which cam combo??

[306dsm2.0]

I was wondering what cam combo you guys think i should get I was told by a couple speedshops around the area to get 264/272 combo, but after searching around online it seems that the 264/264 combo would be better for my setup. My mods are posted below:

Intake, Joe P. MBC @ 20psi, Dave Brode UIP w/2.5-inch tb elbow, dejon tool lower, Supra smic, modded 1G bov , extreme motorsports short shifter, balance shaft eliminator kit, 1gen throttlebody and intake, 3" apexi N-1 cat-back, apexi GT downpipe, ported Evo 3 manifold, ported EVO 3 02 housing,Ported EVO 3 big 16g, safc-II, 190lph fuel pump with rewire kit, 680cc injectors, act 2600, pocketlogger, tre spool

thanks
jeremie

 

[Airpoppoff]

id defintely go with the 264/264 combo on yours, unless you plan on uprgrading in the future to bigger, you might want to step up to the 72's

 

[Groomz]

Before I would think about high profile cams I would look at the factory hydraulic lash adjusters. Can they handle high RPMs and high profile cams? I think it would be a waste of your money if you upgraded cams and not the HLAs first, or those new cams would get nixed by the stock adjusters, losing lift and during at high RPMs.

http://www.crco.com/sla_theory.html

Check it out.

And then get 272/272 combo and a Magnus intake manifold. And then send me money for my advice.

 

[306dsm2.0]

well i really wasn't planning on making my car high revving 7500-8000 would be the most it would see after i get my dsmlink and in the future i plan on upgrading to a green after i hit a low 12 or high 11 with my current setup. would the 264's be good enough to hit this goal or should i step it up to the 264/272

 

[leet]

Groomz you are REALLY stuck on the solid lifter idea...

Stick with what works, go crower springs and retainers.

 

[Spartan302]

264's. But while you're at it, it would be a good idea to replace the springs and retainers.

 

[Violater101]

You say your not going to go any bigger now, but just wait I would go with the 264/272 setup. Check out www.automotosports.com They did a real nice writeup on a 16g with various cam combinations and companies.

 

[Defiant]

Originally posted by Groomz
Before I would think about high profile cams I would look at the factory hydraulic lash adjusters. Can they handle high RPMs and high profile cams?

Yes, with aplomb and ease.

I think it would be a waste of your money if you upgraded cams and not the HLAs first, or those new cams would get nixed by the stock adjusters, losing lift and during at high RPMs.

Which you'll never see.

http://www.crco.com/sla_theory.html

Check it out.

I did. I don't buy it. The hydraulic system in the DSMs is just fine. Hydraulic lifters have an iffy reputation in the racing world from the experiences of V-8 racers running pushrod valvetrains at speeds much greater than they were designed for. That pushrod adds whip and harmonics not present in an OHC assembly, and contribute an inclination of the lifters to pump up. I disagree with their postulation that the first intention of the hydraulic lifters is to provide lubrication, and the second is to adjust cam to rocker clearance- they have that exactly backward, if in order of any kind. Lubrication in OHC motors is often supplied by a drilled cam which serves as an oil gallery (Datsun L-series), or the direct-acting lifters run in wells that keep oil in the area (Alfa-Romeo, Jaguar) of the valvetrain.
The _first_ intent of hydraulic lifters is to keep the cam followers in contact with the cam lobes, most especially on the back (closing) side of the lobe. That Mits has chosen to make the assembly pass its extra oil directly toward the roller follower is merely a bonus; they could have done the same thing with a drilled cam, but not quite so elegantly.
The stock Mits lifters should be happy at any rev you would reasonably want to run the engine in weekend races and on the street. The weight reduction of aftermarket springs and keepers will help more than solid lifters would. If you're only taking it to 8000 rpm, even that step is a bit of overkill.

 

[Groomz]

Originally posted by leet
Groomz you are REALLY stuck on the solid lifter idea...

Stick with what works, go crower springs and retainers.

The wiseman has shown me the way.

Sometimes I get excited about a product, but obviously defiant knows his stuff, so I'll go with him.

This is another reason you don't see wiseman listed next to my name. Listen to them!!!! ( They know more than me )

 

[306dsm2.0]

thanks for all the info guys i think that im goin to go with the 264/272 combo because i know im going to get a bigger turbo wthin the next year

 

[eclipsegsx9797]

i would say the 272/272 combo its such a nice idel sound when your next too a old camaro or mustang and there looking at you.