Jim Wolf Cam testing for the VQ37VHR -- Results inside!

SG4247 · 01-04-2019, 12:25 PM

Quote:

Originally Posted by Spooler

Ecutek is fine. You are over thinking this.

I hope you are right, but:

My 50 plus track runs, 20 data log files and three dyno sessions say otherwise..

I’ve built and flywheel dynoed lots of NA motors, some over 1000 hp.

https://m.youtube.com/watch?v=43ihGAFOqC4

I really think my 370z motor has a bug somewhere...I just need to find it.

Whjaxn17 · 01-04-2019, 12:31 PM

Quote:

Originally Posted by SG4247

In other words, I like to see Z1 repeat the dyno testing on a different car (engine) with all of the same mods.

This would determine if the results were repeatable, or if your results were just the will of the Z gods.

If they could duplicate the results on a different car, that would indicate that the recipe of mods is very well matched and complemented, i.e. “the perfect set up”.

Whoa, slow down. Just because I have the target on my back now doesn't mean I'm ready for yall to start shooting just yet

Let me enjoy it for a while haha

Spooler · 01-04-2019, 12:35 PM

Quote:

Originally Posted by Whjaxn17

Whoa, slow down. Just because I have the target on my back now doesn't mean I'm ready for yall to start shooting just yet

Let me enjoy it for a while haha

Johnnydrama has a shot to get you. LOL He is not doing E85 though and it looks like that gained you 10hp.

Whjaxn17 · 01-04-2019, 12:38 PM

Quote:

Originally Posted by Spooler

Johnnydrama has a shot to get you. LOL He is not doing E85 though and it looks like that gained you 10hp.

Jon told me he still believes single exhausts make more power, so maybe mine still has more in it, I don't know. If so, I'm sure it's marginal. Maybe round out to 380 and 300...I just can't quite wrap my head around that. Singles making more power doesn't make sense to me.

bmstitt · 01-04-2019, 04:29 PM

How much of a pain was it to install the z1 intake upgrade with the dewla air guide? I was thinking of doing the same, but wasn’t sure there would be room, even with a modified crash bar.

Quote:

Originally Posted by johnnydrama

I will have a repeat of the same mods minus the e85 and injectors, I am staying on 93 octane. It will be installed and tuned by Dynosty in the coming months, don't have a firm date on the calendar yet.

I made 341whp/271wtq with the following list of power or power related mods:

Z1 Intakes
Z1 Plenum Power Mod
Motordyne LTH
Fast Intentions Exhaust
Stillen Lightweight Pulley
Z1 Lightweight Flywheel

The next round will include the following list of upgrades:

Z1 Race Intakes Upgrade (Installed)
Z1 Ported Lower Intake (Installed)
Dewla Dezign Cold Air Intake Guide (Installed)
Z1 2-piece Lightweight Rotors (Installing this weekend)
Jim Wolf C2 Cams (Pending installation and tune at Dynosty)

I was also going to do EPS Big Bore Throttle Bodies but both Z1 and Dynosty have recommended staying away from them due to poor idle quality and reliability issues.

After the tune is done, I will be going back and upgrading the LSD and final drive to 4.08s. At which point my N/A build should be complete... yea right.

I will share with everyone the results of the C2 cams once completed.

johnnydrama · 01-04-2019, 05:39 PM

Quote:

Originally Posted by bmstitt

How much of a pain was it to install the z1 intake upgrade with the dewla air guide? I was thinking of doing the same, but wasn’t sure there would be room, even with a modified crash bar.

I was worried as well but it was not an issue whatsoever, they do not interfere with each other.

Whjaxn17 · 01-04-2019, 11:36 PM

Quote:

Originally Posted by bmstitt

How much of a pain was it to install the z1 intake upgrade with the dewla air guide? I was thinking of doing the same, but wasn’t sure there would be room, even with a modified crash bar.

I'm actually running the FI tow bar. I'm not entirely sure how they mounted them when it was reassembled at Z1, but Injust had them resting on the bar. The air guide was bolted in at the top. It screws into the bottom of the stock bar, but that's not an option w/ the FI bar. I used a stainless steel zip tie through the hole in the bottom of the guide and the tow hook hole, pulled it as tight as I could and hit it w/ some black spray paint. It was pretty solid that way, but I imagine Z1 screwed it down a little better.

NorthStyle · 01-05-2019, 11:23 AM

What did Z1 and Dynosty mean by poor idle quality and reliability issues? I've been running the EPS TBs for almost 2 years without any issues and I was remotely tuned by Seb.

SG4247 · 01-05-2019, 12:00 PM

Seb told me he didnt really like them EPS TBs either...sometimes they want to fight each other, and getting the idle stable is difficult.

johnnydrama · 01-05-2019, 12:02 PM

Quote:

Originally Posted by NorthStyle

What did Z1 and Dynosty mean by poor idle quality and reliability issues? I've been running the EPS TBs for almost 2 years without any issues and I was remotely tuned by Seb.

They didn’t go into a lot of detail other than what I stated in the post above... just that they ve seen issues with them on occasion. I don’t want to believe them because I want to try and squeeze every last hp out of it but the fact they both stated it without me asking when I mentioned installing them has me shying away.

JLarson · 01-05-2019, 12:15 PM

Have you considered the slightly oversize TBs provided by Syno? 63mm, maybe not as much of an issue as 70 and still less of a "neck down"

johnnydrama · 01-05-2019, 12:21 PM

Quote:

Originally Posted by JLarson

Have you considered the slightly oversize TBs provided by Syno? 63mm, maybe not as much of an issue as 70 and still less of a "neck down"

I had not because I wasn’t aware until doing a quick search after your post. Sounds like a more viable path with less risk, more economical as well. Thanks for the recommendation!

Spartan 1771 · 01-05-2019, 12:52 PM

Quote:

Originally Posted by johnnydrama

I had not because I wasn’t aware until doing a quick search after your post. Sounds like a more viable path with less risk, more economical as well. Thanks for the recommendation!

My tuner warned me about larger throttle bodies. I ignored him, had Syno (Scott) port and polish my stock TBs out to 63mm, did a bunch of other mods and then got a tune. Not only do they work great, my Z was one of the higher HP NA 370s my Tuner had ever worked on. Even without a tune they didn't cause any idle issues.

JLarson · 01-05-2019, 01:27 PM

Quote:

Originally Posted by Spartan 1771

My tuner warned me about larger throttle bodies. I ignored him, had Syno (Scott) port and polish my stock TBs out to 63mm, did a bunch of other mods and then got a tune. Not only do they work great, my Z was one of the higher HP NA 370s my Tuner had ever worked on. Even without a tune they didn't cause any idle issues.

I did have to do the idle relearn with mine, but yeah, no other issues for me. I ran them for about 3 weeks prior to my tune with no problem. I was 334 whp/278 wtq prior to adding my LW flywheel, so sitting pretty close to 340 whp at this point.

bmstitt · 01-06-2019, 02:07 PM

Quote:

Originally Posted by Whjaxn17

I'm actually running the FI tow bar. I'm not entirely sure how they mounted them when it was reassembled at Z1, but Injust had them resting on the bar. The air guide was bolted in at the top. It screws into the bottom of the stock bar, but that's not an option w/ the FI bar. I used a stainless steel zip tie through the hole in the bottom of the guide and the tow hook hole, pulled it as tight as I could and hit it w/ some black spray paint. It was pretty solid that way, but I imagine Z1 screwed it down a little better.

Nice! Glad to hear the intake upgrade and air guide work together with either the Z1 bar or the tow bar. I may have to add these...

01-05-2019, 12:15 PM	#446 (permalink)
JLarson A True Z Fanatic Join Date: Jun 2017 Location: Media, PA Posts: 4,074 Drives: 14 Nissan 370z MR M6 Rep Power: 2684369	Have you considered the slightly oversize TBs provided by Syno? 63mm, maybe not as much of an issue as 70 and still less of a "neck down" johnnydrama likes this. __________________ 2014 370z Touring Sport Magma Red MT // BP Single Turbo 6467 // 63mm TB's // Z1 Ported Upper Mani // RJM Pedal // Zspeed Stage 3 Clutch // 526 WHP, 451 WTQ 2006 350z (Sold) // 1990 300zx (Sold) // 1985 300zx 2+2 (Sold)

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01-05-2019, 11:23 AM	#443 (permalink)
NorthStyle A True Z Fanatic Join Date: Aug 2015 Location: Deutschland + SC/FL USA Posts: 1,235 Drives: 2011 370Z Nismo Rep Power: 24276	What did Z1 and Dynosty mean by poor idle quality and reliability issues? I've been running the EPS TBs for almost 2 years without any issues and I was remotely tuned by Seb.

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