Thread: Heads and cam
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Old 11-08-2016, 07:03 AM   #46
Schlok
 
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Drives: 2015 Z/28 #397 2022 ZL1 #1799
Join Date: Jul 2009
Location: DC
Posts: 521
Quote:
Originally Posted by 247 Z28 View Post
The posts in this thread where the cars have made ~575 whp with their mods seem most accurate.

From ~492... Guess is: headers and BTR 3= 545whp, + TB & IM= 563whp, + porting= 571 whp.

If 600whp is the goal, as mentioned, fuel choice may get you closer but without a bump in compression to ~12:1 or greater or additional part cost, its a reach. The 600 claims seem way generous in most cases. There is no honest way 575 could/should be surpassed with your mods... on a dyno giving the numbers how they should be.

The cam choice seems right on for keeping it enjoyable enough for cruising... any more aggressive hp goes up while your hp to torque output starts to separate more. Although a BTR 4 or similar spec with E or 100+ could make up 20 peak whp easy.
Agreed, unless you go forced induction OR a new long block config 575 is about the happy place of this engine.

http://www.vengeanceracing.net/packa...amaro-z28.html

I have the stage 5 on my car, if I wanted more, the build cost over doubled. I looked at Katech as well, the price gets crazy beyond a certain point.
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