400 whp on N/A VQ possible?

Chuck33079 · 05-15-2014, 11:41 PM

Quote:

Originally Posted by Elmo370z

I don't think you need 15k to make 400 whp on a NA build. Now there isn't to much information out there about the JUN cams; full bolt on's that cam and a great tuner could come close to the 400 mark, don't you think? Noone out there with money to play with has even attempted to try and build the car a VQ motor to make 400 whp (NA), "MOST" everyone here in the states wants power fast so they go with F.I. Anyone have any information on the tuners in Japan or do they not like releasing that kind of information out?

Navyboy has the jun cams and built heads and is around the 315ish mark. They're not the magic bullet you think they are.

Eclipz · 05-16-2014, 10:10 AM

Quote:

Originally Posted by Chuck33079

Navyboy has the jun cams and built heads and is around the 315ish mark. They're not the magic bullet you think they are.

Navyboy's lower than expected reading is probably because of the tune, not necessarily the cams themselves. I'd imagine the hardest thing about trying to get to 400 HP NA is the tuning.

Jordo! · 05-16-2014, 03:03 AM

Quote:

Originally Posted by Elmo370z

I don't think you need 15k to make 400 whp on a NA build. Now there isn't to much information out there about the JUN cams; full bolt on's that cam and a great tuner could come close to the 400 mark, don't you think? Noone out there with money to play with has even attempted to try and build the car a VQ motor to make 400 whp (NA), "MOST" everyone here in the states wants power fast so they go with F.I. Anyone have any information on the tuners in Japan or do they not like releasing that kind of information out?

HP is torque over time.

If the engine could maintain peak torque up to, say, 10K or 12K RPM, you might very well see 400 whp, with the right valvetrain, headers, etc etc.. I just threw out 15K off the top of my head, but higher powered F1 engines rev verrrrrry high to make that power.

Of course, the oil pump on our motors seems to kerplode at a mere 8K RPM, so...

jcosta79 · 05-17-2014, 11:44 PM

Quote:

Originally Posted by Elmo370z

I don't think you need 15k to make 400 whp on a NA build.

You're right. You need twice that amount.

Quote:

Now there isn't to much information out there about the JUN cams; full bolt on's that cam and a great tuner could come close to the 400 mark, don't you think?

No.

Quote:

No one out there with money to play with has even attempted to try and build the car a VQ motor to make 400 whp (NA), "MOST" everyone here in the states wants power fast so they go with F.I.

There's a reason why.

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Eclipz · 05-15-2014, 10:06 PM

With a 400 hp na build you will probably end up increasing the red line and end up increasing idling rpm which is not good for daily driving

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Elmo370z · 05-15-2014, 10:15 PM

That's what I was afraid of hearing. the highest NA is like 340-350 on pump gas, I just believe that you can squeeze 50 more whp without sacrificing drivability. Wouldn't you agree?

Chuck33079 · 05-15-2014, 11:40 PM

Quote:

Originally Posted by Elmo370z

That's what I was afraid of hearing. the highest NA is like 340-350 on pump gas, I just believe that you can squeeze 50 more whp without sacrificing drivability. Wouldn't you agree?

What are you basing the idea that there's another 50whp in there? If you go through shamus build, he'll be close to 400whp with a 4.0 on e85. Pm him and ask costs.

jcosta79 · 05-17-2014, 11:38 PM

Quote:

Originally Posted by Elmo370z

I just believe that you can squeeze 50 more whp without sacrificing drivability.

From where? Not even on big american engines can you make gains of 50 whp without sacrificing some measure of drivability. It ain't happening on the Z. Not without a stroker crank, some big nasty cams, higher compression, headwork, etc...

You can't squeeze blood from a turnip.

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Ronin06 · 10-22-2020, 04:20 PM

bhp maybe, but whp not with bolt on mods.

Hotrodz · 10-22-2020, 07:07 PM

Quote:

Originally Posted by Ronin06

bhp maybe, but whp not with bolt on mods.

LMAO, if you don't know the history on this build or the person that is responsible for it, you are sadly mistaken. If it gonna get done this build has a better chance than any so far.

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Elmo370z · 11-02-2020, 03:12 PM

Quote:

Originally Posted by Ronin06

bhp maybe, but whp not with bolt on mods.

Karen go home

09nismo498 · 05-15-2014, 10:26 PM

just get that mad vtec yo!

Elmo370z · 05-17-2014, 01:44 PM

@ chuck someone in N.J. got 325 whp with and UpRev, exhaust , and intake. I have to agree with the statement made by Eclipz,. I'm may not be the smartest person about tuning cars, but I'm no dummy either and to back my additional 50whp somewhere in the motor, nobody has even tried without doing something crazy to the motor. I need to hit the lotto so I can test my hypothesis out.

falconfixer · 05-17-2014, 01:58 PM

the370z.com: that dere girl got herpes.

Elmo370z: ain't nobody fucked her so how do you know she got herpes?

the370z.com: she been to a buncha doctors and they all said she got the worst herpes of anything they ever seen.

Elmo370z: I don't believe doctors, Imma fuck her anyways...rawdog nonetheless.

SouthArk370Z · 05-18-2014, 12:39 AM

Back in the '60s, when fuel economy wasn't a big deal, car manufacturers were pretty sloppy and one could take a stock engine, slap a bigger carb and manifolds on it, maybe a hotter cam, and you could expect some pretty large gains. Add a basic balance/blue-print/port/polish job (not exactly a bolt-on but you don't have to buy a lot of expensive parts, either) and it was not unheard of to boost HP by 25% or more.

The days of getting big gains with bolt-ons and cheap mods are gone. The manufacturers have already picked the low-hanging fruit.

As others have said: if you want big gains, expect to spend big money.

05-15-2014, 10:06 PM	#5 (permalink)
Eclipz Enthusiast Member Join Date: Dec 2013 Location: Tampa Posts: 360 Drives: 06 Eclipse GS Rep Power: 12	With a 400 hp na build you will probably end up increasing the red line and end up increasing idling rpm which is not good for daily driving Sent from my SGH-T999L using Tapatalk xxZxx likes this.

05-15-2014, 10:26 PM	#12 (permalink)
09nismo498 Base Member Join Date: Sep 2010 Location: Chicago burbs Posts: 207 Drives: 14 GTR Rep Power: 16	just get that mad vtec yo! jcosta79 likes this. __________________ 2013 370z Nismo Turbo 2017 Lexus IS200T F Sport (DD)

05-17-2014, 01:58 PM	#14 (permalink)
falconfixer Track Member Join Date: Feb 2012 Location: 10aC Posts: 978 Drives: Taco Rep Power: 77	the370z.com: that dere girl got herpes. Elmo370z: ain't nobody fucked her so how do you know she got herpes? the370z.com: she been to a buncha doctors and they all said she got the worst herpes of anything they ever seen. Elmo370z: I don't believe doctors, Imma fuck her anyways...rawdog nonetheless. FL 4Motion, gbrettin, ghostbusters and 8 others like this. __________________ Bitch ex wife's scumbag lawyer made sure this went away.

05-18-2014, 12:39 AM	#15 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	Back in the '60s, when fuel economy wasn't a big deal, car manufacturers were pretty sloppy and one could take a stock engine, slap a bigger carb and manifolds on it, maybe a hotter cam, and you could expect some pretty large gains. Add a basic balance/blue-print/port/polish job (not exactly a bolt-on but you don't have to buy a lot of expensive parts, either) and it was not unheard of to boost HP by 25% or more. The days of getting big gains with bolt-ons and cheap mods are gone. The manufacturers have already picked the low-hanging fruit. As others have said: if you want big gains, expect to spend big money. jrb55gh and SterlingDrive like this. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

05-15-2014, 10:15 PM	#6 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,724 Drives: 09 nissan 370z Sp M6 Rep Power: 295378	That's what I was afraid of hearing. the highest NA is like 340-350 on pump gas, I just believe that you can squeeze 50 more whp without sacrificing drivability. Wouldn't you agree?

10-22-2020, 04:20 PM	#9 (permalink)
Ronin06 Base Member Join Date: Mar 2014 Location: Urbandale, Iowa Posts: 87 Drives: 14 silver sport 370Z Rep Power: 12	bhp maybe, but whp not with bolt on mods.

05-17-2014, 01:44 PM	#13 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,724 Drives: 09 nissan 370z Sp M6 Rep Power: 295378	@ chuck someone in N.J. got 325 whp with and UpRev, exhaust , and intake. I have to agree with the statement made by Eclipz,. I'm may not be the smartest person about tuning cars, but I'm no dummy either and to back my additional 50whp somewhere in the motor, nobody has even tried without doing something crazy to the motor. I need to hit the lotto so I can test my hypothesis out.