What's the best way to achieve 50hp?

Nikkolai

Those aren't considered "bolt ons." The only other all motor VQ I know about that's close to 400 is the Nismo 380RS which is 380ps. True, forced induction isn't the only way to get over 400 but it's certainly the most cost effective. The problem with trying to go at or over 400 with the VQ37HR is the lack of research, development, and parts for all motor builds.

Red__Zed

Internals on an FI motor are no more prone to wear than internals on an FI engine laying similar numbers down.

I'd love to see pics/dynos for your build



pistons are not bolt ons

Besides, most of it is about getting usable power, not just power above 5 grand.

Cmike2780

Note: Every engine is different, but this should give you an idea of how much whp you would need. You need a baseline dyno on your specific car to get a more accurate reading of hp gains.

Assuming 350hp @the crank & 300hp baseline @the wheels.

350 bhp x Y (whp gain)/300 whp= X (bhp gain)

Example 1:
40 whp gain (assuming breathing mods & tune...just an example, I'm guessing here)

350 bhp x 40whp/300 whp= 46.67 bhp gain
Total bhp @ crank: 396.7 bhp

So roughly an additional 40 hp @ the wheels would get you close.

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[09][MB][6-Spd MT][Touring][Stillen Gen III][K&N][Borla CBE][Evo-R]

Synack

In NISMO's, its about 332whp to get 400bhp. Considering most NISMO's are in the 290whp range then a total of about 40whp is needed. So intake, hfc's, catback, tune. All of that should put you over if you do it right. "Right" meaning don't get cheap mods that net +5whp as opposed to a mod more like Stillen which are upwards of more than +15whp each. Just using Stillen as an example, there are other ways.

So get +40whp is the answer.

_ace_

Sounds like full bolt ons and a tune will get 400 bhp but the car just needs more air--tt, sc, nox--for 400 whp.

Any ITB systems in the works?

Cmike2780

A G37x dynoed at a shop by me @341whp. It had full bolt-on's. Stillen CBE, Intake, HFC's and an UpRev tune. It had a baseline of 315whp without the tune. I don't know how much it dynoed stock at this particular dyno, so its hard to calcultate hp @ the flywheel.

A tech said Z's had similar readings. Seeing as how our engines are pretty much the same, a 370 could easily see those gains without having to go FI. Some would say the shop's dyno tend to read a little high, but you really can't argue the gains over baseline with the tune. 400 hp with a 15% loss is about 340 whp.

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[09][MB][6-Spd MT][Touring][Stillen Gen III][K&N][Borla CBE][Evo-R]

Aidan

Stickers.

Lots and lots of stickers.

Econ

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2014 Triumph Thruxton 900
2013 Fiat 500 Abarth
2009 Nissan 370z

280z/300zx

CBE like Fast Intentions = ~7whp. (Over a regular 370z it's more like 15whp but since the Nismo comes with a nismo exhaust already the CBE is only slightly better for about 7whp)

Stillen Intake = ~7whp. (Yes over a stock car it will yeild 15whp but it's been shown that on a car that already has exhaust mods it only gives about 5-7whp)

HFC = ~5whp

Headers = ~12whp

Tune = ????? (The nismo already comes tunned, so how much more hp are you going to be able to squeeze out by getting an aftermarket tune? That becomes the questions. I wouldn't venture to say it's much. You might see some gains under the area of the curve but strtictly talking about peak hp, I'm not sure you'll see much. I know some here actually lost hp after getting a tune. Of course a lot has to be said about the tuners skills as well. I would say this mod is questionable for the NISMO in terms of gaining hp. Of course in regards to AF ratios and max performance it might be helpful.

Pulleys = ~5whp.

So thats your basic bolt on's. You are looking at about 36whp or close to 50 hp at the crank. Is it worth it? Thats up to you but honestly with the crappy traction this car has stock I wonder if there is much point to it witout also looking to upgrade the tires. Good luck

Remeber the sum of total performance gained is not equal to individual gains of parts totaled. As you start modding the hp gained typically decreases. Example: Stillen Gen 3's are good for about 15hp over stock. Stillen CBE is also good for about 15hp over stock. Combined you will only see about 20-23hp gained over stock, NOT 30hp.

forza370z

Bolt ons along won't gain you anything if it's not loss power... I had 1/2 MD spacer, AEM CAI, Fast Intentions HFC, Fast Intentions Carbon Fiber catback on my G35 coupe. Oh yeah guess what, the car pulls so slow at low rpm. The only thing increases is the exhaust note... A tune is a MUST. But still, it won't get you 50hp on a NA car. Forced induction is the way to go.

Nismo677

How dependable is the car with a supercharger on it?

vividracing

If you buy quality components and have a proper install done, it'll be as reliable as stock. This assumes you address the weaknesses in stock components that are stressed by an FI system since that's part of a proper installation.

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DJ-of-E

In your opinion, what would be considered "weaknesses in stock components."

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Liquid_G

6k miles so far for me. Not one issue. GTM kit.

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Skull Crusher

Bull Crap! For those who know what there doing with a motor it's not difficult.