400 whp on N/A VQ possible?

Whjaxn17 · 10-30-2019, 08:48 AM

Quote:

Originally Posted by austins z

Are you the guy that has the "hp record" that z1 tuned and video'd? I thought you had eps TB's? Did you tune on them? Did you take them back off and re-tune? I personally will not be using bigger throttle bodies on my build.

Yes, that's me. I did have them on there. The car would rev between shifts, it idled retarded high on startup (cold or not), and several times when I left it running to just run in a store for a drink or somthing, I'd come back out and my car would basically be 2 stepping. It would rev and hold, and then quit. Rev, hold, and quit at about 2k rpm for a couple seconds. I switched them out for my factory set that I held onto just in case due to hearing the not so good stories about these. The car has been completely flawless since.

So, long story short, yes, the record was broken with them, but no, they are no longer on the car. I couldn't tell any difference, though.

Somebody else beat my numbers and took over the NA title anyway, but I have no plans on chasing it.

austins z · 10-30-2019, 09:04 AM

Quote:

Originally Posted by Whjaxn17

Yes, that's me. I did have them on there. The car would rev between shifts, it idled retarded high on startup (cold or not), and several times when I left it running to just run in a store for a drink or somthing, I'd come back out and my car would basically be 2 stepping. It would rev and hold, and then quit. Rev, hold, and quit at about 2k rpm for a couple seconds. I switched them out for my factory set that I held onto just in case due to hearing the not so good stories about these. The car has been completely flawless since.

So, long story short, yes, the record was broken with them, but no, they are no longer on the car. I couldn't tell any difference, though.

Somebody else beat my numbers and took over the NA title anyway, but I have no plans on chasing it.

Who publicly has higher numbers than you do NA? I only know of a few race teams so far, but those are all HR head swap guys.

Elmo370z · 10-30-2019, 11:52 AM

Quote:

Originally Posted by Whjaxn17

Yes, that's me. I did have them on there. The car would rev between shifts, it idled retarded high on startup (cold or not), and several times when I left it running to just run in a store for a drink or somthing, I'd come back out and my car would basically be 2 stepping. It would rev and hold, and then quit. Rev, hold, and quit at about 2k rpm for a couple seconds. I switched them out for my factory set that I held onto just in case due to hearing the not so good stories about these. The car has been completely flawless since.

So, long story short, yes, the record was broken with them, but no, they are no longer on the car. I couldn't tell any difference, though.

Somebody else beat my numbers and took over the NA title anyway, but I have no plans on chasing it.

Soho did 391whp with a built motor.

Elmo370z · 10-30-2019, 11:55 AM

Quote:

Originally Posted by Whjaxn17

Nik Sohoritis and myself both are content with stock TBs and I personally recommend steering wide, WIDE clear of the EPS set. My set was promptly disposed of and Z1 told me they've had several sets come back. They won't reset and had my car acting way funky. I reached out to EPS about the issue and he basically told me Jon must not know how to tune.

Do what you like with your money, but EPS will never see another cent of mine.

Yeah I sold my pair as well, myntuner said sell now.

vtec to vvel · 10-29-2019, 09:58 PM

With the right amount of money, anything is possible.

AlWakRa · 10-30-2019, 06:10 AM

Austin, good to see you here. Great job on your Gridlife participation

My assumption about engine power, with a 4.0L stroker and cams, our engines can hit 400whp, but this require a lot of money and a good engine builder, and race fuel, I am entertaining the idea of trying this route to see if my assumption are right, nobody tried this route for NA build, even for FI, nobody dynoed a built engine before adding snails.

austins z · 10-30-2019, 08:28 AM

Quote:

Originally Posted by AlWakRa

Austin, good to see you here. Great job on your Gridlife participation

My assumption about engine power, with a 4.0L stroker and cams, our engines can hit 400whp, but this require a lot of money and a good engine builder, and race fuel, I am entertaining the idea of trying this route to see if my assumption are right, nobody tried this route for NA build, even for FI, nobody dynoed a built engine before adding snails.

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.

Elmo370z · 10-30-2019, 11:51 AM

Wow talk about bringing my old thread back from the dead. I was going through with the build, even brought the 5k to put down on the billet crank. Just not worth the money if I wasn’t going to up the compression to something that would only run race gas, and if I want to run pump 93 I would have to run some sort of stand-alone then tuning and finder a tuner to keep up with the updates swayed me
Into going boost and just running wastegate during track events

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

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.

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.

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, 07:37 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.

10-29-2019, 09:58 PM	#5 (permalink)
vtec to vvel A True Z Fanatic Join Date: Feb 2015 Location: In a house Posts: 4,022 Drives: Z Rep Power: 502911	With the right amount of money, anything is possible. AlWakRa, Eagle and Rusty like this.

10-30-2019, 06:10 AM	#6 (permalink)
AlWakRa Track Member Join Date: Oct 2010 Location: Qatar Posts: 600 Drives: 10 370Z PW 6MT Rep Power: 13450	Austin, good to see you here. Great job on your Gridlife participation My assumption about engine power, with a 4.0L stroker and cams, our engines can hit 400whp, but this require a lot of money and a good engine builder, and race fuel, I am entertaining the idea of trying this route to see if my assumption are right, nobody tried this route for NA build, even for FI, nobody dynoed a built engine before adding snails. Rusty and austins z like this. __________________ 2010 370Z Touring Sport Pearl White 6MT Powered by: Fast Intentions - Motordyne - Stillen - OS Giken - CJ Motorsports - Mishimoto - MCA Suspension - SPL - SuperPRO - RJM - Z1 Motorsport - Zspeed - Volk My Humble Journals

10-30-2019, 11:51 AM	#8 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,727 Drives: 09 nissan 370z Sp M6 Rep Power: 295379	Wow talk about bringing my old thread back from the dead. I was going through with the build, even brought the 5k to put down on the billet crank. Just not worth the money if I wasn’t going to up the compression to something that would only run race gas, and if I want to run pump 93 I would have to run some sort of stand-alone then tuning and finder a tuner to keep up with the updates swayed me Into going boost and just running wastegate during track events austins z likes this. Last edited by Elmo370z; 10-30-2019 at 11:51 PM.

10-30-2019, 06:53 PM	#9 (permalink)
Hotrodz A True Z Fanatic Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684385	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 __________________ *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\|

10-31-2019, 07:31 AM	#14 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,727 Drives: 09 nissan 370z Sp M6 Rep Power: 295379	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.