ls1guy1968

ok so im going to get a custom ground cam from texas speed for my lm7 motor. it will have an ls2 intake/injectors stock
the heads will be sent to texas speed and will receive their porting job (http://www.texas-speed.com/p-1172-pr...-castings.aspx)
now were left with the cam, I am going to get this setup (http://www.texas-speed.com/p-1159-pr...-castings.aspx)
I have emailed and talked to texas speed about the cams offered and they are just too big for me. they have said its ok to get a custom one with the kit instead not additive price! I am baisically modeling the cam after the 02-04 ls6 cam. 204 218 .551 .547 117
I will be going a bit bigger and have done a lot of research and a majority says to go with not so much a larger lift but more duration which makes sense to me.
what I have so far intake 220 .564
exhaust 222 .568
lsa 114
the only thing that gets me is the icl intake center line I really have no idea what this is and need help the options go from 106-118
this is a street/ occasional strip daily driver and want to preform well on the street. any help is greatly needed/ appreciated!

Gray86hatch

iTrader: (83)

Get a true custom not a shelf grind.

Www.flowtechinduction.com

Tim

ls1guy1968

It is I can basically customize anything it's a comp cam custom grind

MMWS6

ICL represents where the intake lobe's peak lift occurs in relation to crankshaft rotation, measured in degrees. You can use this value to grind a retard or advance into your cam from the get-go. so, lets say you do go with that 114LSA you could have the ICL set at 116 and you will have advanced the cam 2*, then the other way if you get an ICL of 112 you will retard the cam 2*. Google "cam phasing" too and you'll find some good info on the subject. Can you tell I'm ***** deep in choosing a cam myself right now! Hahahahha...

mOtOrHeAd MiKe

iTrader: (8)

Here are last year's lobes from Comp: http://www.compcams.com/Technical/Ca...obeCatalog.pdf

Just to add a degree of difficulty to the matter.

And do not simply buy into the "shelf grind" hype, you have options and you have control ($$$)... make them work for it - just like strippers.

ls1guy1968

Thanks a lot guys that's a big help!

MMWS6

I will add for you too bud, careful with clearance when playing with ICL. You'll get low end torque retarding the cam and you'll get high end power advancing it. With either you are reducing clearance on either the intake or exhaust valve so depending on clearance you are dealing with in your cam choice to begin with, adjust ICL with great caution

redbird555

iTrader: (14)

I dont mean to sound like a dick man but please make sure you're correct before giving advice. Retarding a cam means to make the ICL bigger so a 114 retarded 2 degrees is on a 116 icl and advanced will be on a 112. Advancing the cam brings in power sooner retarding it adds it up top

MMWS6

Holy hek you are 100% correct sir and thank you for catching that! Ive had my head into this craziness for three straight weeks figuring out what I am up too and that is the complete reverse of what I should have said... wow, thanks again for catching that. You are no dick bud.
PM sent to OP to get in and read this

99Bluz28

iTrader: (35)

So do you want aggressive or mild cam lobes, high lift (over .600") doesn't make the cam lobes aggresse, it's the ramp rate that does.
So do you want mild or aggressive lobes, low or high lift?

Do you want it to idle as smooth as the stock cam, does it need to pass tail pipe emissions, or do you want a mild cam sound or heavy lope?

Where do you want the power gains, up top, down low ?

What's the compression ratio going to be with the new heads?

FYI, the more info you can give use about your wants/needs on how you want the engine to perform the better the chance you'll get what you really want.

ls1guy1968

Don't want a smooth idle but don't want an overwhelming chomp no I don't need to pass emissions so that's not an issue compression is prob 9.5 or 10:1

ls1guy1968

And power in the low to middle area just not up on the revlimiter

99Bluz28

iTrader: (35)

How about the lobes mild or aggressive, low or high lift?

222/226 111lsa+3(108 ICL)
This cam will have a IVC of 39 and 2* overlap.

99Bluz28

iTrader: (35)

FYI, I made a correction on the above specs. I meant to put 111lsa +3 with 2* overlap.

As far as lobes, I'd go with the 222 LXL(intake) and 226 XE(exhaust) on the TSP custom cam configurator.