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HKS adjustable Exhaust Gear

Col-GTSX

By Col-GTSX,
in Engines & Forced Induction

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Col-GTSX Grand Master

Col-GTSX

Posted
Posted

I have searched high and low...

I have ordered the above part for my S2 R33. I how how to install as that is quite easy. But what do i do to set it up???? I mean what sort of setting should i run it on??? How much extra lift should i go for???

Anyone who has got one, how did you go tuning your car?? Any sugestions or any mistakes i may need to know about???

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Sydneykid Grand Master

Sydneykid

Posted
Posted
I have searched high and low...

I have ordered the above part for my S2 R33. I how how to install as that is quite easy. But what do i do to set it up???? I mean what sort of setting should i run it on??? How much extra lift should i go for???

Anyone who has got one, how did you go tuning your car?? Any sugestions or any mistakes i may need to know about???

My experience has been that a good place to start is 4 degrees retarded, that's crankshaft degrees not camshaft degrees:cheers:

Col-GTSX Grand Master

Col-GTSX

Posted
  • Author
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I have never installed one of these before. I have no doubt and not worrying about the installation its just the tuning. I have never played with an adjustable cam gear before. I understand all the terminoligy (im just a simple auto elec) but yeah are their instructions on setting and how do i measure 4 degres on a cam gear???

Very newbie questions from me tonight, but this motor cant be replaced like my last few. So i want to gather all the info before playing with it....

Thanks Sky Kid.

Sydneykid Grand Master

Sydneykid

Posted
Posted
Sydney Kid i mean.... Dam it

I just want to be a newbie on this topic as i dont want pistons to introduce themselves to my valves.... LOL

Treat this topic as tho im a noob. Walk me threw it please... Thanks

Sorry, but you confused me with the first post........

I how how to install as that is quite easy.

I thought that meant you knew what you were doing and just needed a suggestion on where to set the exhaust camshaft timing as a starting position. Before you got it properly tuned, that is.

Sorry, but it has been a long weekend racing, I will try and get around to bashing out the basic instructions tomorrow. It would appear that you haven't looked at what brand of pulley you want to buy

how do i measure 4 degres on a cam gear
I haven't seen one for a number of years that hasn't got the degrees stamped on it. So choosing your brand would be a good place to start. I use the Jun pulleys myself, but the choice is quite large.

In the interim, I suggest you do a thorough search as there are hundreds of posts on this subject.

:D

Col-GTSX Grand Master

Col-GTSX

Posted
  • Author
Posted

I have purchased a HKS cam gear, hence the title....

Im just waiting for it to come. (about a week)

Will fit next week end hopefully....

Like i said i would apriciate a noob's version of setting up. Im not afraid to say i dont know what im doing when it comes to these units. I wanted one as i understand what they do, how they work. Just dont know how to setup....

Yes you can get a great result from any motor with a hair dryer bolted on the side....

It allows for a longer duration of the exhaust cam, RB25's have VVT so it is pointless putting one on the inlet side. But the exhaust could use a helping hand....

Thanks again Sydney Kid....

Sydneykid Grand Master

Sydneykid

Posted
Posted

I have NEVER seen less than a 15 rwkw increase in average power from fitting an adjustable exhaust camshaft pulley to an RB25DET.:D

PS; although not with the RB25DET (Neo 260 and non Neo 256) Tomei Poncams, they seem to be perfectly timed out of the box.

Col-GTSX Grand Master

Col-GTSX

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Yeah. I knew it would not give me 300kw's.... LOL

I just want everthing.... This car is to remain as stock looking as possible....

I had a spare $250 IN AUTOBARN VOUCHERS... So i thought it would be a good idea...

benm Grand Master

benm

Posted
Posted

Do yourself a favour and take it to a reputable mechanic with a dyno and get it done properly. It only cost me about $100 to have it fitted/tuned from memory and that way they can find out the best result and you get to see the increase in performance on a nice printed dyno chart. For a total of ~$250 I think it's some of the best value for money you can get in your modding.

Here are my results:

cam-ba-small.jpg

Bass Junky Grand Master

Bass Junky

Posted
Posted

Check out my thread about the cam gear I put in my RB25DET Neo6.

Not a single kilowatt differnce. Not one. Curve didn't change, power spread didn't change, nothing.

Don't do it if you have an R34 GTT.

BASS OUT

Col-GTSX Grand Master

Col-GTSX

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  • Author
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Nice results....

I have a power curve thats a bit down at 120kph and then pulls back up again...

This is what i was trying to achieve.

I hope my power curve is as sussesful as yours.

Before anothone else says it. Im not in it for more power im trying to flatten out my power curve. I mean make it more consistant, even accross the board. Not up and down threw the revs...

Cheers

Col-GTSX Grand Master

Col-GTSX

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  • Author
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Yeah.... i just check out nengun and didnt see them in the cat...

At that price tho id be better off just picking up a set from work and wait a week. I was just thinking of maby getting some tommorrow. Ill just order them from work i guess (issue solved)

rev210 Grand Master

rev210

Posted
Posted
Check out my thread about the cam gear I put in my RB25DET Neo6.

Not a single kilowatt differnce.  Not one.  Curve didn't change, power spread didn't change, nothing.

Don't do it if you have an R34 GTT.

BASS OUT

Change the base timing to suit?

You can't just slap them in and expect them to work well. I've heard of a few people who have had the same experience (r33's as well) and none of them changed anything else. On the other hand if you are ready to alter other parrameters then you'll see why they are good. If 4 degrees doesn't work then try 6, you can go as far as 8 - 10 either way pretty easy.

Col-GTSX Grand Master

Col-GTSX

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  • Author
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Got it today...

Looks awsome... I got the new style one. Silver and purple (not blue and purple) Looks very easy to adjust. Ill have to buy one for the inlet side just for the bling factor (not really)LOL.

Ill fit it and run a tech thread on it.... As per usual...

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