LS3 cam choise.
Thread Starter
Teching In
Joined: Sep 2007
Posts: 10
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From: Sweden
LS3 cam choise. OK. I know theres alot of threads regarding this question but I would really appreciate some feedback on this one.
.600 lift on both intake and ex.
238 243 with 115 lobesep.
Thanks!
//Henrik
.600 lift on both intake and ex.
238 243 with 115 lobesep.
Thanks!
//Henrik
Im no expert but I've poured over hundreds of threads on cam selection for LS3's and it looks pretty radical compared to most for street use that is. I dont think the lobe sep is all that bad I saw one thread somewhere where it was a big cam ( more duration than yours ) on a 116 and it made great power up top which is where your cam will shine too. If you spin the engine high enough I'd guess that cam will get you in the 500 whp range with supporting bolt ons and tune. Probabky have to take it over 7K RPM for that though so I hope the valvetrain and especially the vale springs are up to the task. I'd replace the valve springs once per year with a big cam like that and run good duals
Mine is in the .620 lift range and has more duration. The car idles great. You will need the correct gears, converter, exhaust to take advantage of it. The problem with alot of power up top is getting a intake manifold to support it.
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is this stock displacement?what kind of intake?exhaust setup?vehicle weight,gears,type of tranny,etc..
that all comes into play when selecting a cam..the cam has to work with the rest of the motor as well as the gearing and type of tranny..it could be allright or it could be a dog..give us more info..
that all comes into play when selecting a cam..the cam has to work with the rest of the motor as well as the gearing and type of tranny..it could be allright or it could be a dog..give us more info..
Last edited by 66deuce; Apr 26, 2010 at 09:26 PM.
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lobe seperation is just a by product of the correct valve events for a particular combo..
i know,splittin hairs,lol..
im going by the cam specs he gave. we can get as technical as you want, but let's start with the car as a combination first.
Thread Starter
Teching In
Joined: Sep 2007
Posts: 10
Likes: 0
From: Sweden
The car is a 1968 Camaro and the weight is reduced so the total weight will be somewhere between 13-1450kg. (3-3200lbs)
It´s a T56 and 3.73 in the rear with 25"-ish tires. (275/35-18)
Of course there are headers on (Super Comp 1 7/8")
100mm throttlebody and 100mm MAF.
Dual 3" exhausts.
It´s wonderful to read about your thoughts and reflections!
//Henrik
It´s a T56 and 3.73 in the rear with 25"-ish tires. (275/35-18)
Of course there are headers on (Super Comp 1 7/8")
100mm throttlebody and 100mm MAF.
Dual 3" exhausts.
It´s wonderful to read about your thoughts and reflections!
//Henrik
The car is a 1968 Camaro and the weight is reduced so the total weight will be somewhere between 13-1450kg. (3-3200lbs)
It´s a T56 and 3.73 in the rear with 25"-ish tires. (275/35-18)
Of course there are headers on (Super Comp 1 7/8")
100mm throttlebody and 100mm MAF.
Dual 3" exhausts.
It´s wonderful to read about your thoughts and reflections!
//Henrik
It´s a T56 and 3.73 in the rear with 25"-ish tires. (275/35-18)
Of course there are headers on (Super Comp 1 7/8")
100mm throttlebody and 100mm MAF.
Dual 3" exhausts.
It´s wonderful to read about your thoughts and reflections!
//Henrik
If your curious about what would work best cough up the 25 bucks and get PatrickG to custom spec you a cam and compare it to what you have.
Thread Starter
Teching In
Joined: Sep 2007
Posts: 10
Likes: 0
From: Sweden
Well then daily driver status is obviously not a concern. Doesnt sound like budget is tight either. 3.73 might be a bit tall for that cam though your going to have to wring the snot out of it to get the benefits of that cam but Im guessing you have the FAST intake with the 100mm tb? If so it sure sounds like your supporting mods are in line so I guess you really have to decide for yourself what you want the car for? That cam will make big power but screaming high RPM Id be willing to guess with 3.73's you probably wont get out of third gear through the 1/4 in fact.
If your curious about what would work best cough up the 25 bucks and get PatrickG to custom spec you a cam and compare it to what you have.
If your curious about what would work best cough up the 25 bucks and get PatrickG to custom spec you a cam and compare it to what you have.
The intake is a LS3 org.
And I´m not really in for dragracing. It´s suppose to be screaming around on tracks. Mostly sideways. Not just in a straight line.
Well if screaming is your dreams then I dont think your going to have much trouble living them with that cam LOL. Just make sure you have good quality dual valve springs in there and your oiling system is up to snuff and you'll probably love it. Drop a set of Patriot Gold Extremes on once per year and you'll be good to go IMO
The car is a 1968 Camaro and the weight is reduced so the total weight will be somewhere between 13-1450kg. (3-3200lbs)
It´s a T56 and 3.73 in the rear with 25"-ish tires. (275/35-18)
Of course there are headers on (Super Comp 1 7/8")
100mm throttlebody and 100mm MAF.
Dual 3" exhausts.
It´s wonderful to read about your thoughts and reflections!
//Henrik
It´s a T56 and 3.73 in the rear with 25"-ish tires. (275/35-18)
Of course there are headers on (Super Comp 1 7/8")
100mm throttlebody and 100mm MAF.
Dual 3" exhausts.
It´s wonderful to read about your thoughts and reflections!
//Henrik
you don't need to change springs once a year. there are solid roller springs with much higher spring pressure and much more harsh cams going longer than a year. that cam is not as big as you guys are making it out to be. to the OP, run it and at most, pull a spring and check pressures once every 1-2 years or 20k. any more than that is a waste of money
Thread Starter
Teching In
Joined: Sep 2007
Posts: 10
Likes: 0
From: Sweden
And regarding changing springs sounds kind of strange. Of course the springs softens up after avile but are they really that bad?
The springs that´s in the engine by now are "single"springs that Lunati sent with the cam.
Any local racers i know swap out the valve springs every year. It really depends on how your using the car and how much pounding you put it through. When you made comments about track drifting around etc. i just figured the thing is going to see redline and stay there for extended periods. If your running single beehives they are not that high in pressure and will last longer but not what I would run if i was buzzing it high and keeping it there hence my remark about Patriot Extreme duals. I had no idea you were running singles and Im surprised with that cam. I know its not much lift but thats a good whack of duration and means lots of RPM to make use of it. Its not as if you "cant" run the springs for years but that doesnt mean its ideal IMO. It cant hurt to change them but if they go out on you it can be catastrophic.
If your cruising it around and only wringing it out periodically then sure run the singles and check em as mentioned after a couple years perhaps.
If your cruising it around and only wringing it out periodically then sure run the singles and check em as mentioned after a couple years perhaps.
