NISMO Uprev tune no gain?

sandersd · 03-30-2015, 02:10 PM

Quote:

Originally Posted by 2011 Nismo#91

"the redline was raised to 8k rpm."
Please don't raise your redline unless you have replaced your oil pump with the nismo one (doesn't come stock on nismo Zs)
Most cars these days won't get any improvement in anything from the factory. Manufacturers have gotten much better over the years in getting as much power and fuel efficiency as possible.

Can one be purchased? I checked this Nismo site but one was only available for the VQ35. Be nice to have those heads and camshafts also...

sandersd · 03-30-2015, 02:13 PM

Found it! I wonder what pressure it runs...

synolimit · 03-30-2015, 03:19 PM

Quote:

Originally Posted by Jordo!

^^^ That's an interesting design change -- but is it "better" or just "different"?

What about the new design seems improved over the old? Could just be that they're sourcing the components from somewhere else.

Actually, on that note, does this mean you can't mix and match TB's from 2015 to earlier MY's?

I believe it's better. Out of the dozens of TB's I've sold, I've had to have at least 3 people take off their TPS housings and swap with the ones I sold them because they were bad. The old TPS housings seem away to sensitive. After a car crash where I get them, shipped to me, shipped to porter, shipped to customer, I think the old ones can break to easy. This new one seems pretty solid inside like its a big metal plate that carries the signal.

So far I'm not sure if you can swap. The 2015 I did got the old TB's and he is having a bouncing idle issue but ever so slightly. I sent his 2015 TB's to be sent out for porting and when we gets his back we'll see if the idle's better. I'm still wondering what a 2014 looks like though.

synolimit · 03-30-2015, 03:20 PM

Quote:

Originally Posted by sandersd

Scott, please explain what we are looking at. I assume TB is throttle body but that's obviously not a throttle body...

That's the black housing on the side of the TB. It holds the throttle position sensor inside it and what you're seeing.

synolimit · 03-30-2015, 03:24 PM

Quote:

Originally Posted by ANMVQ

No Dyno graph eithe,Scott@Synergyr? Come on man

Customer has it, I'll get it.

Quote:

Originally Posted by ANMVQ

BTW you gained 10 WHP and 10 WHTRQ, sound right to me for just a tune and nothing else.

No actually the 10/10 was tuned, parts added and tuned again. The 10/10 was ported parts only in 4th. I have no idea why on his 15 a tune and ported parts got zero in 5th.

Here you go.
The 306 was tuned in 4th, no parts added
The 316 was tuned in 4th, with parts added
The 324 was tuned in 5th, with parts added, just showing 5th shows more power then 4th.
And all in SAE!! In STD and 5th I believe he was 334/285.

ANMVQ · 03-30-2015, 03:47 PM

I know I huge PIA and I don't remember but do you make runs with each part added? IE , TB's #'s, Then intake mani #'s, then lower mani? I'm doing a set over the next few weeks, With "your" port G37 Stock VS the M370 this weekend then next weekend( I hope) runs dyno again after adding the ported lower. I was wondering if the TB's are worth it.

synolimit · 03-30-2015, 03:55 PM

Quote:

Originally Posted by ANMVQ

I know I huge PIA and I don't remember but do you make runs with each part added? IE , TB's #'s, Then intake mani #'s, then lower mani? I'm doing a set over the next few weeks, With "your" port G37 Stock VS the M370 this weekend then next weekend( I hope) runs dyno again after adding the ported lower. I was wondering if the TB's are worth it.

No because we know each parts only good for a few hp. Since all 3 are needed for 10hp it pretty much says what you need to do. Again for a solid 10hp at this price point I think its better than most $/hp parts out there at this level.

FPenvy · 03-30-2015, 04:20 PM

nismo 370 has extra HP over a regular 370 based on factory tune.......but we are curious as to why an aftermarket tune didn't yield big gains. hmmm.

also how is scotty still allowed on here under that name after they guy who owns synergy said scott isn't involved with that company anymore?

Jordo! · 03-30-2015, 05:29 PM

Quote:

Originally Posted by Scott@Synergy

I believe it's better. Out of the dozens of TB's I've sold, I've had to have at least 3 people take off their TPS housings and swap with the ones I sold them because they were bad. The old TPS housings seem away to sensitive. After a car crash where I get them, shipped to me, shipped to porter, shipped to customer, I think the old ones can break to easy. This new one seems pretty solid inside like its a big metal plate that carries the signal.

So far I'm not sure if you can swap. The 2015 I did got the old TB's and he is having a bouncing idle issue but ever so slightly. I sent his 2015 TB's to be sent out for porting and when we gets his back we'll see if the idle's better. I'm still wondering what a 2014 looks like though.

Hmm. I know a few folks have had mysterious TB failures over the years, so your observation that the new design is stouter/less sensitive is probably spot on. I wonder if there's a TSB mentioning the new design.

BehindSpace · 03-30-2015, 09:00 PM

it's a n/a engine already turned for premium fuel from the factory, what kind of gains did you expect?

ANMVQ · 03-31-2015, 08:53 AM

Quote:

Originally Posted by Scott@Synergy

No because we know each parts only good for a few hp. Since all 3 are needed for 10hp it pretty much says what you need to do. Again for a solid 10hp at this price point I think its better than most $/hp parts out there at this level.

So I'm only going to see a few WHP once I install the ported lower? An with the ported TB's, Upper and lower mani's Ill see a total of 10 WHP ? So with out the TB's(only thing I don't have) Ill see 8 WHP? LOL

JARblue · 03-31-2015, 09:02 AM

I got my tune on an essentially stock Z - R2C intakes were my only mod. I didn't notice any real power gains, and I didn't expect any. I got a very improved throttle response, which is what I wanted. I noticed a bit more low end torque as well.

Also, the nismo oil pump is only slightly stronger than the base model one. Neither can sustain 8K RPMs

2011 Nismo#91 · 03-31-2015, 10:35 AM

Quote:

Originally Posted by JARblue

Also, the nismo oil pump is only slightly stronger than the base model one. Neither can sustain 8K RPMs

Really, never heard anyone having problems at 8k. Only heard them explode at 8.5k+. Anyway there is a host of other issues with higher revs that an improved oil pump will not help with.
1. Poor stock oil pickup for track running - major oiling issues in high g turns
2. VQ37 heads with VVEL run very hot especially at higher RPMs. Hot heads not good. Especially when you run RPMs beyond design spec.

Chuck33079 · 03-31-2015, 10:37 AM

Quote:

Originally Posted by 2011 Nismo#91

Really, never heard anyone having problems at 8k. Only heard them explode at 8.5k+. Anyway there is a host of other issues with higher revs that an improved oil pump will not help with.
1. Poor stock oil pickup for track running - major oiling issues in high g turns
2. VQ37 heads with VVEL run very hot especially at higher RPMs. Hot heads not good. Especially when you run RPMs beyond design spec.

There have been quite a few failures due to running 8k rpm. Raising the redline is playing with fire. It's not worth it to gain a few hp.

Kamillio · 03-31-2015, 11:41 AM

Quote:

Originally Posted by Zoren 370

Op who did tune your Nismo here is South FL?

It was HP Logic in Royal Palm Beach.

Quote:

Originally Posted by 2011 Nismo#91

"the redline was raised to 8k rpm."
Please don't raise your redline unless you have replaced your oil pump with the nismo one (doesn't come stock on nismo Zs)
Most cars these days won't get any improvement in anything from the factory. Manufacturers have gotten much better over the years in getting as much power and fuel efficiency as possible.

Yeah, I didn't ask for the redline to be raised, they raised it and just told me they did it. At the time, I did not know the consequences of raising the redline could be that serious. They seemed confident about it and we talked about tracking the car too.

I think I will be contacting him to see if he can lower it back to stock redline!

03-30-2015, 02:13 PM	#17 (permalink)
sandersd Enthusiast Member Join Date: May 2014 Location: Houston, TX, USA Posts: 280 Drives: 2014 370z Nismo Rep Power: 11	Found it! I wonder what pressure it runs... __________________ 2014 370Z NISMO -- HKS Hi-Power Exhaust -- Swift Springs -- BC ER Coilovers -- SPL Suspension Components -- Nismo R-Tune Intake -- Seibon BD CF Hood

03-30-2015, 03:47 PM	#21 (permalink)
ANMVQ A True Z Fanatic Join Date: Mar 2011 Location: Framingham MA Posts: 2,732 Drives: 2014 Q50 AWD Rep Power: 19	I know I huge PIA and I don't remember but do you make runs with each part added? IE , TB's #'s, Then intake mani #'s, then lower mani? I'm doing a set over the next few weeks, With "your" port G37 Stock VS the M370 this weekend then next weekend( I hope) runs dyno again after adding the ported lower. I was wondering if the TB's are worth it. synolimit likes this. __________________ 14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

03-31-2015, 09:02 AM	#27 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	I got my tune on an essentially stock Z - R2C intakes were my only mod. I didn't notice any real power gains, and I didn't expect any. I got a very improved throttle response, which is what I wanted. I noticed a bit more low end torque as well. Also, the nismo oil pump is only slightly stronger than the base model one. Neither can sustain 8K RPMs __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

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