RedCelicaTRD":3ikhczel said:
Ok people, the question was what cam sucks the most or do they both suck and only upgradeing one is pointless. I dont care about intake manifolds or turbo setups since I already know what I'm going to do. I guess I was unclear when I said a lil more power, I ment a lil more power then the stock cams can provide. I don't mean to be an ass but lets keep it to the topic at hand.
Well if you already know what you are going to do then why bring it up? We were commenting on the following statement:
RedCelicaTRD":3ikhczel said:
Ok, so if I remember correctly everyone says that the stock cams are a major restriction and one of the reasons our cars dont pull to well in the upper rpms.
We were basically saying that sure the cams are a restriction, however they may not be the first thing that you should attend to. Zeus and I said that turbo and intake manifold will probably be way more effective than cams if you have a turbo upgrade, while Alltracmonkey pointed out that even turbo upgrades might not be the safest thing in the world because people aren't very responsible with them, and therefore cams might be better. Both are reasonable arguements.
Regardless of whether you get a single cam or both, you really wont take advantage of them until you get them tuned. A quote from RickyB:
RickyB":3ikhczel said:
they will make a noticeable difference if you are above 250rwhp or so....Of course, the stock ECU is not going to do a very good job of controlling a car that has large cams and all the other alterations that such a motor would have to have done to it to make such cams worthwhile and safe
Blue_GreyST185":3ikhczel said:
Just pushing up boost causes problems, you have to add fuel and then you have to control the fuel
You will also find that bigger cams also require more fuel, because they let more air into the engine. (however increased boost has other negative side effects)
Your setup is probably quite nice. :smokes: 20b + cams + intake manifold = big power if you have the tuning
Basically my opinion is that the 3SGTE starts to show signs that it is really in need of some breathing room after 250whp. This is why both cams and an intake manifold make such large improvements at this point. However, you need to be able to get to that point, and honestly, it is quite difficult to do this without a turbo upgrade without running very high boost. Therefore, you will probably notice the largest gain from an intake cam only, however you would also see gains from the exhaust cam. I have no clue what the ratio of power is. It probably depends largely on your engine setup. You might gain 5whp more from the intake cam than the exhaust cam. You might also find that using two performance cams has increasing returns...maybe a 264/256 combo if you are looking for a mild staggered setup. This is part of the reason why some people use 272's on the intake and 264's on the exhaust. Personally I think I'd upgrade both.
I think I've answered your question.
