112 lsa with turbo
112 lsa with turbo i just built my car not even a year ago but now am going to go with an sts kit. but my cam is on a 112 lsa...sts reccomends nothing below 115..but i have seen people that have my cam with a turbo..didnt really want to open her back up..but will if it will make a huge difference...OPINIONS?? Thanks Chase
I think his point that you can have 112 LSA and not even have overlap depending on duration. It's more abut the overall specs and not just one of them. So saying that one LSA is right or wrong is dumb, not saying that towards you. Kind of like the guys on youtube that say they can tell that the LSA is by hearing the car.
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112 LSA It is not ideal but should work OK. There are lots of people out there with bigger cams on same LSA making good numbers. If you don't like it after you install the kit swap to something else. You probably will need to get your tune fixed if you do change cams. Something to consider unless you tune yourself.
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Yes, but the LSA alone isn't enough info to figure out the overlap, which is the real issue. Overlap is a function of LSA, intake duration, and exhaust duration. To say that 114 OL is good but 112 OL has too much overlap can't possibly be true. The Buick GN stock cam is on a 106 LSA. Is that bad? You can't tell unless you know the duration. Beyond that, we know that overlap is worse with high backpressure/boost ratio's. But again, nobody knows just what backpressure/boost works with what overlap.
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I have serious doubts that widening the LSA would gain any power at all. In all likelihood, it will lose power. Either way, the OP would gain much more power by moving the turbo up front or increasing the size than he would by changing the LSA by 2 deg. If you're trying to optimize the combo, why not go after the low-hanging fruit?
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What size turbo were you running bc?
It would be nice to get an idea of how much overlap vs. backpressure a person could get away with.
It seems that some are managing to make more power with a little overlap, even though they're running backpressure in the 1.5 up range.
It would be nice to get an idea of how much overlap vs. backpressure a person could get away with.
It seems that some are managing to make more power with a little overlap, even though they're running backpressure in the 1.5 up range.
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From: Westbank of N.O.
Setting a power goal would do nothing....it's more about total overlap/total boost he wants to see. More overlap= more wasted boost. U can have a low-duration cam on a 106 and still have negative overlap. Go for the low-hanging fruit!
Why should he be worried about the LSA of his cam if hes only aimin at, say, 500 horse and hes got a system that will support, say, 700 horse? He asked if the cam choice would make a difference. Read the first post. If these are the numbers hes workin with, then clearly a cam change wouldnt make a big enough diff to warrant goin through all that hassle.
The first thing every build needs is a power goal.
WOW never thought i would get this much info lol....my power goal is mid six hundreds on say 10 psi???? im a pretty noobie to FI..Looks like i will be sticking with the 112 cause i really dont want all that hassle if its not needed. Again thanks for all info and any more would be appreciated Chase