400 whp on N/A VQ possible?

AlWakRa · 10-30-2019, 06:17 PM

Quote:

Originally Posted by austins z

Thanks! Ended up placing 1st in the Gridlife Street class season against much higher hp cars.

For reference, the top guys I ran with this season:
Evo9 @ 360-370whp
Sti @ 370-380whp
Evo10 @ 390-400whp
M3 @ 330-340whp
My Z @ 320-330whp

The class says nothing about engine builds

so guess what the plans are for next season? Haha, this is why I have decided to go down this road. Plus if I ever get tired of GridLife, I can also add some slicks and aero and jump into NASA TT. GridLife street class is in for it next year if everything goes well this off season. They wont know what to do if I have the same power as they do!

Side note: comparing data to guys making only 30-40whp more than I do could gain anywhere from 1-2 seconds down the straightaways, depending on track, that I would have to claw back from shear corner speed. Maybe this extra power will allow me to not try to kill myself through the corners haha.

I can see where you hit a wall and feel the lack of power, you need to get every bit of milliseconds from turns, specially with some tracks where power can save a lot of time, this is something I feel as we have some long straights. I think 360-370whp with good torque can do wonders on our car.

Quote:

Originally Posted by Elmo370z

Soho did 391whp with a built motor.

I think this was on a low compression pistons that has been built for boost.

Hotrodz · 10-30-2019, 06:53 PM

You could just do an engine swap from Q60 or 50 for less money and get more performance. I understand the reliability question na vs boost but you would not need to do anything to make the motor less reliable than it already is from the factory.

Just putting it out there for argument sake!

Sent from my SM-G965U using Tapatalk

Elmo370z · 10-30-2019, 11:54 PM

Quote:

Originally Posted by AlWakRa

I can see where you hit a wall and feel the lack of power, you need to get every bit of milliseconds from turns, specially with some tracks where power can save a lot of time, this is something I feel as we have some long straights. I think 360-370whp with good torque can do wonders on our car.

I think this was on a low compression pistons that has been built for boost.

I believe the car was on 12:5:1

Elmo370z · 10-30-2019, 11:56 PM

Quote:

Originally Posted by austins z

Ahhh ok, yeah 391whp is awesome! I'd be super happy with those numbers, but I'm trying to get there without going with an aftermarket crank. Custom grind C2 cams (not the off the shelf ones), imsa spec 12.5:1 high compression pistons, vk56 valves, headers, intake porting, and e85 is the plans.

You very well might be close to 400whp. 15+ motors seems to make tad bit more power then the previous generations. I remember hearing they did some improvements in the cylinder heads.

Elmo370z · 10-31-2019, 07:31 AM

Or he could say faq it and copy what Sasha did with his motor, swap to Hr heads and runnit on a motec m150. No regrets, ditch the vvel like most race teams.

austins z · 10-31-2019, 07:35 AM

Quote:

Originally Posted by Hotrodz

You could just do an engine swap from Q60 or 50 for less money and get more performance. I understand the reliability question na vs boost but you would not need to do anything to make the motor less reliable than it already is from the factory.

Just putting it out there for argument sake!

Sent from my SM-G965U using Tapatalk

This might work awesome for most people, but in the world of racing and classing in my case, no boost is allowed on a factory NA car. I'm trying to take my already competitive street class car and make it dominant and hard to beat. It would be rad to have boost, just don't want to deal with the hassle of keeping it running and cooled.

austins z · 10-31-2019, 07:37 AM

Quote:

Originally Posted by Elmo370z

Or he could say faq it and copy what Sasha did with his motor, swap to Hr heads and runnit on a motec m150. No regrets, ditch the vvel like most race teams.

This is where I'm at, which is the more cost effective way to get to 400whp. If the vvel heads can take it and do it, ill keep them, if not I have to find someone willing to part with a set of heads.

Whjaxn17 · 10-31-2019, 09:06 AM

Quote:

Originally Posted by AlWakRa

I think this was on a low compression pistons that has been built for boost.

Quote:

Originally Posted by Elmo370z

I believe the car was on 12:5:1

It's factory 11:1 compression, just forged internals. It's a high power supercharged build they are/were working on. They were waiting on the blower, but had the engine buttoned up and just wanted to see what it would do NA since it still had the CR to make power. Customer gave the green light, so they let it eat. 391whp/315wtq

Whjaxn17 · 10-31-2019, 09:14 AM

Quote:

Originally Posted by austins z

This is where I'm at, which is the more cost effective way to get to 400whp. If the vvel heads can take it and do it, ill keep them, if not I have to find someone willing to part with a set of heads.

You can find HR heads on Ebay for like $500-600/set. That obviously excludes the cost of the aftermarket cams, but just the heads are something like $1,000/ea new.

Hotrodz · 10-31-2019, 09:57 AM

Quote:

Originally Posted by austins z

This might work awesome for most people, but in the world of racing and classing in my case, no boost is allowed on a factory NA car. I'm trying to take my already competitive street class car and make it dominant and hard to beat. It would be rad to have boost, just don't want to deal with the hassle of keeping it running and cooled.

I keep forgetting you are in street class and not track mod.

austins z · 10-31-2019, 10:43 AM

Quote:

Originally Posted by Hotrodz

I keep forgetting you are in street class and not track mod.

Yep! Arguably the most fun class to get into in GridLife. Its 100% the most competitive class and the cheapest to get into. Also for anyone not in the midwest like myself, GridLife is expanding! They are teasing going far south and further out west as well for the 2020 season. Schedule will come out after PRI this year.

Elmo370z · 10-31-2019, 04:46 PM

Quote:

Originally Posted by austins z

Yep! Arguably the most fun class to get into in GridLife. Its 100% the most competitive class and the cheapest to get into. Also for anyone not in the midwest like myself, GridLife is expanding! They are teasing going far south and further out west as well for the 2020 season. Schedule will come out after PRI this year.

If they do Sebring I’m in the street class.

austins z · 11-01-2019, 07:36 AM

Quote:

Originally Posted by Elmo370z

If they do Sebring I’m in the street class.

This was one of the rumored tracks, but we will see! I'd love to see more 370z's out!

Elmo370z · 11-01-2019, 07:44 AM

Quote:

Originally Posted by austins z

This was one of the rumored tracks, but we will see! I'd love to see more 370z's out!

About freaking time. I got some z’s To go out this weekend. First time I been on the track without my Z

Elmo370z · 11-01-2019, 07:45 AM

My all time
Goal is to run a 2:17 and under. Doran’s racing 370z time around the track. That’s gt3 times

10-30-2019, 06:53 PM	#347 (permalink)
Hotrodz Premium Member Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684384	You could just do an engine swap from Q60 or 50 for less money and get more performance. I understand the reliability question na vs boost but you would not need to do anything to make the motor less reliable than it already is from the factory. Just putting it out there for argument sake! Sent from my SM-G965U using Tapatalk Rusty, Elmo370z and Spooler like this. __________________ *Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:\|Fast Intentions 3" TT-TDX*\|SpecialtyZ/Fast Intentions 72 Row Oil Cooler\|SZ 6 Puck Clutch & Flywheel\|3GsCustoms\|Z1\|Wavetrac\|Hotchkis\|Whiteline \|Blitz\|Fortune Auto 500\|Fujimura\|SPL\|H&R\|TK\|TWM\|RPM Rollbar\|Sparco\|Next Level Performance\|TrackSpec\|AeroFlow Dynamics\|Pioneer\|

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10-31-2019, 07:31 AM	#350 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,707 Drives: 09 nissan 370z Sp M6 Rep Power: 295377	Or he could say faq it and copy what Sasha did with his motor, swap to Hr heads and runnit on a motec m150. No regrets, ditch the vvel like most race teams.

11-01-2019, 07:45 AM	#360 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,707 Drives: 09 nissan 370z Sp M6 Rep Power: 295377	My all time Goal is to run a 2:17 and under. Doran’s racing 370z time around the track. That’s gt3 times