97 ls block
97 ls crank
99 jdm itr rods
99 jdm itr pistons
99 jdm itr head
99 jdm itr tranny
arp head studs

how can i determine my compression ratio with this setup any reconmadations?

is this a good setup?

what else shoud i do ?

 

Here's a calculator you can use:

http://www.zealautowerks.com/bseries.html

According to that caculator, you'd have a 13.7:1 compression ratio, unless I chose the wrong options.

 

itr rods with a ls crank?

i thought they were different lengths, center to center.

13.7:1 means the piston is probably coming out of the bore.

ls rods and crank with those pistons should only have the ~11:1 compression, like the itr. just with a slightly larger displacement 1797 vs 18XX cc's.

 

I dont think that using a ITR rod/LS Crank combo would effectively utilize the stroke you are looking for. Use the LS Rods/Crank and your good to go.

 

Ls rods crank and the type r pistons? I think the ls rods are longer then the type r ROD.

 

So i can use the ls crank and ls rods with the itr pistons?

 

correct

slap on a b16 head with type-r cams and you have a poor-man's type r

 

i have a 99 itr head. i did the calculator thing and it said the comp ratio is gonna be 12.58:1

 

bump

before i put the head on i wanna make sure im okay with my setup.

ls block
ls crank
ls rods
itr pistons
oem itr headgasket
itr head

c/r should be 12.5:1 im good to go right? anyother sugestions?

 

bump

 

bump

 

ttt

 

don't forget a itr oil pump

 

gsr oil pump the same as itr?

 

ttt

 

 

96+ ls/gsr/itr oil pumps are the same. dont forget gsr/itr water pump too. your build looks good.

 

okay got it gonna go buy a gsr water pump now.

 

if i tap the itr head for ls vtec will i be able to use it later on on my itr block thats getting built? its a 99 itr block with a 2.0 bore brand new itr crank brand new itr rods and im looking for some high c/p 84mm pistons for it...

will i have to untap the head????? where can i get some good 84mm high c/p pistons? want to keep the compression the same as jdm itr i think its 11.0:1..

 

ttt

 

yup

yes you could use it later.. just plug the hole you tap on the back of the head.

pistons... cp, wiseco, je, etc.... pick your poison

 

Your LS VTEC setup looks good with the LS rods/crank. The head, if you tap it and plug it you should be fine for future use back on the ITR block.

As for your 2.0 ITR 84mm pistons, any of those manufacturers above should have a high compression slug for you.

CP lists:
SC7117 84mm bore 11.5CR with B16A head
SC7120 84mm bore 12.5CR with B16A head

All these specs are with 89mm stroke.

http://www.cppistons.com/LinkClick.a...Mo%3d&tabid=64

 

looks good maybe look into a set of cams or even a little head work also.

 

i have the jdm itr head wich is ported and polished from the factory right? and dual valve springs. im thinking about gettin the crower stage 3 cams for the itr head. but the cams require the dual valve springs but i have the stock valve springs in the head wich is already dual valve springs will they be able to hold the crower cams without having valve bounce?

 

can i use my itr stock head bolts? someone told me i cant. they said i need to get the arp head studs? juss want to confirm this