bunnyrabbit

Will an LS crank work in a b18c??? Will it make a difference in power and how much??? also are LS and GSR rods the same???

thanks

Big Teggie

This topic has been covered many times.

Use the search, and you can find tons of good info

riceball777

yeah a ls crank will fit in a gsr but you will have to use the ls rods and not the gsr rods.
and by doing this you will increase displacement and power through out the entire power band

ITRswapandslow

probally the best mod you can do for a GSR, cheaply

i'm looking for an LS crank for my ITR as we speak

Wraith_G2IC

Maybe it is just too early in the morning for me but, doesn't this just make one form of an LS/VTEC?

B18C1 + B18B rods & crank = LS/VTEC (with lower RPM potential than C1) ???

Is that right?

AllMTRWH0R3

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Wraith_G2IC &raquo;</TD></TR><TR><TD CLASS="quote">Maybe it is just too early in the morning for me but, doesn't this just make one form of an LS/VTEC?

B18C1 + B18B rods & crank = LS/VTEC (with lower RPM potential than C1) ???

Is that right?</TD></TR></TABLE>

very wrong! use the crank and rods and you can still spin it to 9k you get more torque and hp and it's a cheap upgrade. this is one very old trick in the book.

b19coupe

With an LS crank your Rod/Stroke ratio will suck!
Kidding-the whole R/S ratio issue is overblown on the internet. It is a good mod that will make more torque and power. Don't know exactly how much-maybe you could do a before and after dyno and find out for us

ITRswapandslow

well, i'm working right now with Brad...trying to get all my mess together. I'll hopfully be showing the benifits of this VERY soon.

Wraith_G2IC

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by allmtrwhore2 &raquo;</TD></TR><TR><TD CLASS="quote">very wrong! use the crank and rods and you can still spin it to 9k you get more torque and hp and it's a cheap upgrade. this is one very old trick in the book. </TD></TR></TABLE>

Sorry for my early morning ignorance, but I was just thinking with the rods and crank you now have the same bore and stroke of the LS but with the higher comp pistons of the GSR. I will admit, I don't know off the top of my head of the differeces in deck height and so on between the B18B and B18C1. That is where I wasn't thinking it was much different than swaping an LS bottom end with GSR pistions under that C1 head. What is the difference?

AllMTRWH0R3

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Wraith_G2IC &raquo;</TD></TR><TR><TD CLASS="quote">

Sorry for my early morning ignorance, but I was just thinking with the rods and crank you now have the same bore and stroke of the LS but with the higher comp pistons of the GSR. I will admit, I don't know off the top of my head of the differeces in deck height and so on between the B18B and B18C1. That is where I wasn't thinking it was much different than swaping an LS bottom end with GSR pistions under that C1 head. What is the difference?</TD></TR></TABLE>

well the stroke alone gives you about .2xxxx

no problem we all learn something

92 civic VX B18c

So swapping out your GSR(B18c1) crank and rods increases your stoke but doesn't effect your engines stability @ high rpms??

jeremy.

yes

GOLDBERG

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITRswapandslow &raquo;</TD></TR><TR><TD CLASS="quote">probally the best mod you can do for a GSR, cheaply

i'm looking for an LS crank for my ITR as we speak</TD></TR></TABLE>

kool can i have your spare itr crank then??

SupaFly_Honda

also, you'll have to use the ls rod bearings and gsr main bearings

Wraith_G2IC

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by allmtrwhore2 &raquo;</TD></TR><TR><TD CLASS="quote">well the stroke alone gives you about .2xxxx

no problem we all learn something </TD></TR></TABLE>

That's cool But I have to belive there is some trade off. Just like 92 civic VX B18c asked, I have to believe you will get a good bump up in low to mid range power. And you're trading that for decreased RPM and less top end. Otherwise, wouldn't an LS be reving to 9.5k???

nitroice40

With this (getto stroker kit) is there any clearance issues with the head or oil pan?

fearless_dsm

ls and gsr have the same deck height...putting ls crank and rods into a gsr block would basically make it an ls,except it has a main girdle,you dont have to run an external line for vtec oil supply and it has oil squirters...

AllMTRWH0R3

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Wraith_G2IC &raquo;</TD></TR><TR><TD CLASS="quote">

That's cool But I have to belive there is some trade off. Just like 92 civic VX B18c asked, I have to believe you will get a good bump up in low to mid range power. And you're trading that for decreased RPM and less top end. Otherwise, wouldn't an LS be reving to 9.5k???</TD></TR></TABLE>


there is non vtec ls reving that high but they have huge idle and secondary lobes and alot of compression ( not very driveable now is it?)


well a ls does not have vtec! which is a race profile on the cam. power dies after 6k on that car (stock) I mean you do get low end drivability ( I dont care really about that) by doing this you have a ls/vtec without the oil line ( much cleaner) the top end thing is just myth ( if it is not breathing well any car and setup would have horrible top end) I mean you will see torque dies off on top but you have horsepower to get you down the track this setup is not for everyone ( only if you want to be slightly faster then your comp.)

jeremy.

so what is the best way to deal with the oil squirters? bend them or plug them?

HONDABROMANDUDE

I would say just plug them, the benefit from the squirters is minimal and plus you'll gain a little extra oil pressure throughout the rest of the engine if you plug them.

AllMTRWH0R3

take them out and weld them shut...............and you do get some more oil pressure

jeremy.

seems tempting for my next block.....

Kataku2K3

Personally I would just stick with the B18C crank (the gains aren't all that special with the B18A/B B20B/Z 89mm crank)... At standard bore you'll gain about 40cc's... As for the oil squirters, I would plug them too... Just my $0.02 tho

PliggityPB

OK, what about if I were to put a GSR crank in my B18A?? What would be the results with that setup? I have an LS block w/no crank, but I have a GSR crank just chillin like a villain in my storage. TIA, Pat.

Kataku2K3

Yea, you can do that and it's actually what we probably do more commonly when a motor doesn't come with a crank... Just get GSR length rods and you'll basically have a B18C, lacking the internal VTEC oil feed, oil squirters, and girdle... Oil/water pumps can easily be changed...