Tuners around GTA

draper

Hey guys just take it easy. We're all VQ brothers around here and helping out each other. Megan, I like Sasha and shouldn't have come hard on him but wasn't happy definitely with his tune. That said I want to leave it like that and wouldn't want to drag this on for any reason.
I had a reason that the tune with APH was different than with Sasha's, I'm sure my butt dyno didn't let me down in comparing those two.
That being said and since you spent so much time analyzing the graphs, I said let me look at those again and there must be a reason why my butt sensor feels sensitive to these two tunes.

Here's what I found


HP
RPM Base APH Diff

3000 124 128 4

4000 165.6 170 4.4

5000 210 210 0

6000 242 252 10

7000 268 275 7

7300 274 284 10

6800 260 273 13

5400 220 230 10





Torque
RPM Base APH Diff

3000 217.5 222.5 5

4000 216 222.5 6.5

5000 219 221 2

6000 208 220 12

7000 202 207 5

7300 197 204 7

6800 202 210 8

5400 213 222.5 9.5

4700 215 225 10

2500 225 235 10



HP
RPM Base SG Diff

3000 135 135 0

4000 183 187 4

5000 224 228 4

6000 255 262 7

6800 284 288 4

5750 258 260 2

5500 244 250 6



Torque
RPM Base SG Diff

3000 0 0 0

4000 238 245 7

5000 235 240 5

6000 225 230 5

6800 218 225 7

5750 230 237.5 7.5

5500 232 238 6

5250 233 240 7

Though gear ratios are different but Megan you used the numbers to prove both the tunes were same or that Sasha's was better. Take a look at the dyno graphs again that I've attached, I had marked some mid points to get some approximate numbers, sorry if I'm off I tried my best. The torque does show nice improvement with APH and thats where my butt dyno picks it up.

APH or Brian do not know anything about my tune with Sasha and I would appreciate if they're do not know and I don't feel any reason they should.

Megan, I understand your frustration and you're making more harm than good especially for Sasha. You seemed to have purchased M370 recently and am sure you would've done your homework with it prior buying it, ppl have had different results with that.

Next time I'm in T.O, we'll go for a run and see who's faster.


cheers.

Attached Images

	G37-AphTuned_mod1.jpg (274.2 KB, 5 views)
	sgDynoG37Mod1.jpg (376.5 KB, 5 views)

Megan370z

Draper ,
what we have been discussing is APH didnt setup the dyno properly and the result of the gain are slighty affected by this.

you cant compare the graph of those 2 dyno together
because 1 has the correct setting (SG)
and the other 1 has incorrect value (APH)
you can only do an average of the gain with one and check the average gain with the other one ,, you cant just say hey I had 300 hp with his but 260 with the other one.

even that ,, there is no Dyno that read the same
APH is known to read higher than SGM one...
but on this one since the gear ratio isnt correctly set ,
it throw everything off ...



in conclusion ,, IF i was you . I would have 2 choices
either chose to go back to APH or SGM and get a few proper pulls with every tune
and make sure this time that the dyno is set correctly and get tuned on the top end since the tuner didnt rev the engine to redline ,,, he didnt even go into your peak power since he stoped around 6500-6000 rpm .. the 7300 rpm you see on the APH dyno sheet is the result of the incorrect value in the gearing ratio


that way you are looking to see which one is the best one...





look as an example when first I went to SGM for a tuning , yeah I was like you , mixed feeling with the gain , so later on I did some street tuning and being VERY aggressive with the ignition timing and afr ... then I went back to SGM to see 4 different map and see where we can borrow the best of everything ,

put everything together , we managed to get gain everywhere
2 of my street tuned map were having knock , we corrected it and made more power.

Megan370z

Draper ,
those 2 picture you just shown is one of APH and SGM , thats ok

You said in your post when you posted the first time that this one was 1 pull from the base pull and then a pull with the APH tuned one

ofcourse you will have the big gain from the base tune...

and the one on SGM was with Sasha tuned map and your Cobb map which is already tuned from them,,
since you came in his shop with an afr 12,5

from the factory the 370z run lean ,, not rich like that , you even have breather mod and exhaust ,, if you wasn't tuned when you went to SGM ,, you would have been in the 14.x AFR

then the big gain would have shown like APH in his graph

Megan370z

on a side note ..
no I did not bought the M370 from MotorDyne

I bought an used 350z HR intake manifold with both Throttle body for my projet
Since someone showed the picture of their M370 . i took advantage of it and Did the modification myself , I dont see myself buying the same item for 900 $ when I bought it for 100$

Megan370z

aaaa I hate missing stuff
sorry Draper

I do not have what you are asking since the only sheet I have with me is the last one I got the last time I went to SGM and I didnt ask to have the one from the first time he tuned me .

if you add the gain I had the first time and the gain I got the second time
it should average between 5 to 13hp / tq
those are my word and dont put to much weight on it because I go from memory

but I do remember the first time I got in at 268 whp and left at 280 whp (6800rpm) and droping !!! since i do not have a CAI

Im pulling vacuum from 6400 rpm to Redline.. which mean there is a restriction in the OEM Intake system with the freeflow exhaust I have

Megan370z

just to throw something
here is my first Dyno with my 370z at APH
the car had no mod or tune , 100% stock

the gear ratio is correct
I did 5 pull and those 2 there are the lowest and the highest one
you can see a big difference


Pull # 2 gave the Biggest number and pull #5 gave the lowest one.

always do more than 2 pull to check the accuracy of the tune...