next horsepower up grade????

17 replies [Last post]
Joined: 10/05/2008
Posts: 49

i have a 2007 350z...just did the duel long pipe and intake upgrade..what would be next???

Joined: 04/17/2007
Posts: 1035
Re: next horsepower up grade????

Buy me one.

Joined: 12/25/2005
Posts: 5432
Re: next horsepower up grade????

next would be an APS twin turbo.

Currently Zless
Z's I've owned:

'71 240Z White
'73 240Z Orange
'05 350Z Chrome Silver Touring
http://www.henryism.com

Joined: 09/18/2005
Posts: 7776
Re: next horsepower up grade????

^^^
Agree wit Justin.

----------
1985 300ZX n/a

See my Z project

Joined: 04/17/2007
Posts: 1035
Re: next horsepower up grade????

yeah, that's only 12k

Joined: 09/18/2005
Posts: 7776
Re: next horsepower up grade????

12K isn't that bad for the versatility of a turbocharging system on an engine that wasn't meant for it.

Or you could custom engineer your own system and have it built for a lot less... but 95% of people will just buy the pre-built kit and pay the premium price.

Joined: 01/13/2005
Posts: 10494
Re: next horsepower up grade????

reading about APS reminds me of More Power, RIP

Joined: 09/18/2005
Posts: 7776
Re: next horsepower up grade????

I know...

I miss that guy and some crazy long conversations we had. :(

RIP

Joined: 06/11/2003
Posts: 13045
Re: next horsepower up grade????

^Ahhahaha, throwback!

Nozzle first.

Joined: 02/06/2001
Posts: 4263
Re: next horsepower up grade????

Not to mention the VQ35DE has oil consumption issues already, without a non-factory turbo on it. Heh.

none

Joined: 12/17/2007
Posts: 354
Re: next horsepower up grade????

z32d00d wrote:

Not to mention the VQ35DE has oil consumption issues already

The non rev-up DE motor is fine. It's the re-up DE motor that has the oil consumption issues.

Joined: 02/06/2001
Posts: 4263
Re: next horsepower up grade????

Quote:

The non rev-up DE motor is fine. It's the re-up DE motor that has the oil consumption issues.

All VQ35s have the same design problem, including the V2s (which are supposedly somewhat better), it just varies based on the time frame of manufacture of the engine, the transmission and the driver.

For example the original 2003-2004s, which are not rev-ups, have oil consumption issues as well. I know an owner whose car is digesting 1 qt per 1000 miles and he hasn't modified the car at all. The problem seems to be loading the engine while downshifting causing pressure that creates blow-by, but that isn't the entire story. That is why automatics aren't showing the issue nearly as often.

The only safe engine that I know of is the VQ37, which apparently has been redesigned effectively.

Joined: 09/18/2005
Posts: 7776
Re: next horsepower up grade????

Probably engine vacuum pulling oil past the valve seals or something. Its too bad VQ's are too new. If this were a Z31 forum, somebody would be ripping their own engine apart already and experimenting with their own valve seals or engine vacuum control valves and what not to see how to correct the problem.

Well, once the 370Z is in full bloom and resale value on 350's gets low enough, perhaps I'll have to be that guy who takes his VQ apart to see whats up...

Joined: 02/06/2001
Posts: 4263
Re: next horsepower up grade????

Yes, it would be good to get a fix for the consumption once and for all. I suspect Nissan knows what needs to be done, but it is probably too costly for them to fix it (and it would create a demand for "new" engines on old cars).

If you decide to do it, let me know ;)

Joined: 07/04/2008
Posts: 172
Re: next horsepower up grade????

Hmmm..I check the oil level often and have not found this problem with my car.
Where is the oil going?

'04.5 350Z Touring, Liquid Aluminum

Joined: 09/18/2005
Posts: 7776
Re: next horsepower up grade????

dommer331 Wrote:
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> Hmmm..I check the oil level often and have not
> found this problem with my car.
> Where is the oil going?

There's only two ways an engine loses oil:
1) oil leaks
2) it gets into the cylinder and burned up.

Its normal and necessary for really small amounts of oil to be burned in the cylinders on any engine, but whats happening on many VQ's is more than normal. Our VQ (a 2003 G35 Sedan) also consumes more oil than I feel it should (1/2 - 2/3 quart in a change) but it also has 110,000 miles on it as well and still going strong... Ours is a regular non-rev up VQ35DE, except it makes a little less power than the 350Z's version.

Joined: 12/13/2002
Posts: 191
Re: next horsepower up grade????

speedzracer62 Wrote:
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> i have a 2007 350z...just did the duel long pipe
> and intake upgrade..what would be next???

To answer your question, an aftermarket exhaust. I have an '07 and put a Nismo exhaust which I love. It's not too loud but it is louder than the Nismo I had on my '03 Z.

'07 Redline Touring 6 spd w/Nismo exhaust, Nismo Dual intake, 19" TSW Cadwell's w/ Falken 452's, Stillen type 1 spoiler & rear diffuser, Veilside side wings, CF lip cover, tint, shorty antenna, & Colgan bra; and '07 Murano SL AWD w/ Gibson exhaust,JWT pop

Joined: 04/20/2007
Posts: 310
Re: next horsepower up grade????

I'd look at a plenum spacer as a next step.

Ultra Yellow '05 350Z Roadster, Touring

Nismo: Headers, cams, CAI, flywheel, clutch disc & cover, braided steel clutch hose, 1.5 LSD w/finned cover, oil filter, power steering cooler, cat-back exhaust, radiator cap, thermostat, front & rear sway bars