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Need Help roller rocker selection

Old 01-24-2008, 02:35 PM
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Default Need Help roller rocker selection

Heres my setup

ls1 with 241head
Patriot Gold spring good for .650 lift
TSP Torquer V2 232 234 @ .595 .598 112lsa
1 3/4 long tube headers to custom exhaust 2 1/2" with x pipe
intake (I have the ls1 in an RX7)

what going on the car when it comes in
BBK SSI intake manifold
BBK 80mm TB
SLP 85mm maf

So my question is if im taking off the manifold I might as well install roller rockers, harden push rod. (some one told me I need them with my new cam) But which roller rockers should I go with 1.7 or 1.8 let me know I am new to the whole LSX engine.

BTW I searched and nothing came up with the setup I have

Thanks
Tony
Old 01-24-2008, 03:01 PM
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I have heard the Jessels are top notch but pricey and the yella terra ultralights are not far behind with the Harland Sharps also being quality pieces. If I go TFS on heads I will be looking into this more so I am subscribing. Interesting thing thing is the stockers are a bout the lightest out there. HS will rebuild stockers and eliminate the needle bearing issue for $225. With a V2 I don't think you want to go 1.8 ratio cause it increases lift
Old 01-24-2008, 03:05 PM
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You could always have your stock rockers rebuilt by harland sharpe. New larger trunion with with new bols, sealed bearings etc. for $250.
Old 01-24-2008, 03:14 PM
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Like they said, have your stock rockers rebuilt and then a stockish length 7.35-7.4 pushrod would work fine. Surprising the cam install didn't already have hardened pushrods.
Old 01-24-2008, 03:34 PM
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I would make sure the rockers work with the cam. If you change the ratio you also change the lift, duration, and overlap of the cam.
Old 01-24-2008, 04:42 PM
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correct me if im wrong but rr ration of 1.7 is the stock ratio right?

some one told me that roller rocker would let the engine rev faster and would be better then the traditional rocker (stock) also help with rasing the rev limit im taking my ls to 6800rpm

what would be my correct length for a push rod? 7.40 or 7.35?

also I was looking at trying these roller rockers let me know what you think they are the oem
http://cgi.ebay.com/ebaymotors/4-8-5...spagenameZWDVW

Thanks for all the responses
Tony


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