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Dyno results Blown 347 sbf

27K views 5 replies 5 participants last post by  Dave65  
#1 · (Edited)
Blown SBF 347 DART stroker - YouTube

Dart block SHP ,dart pro 1 cnc 225 heads,weiand 174 blower 6psi boost 4.125 x 3.25.....comp 8.6:1
Torque 480 @ 3000 revs right up to 6300 revs peaking at TQ 536 @ 5000 revs... HP 582.4 @ 6300 revs
Had smaller pulley for blower ,but was slipping too much with lower boost ........all forged internals Comp Cam etc
Built by John Sleath Race Cars
 
#3 ·
you might know this tip already but ill throw it out there for you.

if your having a belt slippage problem at wot buy a new belt. coat that belt with vht prior to the pull, letting it tack up good.

make your pull. you can then coat your other belt and prep it while shes cooling off. swap belts on each pass or pull...will show you max boost and should not slip