I have HKS 264/264 and I love them. I don't know what power I made before the cams but afterwards I made 297whp & 310wtq at CBRD with Chad tuning the car. Keep in mind he has one of the lowest reading Dyno's on this forum. Stock VIII's make 190-200 whp on his dyno.
I have the exact same mods as you minus the LICP. If you want great mid-range power and torque with near stock idle, get the 264's. I love the way my car pulls now...

 

i have 264 i got them cause of my daily drive spools fast and still has a decent top end

 

who said hks 272 cams are lopey? back then it is lopey, but now with the ecuflash and experience of the tuners, they are just very mild cams. I had my HKS 272 installed recently and they idle almost like stock. it all depends on how good your tuner is to smooth out the idle.
Just don't waste your money on HKS 264, or 264/272 combo.

On average cam will give you 20-30 hp gain, depending on cams and your supporting mods.

 

HKS 272's or GSC S1's FTW

I have 264's and wish I would have went bigger now that I have the fp green.

 

264s are a waste of time and $$$ imo. HKS 272's are great for the stock turbo and even up to a 35r. Your tuner shoudl be able to adjust for the idle.

 

go bigger then a 264, you will be disappointed in the end

 

I love my 272/264 split.....never thought they were lopey compared to stock even. It really all depends on the tune.

 

As for you throwing a CEL it's not going to happen. I'm running 272's on stock turbo with reflash and my idle lopes a little bit for about 1 sec. And as for power I made 355whp on c16. A buddy of mine who lives in Philli did his own flash on the same dyno I sent to the only difference with his setup compaired to mine he has GSC S1's and a Perrin FMIC and turboback exhaust. I have HKS 272's and stock FMIC, turbo back exhaust, LICP. I think with just the difference with cams and FMIC he made 390 on c16

 

Thanks for the GSC cam suggestions everyone.
The S1s will provide very nice spoolup and midrange. Top end is improved, not as much as the S2, but you loose some spool/midrange power on S2s.
It sounds like you want some nice power, but with a smooth idle and long power band. I would definitely suggest the S1.
You can turn the boost up alittle bit more, to around 24-25, and make some very nice power!
With Mivec, you can adjust it to idle like stock, or lope like it has 300s in there.

Thanks,
Travis

 

Just FYI...I am running HKS 272s with DTM head and I put down 325whp at 23psi/ 93 octane on DTM dyno when it was 76 degree in the shop.

 

do a little research on the forums. Someone compared the ones you are talking about and the GSC S1's were superior in gains. I gained 50whp with mine

 

264i/272e HKS Cams on my set-up.

Good for a solid 405 whp still at 7,800 rpms on the little 20GLT.

 

I am running 260/272 combo also. good street set up.
380 dllHP with stock evo 8 turbo.
However, I want to try 280s .

 

what numbers did u make with this setup?

 

suggest to go with gsc s1, greg say what to do to make our baby go!


Gsc s1 has newer design and make more power and nicer powerband!