Ok Guys How Much Boost Can These Motors Handle For Instance My 4.8,and transmission?I WANT 10 PSI
Stock Bottom End/boost
Ok Guys How Much Boost Can These Motors Handle For Instance My 4.8,and transmission?I WANT 10 PSI
Engine no problem.
Gen-III stock bottom ends push 500+ all the time.
Weak leak, as in any stock engine really, are going to be the rods, then the pistons.
Trans aint gonna like boost. First thing I did on my turbo
build up is get a built trans put in.
2002 Tahoe 4.8 - soon to be turbo'd - SOLD
1989 Mustang - LX Vert - 351W-TT - 2inches of dust covering it
2012 Raptor - 497rwhp at 10psi
If you aint breaking - you aint going fast enough
the motor will be fine ,but the tranny will go soon after,then the rearend.maybe multiple trannies.do yourself a favor and after the first tranny just do a 80 e swap.trust me,at minimum have the tranny built to level 5 specs.
mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .
a 4.8 will hold mor then other motors. rod bolts will help and good springs. if you have doubts on boost look at mine. ive run 18 for a while and untill i parked truck i was out beating on truck with 15psi smacking 7600 fuel cut off. no signs of issuesOriginally Posted by chevrolade
Ok Guys How Much Boost Can These Motors Handle For Instance My 4.8,and transmission?I WANT 10 PSI
2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
2002 Silverado - 427Lsx w/ Twin gt4202s
2010 Silverado crewcab Z71 - 5.3litre w/ procharger
2000 Wrangler - 5.3litre with some stance
2014 Xsport- 3.5 Eco boost
412 Motorsports
it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference
Why can a 4.8l handle more boost than a 5.3l or a 6.0l?
1991 c1500. 5.3l and 4l60e swap in progress, next paint and body.
short stroke and long rod is better for boost then long stroke short rod. its easier on the bearings. its easier to spin a smaller crank higher rpms then a much larger ones.
2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
2002 Silverado - 427Lsx w/ Twin gt4202s
2010 Silverado crewcab Z71 - 5.3litre w/ procharger
2000 Wrangler - 5.3litre with some stance
2014 Xsport- 3.5 Eco boost
412 Motorsports
it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference
no wonder i have a big azz 3.90 pulley making 5-6psi,i went down to 3.70 making 6-7psi
on some 5.3's i see them with 3.0 pulleys making 8psi
ha pulleys what are thos lol
2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
2002 Silverado - 427Lsx w/ Twin gt4202s
2010 Silverado crewcab Z71 - 5.3litre w/ procharger
2000 Wrangler - 5.3litre with some stance
2014 Xsport- 3.5 Eco boost
412 Motorsports
it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference
2 words ............ rod ratio
shorter stroke of the 4.8 puts much less stress on the rods
2002 Tahoe 4.8 - soon to be turbo'd - SOLD
1989 Mustang - LX Vert - 351W-TT - 2inches of dust covering it
2012 Raptor - 497rwhp at 10psi
If you aint breaking - you aint going fast enough
What Size Pulley Do You Guys Think I Need To Make 10lbs?im At 6-7 Psi With A 3.70,im Doing A Ls6 Cam This Week.
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