This is My Friends Integra,...He Has it Running @ 7 psi Right Now ,He wanted me to Ask you HT Memebers How Much Boost Can a LS/Vtec Turbo Take with Stock Internals ( Ls Pistions,Rods )??


Please hit Me Up!
Wat You Guys Think???

 

vvrrroooommm Pshhhhh BUMP!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1SickHb &raquo;</TD></TR><TR><TD CLASS="quote">vvrrroooommm Pshhhhh BUMP!</TD></TR></TABLE>
lol,
Wish I knew, Bump

 

completly off topic, i know but....

does ur friend know he's missin one of those 50 nuts on his strut bar? drivers side, furthest back....

damn i feel like Monk...OCD kickin in....

 

8 psi

 

i wouldn't boost more than 7-8 just play it safe

 

it would depend on the redline. if it had a redline of 8200-8400 rpm then it should hit peak boost at 4400-4900 at7-8 psi and taper down to 5 psi from 7200 on.

the longer rod ratio of the ls block isn't good. and with turbo ls/vtec you are looking at even worse.

 

I would not recomend it but I had a buddy run 14psi for a few months, It was quite rich which probably the only thing that was saving it. It eventually cracked all of the ring landings in # 2 and 3 . For an everyday car I would stay with 10 psi or less.

 

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1SickHb &raquo;</TD></TR><TR><TD CLASS="quote">This is My Friends Integra,...He Has it Running @ 7 psi Right Now ,He wanted me to Ask you HT Memebers How Much Boost Can a LS/Vtec Turbo Take with Stock Internals ( Ls Pistions,Rods )??


Please hit Me Up!
Wat You Guys Think???




</TD></TR></TABLE>where can i get one of those filter things on the valve cover...oh yea and i would say 8-9 psi will do the job fine!!! good luck to ur friend!

 

for the little filter on the vavle cover,autozone sells them for like ten bucks !! its pretty exspensive!

 

thanks for all the info guys!

 

9-10psi and dont rev pass 8k

 

i suggest no more than 10 psi.. just make sure its tune right... and dont over rev it..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by iROCKtheSOHC &raquo;</TD></TR><TR><TD CLASS="quote">i wouldn't boost more than 7-8 just play it safe</TD></TR></TABLE> my buddy is running 15 psi w/ no problems... all he has for preventatives is a block gaurd. Motor runs strong and hasnt had a problem yet.

 

if it were me I would just spend some cash and get that tuned and then go from there.... that motor wont last long though... :/

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DC2 BoZz &raquo;</TD></TR><TR><TD CLASS="quote">where can i get one of those filter things on the valve cover...oh yea and i would say 8-9 psi will do the job fine!!! good luck to ur friend! </TD></TR></TABLE>

autozone

 

i think that little thing on the valve cover is called a breather?

 

well the rpms that those motors run at, id say that 250 h.p. would still be less load on your internals than 8000 rpms. So the rpms are what would cause problems not the combustion pressure*.( Many people have gotten ~300 whp on stock internals. If there is no detonation the piston rings will probably blow before anything major happens. *Read this info from Maximum Boost (its a turbo bible like book )

 

you might now want to just throw a 'breather filter' on.. usually on boosted motors people run a hose to a catch can... because its part of the PCV system...

 

i heard that on the LS motor the seals leak...tru or not tru?? i wanna do a project motor for my 92 hatch...LMk plz..oh and thanks on where i can get a "filter thingy" lol...ROCK ON!!!!! and for this guy cant u get like a VAFC, AEM programmable EMS, FPR, and all that good **** to help the tuning???

 

stick with what ever amount of boost you are running now.... cuz it looks like your cam seals are leaking like a ************....besides i dont think you want ur engine to blow right?

if i was you, id play it safe... becuase if its your daily driver the last thing you want happening is blowing up your motor

 

People still are not realizeing its not really about the amount of boost you are running. Its more so the amount of horsepower a motor can take. Boost pressure is relative to the turbo you have. eg. a motor with say a presicion sc50 running 10 lbs may yield 275 whp and be able to handle it but put an sc 61 on the same motor running 10 lbs and you might make 345 whp and it blow the ringslands or drop a valve or anything. Point being think bout horsepower not boost lever. l

With that in mind I think more than anything concentration should be directed toward the block since I would say that is the more critical part of an LS/vtec set up. As said before LS don't like to be reved too high, even with ARP rod bolts I wouldn't rev over 8k which I am sure is plenty.

A Stock LS has been known to hold 300 all day long and many people are now going higher than that on daily drivin cars.

I would tell you to tell you friend to dyno his car and find out what amount of horsepower he is making at what boost level and stop when he reached around the 300 mark, this is assuming this is a strong motor with good compression, etc.

Hope this helps! Just my .02...

 

[QUOTE=J-Brooks]People still are not realizeing its not really about the amount of boost you are running. Its more so the amount of horsepower a motor can take. Boost pressure is relative to the turbo you have. eg. a motor with say a presicion sc50 running 10 lbs may yield 275 whp and be able to handle it but put an sc 61 on the same motor running 10 lbs and you might make 345 whp and it blow the ringslands or drop a valve or anything. Point being think bout horsepower not boost lever.QUOTE]


that actually makes sense, i never thought of it that way.....

 

yup, when people start relying on raw number and not a boost level they will probably stop blowing up a motor, and then saying "well so and so said I could run this many lbs of boost" when so and so has an itty bitty turbo and you have a big one.