Got my Uprev??
 

Hey guys, got my car tuned yesterday.

Mods at the time of tune

Invidia Gemini CB
Motordyne ART pipes
Injen CAI
UR Crank Pulley

Workshop :tup:
http://www.freeimagehosting.net/uploads/999822f98c.jpg


Dyno was done on Mustang AWD dyno, I believe shows very conservative figures, room temp was around 77-80F dont know if that helps


All strapped up
http://www.freeimagehosting.net/uploads/622700587d.jpg


First Run
http://www.freeimagehosting.net/uploads/bcfd8fb9d7.jpg

Pre tune figures
http://www.freeimagehosting.net/uploads/f0eee705fd.jpg

Car pushed 240whp and 262 torque

2nd Run
http://www.freeimagehosting.net/uploads/fa1196615a.jpg

Post tune figures
http://www.freeimagehosting.net/uploads/f9638a6856.jpg

Final graph
http://i826.photobucket.com/albums/z...z/9a2d6113.jpg

Finally 261whp and 286 torque, a gain of 21whp and 24 torque

Red line was extended till 7750, and speed limiter was removed as well.

they didn't measure A/F before tun and after the tune it was inline with 13 to 13.4, which was adjusted to somewhere between 12.5 to 12.8. One of the reason to get a tune was to fix the A/F ratio, but the guys told me these cars do go that much lean with wide band A/F, so they corrected only after I told them.:shakes head:

Some minor changes were done to gearbox as well.

I will post some videos later.

Now, I was quiet shocked to see the figures but they said their dyno shows very conservative numbers. I am finding it hard to feel the changes which people usually see after the tune. Car is pulling good post 3k rpms but I call it a slight difference.

Does anyone find any abnormal thing in the dyno graph and is there anything else which needs to be corrected? As I am thinking of returning the license because the difference I felt is very very less :confused:

The tune really depends on how the car comes from the factory and the quality of the tuner, If your car is already able to maximize most of the gains from your bolt-ons even a great tuner would only be able to extract a few whp out....

But I would say a Gain of 20+ whp with just a tune is great!

I also used a Mustang dyno and went from 282whp to 304whp after a few bolt-ons Im sure with a tune I might get another 10-15whp at the most.



DAN

Yeah but 261whp after tune? and with all these mods??

I saw a Panamera......:icon17:

I have all the following engine/bolt-on upgrades:

Berk HFC's
Stillen Gen III Intake
Stillen Dual Exhaust
Stillen Lightweight Pulley
Grounding Kit
Gates Belt
Stillen 304 Stainless Steel Headers
Fully tuned Cobb AccessPORT

And the best I finally got was 315 whp and 252 torque.

http://carphotos.cardomain.com/ride_...0022_large.jpg

That minor change is after getting the Cobb AccessPORT tuned, btw.

What I find strange is mine was 272 whp bone stock. :confused:

lol your car is the first car in whole VQ series that have torque more than HP:bowrofl:

Mustang dynos are wierd. Congrats on the delta difference between before and after your tune. Thats what is most important.

Now, tell me where did you get those front fenders?

I sorta noticed that, too.....but thought maybe I was missing something. :icon17:

Something is wrong with these charts. Sure Mustang dyno's read low but his torque figures are crazy high. When you convert the torque numbers to HP using (trq*RPM/5252) you get really high HP numbers as well.

Further more, the picture the snows the dyno screen has 2 different scales for Torque and HP, yet the chart still crosses over at a perfect 5252 RPM - which is impossible.

Basically your numbers are meaningless because whomever programmed this dyno did it wrong.

Those dyno graphs just looks wrong.

I agree. The dyno graphs just look wrong. TQ and HP are always supposed to cross at 5252 RPM provided that the scales are equal. In this case the scales are not equal.

My friend, maybe t its time to find another dyno.

Still, execlent job on the tune. It appears the tune did give you good gains.

Dyno cal was probably off. What gear did you do the runs in?

The workshop is quiet reputed here, do lots of tunning for jap and german cars, that Panamera belongs to some royal person in Oman and just came here for the tune

I read about your numbers...awesome:tup: but maybe the dyno is different man.

Carbon Signal made those for me, there is a thread in exterior section:tiphat:


Yeah whp comes to 294 if I calculate according to what you said.

It has two different scales but in the final one hp scale is not there....TBH Im a noob on these things, so any idea what could be wrong here??

so any idea what could be wrong here??

so any idea what could be wrong here??

You mean caliberation?

Run was done in 3rd gear btw mine is 7AT

Yeah, it's possible that it was mis-calibrated.

Isn't 5th gear the 1:1 ratio? Maybe 4th for the 7AT?

No idea about that:confused:

Yes Docaam the 1:1 in 7AT is 4th gear..

But 5AT like Sam's car "IS" 3rd gear.. lol redyno and you will see 300 HP :D

Now i see why your base numbers were similar to mine all though you have more mods than I do.. they did it on 3rd gear!

Is there another tuner nearby with a different dyno? Have others dyno'd there and have had similar results? from what I've seen Mustangs do read lower than most, And 4th is the sweet spot for 7AT.

I believe the torque was measured in newton-meters rather than foot-pounds. But after conversion still seems way too low, about 193 ft-lbs before and 211 ft-lbs after. I guess attributed to wrong gear selection.

Being in 3rd alone is explanation for the loss in HP. If you're not driving the wheels with a 1:1 ratio, it easily explains ~30 hp loss.

The tuner said the difference wont be that much in 3rd and 4th? but will put unnecessary pressure on the gear?

which dyno tensai has?

There are only two tuners here one is this where I went and usually everyone goes, I cant compare the numbers with other people because hey just moved their dyno and told me before hand it will read low.

The second is one where G37sHKS took his car, he was soo dishearted that he detuned his car, after they broke his gearbox....they are good with EVOs tough

I will be checking with them on Saturday as they are closed till then

So what you reckon, a retune and redyno or just a redyno?

I dont know know about what your tunner said to be honest. Never had experience with dem but when i was tunning. we tried 3rd, 4th, 5th gear and the 4th gives the highest HP/TQ..

If my info were correct. even AFR is not accurate if you dyno your car with wrong gear. please some1 correct me if im wrong

btw i might be in dubai too, Lets just say I suck at DIY:owned:. Maybe you can pick me from evolve and go check your tunner together and drop me back when we finish

Edit: Tansai Have mustang dyno.

Even if the wrong gear was used it wouldn't explain the inconsistency between the HP and torque figures. Mathematically they just don't make sense.

Mustang dyno's do read very low, which is fine, but when the torque and HP don't correlate I would be concerned that they know what they are doing.

Okay, to be honest with you, where Docaam tuned his car is where people says that the tuner plays with the dyno graph because more than 5 customers they get good gains on "graph" but zero gains in butt dyno..

Where I tuned my car is the second tuner that Docaam mentioned, I got only 5-6 gains after tune I was so disappointed and I asked for full refund and detune my car.. but the good thing is. My tuner did not play with dyno graph..

So After this graph now im sure that the tuner (where docaam tuned his car) is playing with graph. because the torque and Hp doesnt match at the right spot which means the car is bad condition and needs to rebuild ASAP and there is no way on earth that Docaam's car is not in good condition.

but i might be wrong.. Docaam's car "Might" not be in good condition :bowrofl:

5-6hp is about all you should expect from a tune on our cars, but it is an honest 5-6hp. The only people that get more than that are ones that had A/F ratios out of whack.

The 20hp he got is obviously bogus. People wanted big numbers so the tuner gave it to them by playing with the machine.

I will try to do some runs on 4th gear and will see the difference then.

Its not exactly true, people have their own opinions, its was only one person from our local group who said he didnt feel anything rest all were happy. So it doesnt really matter.

I was not after the numbers but as I was not feeling very good difference so just checking, will get the car checked on 4th gear and see.

I have no doubts about the credibility, this is what they do and our VQ cars as a very small part of their work, that's another issue lets not go there

5th gear is 1.1 in a 7 AT.
and 4th is 1.1 in the 5 AT.

Z

how confident you were :shakes head:

Maybe thats why the tuner broke your gearbox:roflpuke2:

Thanks man, will do the dyno on 4th and 5th, would like to know which gear they use for dyno on 7AT, as 5th is an overdrive gear so I dont know pushing in overdrive gear is ok or not

4th is the gear you want. 3rd gives silly low numbers, and you will hit the speed/rev limiter in 5th.

I will be going again for the dyno, apparently I saw there was a leak in my ART pipes, so I think either will do it after removing those or replacing those

I'm thinking of getting ART pipes with a tune later on and the shop I'm going to (AWDTuning in DFW) uses a mustang dyno as well. Dyno'd my car yesterday and the results are in line with what Docaam had, 267 HP, 207 TQ with F.I. CBE and G3 intakes. Ambient temps were like in the mid to high 80s but lots of humidity.

Well, whatever power you made, your car looks badass. The end.

Yea Mustangs are wierd, But you numbers look like mine. Pre tune. I made 243 WP and 220 WHTQ, I also have a 7SPD AT and did 4th gear, which some also told me was the wrong gear , Even tho others told me is was the right gear.. My numbers where a lot lower than others- for 1 I have a X , Mustang dyno and the correction was not even 1.. Correction was .09. They guys told me the numbers where like a STG 2 STI.\

I also think I would have made higher numbers as they did not do the runs till the numbers stabilized, Each run was 5WHP more than the last. IE first run was 233 WHp last was 243 WHP?? Car was still learning the exhaust (Was only a week old), Oh I only had 1500 miles one the car also.

Mods are Stillen Gen3's, Exotic Speed CBE. Stock cats.