I would not recommend this. The fuel pump is very cheap. It may not add hp, but it sure helps the safety of the car.

 

I am another proud owner of the 264in 272ex HKS cams. It was the best of both worlds for myself. Right now I am running with my cam gears at -2,-2 and it provides mad power all around from low to high rpms. You can run the stock valvetrain but you can't rev it to 8k though but honestly you can't do that anyways so if you are going to raise your rev limit then you have to upgrade it and the conrod bolts for support. Both cams the 264 and 272 provide the same lift so just different duration. The combo sounds mean and performs well.

 

Whats all this talk of Piper cams??? I was set on HKS and some UK guys are really pushing Piper. I may regret one way or the other but I just want to make a well informed decision. Any comments?

 

Honestly all the vendors make a great product (Jun,HKS,Piper,Tomei, Web, Crower and others) but I think that the UK guys are sold on these because they are used alot in the rally cars so they are proven time and time again for the application. I haven't seen any dyno charts on compairsons so it would be hard to make a judgement. HKS , JUN and Tomie are proven here in the US more so I believe this is the only real reason that they are more popular. Just my 02.

 

I am torn b/c the Piper's are a little more agressive on the lift with the same duration so you can get more power out of them. I am not going to rally or drag my car as a regular event and am looking for noticable and maximum power without sacrificing too much streetability.

 

A higher lift will require new springs and that will cause less streetability. It sounds like you are following the same path of upgrades that I am. I what 400hp daily drived on pump but 100% street driven. This is why I went with the HKS becuase it is proven to do this without getting down to replacing springs and retainers. But if I decided to go down that route I can and then raise the redline so it gives me a margin of safety with room to improve if needed. The Piper's sound alot like the JUN cams so both great products but to get maximum power out of them but they are harder to get to idle than the HKS. You can make them idle with cam gears and tuning but to use them to their full ability that gets sacrificed in one way or another. I am sure a good tuner and EMS can help overcome these bariers but I don't have an EMS right now and then again I don't think you will see any improvements with these over HKS until you upgrade your turbo if you even see it then. Once again just my opinion and why I chose to go with HKS , they have been proven to provide more HP and torque than others right out of the box.

 

Thanks for your input. Other than them being about 400 dollars cheaper than the pipers make them very attractive. I was going to do the HKS 264in 272ex from Buschur's recommendation as well as some other reputable shops.

 

Trust me you will be happy, Use the extra 400 + 150(FPR) for injectors and 255 pump and a FPR (Fuel pressure Regulator) if you can find one. Lancer shop is the only place that I know of that has one that bolts up. But you can go without it if so. That will get you the extra fuel for increased torque and hp and running higher boost.

 

Um with cams(HKS), exhaust no FPR or injectors are needed. The original poster really should get tuned by someone he and the car will be much happier. A fuel pump should be added as the stocker gets quirky when hot.

 

They may not be needed but depending on what he is using to tune they will be getting into the higher duty cycles if he runs any higher boost. If not though that is a true fact. As for the FPR it is not a complete need but it will add some consistancy to the tune and more ease of mind knowing the pressure is being handled correctly. A pump would be smart regardless , that I completely agree.

 

how much did you pay out the door.. iam thinking about cams next year.

 

The FPR does not add any consistancy not trying to argue or be mean its pretty easy to measure. a FPR is good in certain applications for its adjustability the stocker (like so many other components on this wonderful car) is a good piece. If IDCs are a problem with these mods a serious look needs to be given to the tune. Cylinder pressures and head gaskets and cranked timing are in the cards.

 

I have the pump and I think your advice is good and stick with HKS and use the extra money for injectors. I just need someone to help retune the fuel map with the UTEC or dynolfash it again to compensate.

 

Understandable I don't get into the crazy clown debates , I am just the type of person that has a problem with trust in some of the stock fuel componets. The FPR was one of them becuase of the afrs were much harder to get smooth again after I installed the pump so that is kind of what my hypothisys that I came too. Others have came to this as well with similar issues and it has been brought up so it is totally optional and would be the last in line if purchased at all. I understand the cards in the hand I was just looking a different hand in the fuel componets. I do understand your points though and thanks for making it more clear. Its good that you could chime in and prove some extra thought.

 

I do plan on getting it tuned by Al, the man himself. He was scheduled to come to Chicago on the 7th but he's busy working on his car for the DSM shootout so I guess I'll just have to wait and see when he'll be availuable for the custome street tune.