which one is the best size for bolt engine

264-10.8mm(IN/EX)

272-10.8mm(IN/EX)

272-11.3mm(IN)

272/11.0mm(EX)


my car a little modified Amuse Exhaust + HKS twin power.

which size camshaft is good for my car. If i use 272-10.8mm is good or not. i

should change spring vale,vale retainer, spocket cam, head gasket or not?

and also ECU must be tune. but now HKS F-CON V PRO not release Harness for VQ35HR yet. in case if i use the stock ECU can be it or not?


Thanksssssssssssss

 

If you have a protuner in your area go with the Uprev engine management software. You keep your stock ecu. Check them out

 

What are the stock cam specs?

For a mild build the 264 might be fine, but if you plan on doing a lot of breathing work and really building a strong all-motor car, I'd go with the higher lift 272's, but they will be a bit much until you get more work done.

 

What if I plan on going forced induction 500 whp ?

 

If you plan on going boosted, you don't want a lot of overlap, especially with the boost delivery of a twin turbo setup.

 

What does that mean I know nothing when it comes to cams I just know how to drive the car really well and get really good times lol. I mean if I could get 500 whp na i would be fine with that as well. lol

 

500 whp na on a Z? You would do well to do some reading before you waste your money kennedy.

 

I was being sarcastic... I obviously know just cams aren't going to make 500 whp.... Also maybe you should do some reading on grammar and sentence structure, I don't understand cam sizes and what they do is what I was stating.

 

500 whp OMG Go for turbo


I'm just want 300++ for NA is ok for me

 

I wouldn't spend the money on cams for an NA setup. The heads flow an incredibly large amount on the stock cams, you can get a pretty decent amount of power out of other breathing mods + tuning, and "improve" the car in other areas.

Ultimately a twin turbo setup is going to be more cost effective at increasing power, and cams still aren't *really* necessary and only worthwhile if you've done everything else. The cam timing isn't exactly easy to set on these motors, and the tuning won't be "cheap" for something as rare as cams (right now) so you're going to have relatively rough idle, and potentially cold start issues (speaking from experience).

 

Cams are a good idea on a N/A or a Turbo car. If anyone says otherwise, well, they have no idea what they are talking about.

 

Fixed your grammar for you **** stain.

Edit: Also my original intent was not malice, I was honestly trying to keep you from wasting money and ending up pissed because you didn't get the results you wanted. Lol @ the grammar attack

 

55555555555555555555

i'm thai not good in english


you want to speak thai? 5555 kidding

 

I'm plan to use 264 lift 10.8

How about the ECU F con V pro HKS 3.3 can use or not VQ35HR

 

you might want to first find out if Tomei actually has a camshaft to sell you.....to my knowledge (could be wrong, it's been a couple weeks since I checked) they had none available to actually sell yet. The ones for the VQ35DE will not work

saying cams aren't worth it for an NA setup is like saying a turbo or supercharger isn't worth it if you want boost. Proper cam selection is essential, no ifs, ands, or buts about it, to a proper, complete NA setup

 

I should clarify, obviously cams are crucial to making power NA, but the factory head/cam setup in the HR is incredibly efficient. The engine makes strong power without the cost or complication of installing cams. It would be the last thing I'd put in as far as NA modding is concerned, rather than one of the first.

 

I agree, and disagree

The factory head/cam setup of all VQ's is efficient - but there is significant power left there, waiting to be exploited. Stock HR cams are nothing to write home about, and with the ability to map VTC on both in/ex sides, it's an engine begging for a proper setup

Given the efficiency of the stock engine, and the improved strength of the bottom end, cams, proper programmable engine management, head work and a header back system would be the first things I did if I had my own HR. That is where the $$ will show the most significant improvements

 

So what do you imagine a fully built, like yours, HR Z would put out?

 

time to get an HR.

 

a built HR is not going to really perform significantly differently from a build DE - the difference is the HR is the stronger platform to start with (albeit, far more limited range of parts available)

also to the OP, I would skip the F Con and look for something that lets you manipulate cam timing if you are going to go for 272's +