Cam questions

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Cam questions

Post by boosted97sx on Fri Feb 20, 2009 3:44 pm

I was looking at getting some new cams and not sure which way to go...... which would be the best...solid or lash type cams?
how would i choose the lift for intake and exhaust?
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Re: Cam questions

Post by MEGAS on Fri Feb 20, 2009 9:07 pm

Post your turbo setup and your power goals. Do you want to sacrifce midrange for topend or viceversa?

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Re: Cam questions

Post by 2ndcar on Sat Feb 21, 2009 2:55 am

Do you have solid or lash type pivots? The cams are going to work more efficeint with the corrisponding pivots. Lash pivots need a lot less matinence than solid, but with solid pivots your engine has the ability to have a larger RPM range which would make you want to change to a larger turbo. Unfortunately you have to check the shims in the pivots about every time you change your oil. Hope this helps

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Re: Cam questions

Post by boosted97sx on Sat Feb 21, 2009 11:43 am

heres my turbo set up and im looking for hp levels between 450 and 550...and I guess im really not that worried about top end...thats what I have my bike for Wink LOL

PeakBoost SR20DET topmount manifold

PeakBoost 3" stainless SR20DET downpipe

PeakBoost stainless steel 38mm dumptube

Garrett GT3076R .63 A/R turbo

TiAL 44mm wastegate
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Re: Cam questions

Post by boosted97sx on Sat Feb 21, 2009 11:45 am

2ndcar wrote:Do you have solid or lash type pivots? The cams are going to work more efficeint with the corrisponding pivots. Lash pivots need a lot less matinence than solid, but with solid pivots your engine has the ability to have a larger RPM range which would make you want to change to a larger turbo. Unfortunately you have to check the shims in the pivots about every time you change your oil. Hope this helps

I have no idea what I have...just know its a 96 (black top)........how hard is it to check the shims and pivots?
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Re: Cam questions

Post by 2ndcar on Sat Feb 21, 2009 1:21 pm

sr's came with lash type, it involves removing the head and and using a tool to check for clearances. tomei makes a set of solid type pivots. now i'm not sure if you have to check it that often that's just the theory behind it based on tolerances. based on your set up though it would definitely help make some good numbers.

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Re: Cam questions

Post by boosted97sx on Sat Feb 21, 2009 6:20 pm

I was looking at the HKS stage 2 cam which is 256 intake but there are 2 different ones for exhaust and there 264 and 272

so how would i choose which on to go with for the exhaust side?
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Re: Cam questions

Post by 2ndcar on Mon Feb 23, 2009 11:39 am

You should really look at getting a bigger intake cam, especially with the size turbo your running, you'll be restricting yourself too much, imo. I would look at 264/264

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Re: Cam questions

Post by boosted97sx on Mon Feb 23, 2009 12:11 pm

would this work?

http://www.240sxmotoring.com/kes1srcatyb.html
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Re: Cam questions

Post by 2ndcar on Mon Feb 23, 2009 12:24 pm

yes sir

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Re: Cam questions

Post by boosted97sx on Mon Feb 23, 2009 1:44 pm

cool deal found a set of cams, springs and retainers Smile
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Re: Cam questions

Post by lilskyline240 on Mon Feb 23, 2009 4:41 pm

normally when i get cams i dont change duration between intake and exhaust side. Like 264 and 264 is a good setup. I wouldnt run different duration cams unless ur really building more of a race car then a car you daily drive
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