UpRev ECU tune results for Semtex's Z

HKYStormFront · 10-29-2009, 08:40 AM

Quote:

Originally Posted by Zeto

Do you think there might have been more power to be had had he gone up to 8000 RPMS?

if the torque # stayed the same and didn't fall off, hp would go up yes

370Zsteve · 10-29-2009, 09:16 AM

Quote:

Originally Posted by semtex

He bumped it up to 8000, said I can use it at my discretion. He didn't run all the way to 8000 on the dyno though, I'm noticing.

He didn't want to melt the engine, felt that could be left up to you!

RCZ · 10-29-2009, 09:10 AM

Torque is falling off near the end of the run though, so I doubt it would have benefited too much from running it into the 8k redline. I think they were wise and decided to leave the top end a little tame in order to increase longevity.

semtex · 10-29-2009, 09:12 AM

DynoJet run scheduled for 1pm ET tomorrow (Friday). Will post results as soon as I get them.

ssqpolo · 10-29-2009, 04:57 PM

awesome results. thanks for always being the first to get **** done on this place!! soo was is there a speed limiter? i didnt think there was.

jpit · 10-30-2009, 12:13 AM

Does anyone know if these are SAE corrected numbers?

FricFrac · 10-30-2009, 01:46 AM

Good to see some results finally. Its going to be hard to justify spending $1100 to get the software and dyno tune for 6HP though....

Curious to see the results of a e-tune compared to the dyno tune.

semtex · 10-30-2009, 02:19 PM

Okay folks, all is not well. Two things are going on.

First, since getting the tune done, my car is doing something rather strange on cold starts. I start the car, wait my normal 30 seconds for everything to warm up, and when I slip it into 1st and tip the throttle in, there's like this weird dead spot. Gas pedal goes down a little, I start to feather the clutch in (same thing I've done a million times before), and nothing. The rpms just kinda don't go up, then all of a sudden, WHAM, the rpms jump up to where they ought to be and I go lurching forward like I've never driven stick before. But it only happens on cold starts, and goes away as soon as the car has warmed up a little more. Like by the time I get out of my neighborhood and make it to the first set of lights a half-mile from my subdivision, the problem is gone. I can launch as smoothly as always. No dead spot, no lag effect.

The first time this happened was yesterday morning when I left to go to the gym. I thought maybe it was my imagination or maybe it was human error on my part. But this morning, it did the same thing. It even did it when I was done with my workout and left the gym to come back home (car sat for about 2 hours). Something is f'd up. The driveability of my car has been compromised.

Okay, the second thing going on is this. I just got back from my DynoJet pulls. I have LOST approx. 15whp since my last DynoJet pull on the same DynoJet! Check it out. RunFiles 003 and 005 below are from today. RunFile 010 is from back in May.

I know, I know . . . different pulls on different days, months apart, right? But look at the run conditions:

The green and yellow lines are from today. The blue one is from May. It was cooler today than it was in May. Humidity is higher today than in May, but the correction factors should compensate for that.

Take these two things together -- the weird dead spot on cold start, plus the bizarre dyno results, and I think I'm being fair in saying that something ain't right!

I haven't been able to talk to Sharif yet, so I'm not sure what the next steps are. But right now, I'm about ready to have him flash my stock tune back in. This is not the desired result.

NIZMOZ · 10-30-2009, 02:42 PM

330rwhp on a dynojet sounds way off. Like it was out of calibration. No way your car would do that. But the other numbers sound right compared to Forged dyno. That is normal. I think your car is fine.

Quote:

Originally Posted by semtex

Okay folks, all is not well. Two things are going on.

First, since getting the tune done, my car is doing something rather strange on cold starts. I start the car, wait my normal 30 seconds for everything to warm up, and when I slip it into 1st and tip the throttle in, there's like this weird dead spot. Gas pedal goes down a little, I start to feather the clutch in (same thing I've done a million times before), and nothing. The rpms just kinda don't go up, then all of a sudden, WHAM, the rpms jump up to where they ought to be and I go lurching forward like I've never driven stick before. But it only happens on cold starts, and goes away as soon as the car has warmed up a little more. Like by the time I get out of my neighborhood and make it to the first set of lights a half-mile from my subdivision, the problem is gone. I can launch as smoothly as always. No dead spot, no lag effect.

The first time this happened was yesterday morning when I left to go to the gym. I thought maybe it was my imagination or maybe it was human error on my part. But this morning, it did the same thing. It even did it when I was done with my workout and left the gym to come back home (car sat for about 2 hours). Something is f'd up. The driveability of my car has been compromised.

Okay, the second thing going on is this. I just got back from my DynoJet pulls. I have LOST approx. 15whp since my last DynoJet pull on the same DynoJet! Check it out. RunFiles 003 and 005 below are from today. RunFile 010 is from back in May.

I know, I know . . . different pulls on different days, months apart, right? But look at the run conditions:

The green and yellow lines are from today. The blue one is from May. It was cooler today than it was in May. Humidity is higher today than in May, but the correction factors should compensate for that.

Take these two things together -- the weird dead spot on cold start, plus the bizarre dyno results, and I think I'm being fair in saying that something ain't right!

I haven't been able to talk to Sharif yet, so I'm not sure what the next steps are. But right now, I'm about ready to have him flash my stock tune back in. This is not the desired result.

B1nks · 10-31-2009, 11:40 AM

Quote:

Originally Posted by semtex

Okay folks, all is not well. Two things are going on.

First, since getting the tune done, my car is doing something rather strange on cold starts. I start the car, wait my normal 30 seconds for everything to warm up, and when I slip it into 1st and tip the throttle in, there's like this weird dead spot. Gas pedal goes down a little, I start to feather the clutch in (same thing I've done a million times before), and nothing. The rpms just kinda don't go up, then all of a sudden, WHAM, the rpms jump up to where they ought to be and I go lurching forward like I've never driven stick before. But it only happens on cold starts, and goes away as soon as the car has warmed up a little more. Like by the time I get out of my neighborhood and make it to the first set of lights a half-mile from my subdivision, the problem is gone. I can launch as smoothly as always. No dead spot, no lag effect.

The first time this happened was yesterday morning when I left to go to the gym. I thought maybe it was my imagination or maybe it was human error on my part. But this morning, it did the same thing. It even did it when I was done with my workout and left the gym to come back home (car sat for about 2 hours). Something is f'd up. The driveability of my car has been compromised.

Okay, the second thing going on is this. I just got back from my DynoJet pulls. I have LOST approx. 15whp since my last DynoJet pull on the same DynoJet! Check it out. RunFiles 003 and 005 below are from today. RunFile 010 is from back in May.

I know, I know . . . different pulls on different days, months apart, right? But look at the run conditions:

The green and yellow lines are from today. The blue one is from May. It was cooler today than it was in May. Humidity is higher today than in May, but the correction factors should compensate for that.

Take these two things together -- the weird dead spot on cold start, plus the bizarre dyno results, and I think I'm being fair in saying that something ain't right!

I haven't been able to talk to Sharif yet, so I'm not sure what the next steps are. But right now, I'm about ready to have him flash my stock tune back in. This is not the desired result.

Ok well I haven't done a dyno pull on my original dyno but the same exact thing is happening with me as far as cold start drivability. I just had my done by uprev on Thurs. And I'm in Dallas right now and haven't contacted rich cause it's the weekend but I will be. Didn't drive my car again till last night and it did that along with this morning. A little upset but hopefully UpRev will make things right. I'm really curious about that horsepower loss, I have the opportunity to re-dyno my car on my original car possibly Monday but we'll see, might not have the funds.

John@Z1 · 10-31-2009, 01:04 PM

Quote:

Originally Posted by B1nks

Ok well I haven't done a dyno pull on my original dyno but the same exact thing is happening with me as far as cold start drivability. I just had my done by uprev on Thurs. And I'm in Dallas right now and haven't contacted rich cause it's the weekend but I will be. Didn't drive my car again till last night and it did that along with this morning. A little upset but hopefully UpRev will make things right.

We all know that Uprev will take care of the cold issue. But on Semtex's #10 dynojet run what the graph does at 4150rpm is kind of strange.

jpit · 10-30-2009, 02:31 PM

One of the things that my Uprev tuner did was to give me five different maps controlled by the cruise control buttons: performance, economy, stock, valet, and theft. It is pretty easy to determine if there is a problem with the tune.

semtex · 10-30-2009, 02:34 PM

Quote:

Originally Posted by jpit

One of the things that my Uprev tuner did was to give me five different maps controlled by the cruise control buttons: performance, economy, stock, valet, and theft. It is pretty easy to determine if there is a problem with the tune.

Yeah I didn't get alternate maps. I asked about those and Sharif said he really only does that for turbo'd cars. Zeto -- no CELs. Everything appears normal.

semtex · 10-30-2009, 02:48 PM

I'm making 318 on Forged's Dyno Dynamics and only 316 on a DynoJet and you think that sounds right?

In any case, dyno numbers aren't my main concern right now. That dead spot needs to be addressed. I'm not sacrificing the driveability of my car for a piddly 6hp gain.

NIZMOZ · 10-30-2009, 02:50 PM

Quote:

Originally Posted by semtex

I'm making 318 on Forged's Dyno Dynamics and only 316 on a DynoJet and you think that sounds right?

In any case, dyno numbers aren't my main concern right now. That dead spot needs to be addressed. I'm not sacrificing the driveability of my car for a piddly 6hp gain.

I was thinking the 301 dyno that guy posted. Ugg. Sorry. Then yes that sounds right for 330rwhp.

10-29-2009, 09:12 AM	#4 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 54 Posts: 5,995 Drives: People to drink Rep Power: 33	DynoJet run scheduled for 1pm ET tomorrow (Friday). Will post results as soon as I get them. __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

10-30-2009, 12:13 AM	#6 (permalink)
jpit Enthusiast Member Join Date: Feb 2009 Location: Washington State Posts: 440 Drives: 370Z Tour MT w/Spt Rep Power: 17	Does anyone know if these are SAE corrected numbers? Last edited by jpit; 10-30-2009 at 01:06 AM.

10-30-2009, 01:46 AM	#7 (permalink)
FricFrac A True Z Fanatic Join Date: Dec 2008 Location: Victoria, BC Posts: 1,481 Drives: 370Z 300ZX 280ZX 240 Rep Power: 229	Good to see some results finally. Its going to be hard to justify spending $1100 to get the software and dyno tune for 6HP though.... Curious to see the results of a e-tune compared to the dyno tune. __________________ '09 370Z - '93 300ZX Vert - '83 280ZX - '83 280ZXT -'81 280ZXT stroker - '72 240Z - Stillen CBE, HFC, G3, Grounding Kit, Sways // Swift Spring // H&R 15mm // 5% Tint // Clear Bra //

10-30-2009, 02:19 PM	#8 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 54 Posts: 5,995 Drives: People to drink Rep Power: 33	Problems Okay folks, all is not well. Two things are going on. First, since getting the tune done, my car is doing something rather strange on cold starts. I start the car, wait my normal 30 seconds for everything to warm up, and when I slip it into 1st and tip the throttle in, there's like this weird dead spot. Gas pedal goes down a little, I start to feather the clutch in (same thing I've done a million times before), and nothing. The rpms just kinda don't go up, then all of a sudden, WHAM, the rpms jump up to where they ought to be and I go lurching forward like I've never driven stick before. But it only happens on cold starts, and goes away as soon as the car has warmed up a little more. Like by the time I get out of my neighborhood and make it to the first set of lights a half-mile from my subdivision, the problem is gone. I can launch as smoothly as always. No dead spot, no lag effect. The first time this happened was yesterday morning when I left to go to the gym. I thought maybe it was my imagination or maybe it was human error on my part. But this morning, it did the same thing. It even did it when I was done with my workout and left the gym to come back home (car sat for about 2 hours). Something is f'd up. The driveability of my car has been compromised. Okay, the second thing going on is this. I just got back from my DynoJet pulls. I have LOST approx. 15whp since my last DynoJet pull on the same DynoJet! Check it out. RunFiles 003 and 005 below are from today. RunFile 010 is from back in May. I know, I know . . . different pulls on different days, months apart, right? But look at the run conditions: The green and yellow lines are from today. The blue one is from May. It was cooler today than it was in May. Humidity is higher today than in May, but the correction factors should compensate for that. Take these two things together -- the weird dead spot on cold start, plus the bizarre dyno results, and I think I'm being fair in saying that something ain't right! I haven't been able to talk to Sharif yet, so I'm not sure what the next steps are. But right now, I'm about ready to have him flash my stock tune back in. This is not the desired result. __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

10-30-2009, 02:48 PM	#14 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 54 Posts: 5,995 Drives: People to drink Rep Power: 33	I'm making 318 on Forged's Dyno Dynamics and only 316 on a DynoJet and you think that sounds right? In any case, dyno numbers aren't my main concern right now. That dead spot needs to be addressed. I'm not sacrificing the driveability of my car for a piddly 6hp gain. __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

10-29-2009, 09:10 AM	#3 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	Torque is falling off near the end of the run though, so I doubt it would have benefited too much from running it into the 8k redline. I think they were wise and decided to leave the top end a little tame in order to increase longevity.

10-29-2009, 04:57 PM	#5 (permalink)
ssqpolo Track Member Join Date: Jan 2009 Location: Florida Posts: 882 Drives: '12 Black Nismo Rep Power: 268	awesome results. thanks for always being the first to get **** done on this place!! soo was is there a speed limiter? i didnt think there was.

10-30-2009, 02:31 PM	#12 (permalink)
jpit Enthusiast Member Join Date: Feb 2009 Location: Washington State Posts: 440 Drives: 370Z Tour MT w/Spt Rep Power: 17	One of the things that my Uprev tuner did was to give me five different maps controlled by the cruise control buttons: performance, economy, stock, valet, and theft. It is pretty easy to determine if there is a problem with the tune.

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