92eg6lsvtec

ok i have an ls/vtec setup and im putting gsr rods with b16 pistons in the ls block. what will i be able to rev to without causeing damage? like daily driving compared to a few runs at the track? and i cant tell what crank i have if its ls or what??


Modified by 92eg6lsvtec at 4:00 AM 6/30/2005

neutron91

funny you can spell in your sn but not in your post... hmmm.... oh hey gotta go! my phones ringin!

eXcelonTypeR

I'd do more searching before you start getting to deep into the project. ARP rod bolts on stock rods thats about all the tech I feel like offering. Just search more on the different technical forums, this questions has been asked many times, how about listing all the mods in your setups from top to bottom and I'm sure you'll get a better answer from the board.

92eg6lsvtec

yea, my bad i edited it. i dont know why or how i did that. ok well nevermind i found that i cant use gsr rods with an ls crank. but i bought thsese gsr rods fitted to b16 pistons already, what would be the process of putting these pistons on my ls rods?

Mr. Samurai

stock b16 redline with arp studs, no reason why you'd need to go any higher

92eg6lsvtec

ok nevermind revving for now. will i be able to use the pr3 pistons that came on the gsr rods i bought. can i put them on my ls rods no problem? as in, will this work out ok,gsr head, ls block, ls crank, ls rods, b16(pr3)pistons?? and, whats the process of taking the b16a pistons off the gsr rods and putting them on my ls rods that currently have b16b pistons on them?

eXcelonTypeR

Are you trying to drop your compression?? Cuz if you do have CTR (b16b) pistons I'd stay there, that gives you close to 12.5:1 cr if im not mistaken

IHateJDM

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92eg6lsvtec &raquo;</TD></TR><TR><TD CLASS="quote">ok i have an ls/vtec setup and im putting gsr rods with b16 pistons in the ls block. what will i be able to rev to without causeing damage? </TD></TR></TABLE>

your bottom end isn't limiting your rpm's, your head is. valve springs and retainers will allow you to rev higher, and cams will allow you to actually make power up top. Without cams, there is no reason to rev over stock redline, because the car won't make any more power.

92eg6lsvtec

no i melted a hole in one of the ctr's. and my cr was around 13:3:1. so can i use this setup ok ls crank, ls rods, b16 pistons in the ls block as far as block height and everything

IHateJDM

that sounds like a tuning issue, not your bottom end.

eXcelonTypeR

As far as I know, and from talking to a tuner at the dyno near me, 12.5:1 cr is like the max you can run on pump gas in my area, 92 octane. So if you were trying to 13.3:1 on pump gas, you'd have to run that thing really rich so it wouldn't melt.

92eg6lsvtec

o, yea it melted due to pre-detonation cuz i was runing 87 octane on accident. and yea with 13:3:1 cr u cant run pump gas unless tuned real good. i was unaware tho that this motor had ctr pistons, the guy didnt tell me when i bought the car. anyways, so will those pistons work in this setup as far as height issue?

eXcelonTypeR

If i remember correctly, a shop that quoted me on a LS/vtec setup for me said LS rods and CTR pistons would get me around 12.2:1-12.5:1 cr...but that was like a couple years ago

96turboek

I wouldnt really take it past like 7500 or 8 at the most. The LS rod and main bearings arent meant to go that high. You could always do LS rods and B16 pistons.

92eg6lsvtec

i am doin ls rods and b16 pistons. o a local honda shop owner told me i was prolly around 13 so that what im goin by. im not exactly sure

Mr. Samurai

If you're worried about the pistons hitting the valves and the height of using ls crank rods, and b16 pistons, you can clay the motor and see how much clearance you have. Finding the clearnace can also help you determine the cams that you can use so you dont make any contact from going with a wild cam.