluctuate.

I have heard that AWD loss is 24% as a rule. But I have also heard that EVOs (8's) are 18%Lets think about this. Most dynodynamics read 210'ish for a 2003 EVO. Which is rated from Mitsu at 276. That would be right around 24%.

Here is where my car might be...
353 awhp * .15 correction * 24% Train loss= 534 BHP
353 awhp * .15 correction * 20% Train loss= 507 BHP
353 awhp * .15 correction * 18% Train loss= 495 BHP

353 awhp * .12 correction * 24% Train loss= 520 BHP
353 awhp * .12 correction * 20% Train loss= 494 BHP
353 awhp * .12 correction * 18% Train loss= 482 BHP

WOW. those are some HUGE numbers!

353 awhp * .12 correction * 12% Train loss= 450 BHP (I think I am around here)