mighteatyou

Basically i wanna buy the camsprings with the ECU so that i can get a higher rev limiter like maybe 7400 safely. I plan on getting cams soon in the future but since the ecu wont needed to be upgraded after the cams are installed it will be fine.

does anyone see any problem with getting camsprings with the ECU? do you think the camsprings would support the valvetrain up to 7400 rpms?

Nealoc187

iTrader: (23)

They are called valvesprings, and 7400 should be cake. Hell you might even be safe with 7400rpm on stock valvesprings. Tons of people are using 7200rpm rev limiters with stock valvesprings without any hint of a problem. If you are getting valvesprings personally I'd go higher than a 7400 rev limiter. Since you are supercharged though just be conscious of overspinning your blower.

IceY2K1

iTrader: (3)

You don't really need valve springs for <7500rpm with stock cams, krismax has shown that.

Also, you don't replace valve springs until you replace the cams.

Last, this question is better for the "All Motor" gurus IMHO.

Nealoc187

iTrader: (23)

Another thing you should be aware of, installation of cams and valvesprings is like a 10-12 hour ordeal. So if you do it once for just the valvesprings, and then again when you get cams, you are going to spend like 20+ hours.

stephenlc

iTrader: (1)

Yeah all at once and spin that ***** too 8000 rpm or 9000 rpm. But I guess youll overspin it like that.

mighteatyou

Yeah well i wish i had the $$ too get the cams and valvesprings all at once with all this supercharger stuff.

so with new valvesprings i should be able to put the rev limiter up too about 8000 or 8500?? even if i had stock cams? just in case i didnt do them both at once.

VQ30DES

could you imagine the sound of a VQ at 8K.
also, is everthing else strong enough to go that high?

IceY2K1

iTrader: (3)

Ask krismax...he enjoys it daily.

Oil pump isn't for very long.

IceY2K1

iTrader: (3)

Again, you missed my and then Neals point.

You don't go through the hassle of installing valve springs and not cams. It's a *MAJOR* teardown and you're removing the cams to install springs anyways. So, why would you go through 10-12hrs. of labor to replace the springs, put stock cams back, and then down the road another 10-12hrs. to swap in new cams. It doesn't make sense man. You do them BOTH at once, ie wait until you can afford cams.

Why do you think you need 8000rpm?

pawnstar12

why wont the vq be a monster 8000 rpm.... boosted!

mighteatyou

i dont think you understand i just want the fastest supercharged maxima, i definatly have the money for it, and after i get the 14 Psi set up with the 2.87 pulley i have future plans of installing:

HKS Twin Power Ignition- $650
Stillen Oil Cooler- $330
JWT Cams- $1100
JWT Cam Springs- $350
Connecting Rods Preened and Polished-$300
Pistons-$800

mighteatyou

once thats done im sure ill add nitrous on top just to get it pushin in the 11's :P i mean thats the plan dunno i may crash it before the

IceY2K1

iTrader: (3)

With a 2.87" pulley after about 6500rpm you're past the efficiency point and at 7000rpm you're beyond the 53Krpm critical limit of the SC impeller, so 7400rpm is plain dangerous. Plus, the stock valve springs are capable to that rpm, so not needed.

If you want the fastest SC Maxima, then I'd suggest you follow in his footsteps, ie Mardigrasmax, with a 2.62" pulley and spend the valve spring/cam money on nitrous with a stock/somewhat raised rev-limiter. With a 2.62" pulley at 6400rpm, your impeller speed is already exceeding the 53K+rpm limit.

VQ30DES

If you have the money why dont you just scrap the s/c and through in a turbo?

SR20DEN

iTrader: (7)

Installing cams is already a 10-12 hopur job. But to change the valvesprings will add several more hours to that and may requre the removal of the heads unless you manage to locate a special valve spring compressor to fit down in the narrow spaces.

mighteatyou

turbo is not necessarily faster than a supercharger nitrous. I suppose we will only see where this setup will get me