Craig Mack

When people ask me if I have/am going to upgrade my Camshafts, valves, fuel injectors, headers, ect. I tell them that the VQ engine already has these parts working as good or almost as good as any aftermarket part, and it doesnt need the upgrade. I know there are riceboys at my school who have these parts upgraded, and they do provide good gains. So why is it that you don't see people talkin' about how they've upgraded these parts at the .org ?

Also, is there any performance mod besides an intake you can do to the engine ?? (besides boost)

Sprint

iTrader: (10)

you can upgrade any part to the VQ engine..

Craig Mack

hmm, somehow I don't think that seems to help much...

nismo2020

iTrader: (1)

your right unless you have some unearthly turbo/nos/sc set up your internals and what not should work just fine.

DA-MAX

iTrader: (10)

ahhhhh......the beauty of the VG engine, cam selection galore!!!!! but yeah you can upgrade any part of the VQ, it'll just be custom, but you have to know the specs you want the "new" cams to have...

Craig Mack

So I am assuming the VQ already has these parts to be working at optimal levels, so an upgrade really wouldn't be worth it.

Am I correct?

Sprint

iTrader: (10)

what exactly do you want to know?

DA-MAX

iTrader: (10)

not true.....they are wokring at optimal levels but that doesn't mean there isn't room for improvement....

Craig Mack

If upgrading these parts of our engine provides any gains if n/a. And they do, are they worth it ? (ie Emax w/his headers. He spend alot of money, with minimal gains.)

Sprint

iTrader: (10)

more agresive cams would have a better gains.. stroking the engine to a 3.3 would also have a greater effect.. better internal parts with bigger injectors and advanced ignition and re-mapped fuel curves could bring your max to 270 hp NA.. so what do you want to know ?

Craig Mack

My @ss iz too poor for those upgradez

Evil Yak

i dunno much about this stuff, but its my understanding
that you can increase/decrease compression to your engine
depending on application, to get more power
cams can always be improved upon, because stock cams are
made for smoothness, not ***** out performance...
thats just an example, but yeah... thats the general idea

Sprint

iTrader: (10)

naturally a Turbo/Supercharger would do the same thing.. but this is if you were trying to build a monster NA car.. like DoninTexas is doing

1MAX2NV

iTrader: (5)

The main reason....No body would buy them. It just doesn't make any business sense for any company to develop these.

NickStam

iTrader: (3)

just import some vq30de-t parts.

ericdwong

Last I heard JWT may be developing some more aggressive cams for the VQ30de. The only problem is, we have FOUR cams! That will be expensive as *****.

Has anybody with a 5 gen thought about using a 4 gen cam? The 4 gen cam is "hotter" then the 5 gen cam, and could yield more power. how much power and if its worth it is debatable...

As for the injectors, I want to find out about this too, particularly for the 5 gen when the fuel rail and injectors or differently mounted. If I ever go into uncharted waters and attempt a 5 gen intake to 4 gen swap, this will be a concern. I hope to take this car to the extreme eventually, with my clutch/motor mount/Quaife differential project being phase one.

Nismo87SE

I can tell you why. There have been maybe 5 memebers total that don't run OEM cams on the org. All except 1 are 3rd/2nd gens. I remember Loren posting on chad's old bbs that the VQ cams are very mild. You can get cams made, several companys do regrinds but you should stay away from regrinds. Some grinds work and some don't not to mention you can't maintain the stock base circle pattern. The best way to do aftermarket cams is to get brand new billet cores and have them reground. As for the duration and lift you'd have to do your own research. Now getting cams reground at ISKY run $150 for the VG30E, so figure around $300 +/- for a VQ. But I was qoute at a local dealer that VQ cams run $200 each. So figure around $1000-1300 to prototype cams. Or you can just send your cams to get reground for $300 or so and test those out. You gains won't be fully registared either because the ignition timing can't be adjusted. In every cam swap I've seen on the SR20DE timing adjustment has had a great benefit.