anyone know what the red-line for stage 2 crower cam for a 95 ls is?

 

are those the 403s?
Regardless of what cams you got, your ECU dictates your rev limiter. If it's still stock, then you can rev to 7000.
If your bottom end is still stock i wouldn't recommend revving past that either. the stock rods and rod bolts of the LS bottom end aren't made to go above 7000, and the bottom end isn't balanced as much as the VTEC bottom ends.

 

when you put those cams in did you feel a diff?big or small..

thanks

 

yea im wondering the smae thing...someone said something about crower 404's...good power?

 

buy rods you mean conection rods ?

 

keep the same rev limit 6800

: unless the block it built
: and the head is built, to hold the power in the higher rpm's

 

the whole reason im asking is because i bought the cams ,and im getting the valve springs ,and retainers, and valves, pistons, conecction rods(if money allows) and i quess rod bolt? im also getting the head ported

 

62403-2
Stage 2 - Street/Strip package.
Most popular "all motor" profile.
Requires #84162 kit. 1000 to 8000+ rpm (15-18 hp).

 

get another ecu and rev to 8200 (or whatever the ECU dictates).

the bottom end IS meant to rev that high (a la LS vtec's with stock LS bottom ends. hello?)

keep your oil changed, and keep good synthetic oil in. i use lucas too, which coats your top end parts better (aka springs, retainers, cams, etc)...

the real concern when revving b18s past 9000+++ is floating valves. happens consistently. bottom end problems are minimal from revving. it'll provide you the HP you give it. get a BLOX intake manifold, raise the fuel pressure a few points ($40 adjustable fpr?), and rev happy.

i sure wish I could get a better ecu and go way past 7k. can't win 'em all.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdmb20a &raquo;</TD></TR><TR><TD CLASS="quote">get another ecu and rev to 8200 (or whatever the ECU dictates).

the bottom end IS meant to rev that high (a la LS vtec's with stock LS bottom ends. hello?)

keep your oil changed, and keep good synthetic oil in. i use lucas too, which coats your top end parts better (aka springs, retainers, cams, etc)...

the real concern when revving b18s past 9000+++ is floating valves. happens consistently. bottom end problems are minimal from revving. it'll provide you the HP you give it. get a BLOX intake manifold, raise the fuel pressure a few points ($40 adjustable fpr?), and rev happy.

i sure wish I could get a better ecu and go way past 7k. can't win 'em all.</TD></TR></TABLE>

Worst advice ever. The rod bolts on the LS are not meant to see revs that high. They will stretch and cause a spun bearing at best and a thrown rod at worst. It can be done, but I would not recommend it if you give half a **** about reliability.

And, BTW, Lucas is crap. Read this article and you will never use that **** again: http://www.bobistheoilguy.com/...s.htm

 

how many ls/vtec's have you put together? few stock rod bolts are meant to see revs that high. 9000+ motors don't last very long unless they're built to begin with. I thought that was implied, but I'll clarify next time.

don't feel like you're over-revving at 8000. that's my advice. no ECU replacement that petergriffen is going to look at in the near-future will go far beyond that. the rod bolts on the LS are fine for 8000. if you're saying they're not, then I owe a lot of people apologize for the LS/vtec's that are... oh wait... they all do fine.

 

I am saying they are not. It is people like you that throw a half-assed ls-vtec together, rev it out to 8k plus, and have it take a **** on them that gives the ls-vtec a bad name.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdmb20a &raquo;</TD></TR><TR><TD CLASS="quote">get another ecu and rev to 8200 (or whatever the ECU dictates).

the bottom end IS meant to rev that high (a la LS vtec's with stock LS bottom ends. hello?)

keep your oil changed, and keep good synthetic oil in. i use lucas too, which coats your top end parts better (aka springs, retainers, cams, etc)...

the real concern when revving b18s past 9000+++ is floating valves. happens consistently. bottom end problems are minimal from revving. it'll provide you the HP you give it. get a BLOX intake manifold, raise the fuel pressure a few points ($40 adjustable fpr?), and rev happy.

i sure wish I could get a better ecu and go way past 7k. can't win 'em all.</TD></TR></TABLE>

Do you understand what rod stroke ratio is??? the LS motors stroke is to long to to rev that high safely. With increased revs comes increased stress on ALL components like rod bolts,rods, pistons, cylinder walls ect. The stock bottom ends on LS are not balanced for that kind of RPM usage. LS/VTEC that lasts dont have stock bottom ends, they use forged rods or atleast stock rods with ARP bolts, they are ballanced and use GSR bearings that are designed to rotate at those speeds. If you take a look at the dyno graph on crowers site even with the 403's the motor falls on its face after 7000 rpms. Hell even the mighty 404's peak at 7000 meaning that reving higher will only bring a little more power on a mildly built motor. If the internals are different then the results will vary. The non-vtec heads just dont flow enough air for that kind of RPM band.

 

bad ratios do put more stress on components. my ratio is even more terrible (&gt;1.49). ls/vtec's are usually done (those whose I know of anyway) on an economic basis. a very inexpensive ls bottom end can make a nice mate with an easy-to-find vtec head. i guess I owe an apology to anyone whose ls/vtec didn't last very long revving to 8000. it's beyond me why they don't all do b20/vtecs anyway, but that's another story.

likewise, if you all don't find ls/vtec revving success, I suppose the advice should be heeded to make sure you've got good rod bolts, bearings, or whatever else etc... maybe I just haven't heard the horror stories that I need to hear yet. i'll refrain from advising about anything related to them..

i think, important to note as dd and ds are saying, the crower cam alone won't help you rev past 7000 for any reason (aka make any power there)... by the time you've had the rest of the headwork that makes going way past 7000 worthwile, you've done a whole lot more than buy some cams. the cams will be effective 8000+ (they're telling you) so long as the rest of the motor is fit to rev and make power there. the VTEC head's job is to do just that (assuming the top end is your reason for stopping at 7k).

 

you - idiot.. shmoo gave good advice no more then 7k on a stock bottem end..or else you'll be putting curtains on your new window in your block period.

 

wheres a good place to buy rods , and arp rod bolts, pistons . so i don't have the stock bottom end .