wow thats nice, cant wait for the evo 10 to come out, thats something that i think is worth buying

 

nice gains with just an intake and no tuning

 

Alright I tried my hardest not to post in this thread out of respect for a fellow tuner, BUT I cannot hold back anymore.
Look man I am not trying to start a **** storm, but a few things need to be addressed here.
You gained almost 30WHP and 45 lbs of torque on exhaust and Intake? No boost pressure increase? That is incorrect.
Peak torque will increase slightly, but not that much. I am sorry but these results are not correct. There is no way you will make that much of a difference on this car without any type of tuning.

UNLESS you are running a parasitic loss measurement on our machine. The numbers from baseline to modded do not add up. So take it as you may, but without boost increase and tuning of the A/F the numbers will never add up. Forget timing it wil play little to no roll. I have tuned many 9's now and have seen what they can do.

 

I knew something wasnt correct either. That makes a lot of sense Nick. The tune that you guys did to the IX seems correct. I have never seen an Evo gain 30whp from an intake and exhaust with NO TUNE!!

 

Precision,
You must not have read all of my other posts. The boost was left up to the stock ECU. Looking at the curves posted the boost DID change as parts were bolted onto the vehicle, as pretty much every turbo car will.
I will state again me nor the shop stand to gain anything from this. These are NOT our parts; these are bolt-ons anyone can get from any vendor. Does this stand to hurt our businesses (PURE and Precision) if someone can bolt on 300hp in their garage. YES! I don't want to fight about it but these are facts. I just want to give what information I have to the community.

Here is a comparison graph of stock vs. Intake exhaust vs. down pipe, intake, and exhaust. Showing the boost levels as the stock computer was controlling them. Same runs as posted above but I smoothed them to 99 like you would at your shop. Did it affect the numbers? 3HP at redline! Notable? Not really.

 

This dyno was calibrated by Mustang. It reads exactly the same s the MD250 we used to have that Mustang calibrated. Just because I don't post alot doesn't make me new to this game I have been tuning for years. As matter of fact I remember when DSM's, Supras, 3000GT's,and other turbo cars gained huge numbers from an exhaust system, why would the EVO be any different. Actually I have a graph from a custom 3" downpipe and exhaust we did on a FWD turbo eclipse that gained 50+ to the wheels NO TUNING, Stock ECU and stock boost solenoid controlled by stock computer.

 

On another note I did get a chance to pull the 04 RS late last night on race gas. 110 octane cam 2 is what he runs. Boost spiking about 25 and falling to about 23.5.
The turbo is out of breath up top. But the average gain of 50 from 4000 to 6000 is pretty nice. This map was tuned on the drag strip, and I feel still has some to be gained. His street boost curve still leaves a little to be desired as well.

For warrtalon: I asked the customer if he has ever raced on pump. he said he went 12.1 @ 112.xx a few weeks ago on 94 octane sunoco. So your estimate was correct.

One mod I forgot to list earlier for this car. He has the 10.5 hotside.

This graph is a little more smoothed than the earlier one (50 vs 1) Seems people like the nice "pretty" smooth curves


Thanks
Matt
PURE Tuning

 

By no Means am I saying you are new to this. We have been here awhile as well. As we grew on this forum people started to hear about us. But that doesn't mean we are new to the game.

It is interesting that our tests showed 8 HP increase with full exhaust and 20+ at redline.
Your results seem to show an increase at peak torque of 40+.
Peak torque numbers are widely affected by boost pressure or an increase in VE. You are right, however that boost can and will increase as the pressure differential increases. BUT to the tune of 45lbs I don't see it.
There have been cases as well that have showed a spike in peak torque due to the inaccuracies of the stock boost control system. Again I cannot see how these "numbers" are accurate. They are just numbers I understand that but your baselines paint a different picture. You may want to try showing some graphs in Third gear and a parasitic loss measurement for accuracy. Also a load cell calibration should be done as well in timely intervals. It may show some interesting results.
Sorry for jacking your thread.
Keep up the good work. Maybe we will meet up sometime when we are in Ohio.

Nick
Precision Dyno

 

Actually the theory is reversed. If you truely look at how the mustang samples you will notice that a higher smoothing number it will show your true flaws. If we run as low as 0 the curvature doesn't give you a clear understanding about A/F. It may however show a large spike or downward slope sharply for data that has been read as problematic.
The curves "look" better to some people, but for us we use then to see where improvements can be made in a linear fashion for WOT.

Nick
Precision Dyno

 

Nick,

As far as the smoothing thing I agree with you to a point. A smoothing of 0 may show some false indications, but I feel 99 is too much. I typically set it around 35 - 50 when tuning. This is one of those methods that differ with different tuners.

We do check the load cell for accuracy. Last night I pulled the IX off the dyno and pulled the 04 (the race gas graph) above straight on. When it left the dyno I pulled a cover and did a check over on the entire dyno including load cell calibration. Which I typically do once a week. If you would like to discuss parasitics on our machine vs yours I am willing to do so but lets keep it to PM's or phone since it would probably be a little much to digest for most people on here.

Some new graphs though.
Last night added MBC, upper intercooler pipe, and BOV still no tuning. Top end AF's are still in the 10's.




And same mods as above except stock boost controller in 3rd, 4th, and 5th gear. Remember this is an MR = 6 speed


Thanks
Matt
PURE Tuning

edited for terrible spelling

 

Due to lower back pressure from the exhaust components high RPM boost rose from 15 psi at redline to 17.5 psi at redline with boost gain in most of the rev range other than a dip right after the initial boost spike uppon spoolup.

He posted about this.

A/F ratio imporved from the low 10:1 range from 3500 RPM to redline befor the intake and exhaust work to 11.5:1 through most of the rev range, droping down into the 10's at high RPM.

He posted about this as well.

In short, he is not claiming to be the best tuner on the planet due to his gains on the dyno.... these are off the shelf parts that can be purchased from virtually any shop, he has no tunning time invested in the car, and no reason to fudge the results.

Keith

 

Extremely well said! The whole point to this is that people can argue all they want about how believable the numbers are, or whether or not they "appear" or "sound" correct, or are "funny" which implies that they think something must be wrong with the way the dyno has been calibrated. Well, hows this, all of you are wrong, because thats not the type of shop PURE is, and the dyno is calibrated with Mustangs factory settings. Also, every other evo that has been dynoed on the SAME dyno, has provided comprable time slips to back it up at the drag strip, not to mention some recent dyno runs which were repeated just to back this thread up! My car is an 05 MR, with the same TBE as the IX, and more mods overall and made LESS hp, than the IX! Again, as matt said earlier, is the car a freak?....maybe, maybe not but the numbers are right, and if this werent a customer car, we would take it to the local track to prove it...and with a little convincing, maybe we will (since the customer himself isnt into drag racing) but there is only one more test and tune date left till the track closes. Untill then as it sits now, the EVO IX responds to regular bolt on mods much better than the VIII, and thats what has been proved here so far.

 

Hotside is same 10.5 but cold side is larger.

 

something is not right...

 

hahaha! Fits my theory of the Evo IX perfectly! No one seems to want to listen to me though.

But yeah, things are falling into place about my theory. Now I just need to see a "stage 50" or something IX to see if I'm completely right.