Hye guys im bossting my Ls i have about 72,000 miles on it...i have invested in 8:5:1 forged pistons...and turbo rods....i also will have a stage 3 clutch.....wat im wondering is do u think stock cams and cam gears shopuld be ok...should i gte aftermarket cams and cam gears or should i not bother with those....alot of people sais i should be fine with the stock cams and cam gears as long as i have pistons and rods...I should be hitting about 300WHp...so i need some input....if it worth gettign cams and cam gears......thnaks guys

 

I'd put the money toward a quality manifold rather than cams.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kendall &raquo;</TD></TR><TR><TD CLASS="quote">I'd put the money toward a quality manifold rather than cams.</TD></TR></TABLE>

I agree. Quality manifold, or quality tuning/management.

With those, you can free up gobs of power whereas some good turbo cams don't do as much.

 

might i ask why you decided to drop the compression?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by projectTeG &raquo;</TD></TR><TR><TD CLASS="quote">might i ask why you decided to drop the compression?</TD></TR></TABLE>

I would like to know that as well... 8.5:1 seems pretty low...

 

i havent decided yet wat compression to do??? people tell me 8:5:1 otheres say 9:1 ims itll wondering what do you guys think for my Ls??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by killablaze &raquo;</TD></TR><TR><TD CLASS="quote">i havent decided yet wat compression to do??? people tell me 8:5:1 otheres say 9:1 ims itll wondering what do you guys think for my Ls??</TD></TR></TABLE>

id say if anything keep it close to the stock compression.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by killablaze &raquo;</TD></TR><TR><TD CLASS="quote">i havent decided yet wat compression to do??? people tell me 8:5:1 otheres say 9:1 ims itll wondering what do you guys think for my Ls??</TD></TR></TABLE>

Well, if you're only aiming for 300whp, you don't really even need aftermarket pistons/rods. Compression at the stock 9.2:1 is also fine.

If you have a good tune, you can get up to 300+whp on your stock motor pretty easily.

 

so the compression ratio fo the stock Ls should be good to handle the 300 whp.....isnt the compression to high of the LS ....please let me know wat would a good compression be or should i just keep stock compression...im afraid if i keep the stock comprerssion....i might blow the motor ifi beat on it.....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by killablaze &raquo;</TD></TR><TR><TD CLASS="quote">so the compression ratio fo the stock Ls should be good to handle the 300 whp.....isnt the compression to high of the LS ....please let me know wat would a good compression be or should i just keep stock compression...im afraid if i keep the stock comprerssion....i might blow the motor ifi beat on it.....</TD></TR></TABLE>

the ls's compression stock is low compared to alot of the other honda engines.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by killablaze &raquo;</TD></TR><TR><TD CLASS="quote">so the compression ratio fo the stock Ls should be good to handle the 300 whp.....isnt the compression to high of the LS ....please let me know wat would a good compression be or should i just keep stock compression...im afraid if i keep the stock comprerssion....i might blow the motor ifi beat on it.....</TD></TR></TABLE>

It's definitely low enough for 300whp. Remember not to buy into the myth that low compression is the best for turbo. High compression and high boost is technically the best combination. It is the difficulty of tuning, and having to run higher octane gasoline that makes it hard to run daily.

A good tune is the key. A bad tune, and you could run 2:1 compression with 2psi of boost and you'd still blow your motor. A good tune and a 10:1 compression with 10psi and you'll have a powerful reliable car.

 

aside from the fact that a car w/ compression ratio of 2:1 isn't going to run, at least not without some SERIOUS tuning and custom parts like cams.

but anyways. in direct response to the original question, turbo cams are nice, but won't gain nearly the power of a good manifold or spending more on tuning. it's something to do once you've got a great manifold and you're already investing in top notch tuning. all in all the LS cams don't fall off THAT badly up high. ah, what the hell. they really do. that's why i don't use them any more. but you won't really notice it if you get a properly-sized turbo.

 

oo i know.....but iv asked aorudn and people said on my sotck motor i cna proboly put out baout 8-10 psi with stock internals....and thta would see about 250-maybe hittign 300 the people said.....so they told me to mayeb go lower pisotns with rods then i can boost more....but thats why im asking around ont he forum to see what people say...so you think all stock internals on the Ls head would be good for 300.....i mena i ahve seen a stock GSr motor have 300 whp easy iv never seen stock LS motor...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by killablaze &raquo;</TD></TR><TR><TD CLASS="quote">oo i know.....but iv asked aorudn and people said on my sotck motor i cna proboly put out baout 8-10 psi with stock internals....and thta would see about 250-maybe hittign 300 the people said.....so they told me to mayeb go lower pisotns with rods then i can boost more....but thats why im asking around ont he forum to see what people say...so you think all stock internals on the Ls head would be good for 300.....i mena i ahve seen a stock GSr motor have 300 whp easy iv never seen stock LS motor...</TD></TR></TABLE>

yes you can get 300 whp with the ls engine and as for that psi stuff....10 psi on one turbo is different from another.

 

i agree with the quality manifolds

 

Umm... Im about to buy me a ramhorn manifold.. Cost 6 bills.. Worth every penny.. Im pushing about 8 psi, all stock... pushin out 250.. Wait till i throw on some ramhorn.. That **** gonna spool like a beast.. Im aimin for 300 hp..

 

ye si know baout the manifolds...I have a equal length manifold from full-race...but iv asked stores around and ppl they say that the LS motor tops will be able to push 250-280 tops...thats with about 8-10 psi plus i only have a T3 turbo good for 300whp...so wat im asking is that will a stock LS with stock internals other than computer be bale to hold 300 whp..???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by killablaze &raquo;</TD></TR><TR><TD CLASS="quote">so wat im asking is that will a stock LS with stock internals other than computer be bale to hold 300 whp..???</TD></TR></TABLE>

It's been done before.

 

It has been done before...WITH GOOD TUNEING. I honestly would not recomend running around at 250+HP on a stock bottom end. Alot of people have dont it, and alot of people have done it for alot of miles. But i would deffinatly invest in some pistons and rods for security. and with the stronger bottom end and good tuning you can go beyond 300hp. Even throw in ARP head bolts. The 9.2:1 on the LS is a good compression. If you buy aftermaarket pistons i would stick with around the 9:1 mark.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by scottishdave &raquo;</TD></TR><TR><TD CLASS="quote">It has been done before...WITH GOOD TUNEING. I honestly would not recomend running around at 250+HP on a stock bottom end. Alot of people have dont it, and alot of people have done it for alot of miles.</TD></TR></TABLE>
wrong. several people on h-t have BONE STOCK LS engines, possibly with the addition of a stronger head gasket, making over 300whp turbocharged, and have been doing it for 2-3 years. they key here is good tuning. most of them have either standalone engine management or Hondata or Crome/UberData/other DIY ECU tuning, and all of them spent lots of time and money on tuning it right. when it comes to boost, LS = GSR. [stock] VTEC is not an advantage with boost. maybe if you had a totally custom grind VTEC would be useful and see great gains, but not with any cams on the market that come to mind. 300whp is totally reliable if you HAVE IT TUNED RIGHT.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95lstegman &raquo;</TD></TR><TR><TD CLASS="quote">300whp is totally reliable if you HAVE IT TUNED RIGHT.</TD></TR></TABLE>

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for what your talking about, i wouldn't go any lower than 9.1.
whats going to happen is your going to have very little power outside of boost.