We both are, only reason because when I posted numbers/psi, everyone on facebook, said those numbers don't make sense and the turbo is being overworked. That's the only reason we are talking about it. These numbers would be fine if it was a 20 PSI tune with no spike, even a bit less torque would be fine, just worried about over working the turbo at this point with a 30 psi spike

 

Every car wont react the exact same to everyone else's mod for mod, mile for mile. Also how was the weather that day? Hot and humid? That's going to dyno differently than a dry fall day as well keep in mind. As far as the "spiking" im not sure.

 

Term has my car spiking 26 and tapering down to 24, which really hits around 21ish psi at redline. That doesn't seem right that its spiking 30 on your gauge.

and the stock boost gauge isn't super reliable but it reads the same boost that HP Tuners does from the ECU.

 

I'm not sure how we're supposed to decipher the questions/issues when random numbers from totally unrelated cars are thrown in there.

I've made my recommendation. Done.

 

Dataloggings showing 26-27 psi boost spike, and so it would make sence electronic signal getting turned into an analog gauge could appear to be 29-30 psi spiking, considering we all know these boost gauges are not 100% accurate.

 

yeah when I dynod the dyno was showing 30 psi but the boost gauge only read 25 because of my altitude and they aren't all that accurate.

 

So I just figured I would put up a quick post.

Unfortunately we did have some issues yesterday with our Dyno computer (NOT my tuning computer) and I do apologize for that... Not sure if with the crazy storms we have been getting in this area the past few days fried our computer but... In any event... I did everything I could to get a computer to run the dyno...it did take some time...but we got everything working.

As far as the tune... I just want to preface that I have and will always offer customers to return if they think there is an issue and I always will do so at no additional charge as I have offered Brandon. As you have seen as Bob copied and pasted my message to him... None of my data logs show anything higher than a spike to 26 or 27 psi boost spike and it immediately tapers down to 20-21 psi at top of the pull. Boost spikes only last for about 2-3 tenths of a second before they fall off. As we all know... these turbos do not have enough steam to hold even 30 psi for a long period...nor will they really ever hold 25 psi. Intake temps never went over 100 degrees which is excellent. I always tune cars in the most real world scenarios as possible as if you were going to be using the car on the street I.E. making multiple runs within reasonable amounts of time not allowing large periods of cool down just to show a peak number as I don't feel anyone will let their car cool down on the highway for 25 mins before running that WRX they meet on the way to the movies on a friday night.

Someone brought up timing at those spikes also which is a GREAT point and something to always watch out for...as ramping the timing in low at the start of the pull not only helps spool up but softens the effects on that spike on the bottom end.

As many of you know... our dyno has more than once been called "Heartbreak dyno" Now I don't want anyone to take this the wrong way because I am in no way doubting anyones dyno numbers at all. But I told Brandon straight up... Dyno's have multiple correction factors on them...and every dyno run can be manipulated if you have a dyno operator that is trying to "massage" numbers. On that 294 hp 35X wtq pull.... The SAE correction factor (which is the most widely accepted correction factor for a dynojet dyno) and the correction factor we always use showed 294/35X....that SAME run using the STD correction factor showed 302/378. Again I will reiterate that I am not doubting anyones power at all... I am just saying that it is safe to say that I'm sure people have been sold on a "massaged" dyno graph rather than true numbers. As it seems that it appears alot of cars running supposed less boost (even though my logs show the car is boosting right in line with what most have posted here) make 20-30 more hp and tq.

I guess the only way to solve it would be have everyone show up here and do back to back pulls with multiple cars and data logs and see what is what and see which is which (which by all means I would do anytime if a group would show up). In the end...a dyno is just a tool.... From the baseline pull to the end results the car had a great gain and in the end the car runs well and pulls hard. Car started off with a very lean AFR and it now has a nice safe one.

Hope this doesn't trigger any soft spots...just wanted to put my 2 cents in and I hope no one takes any of my comments the wrong way. And if they would like to bring the car back Brandon and Bob know that I would take a look at it again to ease any concerns at no charge.

 

well said.

 

nice to see people stand behind their worl

 

Way to many ppl think every dyno reads the same. Did you collect a baseline number with the same correction factors before the tune?

 

Thanks for the reply Fred, and I will say again that Brandon's happy, the power's great it was just the goons over at Cobalt SS Gang on facebook that were talking crap and got him nervous thinking that the turbo was in danger or something of that nature.

This is copied and pasted from Cobalt SS gang's facebook:

I posted 20PSI tune 28psi spike 294/354. Does that seem right?

Bryce Frossard Sounds like they dont have the tune dialed in correctly
Yesterday at 1:55pm via mobile ˇ Like ˇ 1

Bryce Frossard But even at 28psi spike he should be well over 300hp
Yesterday at 1:55pm via mobile ˇ Like ˇ 1

Francis Johns All dyno tunes need to be double checked on the street for proper load calculations
Yesterday at 1:56pm via mobile ˇ Like ˇ 2

Francis Johns This is especially true for all turbo vehicles
Yesterday at 1:56pm via mobile ˇ Like

Bob Knott Car has k&n intake 3 in catless dp. Injen charge pipe. Mpx intercooler and 3 bar map sensors
Yesterday at 2:11pm via mobile ˇ Like

Matthew Cooke Needs to tweak the tune!
The # seem low for fully bolted!
Yesterday at 2:22pm via mobile ˇ Like ˇ 3

Phillip Gruver 28 psi on the stock turbo? Lmao omg
Yesterday at 2:35pm via mobile ˇ Like

Matthew Cooke What did they do for a tune? Did they Adjust timing? That spike is really high for doing a 20psi
Yesterday at 2:38pm via mobile ˇ Like

Rick Ecaf Ramos I put down 325/402 on a 30psi spike so yea, something is wrong.
Yesterday at 2:47pm ˇ Like

Brian Mall Numbers seem low
Yesterday at 2:47pm via mobile ˇ Like

Jason Rimmer I made 346/412 fully bolted and run 24 psi and maybe spike 26... elevation makes a big difference since it was in mass
Yesterday at 2:50pm ˇ Like

Jason Rimmer but not that big somethings not right with the tune
Yesterday at 2:50pm ˇ Like

Matthew Cooke he has gms1 map sensors in so maybe the tune needs adjustment for them! But ya should be low 300whp and high 300ft lbs if not in the 400 depending on how aggressive the tune
Yesterday at 2:55pm via mobile ˇ Like

Jason Yowell Needs a real tuner
Yesterday at 2:59pm via mobile ˇ Like ˇ 1

Jason Yowell Loaded dyno?
Yesterday at 2:59pm via mobile ˇ Like

Bob Knott Not.sure what loaded dyno means
22 hours ago via mobile ˇ Like

Jason Yowell What brand dyno?
21 hours ago via mobile ˇ Like

Steve Myers quit trying to compare dyno numbers...have heard more bad than good about smg though.
21 hours ago ˇ Like

Bob Knott Its not really the final number that matters, its not even my car i was just cocerned that the turbo is being overworked and is producing less due to some kind of error.
20 hours ago via mobile ˇ Like

Bryce Frossard Yes...a 28psi tune is over working that tiny turbo. And overworking it to get low numbers is def a red flag. Guys have made higher numbers, good power band and been safe on much less boost. He may want to get a 2nd opinion/look at the tune
20 hours ago via mobile ˇ Like ˇ 1

Jason Yowell This
18 hours ago via mobile ˇ Like

Granted the page is full of douchebags that's just what was scene and worried us.

 

Facebook is out of control. Everyone's ase certified and assuring their word is end all be all.

But to even second guess suggestions from cobalt SS gang? Lol comeon. Hit unlike and do yourself a favor.

 

Well said

 

What? It's on Facebook. It has to be true.