HKS 256, 264, 272 Cams

[BAP]

Several of the 1J users in the community are using HKS 272 Cams. It seems like a smaller number are using 264s or 256s.

For those of you who use HKS cams in a 1J, please provide comments on your experiences. Any dyno figures, turbo configurations, full boost RPM, any other comments you have.

If you do not have any personal experience with these cams please keep your comments on topic. There may be an article or web site that you know of that can help add to this discussion.

Thanks,

Bruce

 

[LordDigital]

Good luck in finding Dynos of before and after for hk$ cams on 1JZ. The only one test of cams for 1JZ that I know of was done by Zazzn ,as seen here.

 

[10secdream]

This may not be useful to you now but I have Jun 264 intake cam and a Jun 272 exhaust cam. I have not tested out my new setup yet as it is -25 Celsius outside and a winter wonderland. Come spring I can give you a full rundown.

 

[87M-GTE]

I was just looking at the JUN, HKS and CROWER websites and there was no 1JZ-GTE applications...?
I could only find the Brian Crower 1JZ cams, on the site they are listed as 1JZ-GE.

 

[Frankenstien]

^ I too would like info on where to get various cams. The speed shops in my area only seem to have 2JZ cams, and they're pushing $800 last I checked. Anyone know where to get actual 1JZ-GTE small core cams? Preferably a reputable shop.

 

[LordDigital]

I got my cams from Zazzn ,he was the one who did the initial R&D work for the community to get these cams from Crower ,thus IMO he deserves to get the sales. His price was actually lower than what Crower wanted ,the cams were drop shipped from Crower with part number 61402A-2. These are listed on their site as 2JZ cams ,but according to this pdf:


http://www.crower.com/pdf/2008b/131-134.pdf

Note: 1JZ Cams available, call Crower.

So I guess either call crower or PM Zazzn...

 

[Andre]

Any more info about this

How to contact Zazzn ?

Sp power wrote an article about cams for de 2JZ head on sf

There are a few combos available butt i do not know iff the article is the same for de 1JZ head

Whats are the best setup (cams) for the 1JZ head 264 are 272

Are maybe 264 intake and 272 exhaust?
Zazzn Chime in :icon_bigg

 

[soapra]

Best cams?

The bigger the better! If your tuner knows what he is doing, he can make power with them in any part of the power range. On the last 2jz that we built, with a set of custom cams (272) that we made, car made power in the low end and 2000 RPM sooner then stock 2jzgte cams. This same engine also broke the stock twins’ record on a stock head with stock valves and stock ports, just the cams that we had made and upgraded valve springs.

Most dyno numbers of any aftermarket camshaft make power in the higher RPM range, a lot of that has to do with how the tuner sets the cams up. My tuner can make 272's idle like stock or make it idle like a wild V8, all of this has an impact on power, but a if cams are setup the right way, it can increase response and help spool the turbo sooner.

 

[pnutcar]

In as well. I want the biggest cams I can get w/o having to build the head right now... I just suit my driving style to compliment the high revs, so its all good w/ me...

 

[LordDigital]

In as well. I want the biggest cams I can get w/o having to build the head right now... I just suit my driving style to compliment the high revs, so its all good w/ me...

I don't know about hk$ ,but for the Crower large core cams on 1JZ redLine ,you need to have shimless bucket.

 

[soapra]

It's recommended to use shim under bucket with any kind of cam over 272, but the first thing to upgrade would be the springs and retainers. Valves also play a vital role, as the stock ones wont take the abuse of a high redline that long.

Max redline on a head with 272 HKS cams with stock shims and stock valves and springs would be 8000 rpm max. Shim clearance is Vital and so is cam degree. If both of these two are off, you are leaving power on the table and can spit a shim out.

Dual Valve springs with retainers and shim under bucket can redline at 10,000. 1JZ's benefit greatly from this added redline. Add a good flow benched cylinder head that has been ported to benefit at the optimal lift of the cam and you get a cylinder head that will scream! Worst thing you can do is port a head with out knowing the cam you are going to use. Bigger isn't always better when it comes to porting. Best thing to do is; have the cams and head at the machine shop, before the port is touched.

 

[Gritz]

It's recommended to use shim under bucket with any kind of cam over 272, but the first thing to upgrade would be the springs and retainers. Valves also play a vital role, as the stock ones wont take the abuse of a high redline that long.

Max redline on a head with 272 HKS cams with stock shims and stock valves and springs would be 8000 rpm max. Shim clearance is Vital and so is cam degree. If both of these two are off, you are leaving power on the table and can spit a shim out.

Dual Valve springs with retainers and shim under bucket can redline at 10,000. 1JZ's benefit greatly from this added redline. Add a good flow benched cylinder head that has been ported to benefit at the optimal lift of the cam and you get a cylinder head that will scream! Worst thing you can do is port a head with out knowing the cam you are going to use. Bigger isn't always better when it comes to porting. Best thing to do is; have the cams and head at the machine shop, before the port is touched.

So if you wanted to improve low end response(from the stock cam) and have power to redline (7,000 rpm) what cam would you choose?

 

[soapra]

I would use HKS 264

 

[Zazzn]

Hey guys,

The 1jz 264's that BC is making are the crower 272 small core cams. They mimic the HKS 264's but with more lift to give more power. The Bc 272 will be a little smaller then the original 272 large core cams form Crower because the large core broke 2 engines mine and one other tester because we spit out the shims with .404 lift.. yeah that's a good lift

Anyways, I can still get the cams, and I'm actually doing another group buy in the GB section. Crower doesn't actually really sell the cams because they where custom ground for me and they don't even know what they are for... The guys are crower left to form Brian Crower... It's Brian that I did a shit load of work with... I tested about 6 sets of cams, spent all the money MY SELF to dyno and buy the initial sets. I wanted cams so bad because I could see what they did to the 2jz but was STUNNED when I gained 140 WHP over stock at 7800 RPM on my setup!!

Anyways, the single MOST important upgrade to a 1jz IMO is cams.

BTW thanks for the kind words lorddigital

I now run a 2jz with 264 BC cams and made 647 whp at 24PSI on a 67DDB... I've seen guys with 28 psi only make like 600!

 

[87M-GTE]

Those are some impressive numbers!
I got your pm by the way.

Do you have any dyno info for the 1jz with those cams?
Would these cams require a valve spring / retainer upgrade?

Thanks
Sam

 

[86_sports_1jz]

i'm also wondering the samething

 

[Tire Shredder]

On a 2J, but should give you an idea.

http://www.supraforums.com/forum/showthread.php?t=404377&highlight=264+dyno