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Generation III Internal Engine
1997-2006 LS1 | LS6
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Old 08-23-2010, 11:36 PM   #1
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Default looking for a cam for my turbo ls1

i was torn between a couple of cams for my car. i have a stock ls1 with a t70 turbo running 9lbs, im looking to get a pair of 6.0 heads and a nice turbo cam, i found a couple, one i was told was good for a turbo set up is..
224/230 .612/.612 116 LSA from lep but once i looked it lep says its for a supercharger not a turbo, then another i found from lep that is supose to be for turbos is...
595 595 236 234 117LSA any idea which one is better? and im open to suggestions too!! thanks!!
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Old 08-23-2010, 11:51 PM   #2
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For a turbo setup, its really really tough to beat a custom grind. Thats my vote right there. Thunder Racing, TSP, EPS, Speed Inc, SNL....pick a flavor. They can all do it.
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Old 08-24-2010, 01:40 AM   #3
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All of the turbo cams I see listed are reverse split, at least CompCams and CamMotion cams are.
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Old 08-24-2010, 10:06 AM   #4
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Quote:
Originally Posted by 99Bluz28 View Post
All of the turbo cams I see listed are reverse split, at least CompCams and CamMotion cams are.
Yup, you need to look into reverse split, or even split cams. Exhaust pressure is your friend.
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Old 08-24-2010, 06:27 PM   #5
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but they sell so many different ones.... how the hell do i know which one to get???? lol
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Old 08-24-2010, 06:29 PM   #6
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i want something that sounds aggressive but it also streetable, and makes some good power!
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Old 08-24-2010, 06:58 PM   #7
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If you want it to sound aggresive your going to need overlap. Personaly I would look at something like 225 225 .581 .581 113. Should have good manners with a stock shortblock; but wont be extremely aggressive.
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Old 08-24-2010, 07:04 PM   #8
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Speed Inc TU1 or TU2
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Old 08-24-2010, 11:19 PM   #9
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which cam is more radical? tu2? specs are

TU1 225 225 .581 .581 113

TU2 236 236 .587 .587 112.5

obviously the higher lift and longer duration means it will be more lumpy correct? i want something that sounds crazy as ****! but i sont want to lose power either, im looking to upgrade to 6.0 heads and a t76 with about 12-15lbs
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Old 08-25-2010, 12:56 AM   #10
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He was right when he told you about needing something with more overlap. Lift will not help determine that equation.

Here is some free math for ya:

TU1 = -1░ of overlap. You should be able to distinguish that the car is cammed.
TU2 = +11░ of overlap. DEFINITELY noticeable. Even Helen Keller would know the car is cammed.
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Old 08-25-2010, 08:58 AM   #11
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How did you figure out the over lap equation? And what is a split?
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Old 08-29-2010, 12:22 AM   #12
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Quote:
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How did you figure out the over lap equation? And what is a split?
Overlap = ((intake duration + exhaust duration)/4 - LSA)x2.

For example:

224/224 114LSA

224+224=448. 448/4=112. 112-114= -2. -2x2= -4.

So that 224/224 cam would have -4 degrees of overlap.

A "split" cam has different intake and exhaust durations, like a 224/228 or a 232/234. These are "traditional" split cams, with more exhaust duration than intake. A reverse split cam has a higher intake duration than exhaust duration, like a 230/224. An "even" split or single-pattern cam has the same intake and exhaust duration, like a 224/224 or 228/228.
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Old 08-29-2010, 12:39 PM   #13
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so with a turbo more positive overlap is better? have 1 degree of overlap is better then having -1 degree of overlap right?
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Old 08-30-2010, 03:32 AM   #14
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With that little amount. Either would be ok.
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Old 08-30-2010, 07:52 PM   #15
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Quote:
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so with a turbo more positive overlap is better? have 1 degree of overlap is better then having -1 degree of overlap right?
If I remember correctly, turbo engines like less overlap. But there won't be much difference between -1 degree and 1 degree of overlap.
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Old 08-30-2010, 08:36 PM   #16
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I was looking at a ms4 can that has 16.5 overlap... that probably is too much right?
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Old 08-30-2010, 09:15 PM   #17
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an ms4 is not something you want in a turbo car.
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Old 08-30-2010, 10:16 PM   #18
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If you are asking about an MS4 cam for a turbo, then you need to start back at the beginning and forget the cam knowledge you currently have.

I would call one of the sponsors and tell them what you want. They are going to be able to tell you what works and what doesnt. I dont think there isnt a valid sponsor on here that couldnt take care of you on this. Any of the 5 that I listed in the #2 post will be more than happy to take care of you regarding your build.
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Old 08-30-2010, 10:16 PM
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117, 228r, 234, 236, 48l, 595, cam, cams, comp, duration, ls1, speed, texas, tu1, turbo


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