turbo cam
12-21-2010, 06:32 PM
#126
???it was stated many times is that lsa is a measurement of events and is irrelevant, but many times ive hear references between lsa and different engines ? is a 106 lsa for example the same as the 106 on a buick or vw engine?? will it affect the different engines the same?
12-23-2010, 09:27 AM
#127
???it was stated many times is that lsa is a measurement of events and is irrelevant, but many times ive hear references between lsa and different engines ? is a 106 lsa for example the same as the 106 on a buick or vw engine?? will it affect the different engines the same?
12-23-2010, 09:22 PM
#128
12-24-2010, 03:22 PM
#129
FormerVendor
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I've done just about everything you can do to a car and have a good amount of experience, including motor builds, transmissions, axles, restorations, and conversions, BUT have VERY little experience with FI. I've read this entire thread and it's very informative, as I just got my first turbo car. Got a good deal on it since the motor was knocking.
These last few days have been a crash coarse for myself
I do tend to agree with engineermike on his theories, as it seems to make the most sense.
I'd appreciate any thoughts or opinions on my project.... I'm building an LQ4 that I just picked up and am trying to decide on a cam shaft. I have the STS rear turbo 60mm on an f-body. I want reliability, low-maintenance, and just for the sound, a cam that has some lope (but not too crazy). I'm only wanting around 520-540rw, which I know can easily be done. I'm not, by any means, going to push it to the limit. So what I am asking is, "What is an example of a 'small' cam on the market that still has some mild to medium lope to it?" I want to have most of my power at low RPM's as I don't want to rev it to the moon to get max power. I want full boost to kick in at low RPM as possible, but still "some" lope.
I was thinking somewhere in the neighborhood of 220/230 w/ .550-.580 lift at the most, on a 115/116LSA
Any thoughts or suggestions are welcome...thanks!
Jason
BTW, I'm using the stock 317 heads w/ Comp 918 springs, and LS6 intake. Also, I am planning to get the heads re-surfaced just to get them perfectly flat and sealed up good, and get some good piston rings, as well as hone the cylinders. Thats about as far as I want to go with the build. I don't want to throw 1000s of dollars into it like I've done in the past
Would it be worthwhile to use the bigger return spring with the 60mm garrett turbo?
Thanks again!!!
These last few days have been a crash coarse for myself
I do tend to agree with engineermike on his theories, as it seems to make the most sense.I'd appreciate any thoughts or opinions on my project.... I'm building an LQ4 that I just picked up and am trying to decide on a cam shaft. I have the STS rear turbo 60mm on an f-body. I want reliability, low-maintenance, and just for the sound, a cam that has some lope (but not too crazy). I'm only wanting around 520-540rw, which I know can easily be done. I'm not, by any means, going to push it to the limit. So what I am asking is, "What is an example of a 'small' cam on the market that still has some mild to medium lope to it?" I want to have most of my power at low RPM's as I don't want to rev it to the moon to get max power. I want full boost to kick in at low RPM as possible, but still "some" lope.
I was thinking somewhere in the neighborhood of 220/230 w/ .550-.580 lift at the most, on a 115/116LSA
Any thoughts or suggestions are welcome...thanks!
Jason
BTW, I'm using the stock 317 heads w/ Comp 918 springs, and LS6 intake. Also, I am planning to get the heads re-surfaced just to get them perfectly flat and sealed up good, and get some good piston rings, as well as hone the cylinders. Thats about as far as I want to go with the build. I don't want to throw 1000s of dollars into it like I've done in the past
Would it be worthwhile to use the bigger return spring with the 60mm garrett turbo?
Thanks again!!!
12-24-2010, 07:14 PM
#130
That was a lot of good reading.
TDP, based on page 1 of this thread, the EPP cam sounds good. Also, dont waste your time decking the heads and replacing the rings on a low power turbo build. It will do just fine as is.
Im running a LS6 and man I miss that lope. Im also looking at replacing the cam before a 3 bar retune. I will report back with power numbers after ONLY changing the cam with the same boost levels.
TDP, based on page 1 of this thread, the EPP cam sounds good. Also, dont waste your time decking the heads and replacing the rings on a low power turbo build. It will do just fine as is.
Im running a LS6 and man I miss that lope. Im also looking at replacing the cam before a 3 bar retune. I will report back with power numbers after ONLY changing the cam with the same boost levels.
