what crank would you use?everything this else is built

 

bump

 

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

a gsr crank.. but that wouldn't reall make it an ls/vtec now would it?

 

Wouldnt the stock ls crank rev just fine with a good balancing??? Rod bolts, rods, are a huge factor as well.

 

eagle rods?ya i know but can the ls go to 9500?what happens when it gets balances?

 

If you are running LS rods you are living on borrowed time.

 

im not running ls rods!

what you mean by borrowed time?

 

he means the block won't last long. which is not necessarily true. the arp rod bolts are meant to help out for higher revving motors.

 

why u wanna rev to 9.5, what cams u gonna use?

 

jun 3 or toda

 

if you really are going to rev that damn high, plz get an itr or gsr oil pump to provide oil to the bearings so that they don't prematurely turn into barf like mine did.

 

ya i will does it matter which one itr or gsr?also running 14.5:1 over 105 octance can you use msd or will it go BOOM! ?

 

u can use which ever crank u prefer, since it seems as if you are going all out u should balance the whole rotating assembly

and what are u going to use MSD to do , Ignition?

go with a good Engine management, u cant cheap out when it comes to engine management

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tegasaurus &raquo;</TD></TR><TR><TD CLASS="quote">if you really are going to rev that damn high, plz get an itr or gsr oil pump to provide oil to the bearings so that they don't prematurely turn into barf like mine did.

</TD></TR></TABLE>

true, no point in turning something vtec if you're not going to add vtec parts.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by alloutmotor &raquo;</TD></TR><TR><TD CLASS="quote">u can use which ever crank u prefer, since it seems as if you are going all out u should balance the whole rotating assembly

and what are u going to use MSD to do , Ignition?

go with a good Engine management, u cant cheap out when it comes to engine management</TD></TR></TABLE>

ya msd ignition , what a good engine management system if i switch the crank there no point calling it ls vtec but it still will work like one rite?


whats an good air fuel ratio guage?

 

I dont want to start a huge RS argument, although you should know.

Rod stroke ratio is a large factor when determining rev limit.
Lower RS motors make more power lower (stroker motors).
Higher RS motors make more power up high for the most part (de-stroked motors)

If you rev the crap out of a Lower RS motor and plan on having long term use out of it you may want to think twice.

An ideal RS is 1.7~
The LS is 1.54
The GSR is 1.58

I AM NOT SAYING LS HAS BAD RS RATIO. Im saying you may want to think twice about revving near 10k. And thats based on wheather you can even make power that high on an LS crank and still be streetable (have good low end power too).

Just fyi.

-sander

 

how can you make RS higher?

 

getting gsr crank.

But thats alot of work for not much gain. Just set your motor to take advantage of the lower RS and enjoy the power a bit lower.

If you want to rev to 9500 all day long get a b16 (in a street car).

Race car is diffrent.

-sander

 

not much again but still there is some


the power lower what can i do to give me some power higer? wont elebroke im help me out

 

that's a lot of compression for just Jun IIIs

 

so youre saying todas then?

someone said on here jun 3 are fine what about jun 4 ,drag?

 

RS ratio isnt the most important factor when determining longevity of an LS vtec. Piston speed is. Take a look at this. Both figures are in feet per minute at 9500rpm. This is the TRUE reason LS/Vtec isnt as reliable. The bearings are just getting ******* POUNDED at righ rpms. Thats why they spin. Not because of shitty oiling problems caused by the oil line to the back of the head, or any other stupid excuses. (besides oil pump, but an oil pump shattering on ANY motor would be deadly to your bearings.) Hope ive helped out a little.

B16=4779.45 fpm
LS=5495.75 fpm

 

ok jeez then how did back years ago did eugene rev to 9500?and not this is not the reason why im doing my ls vtec


theirs no way to keep a bearing from spinning besides not reving so high

 

*sigh*

first of all, whose eugene?
second of all, you cant argue with physics.
third of all, you can spin a bearing at any RPM, its just easier up high.

 

eugene from mtv true life