UpRev ECU tune results for Semtex's Z

Uprev · 10-29-2009, 05:52 PM

Quote:

Originally Posted by Whtfairladyz

How did Sharif up the rev limiter? From what I understand from reading on here and talking to the guys at UpRev, you can't do that?

From watching my two buddy's dyno pulls with their Z's, they all shut down at around 7500 rpm.

You can raise the rev limiter, we don't suggest it. More so on the VHR motors. You don't just buy parts from the corner store to rebuild those heads. Nissan only sells the heads as a complete assembly and they are way out of line considering what the retail on the entire car is.

If you want to raise the rev limit to gain more power on the VQ motors, just do yourself the favor and have cash available to rebuild the motor when it grenades. As long as you understand that, the VHR motor makes power till well over 8k rpm.

ssqpolo · 10-29-2009, 05:57 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.

myfirstz · 10-30-2009, 12:13 AM

Quote:

Originally Posted by Sharif@Forged

The next highest 370Z I have tuned made right at 300whp so you definately have a very strong 370Z. Hope to see you at Road Atlanta next month.

Hey Sharif...Are you talking about my tune being the next highest? I want numbers like SEMTEX!!!

We basically have the same setup in terms of bolt ons, etc. Why the big difference? Just giving you a hard time, but I'm curious. Is it because he has a Blue Z???

For those reading this thread...below is my chart from Forged.

With AF

jpit · 10-30-2009, 01:13 AM

Does anyone know if these are SAE corrected numbers?

FricFrac · 10-30-2009, 02:46 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.

myfirstz · 10-30-2009, 06:39 AM

Quote:

Originally Posted by myfirstz

Hey Sharif...Are you talking about my tune being the next highest? I want numbers like SEMTEX!!!

We basically have the same setup in terms of bolt ons, etc. Why the big difference? Just giving you a hard time, but I'm curious. Is it because he has a Blue Z???

For those reading this thread...below is my chart from Forged.

With AF

I forgot to mention the lower number was before the UpRev Reflash and the higher number was after.

semtex · 10-30-2009, 08:22 AM

Quote:

Originally Posted by myfirstz

I forgot to mention the lower number was before the UpRev Reflash and the higher number was after.

You posted the same graph twice. Both are AF. I think you meant to post the first one as the one showing hp and torque, right?

myfirstz · 10-30-2009, 01:48 PM

Quote:

Originally Posted by semtex

You posted the same graph twice. Both are AF. I think you meant to post the first one as the one showing hp and torque, right?

SEMTEX: Your'e right. I posted the same graph twice. Opps..

Here's the other graph. What's your thoughts?

semtex · 10-30-2009, 02:42 PM

Quote:

Originally Posted by myfirstz

SEMTEX: Your'e right. I posted the same graph twice. Opps..

Here's the other graph. What's your thoughts?

My thoughts are . . . ugh . . I'm speechless right now. I'm about to post some updated info in a few mins to this thread. You'll see why I'm speechless.

semtex · 10-30-2009, 03:19 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.

Zeto · 10-30-2009, 03:22 PM

Quote:

Originally Posted by semtex

My thoughts are . . . ugh . . I'm speechless right now. I'm about to post some updated info in a few mins to this thread. You'll see why I'm speechless.

-Rep points for leaving us waiting

semtex · 10-30-2009, 03:24 PM

Quote:

Originally Posted by Zeto

-Rep points for leaving us waiting

Dude, I just posted above you.

Zeto · 10-30-2009, 03:28 PM

Quote:

Originally Posted by semtex

Dude, I just posted above you.

Sorry you got it in before me. Damn that suck though! Any ideas why it's acting wierd? Do you have any check engine lights?

jpit · 10-30-2009, 03:31 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.

cotizi · 10-30-2009, 03:33 PM

get a hold of him or call Rich at Uprev. That doesn't seem right.

10-30-2009, 01:13 AM	#34 (permalink)
jpit Enthusiast Member Join Date: Feb 2009 Location: Washington State Posts: 440 Drives: 370Z Tour MT w/Spt Rep Power: 16	Does anyone know if these are SAE corrected numbers? Last edited by jpit; 10-30-2009 at 02:06 AM.

10-30-2009, 02:46 AM	#35 (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, 03:19 PM	#40 (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: 32	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, 03:33 PM	#45 (permalink)
cotizi Enthusiast Member Join Date: Mar 2009 Location: Austin, Tx Posts: 391 Drives: 2012 VW GTI 6MT Rep Power: 217	get a hold of him or call Rich at Uprev. That doesn't seem right. __________________ Past - 2009 Silver 6MT Sport 370Z Current - 2012 VW GTI 6-Speed

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10-29-2009, 05:57 PM	#32 (permalink)
ssqpolo Track Member Join Date: Jan 2009 Location: Florida Posts: 882 Drives: '12 Black Nismo Rep Power: 267	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, 03:31 PM	#44 (permalink)
jpit Enthusiast Member Join Date: Feb 2009 Location: Washington State Posts: 440 Drives: 370Z Tour MT w/Spt Rep Power: 16	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.