ok..before it's said, i've searched around for setups similar to mine, and i've heard from many people that it's not safe to take and LS-Vtec above 8K RPM's on a stock bottom-end, i'm building a motor, and just wanted to get a few opinions and see if it's not a waste of money in a vain attempt to provide more oil consuption to the motor in high RPM's. here's the setup i'm going with, and i'm on a slight budget, and possitive suggestions or constructive critizism is appreciated

- B18B1 block
- B16 head ( 98 Si)
- B16 pistons on LS rods and LS crank
- ITR Water Pump
- ITR oil pump
- Greddy oil line
- ITR cams
- skunk2 cam gears
- B16 Tranny


- again, my goal for my LS-Vtec is to be able to safely take it above 8500 RPM's. If i have searched incorrectly and you have found a similar setup, send me a link and i appologize for the post, THANKS!

 

stock b16 redline is good until you get some forged rods
i would suggest getting ARP rod bolts tho

 

Use B16 rod bearings and Rev that bitch to 9200,once you get some cams and valve-train that can make some higher rpm power.I used jun 3's and went to 9400 in my car,no problems for two years

 

i dunno about 9200 on ls rods, even with the vtec bearings and arp bolts thats really pushing it

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sinisterprostok &raquo;</TD></TR><TR><TD CLASS="quote">Use B16 rod bearings and Rev that bitch to 9200,once you get some cams and valve-train that can make some higher rpm power.I used jun 3's and went to 9400 in my car,no problems for two years </TD></TR></TABLE>
b16 rod bearings are the same as the ls rod berings
there are 2 type of rod bearings b16/ls and gsr/itr which have the special coating on them

for your lsvtec to rev 8k+ you should

balance the whole rotating assembly ($160)
arp rod bolts ($40)
resize rods for rod bolts ($50)
re notoch the stock rods to fit gsr/itr rod bearings

and you set

this is what i did to my lsvtec

you can also get a block girdle if u want but i dident
u will need a itr/gsr oil pan windage tray oil pickup and main bolts in order to use a girdle

 

I say around 8-8.5 with that set up.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by @ries &raquo;</TD></TR><TR><TD CLASS="quote">I say around 8-8.5 with that set up.</TD></TR></TABLE>
i would say thats about right
with that set up in my car i would never take it past 8k maybe 8.5k max

 

Yeah i would just never run that setup. It would be good setup for 8,000 rpms. Could get it to make 175whp w/ some ITR cams or something. But If you plan on ever going with big cams and higher redline. I would get some probe or eagle rods and some lighter pistons. Good luck either way.

 

any more oppinions or suggestions?, thanks for the info so far

 

just out of curiosity, what would be a safe redline for a b20 b16 with 12.5:1 Endyne rollerwave compression pistons, sleeved w/ golden eagle godzilla 85mm bore, eagle rods / rod bolts, acl berings, z10 block girdle, fully p&p head w/ very aggressive cams (a little bigger than s2 stg2) titainium valve springs and retainers. w/hondata as an engine management. what would be a max rev for mine, my idea is about 9000. give me your ideas and suggestions

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by allmotorsircrx &raquo;</TD></TR><TR><TD CLASS="quote">just out of curiosity, what would be a safe redline for a b20 b16 with 12.5:1 Endyne rollerwave compression pistons, sleeved w/ golden eagle godzilla 85mm bore, eagle rods / rod bolts, acl berings, z10 block girdle, fully p&p head w/ very aggressive cams (a little bigger than s2 stg2) titainium valve springs and retainers. w/hondata as an engine management. what would be a max rev for mine, my idea is about 9000. give me your ideas and suggestions</TD></TR></TABLE>

thanks for the thread-jack!

for future reference, just make another post

 

Valve springs are key to make the head happy. Stock springs are not sufficient IMO.

Also PR4 (LS) rod bearings only aluminum bi-metal and tend to pound out in LSVTEC usage. Use PR3 rod bearings and you'll be coo!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dirtyd463 &raquo;</TD></TR><TR><TD CLASS="quote">stock b16 redline is good until you get some forged rods
i would suggest getting ARP rod bolts tho</TD></TR></TABLE>

um what about the valve springs? he is using iTR cams too.

redline is a safe guard to prevent cylinder distortion/damage from high rpm operation, and rod ratio. also for protection from high rpm operation on a valve springs ability to prevent valve float. the rod ratio of a B18A/B/C are nearly identical. so dont go past 8K or the engines peak power point. the B16's peak HP is at 7600 rpms. with stock cams, and stock compression why would you wanna rev past 7600 rpms unless you have a tall geared transmssion,and don't wanna fall below the VTEC engagement threshold point. or you dyno'd your car, and show you have more power above 8K or whatever.

 

ahhh did not see the itr cams
he will def. need some better springs

the stock LS block is good for higher rpm's than 8000 but the stock rod bolts of the LS are prone to stretching
i would reccomend upgrading to the larger arp rod bolts and getting the ls rods modified to accept the 3/8" bolts

you will then have an engine capable of reving high safely as long as you do not do any detramental jolts to the internals (running crappy gas/detonation...or nitrous) if you were to spray i would reccomend that you upgrade rods because stock honda rods, especially LS rods, are not well adept for nitrous


Modified by dirtyd463 at 12:36 AM 4/28/2004

 

thatnks guys for all the info, i've been greatly enlightened!!


-much respect!