Wez Posted December 2, 2006 Share Posted December 2, 2006 Hey All, After reading loads of threads on here going back to 2005 I have decided to go with HKS 264 inlet and exhaust. Looking at the attached HKS graphs on a T04 turbo these offer a good range of power with little low down loss and great gains up top. I already have HKS 272/264 cams which I have not installed, I need to get hold of a 264 inlet now. When installing these I have read thats its best to leave them at stock timing and not bother with cam gears, if this is true I have some JUN gears for sale. Link to comment Share on other sites More sharing options...
JohnA Posted December 2, 2006 Share Posted December 2, 2006 Well done. It takes a strong character to refrain from the lure of an excessively wild cam. Link to comment Share on other sites More sharing options...
Wez Posted December 2, 2006 Author Share Posted December 2, 2006 I like the low down punch my car has at the moment and really do not want to lose much of it. My goal is 600hp so only 90hp to go, hopefully cams and a hike in boost to 1.7ish should see me good. Link to comment Share on other sites More sharing options...
JohnA Posted December 2, 2006 Share Posted December 2, 2006 Wise choice. If you haven't got a 'free-for-all' exh A/R, it's best to be conservative in cam timing. Link to comment Share on other sites More sharing options...
Wez Posted December 2, 2006 Author Share Posted December 2, 2006 Shall I install the JUN cam gears or stay with stock. Link to comment Share on other sites More sharing options...
Alex Posted December 2, 2006 Share Posted December 2, 2006 If the Jun cam gears are lighter then fit them...if not then dont. Link to comment Share on other sites More sharing options...
Wez Posted December 2, 2006 Author Share Posted December 2, 2006 Stock ones are 0.96lbs per cam gear according to moreboost weights page. Link to comment Share on other sites More sharing options...
JohnA Posted December 2, 2006 Share Posted December 2, 2006 Shall I install the JUN cam gears or stay with stock. If you're not going to experiment with alternative angles, I see no reason to risk anything non-stock. I've seen aftermarket gears go loose or damage their teeth, but I've never heard of stock ones go wrong. Link to comment Share on other sites More sharing options...
uk-rich Posted December 2, 2006 Share Posted December 2, 2006 the jun ones use oem teeth rings if i remember right Link to comment Share on other sites More sharing options...
stupra Posted December 2, 2006 Share Posted December 2, 2006 This is the set up i've gone for after seeing the differance between two cars with the same turbo (t61), one with the 264/264, and one with 256/256. The 264/264 car seemed to have an advantage. I'll be staying with the stock cam gears, as they did. Link to comment Share on other sites More sharing options...
JohnA Posted December 2, 2006 Share Posted December 2, 2006 How many bolts provide the clamping force? You don't want them getting loose under pressure, oh no you don't (check if you get interference at the extreme setting, *just* in case) Link to comment Share on other sites More sharing options...
Wez Posted December 2, 2006 Author Share Posted December 2, 2006 JUN cam gears use 5 bolts and were at one point considered the best aftermarket cam gear for the 2JZ-GTE. I have no way of weighing them here which is a shame. Link to comment Share on other sites More sharing options...
JohnA Posted December 2, 2006 Share Posted December 2, 2006 5 is a decent number, I'd loctite them in the final position as well. Can't be too careful. Still, if you don't intend to run the exh cam at a different angle, why go non-stock? I don't get it. Just the Intake one if you are feeling experimental. Link to comment Share on other sites More sharing options...
Alex Posted December 2, 2006 Share Posted December 2, 2006 John the JUN cam gear is the best aftermarket cam gear you'll find. It uses the strong stock rim and has 5 proper bolts for clamping. It's a very good piece of kit, however I believe they are heavier (Ian C has them and said he felt the stockers were lighter). So if you don't intend to play with the timing, which I think you'd be best to avoid at least for now....then leave the stockers on. Link to comment Share on other sites More sharing options...
Ian C Posted December 2, 2006 Share Posted December 2, 2006 Seeing as they use the stock gear part and have a big slab of metal for the adjustment rather than five skeletal spokes I'd say they were heavier, easily. As to how much actual difference that makes to the engine power, I wouldn't have thought that much -Ian Link to comment Share on other sites More sharing options...
Chris Wilson Posted December 3, 2006 Share Posted December 3, 2006 You can usually lock up adjustable cam gears by drilling nd tapping an extra hole in them locking both halves together, say a 10/32 UNF size to get a fine thread. Weight isn't too critical, go for well made ones even if a bit heavier, they only turn at 1/2 crank RPM of course. Steel teeth wear MUCH better than alloy ones, even hard anodised alloy ones. If fitting aftermarket cams the ability to fettle adjustment is nice as the stock positions are sometimes not dead on what you want, and if you have skimmed the head or block will definitely be wrong. Link to comment Share on other sites More sharing options...
Wez Posted December 3, 2006 Author Share Posted December 3, 2006 Hey Chris, Hopefully you will be installing my cams, would you like to install them with the JUN cam gears or shall I sell them? Did you get my email? Link to comment Share on other sites More sharing options...
ajazyasin Posted December 3, 2006 Share Posted December 3, 2006 I never reallt thought about the adjustment of the cams. Ive got HKS 256in/265ex cams. Should i be looking at leaving my adj cam gears at 0 adjustment? I'll be running my Garret GT40-67. Link to comment Share on other sites More sharing options...
Alex Posted December 3, 2006 Share Posted December 3, 2006 Leave them alone IMO - Toyota's settings are spot on and HKS's design is aimed to use stock settings. Link to comment Share on other sites More sharing options...
Chris Wilson Posted December 3, 2006 Share Posted December 3, 2006 I never reallt thought about the adjustment of the cams. Ive got HKS 256in/265ex cams. Should i be looking at leaving my adj cam gears at 0 adjustment? I'll be running my Garret GT40-67. When replacing cams you should always check that the stock wheels acieve the correct timing as designated by the cam makers, this will / should be shown as a certain lift at a certain crankshaft rotational position. You will need a magentic stand dial gauge, a crank timing disc and some bits of steel and some odd bolts to make a secure platform to mount the mag stand securely adjacent to the cam buckets. Do a search on Google for setting up cam timing, pictures are worth a thousand words. To not check is to hope. Usually the stock wheels will be very clsoe to achieving the makers desired timing, but you won't KNOW unless you check it. Link to comment Share on other sites More sharing options...
Wez Posted December 3, 2006 Author Share Posted December 3, 2006 OK I will keep the cam gears then Link to comment Share on other sites More sharing options...
TLicense Posted December 3, 2006 Share Posted December 3, 2006 Use Nordlock washers under the bolt heads to do them up. They will never come undone. To undo them they need an increase in torque, which basically means they will NEVER vibrate loose. I've yet to see any other fixing method that achieves this. (Even nylock or K-nuts will vibrate loose when given enough encouragement!) http://www.nordlock.com/default.asp?url=7.16.37 Nordlock washers are about £10 for a box of 50. http://www.rs-components.co.uk/electronic-components-uk/283978922-mechanical-products-tools-nordlock-anti-vibration-washers.html Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now