engine build ls/vtec sc61?
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From: ct
Re: engine build ls/vtec sc61?
With a 60 trim what rpm do you reach full boost? If I decided to go with a 60 trim would you suggest to go with a .82 at hotside? I tried searching info about the
Sc54 but the by search wasn't working. What trim is that turbo
Sc54 but the by search wasn't working. What trim is that turbo
Re: engine build ls/vtec sc61?
ive run both the gsr cams and ctr cams. the gsr cam gives a better all around powerband while the ctr cams give a little more higher end power. You can make the same power on a higher compression motor and a lower compression motor just takes more or less boost and timing. The higher compression on pump gas is not going to be so forgiving while the mid 9:1 compression will be and is safer to run with pump gas for higher HP applications. Either way its going to need a good tuner.
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From: KC, KS
Re: engine build ls/vtec sc61?
My .02:
Let the turbo do the work and go 9:1. I'd rather run a few more pound of boost @ 9:1 than 10:1. This post is very interesting:
http://www.evans-tuning.com/dynocomp_9vs10to1.html
Let the turbo do the work and go 9:1. I'd rather run a few more pound of boost @ 9:1 than 10:1. This post is very interesting:
http://www.evans-tuning.com/dynocomp_9vs10to1.html
Re: engine build ls/vtec sc61?
I'd rather not even worry about a few pounds of pressure, and have a better acceleration rate in between shifts with better recovery, that a dyno just doesn't record since it is a "snapshot" of a particular condition. Jeff's arguement looks at power while in boost. My argument falls outside of boost pressure, which I believe is just as important.
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From: east coast, the best coast
Re: engine build ls/vtec sc61?
Changing the cams out to ITR/CTR will net more power. If my goal was to make 400hp I would rather make it on say 15psi instead of 18psi. ITR cams will make it run more efficient thus make more power but like The Shodan said, it will not make much of a difference at all in spool. I picked up an SC61 as well but I've had a 60trim for the past 2 years and it made 425whp on pump gas which is more than enough for the street and 475whp on 112oct. The SC61 had been boxed up in a closet for almost 4 months now because I just love the power and spool of the 60trim. I just decided to slap on the SC61 because I want to go faster in the 1/4 mile otherwise the 60trim is perfect.
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