I love EvoM. Once again comparing dyno numbers from day to day, car to car and dyno to dyno is pretty useless.

However knowing your A/F values are spot on across the map in realtime is worth the tune IMHO.

 

Hmmm, lets see. I dynoed 247hp, 250tq stock on their Dyno with 18 psi tapering to 15 psi on a warmer day. Shameless dynos 262 hp on the same dyno with tbe and a tune on a slightly cooler day and something's not wrong with that picture? Doesnt sound right to me.

Shameless, unless it rains I'll be up there next Sat. to get re-dynoed so we'll see if something is up with your car or if they changed the settings on their dyno.

 

Shameless,

Congrat with the tune! Don't worry too much about the power. Your numbers are right along the lines with what IX's should be making on DD w/ old (low-number) software. I am sure that DSG guys did a good job on your car! They are very trustworthy guys.

 

I definitely think something is up with my car... here's some history:

I started out my mods by putting in a K&N Drop In Filter, Forge UNOS MBC, and a Helix 3" HFC and Catback. At this point, I ran an EvoScan log and used DLL to get a Dyno Chart... at the time, it was showing 269whp

My next mod was the Helix 3" DP, now EvoScan/DLL is showing 288whp

Next was my Walbro 255 and Jestr Flash, now EvoScan/DLL is showing 328whp

I logged this setup 3-4 times on different days, and got 0, 1, or 2 knock... nothing major.

I went to the drag strip and was upset to run a best of 13.2. I decided to log my car and got 5-6 counts of knock. I ran another EvoScan/DLL, and it's showing 282whp!!!!!

At this point, I was upset and confused... I thought I had bad gas or a bad tune or both... so I put on a test pipe and K&N cone filter and went to DSG yesterday and ended up with 262whp.

CAN ANYONE SHED SOME LIGHT ON WHAT THE HELL MIGHT HAVE HAPPENED????

 

I would say that your evo needs some attnetion though..... Get a Compression Test, and Boost Leak test. Check for exhuast leaks and go from there. I have never seen Matt tune an EVO, but I have seen him tune and build plenty of honda, 240s and so on. I mean for christ sake he made CHROME for OBD1 Hondas! So there is no questioning his ability. Dont be so quick to blame the tuner if you havent Doubled check your car.

 

I'm not blaming him at all!!!!!!!

I'm blaming whatever is ****ed up in my car!

 

Do you have any guages in your car? If so whats your idle vac at? does it stutter or stumble going up a hill?

 

I never said you were, reread my post. But im sorry if it came off that way, i didnt mean it like that.

 

ROK EVO, these numbers are _nowhere_ near what you'd expect on this type of dyno with these mods on a IX. Not sure where you got that idea...

You definitely don't see IXs making this power on the Buschur Mustang Dyno or Vishnu DynoDynamics, and those two read as low as any dyno in the country. I am not one to put a big emphasis on dyno numbers, but this guy already ran terribly at the track and blamed his tune, so he got a retune, but the retune was on a dyno and shows again that he has very little power. Therefore, I think something is wrong. You should not tell the guy his power is normal when it's nowhere close to normal...

That's what I've been telling him for weeks...

I also said this same thing in reference to his previous tune that he was so quick to blame...

 

I just did a compression test... 125/125/125/125 There's essentially no variance... I tried putting a few drops of oil in one cylinder to see if the pressure rose, and it didn't... exactly 125 again.

I did an oil change (my 4th in 9000mi) and replaced the plugs with factory NGK's on Thursday, so everything would be tip-top for the tune... So that's not the culprit...

I don't think it's fuel delivery because my AFR were solid where they should be after the tune...

That leaves me with what? Boost leak?

 

My o3' evo put down 229whp on a DD dyno at KTR

3" turboback and testpipe
EBC set at 20psi
NO TUNE

something is wrong shameless!

 

I may attempt a boost leak test today... I've never done one, so I've been searching around.

I may try this:

Should this be sufficient ?

 

Never heard of doing a boost leak test that way - does that actually work?

You normally pressurize through the turbo inlet like this:

http://vfaq.com/mods/ICtester.html

 

There is no such thing as a new school or old school dyno dynamics. From the factory the machines are all calibrated the same.

 

Sorry sir. Its seems that most of the shops that have recently purchased DD dynos, have the new correction factors that make the numbers more in line with the dynojets. That's what I meant by newer.

Shameless, are you sure the fuel pump is installed correctly? I'm being serious because I have seen it where the assembly was not assembled with the white piece at the top of the pump or fitted together tightly with a snap. It caused irregularities in fuel delivery. Just making sure all areas of possible error are addressed.