STS-V on a DynoJet

[jedhead]

I ran the V on the dynojet this morning. Stock I pulled 387whp and 378wft-lbs of tq. The only dyno sheets I have seen have the STS-V at 360-370hp stock. I lost a little bit of power on the tuned ECU. Also the tuned ECU was a little lean at the bottom end. I will probably retune the ECU since I didn't leave it in.

Bob

[94cobra69ss396]

Nice. How much boost does it make? Also, you are really lean for a boosted car. Do you have problems with detonation? How much timing are you running?

[enkeivette]

:popcorn:

[SeanPlunk]

Nice numbers Bob! Very strange about the modified ECU though. I wonder what the problem is? Also, is that company still going to build an intake for you?

[SoCalC55]

Damn you and your F/I engine, haha

[jedhead]

Nice. How much boost does it make? Also, you are really lean for a boosted car. Do you have problems with detonation? How much timing are you running?
12psi max. The blue line is the stock tune. I didn't have a tuning software monitoring the engine on the dyno so I don't know where the timing was. I haven't detected any detonation at all with the car.

Bob

[Damian]

Very nice, I wish the gto was up there but I'm not too far behind.

[Leedom]

Nice numbers for "grandpa's car"!

[jedhead]

Nice numbers Bob! Very strange about the modified ECU though. I wonder what the problem is? Also, is that company still going to build an intake for you?
The tune was for another 2006 STS-V from Ohio. I know that they have 93 octane gas and there may be a difference in the tune for 91 octane. I was being careful to see where A/F ratio is before I ran on the street with the tuned ECU. I am a little concerned that it appears to run a little lean with the tune. The stock ECU is still in the car and I will probably have it tuned soon.
The tune is supposed to do the following:
Make the throttle snap open quicker - the throttle opens a little slower in 1st and 2nd.
Cause the internal flaps and bypass move quicker to allow boost to come on faster
Remove the timing retard during shifting.
Make the transmission shift quicker in sport mode
Remove the speed limiter.
Increase the speed in which the timing is advanced.

Bob

[Damian]

What are you using for tuning?

[jedhead]

What are you using for tuning?

I bought the ECU tuned. I am considering buying EFI Live. I need to do some more homework before I decide.

Bob

[jedhead]

Sean, I heard it was go for the intake, then I haven't heard from them again. I plan on leaving some messages to find out what's going on.

Bob

[jedhead]

Spectre did some more testing on the car yesterday and this morning. I have been given the go ahead to post the pictures and dyno sheet. They were able to show an average of 36wft-lbs of tq and 44whp with both the upper and lower intake. The sound is incredible. The mid to upper rpm power is there and I can break loose the tires punching it from a roll at 50 with a 3 gear downshift.

Spectre uses a Mustang dyno that reads lower than either dynojet or dynapacks. On the flow bench the intake flows over 600cfm more than the stock. My intercooler pump failed and caused the lower reading on previous dyno runs. I hope to re run the car at Superior after Christmas.

Run 1 stock intake. Run 2 Lower intake and filter Run 3 Upper and lower.
http://www.supermotors.net/getfile/842225/original/spectre-dyno-mustang-small.jpg

Lower Intake and filter.
http://www.supermotors.net/getfile/842223/original/dsc_5975.jpg
http://www.supermotors.net/getfile/842222/original/dsc_5973.jpg

Upper Intake.
http://www.supermotors.net/getfile/842221/original/dsc_5967.jpg

Upper and lower together.
http://www.supermotors.net/getfile/842217/original/dsc_5953.jpg

I had the tune rechecked for a lean condition and the car pulled 438wft-lbs and 457whp on the dynapack that the car was tuned on. When I ran the car on the dynojet the car was down on power because the intercooler pump failed. I hope to retest again later.

Bob

[jedhead]

BTW Spectre is looking for a 2009-2010 Ford F150 with the 5.4L V8 for test fitting an intake. PM me if anyone is interested.

Bob

[enkeivette]

I'm seeing 339... not 457???

[jedhead]

Different dyno. 339 on a Mustang that Spectre owns. 457 on a dynapack that my tuner owns and 397 with a bad intercooler pump on a dynojet that Superior owns. The dyno results vary so much between manufacturers and even between the same model, that I only use them to gauge the performance increases with a mod. I have replaced the stock intake with aftermarket intakes in the past in many of my cars that I have owned and this is the first one that I can actually feel the difference in performance. The others I have had in the past I could hear the performance far greater than feel it. Spectre claims that this intake system showed the greatest performance increase compared with all the others they have designed in the past. In quelling the noise of the supercharger, GM must have restricted the air going into the engine.

Bob