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Hks Or Jun Cam Gears? (scratch That I Ordered Tomei's)

Topaz

By Topaz,
in Western Australia

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KeeFy Mentor

KeeFy

Posted
Posted
Just buy them anyway & use the extra few hp to your advantage.

Mind you at 63 seconds for the short track, can I suggest some tyre & suspension work first?

Agreed! Suspension setup before power for the track. + driver mods too.

Topaz Grand Master

Topaz

Posted
  • Author
Posted

What do mean 'just buy them'? Can I use them with the Poncams later?

Damn you lot, I havent the money for this handling stuff :P

I will get Sydneykids Bilstein kit and Nismo front and rear swaybars and strut braces when I have the money. And if I scrap my idea of getting the Do Luck kit, I could get all that handling stuff very soon.

32R Apprentice

32R

Posted
Posted
No they don't. But the lobe centres on the cam are different to the Nissan ones.

To change the timing belt you have to take the water pump out. Given how cheap they are it is one of those may as well do it jobs.

You dont have to take out the pump to change the timing belt,although its easier when everythings off..

Topaz have you ever changed a timing belt?

If you haven't got the proper tools I'd just let Ken do it for you :P

Topaz Grand Master

Topaz

Posted
  • Author
Posted
Topaz have you ever changed a timing belt?

If you haven't got the proper tools I'd just let Ken do it for you :P

My dad has done it many times before (he's also a Fitter/Turner by trade) and he thinks we don't need a timing light :P

Everyone else thinks for RB engines to use a timing light!

In Tune Performance Rookie

In Tune Performance

Posted
Posted

Ok guys here is the deal HKS cam gears only have a 3 bolt locking system for the adjustment and they tend to wear out on the tooth section from the cam belt alot faster than any other cam gears on the market.

As a rule i use Tomie cam gears because they have a 4 bolt system and sometimes a 5 bolt system for locking they adjustment up on some vehicles. This is extreemly important at high revs as we all no what happens if your cams move at 8000rpm's...... big damage to your engine. Tomie also have the better of the durilium manufacturing and in my experience seem to last alot longer than its competitors...

At the end of the day its personal choice but i hope that some of this helps in your decisison.

Take care and good luck.

phunky_monkey Grand Master

phunky_monkey

Posted
Posted
yeah thats some good info, but my question can u make more power by just changing cams? or are they only good when coupled with other mods?

Yes, should give you a decent power gain even with a relatively stock car. I know poncams, HKS step 1 etcs are usually designed so that they can be run with a stock computer and give a decent gain.

ix9 Grand Master

ix9

Posted
Posted
My dad has done it many times before (he's also a Fitter/Turner by trade) and he thinks we don't need a timing light :P

Everyone else thinks for RB engines to use a timing light!

I did my own timing belt, and for the price of a new engine over a timing light guess which one I'd choose.

P.S. Do please do your water pump at the same time, for 140bux or whatever they are it's well worth it. My Water pump died, so I did my timing belt (again) for the extra money.

rev210 Grand Master

rev210

Posted
Posted
Yes, should give you a decent power gain even with a relatively stock car. I know poncams, HKS step 1 etcs are usually designed so that they can be run with a stock computer and give a decent gain.

designed to run on stock ecu map ------> no

gain power on stock ecu? -------> no

will plugs foul very quickly using standard ecu and these cams ------> yes

will fuel ecconomy be crap using standard ecu -------> yes

Should I get a power FC first ---------> yes

Also on the HKS cam gear wearing out myth. How many worn out HKS cam gears has anyone seen, can we count 30? if not its not even statistically valid. I say nothing wrong with them in fact they are alot easier to adjust than the tomie ones too, I've had both I'd personally buy the HKS ones or something similar next time round (2c)

rev210 Grand Master

rev210

Posted
Posted
If you are thinking about new cams at any stage you can give the adustable pulleys a miss as the Poncams (To use but one example) have different centres to the stock items & you don't get such a gain from playing around with them.

Sorry disagree about the poncams not benifiting 'greatly' from being able to alter the cam timing with adjustable gears.Along with many others I have experienced the benifit of doing so on both stock and group A turbos on the RB26.

In partnership with adjustments to the timing and fuel maps changes can be made to the power curve and boost response.

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