nate_2k5

that is a stupid idea, keeping boost the same and just putting on a vtec head will not gain you 65-100hp. the best method would be to make sure your motor is healthy and upgrade to a larger turbo, at 10 psi you should be able to push at least 230 or 240 with a medium sized turbo. 2.5" or 3" ideally will open up the turbo so it will spool faster and make more power. tuning will go along ways too

viet_boi_racin

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18c5__Owns &raquo;</TD></TR><TR><TD CLASS="quote">Im planning on boosting an ls. Ive been told and seen a stock block ls push 300whp easy.</TD></TR></TABLE>

300whp is pushing it for a completely stock LS motor. If you have the head ported and polish and with bolt-ons then yes you can do 300whp easily with a stock LS block.

Most people make around 230-240 on 10lbs of boost and 260-270 on 12-13lbs.

b18c eJ1

lol revving to only 7k rpm? Not going to happy buddy you're probably going to rev that thing to 9000rpm and spin all your rod bearings.


plus the b18c will be faster if you're only revving to 6.5-7k rpm lol.

Rooftop voter

iTrader: (1)

What about with boost in the mix now. Unbuilt Ls/vtec pushing boost agains a gsr pushing boost. The gsr can do more with less boost, but the ls/vtec with lower compression can handle more boost. Is it any mans game now?

doood

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rooftop voter &raquo;</TD></TR><TR><TD CLASS="quote">What about with boost in the mix now. Unbuilt Ls/vtec pushing boost agains a gsr pushing boost. The gsr can do more with less boost, but the ls/vtec with lower compression can handle more boost. Is it any mans game now?</TD></TR></TABLE>

same boost levels the gsr will still make more power. unbuilt lsvtec pushing more boost than a stock gsr with boost isnt a fair comparison.

Rooftop voter

iTrader: (1)

I know that a stock gsr will make more power than an unbuilt ls/v, but which could you boost to a higher WHP?

doood

iTrader: (1)

stock lsvtec vs. stock gsr both on boost?

gsr will make more power because the higher you rev the more power you can make

o0Jash0o

coin toss until the lsvtech fails and throws a rod, shatter a piston etc etc etc

b18c eJ1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by o0Jash0o &raquo;</TD></TR><TR><TD CLASS="quote">coin toss until the lsvtech fails and throws a rod, shatter a piston etc etc etc</TD></TR></TABLE>

Rooftop voter

iTrader: (1)

Why would it do that?

NAmodified

stock ls vtec with gsr head and gsr internals, will take on a stock gsr. Me and some buddies tried it. Try it for yourself

916jDmDc2

ls block has more torque then gsr so if you put on gsr head and same internals with new ecu and everything the same as gsr. the ls vtec will take it with out no problem.

ANONYMOUSdeecee

on the ls/vtec it would depend on the head u use to do it wit....as for the lsvtec=itr power......that if u have some thing like a b16head wit like itr or ctr cams.......maybe....i got a stock ls block/stock b16 head...still not a grs but i got a ls tranny......swap out the tranny n get a b16 tranny......u'll be holdin on to that torque.....and should be enough to beat a stock gs-r

o0Jash0o

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rooftop voter &raquo;</TD></TR><TR><TD CLASS="quote">Why would it do that?</TD></TR></TABLE>

because the build just wasnt ment to be, you rarely hear of lsvtec engines lasting more than 10k
same goes for the sohc mini me. theres a million and one problems with the lsvtec
yes they are fun but only fun the first month or so if that then something expensive happens. they always turn to crap. and anyone who says they have one or a freind has one that runs great, ask how long they have been running it ive never heard of one going problem free for more than 6 months. if so your lucky and its only a matter of time.

ANONYMOUSdeecee

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by o0Jash0o &raquo;</TD></TR><TR><TD CLASS="quote">

because the build just wasnt ment to be, you rarely hear of lsvtec engines lasting more than 10k
same goes for the sohc mini me.</TD></TR></TABLE>

true for the most part but have if build one rite n u baby-it(drive every where but never punch jus kinda cruise) for bout 3 month....it should be good....

the best way to go is gettin a expert build ot for u......

like jerrybuilt....he build some pretty good ls/vtec that run good, dont burn oil, and are daily driven.....its also jus a matter of maintaining it good n not cheap out on it

Joey Tribianni

I would like to say go with Ls/Vtec if you are wanting to turbo. The Ls/Vtec is called a "Poor Man's Type-R" motor. Adding the B18 bottom to the B16 head is stroking your motor as the head clearance is giving you a longer stroke thus producing more bottom end power much needed for the pesky lag with bigger turbo's. If you use the B16 head take some ITR cams with you as you'll get quite a power spike with them vs the stock B16 cams. Alot of the full race REX's go with Ls/Vtec setups cause they get the stroker setup and punch it out to 2.0L to wake up their GT42R's. if you want big horsepower without having to run as much boost go with a Ls/Vtec

a B18C will require more boost to achieve the same Horsepower as a Ls/Vtec

running N/A i can tell you that the B18C will win over the Lsvtec if you dont push the Ls past 6800. the vtec will engage at 4800 but wont really produce much untill around 6500-7000 and makes most of its power at 7900. you wont be more than a car length behind the B18C1 though.


Take the Ls/Vtec route if you want big power with less effort

doood

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Joey Tribianni &raquo;</TD></TR><TR><TD CLASS="quote">I would like to say go with Ls/Vtec if you are wanting to turbo. The Ls/Vtec is called a "Poor Man's Type-R" motor. Adding the B18 bottom to the B16 head is stroking your motor as the head clearance is giving you a longer stroke thus producing more bottom end power much needed for the pesky lag with bigger turbo's. </TD></TR></TABLE>

what? everything you just said here is wrong.