Fox Posted June 21, 2005 Share Posted June 21, 2005 Hi peeps, I'm Looking to get a set of HKS 264 Camshafts, both Intake and Exhaust. From reading about this upgrade they give aprox 30 more rwhp with a trade-of off only 200rpm's of additional lag! Can anyone please give me some advice if this is a good upgrade or not. I use the car everyday and i don't want a lumpy idle.. Thanks for any advice Fox.. Link to comment Share on other sites More sharing options...
adi2009 Posted June 21, 2005 Share Posted June 21, 2005 I dont think it will help u a whole lot running with the stock twins. certainly not 30rwhp atleast. If you are running a single, then it will definately help. Link to comment Share on other sites More sharing options...
Fox Posted June 21, 2005 Author Share Posted June 21, 2005 Don't you just wish everything did what it says on the tin Link to comment Share on other sites More sharing options...
adi2009 Posted June 21, 2005 Share Posted June 21, 2005 Dont get me wrong. It probably will still help you, but just not as much as it would help a single'd car. Are you BPU??? Link to comment Share on other sites More sharing options...
Fox Posted June 21, 2005 Author Share Posted June 21, 2005 Currently standard bar an Apexi Airfilter ----------------- edited to say Veilside Teardrop CW Decat Pipes ----------------- However My car is awaiting the installation of the following RPS Street Max clutch RPS RPS Cyn-R-G Fly Wheel Fluidyne Aluminum Radiator GReddy 3 Row FMIC Walbro Fuel Pump after the above is installed i am going down the line of AEM standalone EMS Looking to complete the above with HKS 264 Camshafts, both Intake and Exhaust Cam Gear's GReddy Lightweight Pullies Link to comment Share on other sites More sharing options...
adi2009 Posted June 22, 2005 Share Posted June 22, 2005 You should increase boost to gain any noticeable power at all. 'BPU' (do a search). Get yourself a boost controller (manual or electronic) and get the Greddy BCC. The mods that you state you are going to do will give u only negligible or no power increase. Link to comment Share on other sites More sharing options...
Fox Posted June 22, 2005 Author Share Posted June 22, 2005 Even with the AEM standalone will i still need a boost controler? I could be wrong, but i was of the understanding that the AEM did everything!!!! Link to comment Share on other sites More sharing options...
jason m Posted June 22, 2005 Share Posted June 22, 2005 You are limited by the turbos running a safe maximum of 1.2 bar. However I have heard it said that the aem is capable of providing an extra 70bhp on stock turbos - this will prob be with race fuel though... Link to comment Share on other sites More sharing options...
carl0s Posted June 22, 2005 Share Posted June 22, 2005 Even with the AEM standalone will i still need a boost controler? I could be wrong, but i was of the understanding that the AEM did everything!!!! i'm UK spec and I don't seem to need a boost controller. I have a 3" DP going to an RS*R Ex-Mag GT2 and I consistently hit just over 15psi, with a peak of 17 - 17.5psi. no boost controller here.. Link to comment Share on other sites More sharing options...
Alex Posted June 22, 2005 Share Posted June 22, 2005 THe stock cams are staggered profiles 22xdeg intake and 23x exhaust I think (don't quote me on that) So stick with the stagger and get 256in and 264ex. The idle will be lumpier (usually). You'll deffo gain power at higher revs but just make sure you don't run out of fuel at max revs. Link to comment Share on other sites More sharing options...
Wez Posted June 22, 2005 Share Posted June 22, 2005 Yes the AEM can control the boost, it does this pretty well too. If you are on standard sequentials you can also dial in more boost on turbo one and then upto a safe maximum of about 1.2 on both turbos. You can also adjust the rpm points when the various VSV open, when running on mine I also noticed that the problems normally associated with the sequential system like 2nd turbo not always coming online where no longer an issue. There is also the option to setup a boost hi/lo switch so that you can run stock boost and then flick a switch and turn it all up. Plus you can do speed based boost to increase traction, so as the car speeds up your boost increases. I think most of the gains from the AEM will come from the ignition maps and being able to fine tune the fueling for your engine, while tuning these its possible to see nice gains in mid range power, top end power will be restricted by the standard turbos. Who are you going to use to map this? As for cams, yes the standard setup is staggered, not sure why, maybe it helps emmissions but most people go for the same in and out, normally 264/264, check out for what people are running in the US :- http://www.horsepowerfreaks.com/stats/Toyota/Supra_93-98 Link to comment Share on other sites More sharing options...
adi2009 Posted June 22, 2005 Share Posted June 22, 2005 In my opinion, go for the AEM if you are willing to spend the money (costs a lot to get it tuned right). However, even without the AEM (just using a boost controller) you can get the car running a solid 18 psi of boost. Link to comment Share on other sites More sharing options...
Ian C Posted June 22, 2005 Share Posted June 22, 2005 As for cams, yes the standard setup is staggered, not sure why, maybe it helps emmissions but most people go for the same in and out, normally 264/264, It's a workaround for the restrictive exhaust manifold/turbo housings. The exhaust valves open for longer to give the exhaust charge more time to sling it's hook. The cylinder head has a slightly compromised exhaust design because of the packaging as well. If you go hybrids, a staggered setup is a good idea. Single turbo removes the exhaust restriction but you still have the compormised head design, so staggered vs matched is less of an issue, probably not much in it. -Ian Link to comment Share on other sites More sharing options...
Wez Posted June 23, 2005 Share Posted June 23, 2005 Thanks for the info Ian, I always wondered why they were stagered. How about a small single or a cast manifold then? Link to comment Share on other sites More sharing options...
overspent Posted June 29, 2005 Share Posted June 29, 2005 I run 264in & ex with stage 3 hybrids, plus additional injectors, e-manage etc, idle is not significantly lumpy but does have an admired throb to it, do however find that off the mark when used in anger there is a bit of lag but when all comes on song she really flies the slight delay is an acceptable side affect of the conversion - just do it you know you want too Link to comment Share on other sites More sharing options...
JohnA Posted June 29, 2005 Share Posted June 29, 2005 Hi peeps, I'm Looking to get a set of HKS 264 Camshafts, both Intake and Exhaust. If your spec isn't already 'wild' you may want to reconsider. Everyman and his dog have 'opinions' on cam timing, but few understand what really goes on. You'd think that there can be open debate on such tech matters, but there are underlying egos and commercial interests. Send me a PM if you're interested, because I don't want to make any more enemies than I absolutely have to From reading about this upgrade they give aprox 30 more rwhp with a trade-of off only 200rpm's of additional lag! If only it were that simple mate... Link to comment Share on other sites More sharing options...
Alex Posted June 29, 2005 Share Posted June 29, 2005 256in / 264ex combo reduces restriction at high revs nicely and gives a throbbing/lumpy idle. Other than than no real downsides, it all gets going just as quick as stock. Don't waste your money on adjustable cam gears. Toyota got it right and put them in the right place. Link to comment Share on other sites More sharing options...
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