High, I'm almost done with my LS/VTEC project. Just need to buy the CTR piston replica forged. and a few other small details.

My head is B16 with mild port and polish work on it.
My block will be Full balanced, and currently has with Eagle Rods, GSR Bridge, B16 Oil Squirters, Type R Oil pump, .25 overbore.

What rev limit do you think my block can take. I haven't done anything to the head yet. Cause I'm trying to just get it in without cutting corners I'd regret. So I want to make sure my block is good to go. The guy that is balancing my stuff has a new balancing machine that I'm told can do better than nascar standards. So I'm hoping for good things. There are a few things here and there I don't feel like listing, this should be enough.


Modified by freezerburnv2 at 1:17 AM 2/8/2004

 

ls block has the worst rod ratio, so its gonna be tough for it to rev pretty high...
even with balanced crank the main bearing cap is still weak for revving (correct me if I was wrong)
dont try doing some crazy things like 10000rpm...
well, if you want you can still go that high, but higher you rev much risk you have to take, I will just say treat it as a GSR block, that would be safe.

 

I rev 9000 rpm's daily for over 30000 miles.......ls vtec ctr pistons, skunk2 s2 cams, skunk2 valvetrain, and shotpeened rods with arp bolts

 

i rev to 9000 every now and again with zero block build. the heads fully built but bottom is stock, i am in the process of building now but still i havent had problems, but i usually baby it most the time

 

ls bolck redlines at 7.5
vtec is more like 9 grand

be carefull i over reved a b20/vtec at 8300 then bye bye pulled 9 all day but i never should have ls/b20 need a vtec crank installed in them for high rpmz

 

A good friend of mine has had his lsvtec for 3 years now. He drags it every season, and spins it to 8500 everytime. No problems yet.

 

nice what valve train is he using

 

ITR valvetrain and cams. 12.5:1 compression also daily driven.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B17AGSR &raquo;</TD></TR><TR><TD CLASS="quote">I rev 9000 rpm's daily for over 30000 miles.......ls vtec ctr pistons, skunk2 s2 cams, skunk2 valvetrain, and shotpeened rods with arp bolts</TD></TR></TABLE>


same here.. all ive done to the bottom end is shotpeend the rods, new clevite bearings, arp headstuds/ rod bolts and usdm itr pistons.. stock 81mm bore still using ls oil and water pump.. i take it to 9k rpms no problems yet.. had it over a year now with 16,454 hard driven miles.. i'm also going to test how long it will last as i'm planning a round trip fl-ny with the low geared b16 tranny.. that should be a real good test for the lsvtec

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by freezerburnv2 &raquo;</TD></TR><TR><TD CLASS="quote">
My block will be Full balanced, and currently has with Eagle Rods, GSR Bridge, B16 Oil Squirters, Type R Oil pump, .25 overbore.</TD></TR></TABLE>

Sounds like your shortblock is pretty built.
I don't see a problem with reving as high as you make power, which shouldn't be more then 9000RPM at the highest.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91integraLSVTEC &raquo;</TD></TR><TR><TD CLASS="quote">same here.. all ive done to the bottom end is shotpeend the rods, new clevite bearings, arp headstuds/ rod bolts and usdm itr pistons.. stock 81mm bore still using ls oil and water pump.. i take it to 9k rpms no problems yet.. had it over a year now with 16,454 hard driven miles.. i'm also going to test how long it will last as i'm planning a round trip fl-ny with the low geared b16 tranny.. that should be a real good test for the lsvtec</TD></TR></TABLE>
that's exactly what i'm going to do to my ls block, my friend's been running his for over about a year now with no problems. he revs it to 8.5K, and has ran a 13.5 with street tires and 13.0 with 14" slicks. me in the other hand, i have had my crvtec running for the past two years. i rev it to 8K, only because my gsr cams don't make any power after 7.3K. i'll probably do some beffing up to my bottomend, and get some good cams and take it 9K

 

Hey man your in florida? I'm having a hard time finding some good all motor ls/vtec cars around. I'm on the panhandle.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by freezerburnv2 &raquo;</TD></TR><TR><TD CLASS="quote">Hey man your in florida? I'm having a hard time finding some good all motor ls/vtec cars around. I'm on the panhandle.</TD></TR></TABLE> yes i am, but i'm south of west palm beach. my friend and i will be at moros, on the 22nd for the import drag race event!

 

i had a similar set up with stock rods and bolts and i revved it t 9500 a few times a week....but remember a block only works as hard as the person who put it together.....one more thing i wasnt under the impression that you cant use eagle rods with factory type pistons (usless you modify the rod or piston, then i may be wrong)

 

I'm at almost 10,000 miles on my ls/vtec that sees hard revs EVERY time I take it out. Usually go through the gears like this 8500, 8000, 7800. I have misshifted beyond belief a few times and no problems... love it. stock rods/bolts, fully balanced, gsr rod bearings, gsr oil/water pump,itr .025 over pistons.

 

I've talked to some guys at the drag strip and they told me they might have a fix for my problem. Hope they come up with something.

 

i would rev to what ever ur ecu revs to unless ur autocrossin and ur at a constint rpm then i would baby it but if ur gonna daily drive it ull be ok takeing it 8,000 to 8,500

 

pushing an ls block to 9.5k rpms, now thats scary.. listening to my motor rev to 9k is enough to send chills down my spine

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VtecDA9 &raquo;</TD></TR><TR><TD CLASS="quote">I'm at almost 10,000 miles on my ls/vtec that sees hard revs EVERY time I take it out. Usually go through the gears like this 8500, 8000, 7800. I have misshifted beyond belief a few times and no problems... love it. stock rods/bolts, fully balanced, gsr rod bearings, gsr oil/water pump,itr .025 over pistons.</TD></TR></TABLE>how much power are you putting down with your setup?

 

Well, I would have to agree with others when they say, "Why 10k Rpms?" But anywho, I do 8000 Rpms on my Daily Driven LS/Vtec. Runs great.
I &lt;3 My :honda:

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skyripper &raquo;</TD></TR><TR><TD CLASS="quote">ls block has the worst rod ratio, so its gonna be tough for it to rev pretty high...
even with balanced crank the main bearing cap is still weak for revving (correct me if I was wrong)
dont try doing some crazy things like 10000rpm...
well, if you want you can still go that high, but higher you rev much risk you have to take, I will just say treat it as a GSR block, that would be safe.</TD></TR></TABLE>

rod stroke ratio doesnt mean much in this case
main bearing caps are strong enough

 

r/s ratio is pretty meaningless in 99% of all street motors, unless you have 600hp and wana turn 9500 rpms dont even think about the r/s ratio

rev the ho till it quits making power.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM2ndGen &raquo;</TD></TR><TR><TD CLASS="quote">how much power are you putting down with your setup?</TD></TR></TABLE>

Haven't dynoed it, but it pulls... milled b16 head, GSR cams, ITR IM, full crower vlavetrain .025 over ITR pistons and all the other lil stuff...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VtecDA9 &raquo;</TD></TR><TR><TD CLASS="quote">

Haven't dynoed it, but it pulls... milled b16 head, GSR cams, ITR IM, full crower vlavetrain .025 over ITR pistons and all the other lil stuff...</TD></TR></TABLE>sounds like a good setup ...id really like to see how much power it puts down once you hit the dyno and or get it tuned

 

I have a LSVtec with LS rods, ARP rod bolts and head studs, ITR pistons and a complete 01 ITR head and portflow valvesprings and the guy who built my motor dynoed 26 runs to 9K rpms with no problems. I normally rev it to 8500 but I know it can handle 9K. This things are pretty damn reliable if properly built.

James