hks 280/280 stock block

[2doorevo]

hey first would like to thank everybody at dsmtuners for a having such an informative car site happy holidays everyone!!!

well i went in a christmas shopping rampage and after buying everyones gifts i decided to treat my self to hks 280/280 camshafts for the ol dsm. my engine is rebuilt 7 bolt oem with lite mods stock turbo no tuning devices at all but i plan on ecm v3 shortly as well a larger turbo later, any how i was wondering if its ok to:
1 use brian crower titanium valve springs and retainers with the hks set up. or do i have to stick with the hks spring upgrade kit?
2also when i do this is it easy to install arp headstuds,light valve stems ect while im at it ? i plan on about 450hp street track setup. i researched but i know most do 264/272 and other popular name brand camshafts i know they vary in specs and requirements.
3will i have to modify the cam angle sensor for these cams?

 

[1993eclipseGS]

-You will not need to modify the cam angle sensor on your car.

-You can use any type of aftermarket valvesprings/retainers you would like as long as they are for your engine. You do not hafto specifically use the HKS valvetrain just because you got the HKS cams.

If you plan on removing the head, You might aswell do ARP headstuds and a cometic mls headgasket. Very easy while it's all apart, And you can get a package deal on extremepsi.com for a very great price.

 

[95blackGsTurbo]

My recommendation for this is that the HKS 272/272 combo is know for making 700+ hp. Unless you are wanting crazy top end I would stick with the 272's. For 450hp it is going to hurt you more with the lag then it is going to help the top end. With these cams you are going to be spinning the motor pretty high to get the full advantage of them so I would recommend a dual or beehive valve spring that can take the repeated high rpm abuse. These cams are not intended for 7000 rpm shifts. You can do the ARP Headstuds whenever you want to. But if you are going to be removing the head it is always a good idea to have it checkout out for leaks or straightness. No need to modify CAS on the 95-96 model. Do not try to drop these in either without proper tuning devices. You are will no like it.

 

[daren_p]

My recommendation for this is that the HKS 272/272 combo is know for making 700+ hp. Unless you are wanting crazy top end I would stick with the 272's. For 450hp it is going to hurt you more with the lag then it is going to help the top end. With these cams you are going to be spinning the motor pretty high to get the full advantage of them so I would recommend a dual or beehive valve spring that can take the repeated high rpm abuse. These cams are not intended for 7000 rpm shifts. You can do the ARP Headstuds whenever you want to. But if you are going to be removing the head it is always a good idea to have it checkout out for leaks or straightness. No need to modify CAS on the 95-96 model. Do not try to drop these in either without proper tuning devices. You are will no like it.

I'll second Adam, if your goals are 450hp, you bought the wrong cams. These are overkill & like he mentioned will hurt your performance with that kind of power goal. A 272 combo would be a much better match, this will allow a broader powerband & for you to shift where you should be shifting a ~450hp setup.

 

[2doorevo]

well well now im glad i waited for professional advice from you all before installing this cam set and thanks for replying Happy and safe Holidays bro's. Ok 172/172 is the better set for my goals i will return the 282/282 hope people learn from this thread i did. More questions:
1.will the HKS 172/172 and Brian Crower titanium springs work ok with a stock turbo and no tune for now will i get a faster car right off the bat aka plugnplay?
2.would the titanium springs be too much high rev or do you recommend standard spring upgrade or stock springs for 172's?
3.is it possible installing the 172's and valve springs without removing the engine or head out. also can aftermarket valve stems be installed without removing the head or porting.
4. my mechanic is confident about the camshaft install what is the average price for this kind of work and is ok to use standard mechanics for the job including springs and maybe valvestems? thanks, bye

 

[dsm-onster]

Really, for your goal you do not need to rev beyond a stock revlimit. And fresh stock springs are just fine with hks 272s with a stock revlimit and even over a little ways. So any upgrade spring syou have will be overkill but just fine.

You need to remove the head to pull out the springs and/or valvestems.

You will see a gain in power. Bu tnothing very eye opening because your turbo will fall on its face trying to keep up with the flow of the motor. It has a hard enough time with the long block in pure stock form.

 

[Spoolin18]

Really, for your goal you do not need to rev beyond a stock revlimit. And fresh stock springs are just fine with hks 272s with a stock revlimit and even over a little ways. So any upgrade spring syou have will be overkill but just fine.

You need to remove the head to pull out the springs and/or valvestems.

You will see a gain in power. Bu tnothing very eye opening because your turbo will fall on its face trying to keep up with the flow of the motor. It has a hard enough time with the long block in pure stock form.

Do you have to upgrade any springs, or valvetrain componet when using 264/264's?

 

[TSIfreek]

I would go with 272s as well 280s are all out drag cams desighned to be used on track only cars with huge turbos on them. 272s are the best bet for a street strip car

 

[1gDSM4g63]

No, if you are going to the 264/264 combo a valve spring is not need.

I would go with 272s as well 280s are all out drag cams desighned to be used on track only cars with huge turbos on them. 272s are the best bet for a street strip car

Totally true, it all come down to what turbo you're running to determine which combo to go with. You'll see little or no gain on a stock turbo or any other smaller with a 280/280 combo that aren't designed to work in the topend area.

 

[Spoolin18]

No, if you are going to the 264/264 combo a valve spring is not need.



Totally true, it all come down to what turbo you're running to determine which combo to go with. You'll see little or no gain on a stock turbo or any other smaller with a 280/280 combo that aren't designed to work in the topend area.

evo316g or small 16g @ 16-20 LBS.

 

[1gDSM4g63]

evo316g or small 16g @ 16-20 LBS.

280/280 aren't good for either of those turbos if that's what you're asking.

 

[Spoolin18]

280/280 aren't good for either of those turbos if that's what you're asking.

No, I don't want 280's or 272s. My Talon is my DD which I want to be fast, reliable and streetable. Nothing crazy. THATS what I'm saying. I think 264/264 would go good with a 16g, no?

 

[95blackGsTurbo]

HSK 272 cams are very streetable. Because of their ramp rate they don't lope and cause the car to run horribly like a BC cam does. 264's would give you minimal gain over stock cams since I believe stock one's are 256's. I would recommend the 264/272 combo or 272/272. As long as you stick with a good brand, HKS, Kelford, GSC who have put their time and research into making the best street/strip cam possible you won't have any daily driving problems. You can even run stock springs on the HKS 272 cams as long as you aren't planning on turning it past redline due to the ramp rate of the cam not being as aggressive as other on the market. Although it is recommended you change them.

 

[Spoolin18]

HSK 272 cams are very streetable. Because of their ramp rate they don't lope and cause the car to run horribly like a BC cam does. 264's would give you minimal gain over stock cams since I believe stock one's are 256's. I would recommend the 264/272 combo or 272/272. As long as you stick with a good brand, HKS, Kelford, GSC who have put their time and research into making the best street/strip cam possible you won't have any daily driving problems. You can even run stock springs on the HKS 272 cams as long as you aren't planning on turning it past redline due to the ramp rate of the cam not being as aggressive as other on the market. Although it is recommended you change them.

I'll stick with stock cams for now and look for power gains somewhere else.

 

[95blackGsTurbo]

On an EVO316G cams are going to be your biggest power adder.

 

[2doorevo]

i appreciate the help everyone thanks and i like what i hear will the car shut off or run weird with no tune ? or should i wait for engine management ecm

 

[TSIfreek]

i appreciate the help everyone thanks and i like what i hear will the car shut off or run weird with no tune ? or should i wait for engine management ecm

With what cams?? 272s no. 280s are just going to lag like a bi*** on the street and will always run like crap.
Guys over complicate there set ups and end up disapointed with a motor that runs like crap. Stick to basic known power makers that are street friendly and you will be driving your car alot more often and have money in your bank account. Our motors have been around for 20 years and every part out there has been tested over and over again.

 

[pboglio]

HKS 264/264 cams were worth about +25 h.p. on my 2g. They are as close to a stock cam in terms of idle quality as you can get. I personally would go bigger though.

 

[Boomdeeze]

Another good set of cams i have heard of are the fp2 cams or even the fp2x cams. Has anyone found any hp gain from these? I read in another forum that these cams are pretty comparable to the HKS 272's.

 

[fergulus]

Would his setup not warrant just the 264/272 combo? I thought that 272s were good to about 8-9k RPM, wouldnt that be unsafe to push a stock block to? I thought 272 cams were for 400-600HP motors.