hey guys i've been doing some research and i was wondering if anyone can answer this simple question of mine. I have a gsr swap in my car but i spung a bearing. I'm planning to throw a ls crank with pr3 pistons in it. So does this mean i have a ls vtec then? OR do i just have a gsr with a little more power?? Let me know alright guys...
thanks

 

haha.

yes, same thing as an lsvtec.

 

yea basically only a little safer because of the girdle add arp rod bolts to the ls rods and have the crank balanced

 

ls/vtec the right way...you got oil squarters and no ghetto oil lines

 

i run this set up on my daily driver and love it

 

Remember to use LS length rods or your precious p30's are gonna make out with the head.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hayabusa160 &raquo;</TD></TR><TR><TD CLASS="quote">i run this set up on my daily driver and love it </TD></TR></TABLE>

That 2 ft-lbs of torque does feel great SOTP, doesn't it?

 

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

That 2 ft-lbs of torque does feel great SOTP, doesn't it?</TD></TR></TABLE>

Its not only that but it brings peak tq down in the rpm range which is great for a street engine.

 

actually i make 140 foot pounds of torque and 200whp. but yea it feels great.
at 5000rpm i'll make more torque then a stock gsr at redline...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hayabusa160 &raquo;</TD></TR><TR><TD CLASS="quote">actually i make 140 foot pounds of torque and 200whp. but yea it feels great.
at 5000rpm i'll make more torque then a stock gsr at redline...
</TD></TR></TABLE>

And of course, none of that has to do with the higher compression, bigger cams, intake, or header. It's all in the 0.07 inch of stroke you got out of that bad boy LS crank

My point was on a street car you arn't going to notice the difference while driving other than in your head. A 95mm stroke, sure. 92mm you can feel a little difference, but you can't notice GSR to LS. If you have a GSR block and crank it isn't worth ditching your oil squirters just to run an LS crank.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by envision2teg &raquo;</TD></TR><TR><TD CLASS="quote">haha.

yes, same thing as an lsvtec.</TD></TR></TABLE>


no it is not....

you will have oil squirters and possibly an oil cooler.....by using a gsr block...

 

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


no it is not....

you will have oil squirters and possibly an oil cooler.....by using a gsr block...</TD></TR></TABLE>

do you feel smart now that you pointed that out?

i answered the question he asked, you guys are just picking it apart now. its assumed that he know what a stock gsr has and just wanted to know if a gsr with an ls crank and rods would perform in the same way as an ls block with respect to the rod and stroke ratio.

and to blu3g:

in my first response, i wasnt laughing at you, for some reason the way you stated the question just made me chuckle.

 

i agree with all you guys but i just want to make sure you know? I don't want to go through the hassel with drilling holes and building up a ls v tec the wrong way when i can just run an ls crank with ls rod in my gsr block. By doing this i guess it'll be safer too. We'll thanks for the input guys but if you guys have any tips that will help me out with this then please feel free to pm me or else leave a messege on here.

thanks

 

if your gsr crank is junk cause it spun a bearing and all you have is an ls....then go with the ls or the ls is cheaper....go with it...just remember the LS rods!!!!

 

yea ls crank+ls rod+ what kind of pistons? I heard pr3 is prefered but what about jdm ctr pistons??? Will they be okay or will they give out too much compression?

 

ctr will give you some pretty high compression p30 works good too.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hayabusa160 &raquo;</TD></TR><TR><TD CLASS="quote">ctr will give you some pretty high compression p30 works good too. </TD></TR></TABLE>

yea, CTR's are pretty poorly designed, and would yeild around 13:1 cr. i would run p30's or pr3's, in fact i am

 

sorry for asking the same question that has been answered over and over again but im the type of person that likes to make sure that i am getting the correct information before starting on a project. So please bare with me guys . Again i know you have to shot pin(wrong spelling) the Rods. By doing this i heard some people say you take some metal off the rods where it connects to the crank and some people say you take some metal off the part where it connects to the piston so you can fit the pistons. Which is it?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by envision2teg &raquo;</TD></TR><TR><TD CLASS="quote">

yea, CTR's are pretty poorly designed, and </TD></TR></TABLE>


where do you get your INFO from??? that is a pretty assine thing to say

the ctr piston is a great design

look at any aftermarket piston and you will see it is very similar to the CTR pct piston!!!!!!!

where do you think aftermarket companies got their designs from...

to idiots

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blu3g &raquo;</TD></TR><TR><TD CLASS="quote">sorry for asking the same question that has been answered over and over again but im the type of person that likes to make sure that i am getting the correct information before starting on a project. So please bare with me guys . Again i know you have to shot pin(wrong spelling) the Rods. By doing this i heard some people say you take some metal off the rods where it connects to the crank and some people say you take some metal off the part where it connects to the piston so you can fit the pistons. Which is it?</TD></TR></TABLE>


rods do NOT need to be shot peen'd....

arp rod bolts would be a good idea!


you must take a total of about 2 mm off the PISTON END of the rod....

i would get the LS rod notched for gsr bearings....this will increase oil pressure since LS rods have oil squirters in them.....

 

rods do NOT need to be shot peen'd.... you must take a total of about 2 mm off the PISTON END of the rod....
(THANK YOU VERY MUCH)

arp rod bolts would be a good idea!
will this let me rev higher???


i would get the LS rod notched for gsr bearings....this will increase oil pressure since LS rods have oil squirters in them.....
please explain this one i dont really get what you mean by notched for gsr bearing?

thanks

 

Running the smaller GSR bearings in the LS blocks has been proven to have some problems from what ive seen. You have a smaller area of bearing taking a greater pounding.

 

for sure, i would stick to the ls rod, main and thrust bearings

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chad &raquo;</TD></TR><TR><TD CLASS="quote">
i would get the LS rod notched for gsr bearings....this will increase oil pressure since LS rods have oil squirters in them.....</TD></TR></TABLE>

 

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


where do you get your INFO from??? that is a pretty assine thing to say

the ctr piston is a great design

look at any aftermarket piston and you will see it is very similar to the CTR pct piston!!!!!!!

where do you think aftermarket companies got their designs from...

to idiots</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by omniman &raquo;</TD></TR><TR><TD CLASS="quote">the ctr piston would be way too high for pump gas in the gsr engine. plus the ctr piston will hit the head (gsr head). the ctr pistons weigh about 20 grams more than the 11:1 tr pistons. basically if you dont like money and you like to do things twice get the ctr's, other wise get the type-r's.
</TD></TR></TABLE>

i guess you are better informed than omniman.....

the problem is the deck height and the sharp edges. once people buy the aftermarket pistons you speak of they often have the edges smoothed out. the reason is they can create hot spots and cause detonation. but it is fine, believe what you want.

in no way am i saying the ctr is horribly designed, but the p30, pr3, and itr's are much better.