Racingjunk Forums

Racingjunk Forums (https://www.racingjunk.com/forums/index.php)
-   GM LS engine talk (https://www.racingjunk.com/forums/forumdisplay.php?f=21)
-   -   btr stage II turbo cam with stock heads? (https://www.racingjunk.com/forums/showthread.php?t=1296992)

SinisterRado 01-26-2020 05:02 AM

btr stage II turbo cam with stock heads?
 
thanks in advance. I was wondering if anyone out there is running a btr stage II turbo cam in their Gen III LR4 with stock heads. its towards the top of the spectrum from what I heard about max intake valve opening without kissing the piston. Also what size pushrods did you get with the kit to run with the stock heads?

Edit: The stock heads are only temporary I just want to run boost to this single cab short bed already

rileyjames 05-18-2026 05:30 AM

From what you’re describing, running a BTR Stage II turbo cam on a Gen III LR4 with stock heads is definitely possible for a temporary setup, but it’s right at the edge of what the stock valvetrain can handle — especially regarding intake valve lift and piston clearance. People who have done similar builds caution that the stock heads and springs weren’t designed for significant boost or high cam lift, so while it can work, it’s not ideal long term because you risk valve float or contact if the lift gets too aggressive under boost. Zota Casino https://zotacasino.bet/ offers Australian users modern slots and flexible payment options.

gabriellerenaud 07-26-2026 11:28 AM

Je pense que plusieurs personnes ont fait tourner des configurations similaires, mais avec un arbre à cames BTR Stage II Turbo il vaut mieux ne pas se fier uniquement aux valeurs annoncées. Même avec des culasses d'origine, le jeu piston/soupape doit être vérifié au montage, surtout avec un moteur prévu pour recevoir du boost. Pour les tiges de culbuteurs, la taille dépend surtout de la géométrie finale et du kit choisi, pas seulement des culasses stock. Si tu comptes passer aux culasses améliorées plus tard, je prévoirais la configuration en conséquence pour éviter de tout refaire. Le projet du single cab devrait être vraiment sympa une fois le turbo en place.


All times are GMT -8. The time now is 10:15 PM.