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-   -   400 whp on N/A VQ possible? (http://www.the370z.com/engine-drivetrain/90020-400-whp-n-vq-possible.html)

Jordo! 12-03-2014 01:51 PM

Quote:

Originally Posted by 1slow370 (Post 3045813)
well my cars ACTUAL drivetrain loss was 16% as measured by the dyno. 286/332 so 430 but it actually made more because the graph cuts off at 8200rpm

Just to put it out there that the grand am cars are around 420wheel with HR heads at 9500rpm

He's referring to you :tiphat:

Yup, you should around 430 bhp on an engine dyno :eek:

1slow370 12-03-2014 03:58 PM

I know and now its on ebay so awesome fml i need to sell it and pick up like a mazda 2 or something.

Elmo370z 12-03-2014 06:27 PM

Why couldn't you do this 12 months ago!!!

Rusty 12-03-2014 06:41 PM

I've seen this so many times. Someone does a build-up. Dump a ton of money into it. Then turn around and sell it. Can never figure out why someone would do this. :icon14:

1slow370 12-03-2014 06:50 PM

CHange of heart? Change of Financial situation? tired of working 40+hours a week and having nothing but a car to show for it? depreciation is a bitch? there are a lot of reasons, at least i got one of my goals accomplished before i sell and can feel proud of building something unique and let the next guy push the limits on it.

Elmo370z 12-04-2014 07:35 AM

Well start selling cocaine have tons of money to spare and have a beast of a 370 lol

Elmo370z 12-04-2014 07:37 AM

That itch for tuning your car will never leave you, so you mind as well suck it up and keep the car the way it is for now and just start saving money for other things in your life.

Dcocci 12-04-2014 09:34 AM

400whp from a NA 3.7 liter would require like 125hp per liter at the crank (rough estimate). Think about that. That's Ferrari 458/ Porsche gt3 RS 4.0 type of efficiency...aka the biggest non FI hp per liter cars out there from any manufacturer. You'd be looking at alot of work and very high rev's. I'd say at least 9-9500 rpm. The higher revs alone would require alot of work, let alone making the engine breathe the way it should at 9500 rpm. Is it possible? sure, but it'll cost ya.

Masterbeatty 12-04-2014 10:43 AM

If our engines with supporting hardware can spin 9k +, what about the drive train? I would worry about the bearings, drive shaft and tranny. Plus the engine accessories.

Dcocci 12-04-2014 11:57 AM

All valid concerns. It would take R+D to figure out what can hold up and what can't. Throw that into the budget as well. I'd say for starters balancing the entire rotating assembly with a an extremely light flywheel and clutch attached would be important.

1slow370 12-04-2014 12:36 PM

Quote:

Originally Posted by Dcocci (Post 3047561)
All valid concerns. It would take R+D to figure out what can hold up and what can't. Throw that into the budget as well. I'd say for starters balancing the entire rotating assembly with a an extremely light flywheel and clutch attached would be important.

Awesome words bro, the accesories are fine unless you are going racing, and then you would want to switch to a lightweight racing alternator anyway, the a/c usually has to die to fit the oil pump, and the ps pump is fine, the drive shaft and rear are fine, the trans is just as crappy as it is now but it doesn't implode or anything, and what you really need to do is get aftermarket rods, a slight bump to the valve spring, balance it, run the 282 duration cams, and have good manifolds intake exhaust. I wish there was a dyna pack near me so i could throw down 400+ just like the other NA builds and call it a day.

If you want to know what that level of NA power feels like just buy my car.
( Click to show/hide )
It feels GOOOOOOD

Spooler 12-04-2014 07:31 PM

You will regret selling it, just keep it. Ask me how I know.

1slow370 12-04-2014 07:41 PM

It unfortunately must get sold

sandersd 12-04-2014 08:42 PM

Not familiar with these acronyms
 
What are DE and HR heads?

Jordo! 12-04-2014 09:04 PM

Sell it.

You can (and probably will) do another car project in the future.

If its gone from labor of love to a money pit, time to sell.


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