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Old 07-29-2025, 03:32 PM   #1
ULTRAZLS1


 
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Drives: 14 Silverado LTZ Z71, 16 Camaro SS
Join Date: Nov 2009
Location: Jackson, Michigan
Posts: 4,423
Magnuson 2650 pulley combo and hp/boost?

going to the boost side. Got a 2650 coming. built shorblock. i will have enough fuel to run full e85 up to about 900 rwhp. Full DI no port

I have asked a couple people about combos and just wanted a few more opinions before i buy the kit.

Im doing the 10 rib kit with lt5 tensioner.

I was told to go with the 9.2 15% lower and 85 mm 6% upper. To get me around ~17 lbs and ~850 rwhp range

-Magnuson 2650
-Stock lt1 heads with lt4 gaskets
-Built short block with 11.5 compression
-stage 2 cam (dont know specs atm but its medium size still can use stock TC, 6800 or so shift points)
- full catless exhaust with 2 inch headers
-103 tb and 5 inch intake
-full e85 all DI

Like i said just looking for the pulley combo to be 850 rwhp range on full e85. Can do more on a mix etc but i think that should be plenty for now. Raceweight will be 35-3600 with driver after adding blower components. Car was under 3400 with driver NA.

thanks for the insight
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