ls crank or gsr crank
02-15-2009, 09:22 AM
#1
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ls crank or gsr crank
ok well im rebuilding a gsr b18c1
i want to put the ls crank and rods for longer stroke
but some people tell me to keep the gsr crank
if i get the ls crank i will get it balanced with arp rod bolts
it will be like a oem ls-vtec
just let me know wat u guys think
i want to put the ls crank and rods for longer stroke
but some people tell me to keep the gsr crank
if i get the ls crank i will get it balanced with arp rod bolts
it will be like a oem ls-vtec
just let me know wat u guys think
02-15-2009, 06:46 PM
#4
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Re: ls crank or gsr crank
I believe that you produce more torque with the LS crank because of the longer stroke, most LS-vtec all motor setups have LS cranks in them i mean that i have seen..
02-15-2009, 07:04 PM
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02-16-2009, 07:57 AM
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Re: ls crank or gsr crank
read this:
^from here: https://honda-tech.com/forums/showth...light=crank+ls
first three lines aren't exactly relevant but you get the point if you read the thread that it was quoted from.
in my opinion
If you already have a ls crank,rods and a gsr block available then yes going with the b18c1 block is better,
since it was built with the intension to rev high and since it has the girdle,oil cooler(older models),better oil supply,the b18c1 stamp(you can sell the car for more with a gsr swap then a lsv swap),since it requires no drilling ,no taping the head and no lsv kit!
but If I had a gsr swap I would never ever do this,I dont see why and how this lsv thing has gotten so far it actually doesnt make too much sense!
MOST IMPORTANTLY:
you are doing a whole lot of machining,building,swaping and buying for what 37cc's ?that is 2% of a gain, its a number you can probably get by just upgrading your plugs!
My guess is that when people do ls vtecs there ride feels stronger cause
1)they had a b16 1600cc vs 1834 (that you can feel)
2)they had a ls non vtec 142hp vs alot more (you will feel)
3)they had lots of extras done within the build,pistons,rods,blueprinting&balancing, p&p,cams etc(that you can feel)
there is no other reason why a lsv would be any stronger,I personally think nothing fits better than oem and would have a healthy b18c1-5 over any built lsv-crv anyday!
If you already have a ls crank,rods and a gsr block available then yes going with the b18c1 block is better,
since it was built with the intension to rev high and since it has the girdle,oil cooler(older models),better oil supply,the b18c1 stamp(you can sell the car for more with a gsr swap then a lsv swap),since it requires no drilling ,no taping the head and no lsv kit!
but If I had a gsr swap I would never ever do this,I dont see why and how this lsv thing has gotten so far it actually doesnt make too much sense!
MOST IMPORTANTLY:
you are doing a whole lot of machining,building,swaping and buying for what 37cc's ?that is 2% of a gain, its a number you can probably get by just upgrading your plugs!
My guess is that when people do ls vtecs there ride feels stronger cause
1)they had a b16 1600cc vs 1834 (that you can feel)
2)they had a ls non vtec 142hp vs alot more (you will feel)
3)they had lots of extras done within the build,pistons,rods,blueprinting&balancing, p&p,cams etc(that you can feel)
there is no other reason why a lsv would be any stronger,I personally think nothing fits better than oem and would have a healthy b18c1-5 over any built lsv-crv anyday!
first three lines aren't exactly relevant but you get the point if you read the thread that it was quoted from.
Last edited by g3Gsr443; 02-16-2009 at 08:03 AM.
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02-16-2009, 08:13 AM
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Re: ls crank or gsr crank
02-16-2009, 01:30 PM
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Re: ls crank or gsr crank
also, stock ls block has more torque than stock gsr block because of the crank. ls crank has longer strokes so it equals more torque. also, use the gsr rods because they are longer than ls rods. but then you mite have to check your piston to valve clearance.
02-16-2009, 02:41 PM
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Re: ls crank or gsr crank
b/c its a better motor to begin with and with mods, and my facts are based on me personally owning 3 lsv's and 1 gsr currently sitting outside and being drove by me every day. dude did not go into great detail so did not either and why do you care. i could sit here and explain why but i have a feeling you would have something to say about that too.
02-16-2009, 03:09 PM
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Re: ls crank or gsr crank
you are doing a whole lot of machining,building,swaping and buying for what 37cc's ?that is 2% of a gain, its a number you can probably get by just upgrading your plugs!
thats the difference in stroke/torque/power between the ls and gsr all calculated through cc's
IT IS NOT WORTH IT a huge waste of money.
thats the difference in stroke/torque/power between the ls and gsr all calculated through cc's
IT IS NOT WORTH IT a huge waste of money.
02-16-2009, 04:00 PM
#15
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Re: ls crank or gsr crank
you are doing a whole lot of machining,building,swaping and buying for what 37cc's ?that is 2% of a gain, its a number you can probably get by just upgrading your plugs!
thats the difference in stroke/torque/power between the ls and gsr all calculated through cc's
IT IS NOT WORTH IT a huge waste of money.
thats the difference in stroke/torque/power between the ls and gsr all calculated through cc's
IT IS NOT WORTH IT a huge waste of money.
02-16-2009, 07:36 PM
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Re: ls crank or gsr crank
you are doing a whole lot of machining,building,swaping and buying for what 37cc's ?that is 2% of a gain, its a number you can probably get by just upgrading your plugs!
thats the difference in stroke/torque/power between the ls and gsr all calculated through cc's
IT IS NOT WORTH IT a huge waste of money.
thats the difference in stroke/torque/power between the ls and gsr all calculated through cc's
IT IS NOT WORTH IT a huge waste of money.
Also, oil isn't negated by pluging the oil squirters since the stock ls rods have oil jets built in.
Going to a ls crank alone get you roughly 37 cc.
Going 81.5mm with stock gsr internals only gets you roughly 23 cc, and going 82mm just to gain CC is a bad idea in case you have to rebuild the block in the future you have no chance of overboring unless you resleeve.
On a gsr block with ls internals with 81.5mm bore will net you roughly 60 cc.
If gaining stroke and displacement was such a bad idea, then why the heck are stroker kits made?
Increased stroke and displacement leads to more torque. People get so caught up with peak HP dyno numbers, when in reality torque is just as important to going fast as a peak HP number.
02-16-2009, 07:41 PM
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Re: ls crank or gsr crank
Agreed. Will you get more torque. Yes. However you have to change things to get it and that costs $. This is not a simple swap. There are things that have to be done to both the block and the crank to make this work, and you will be negating some features that make the gsr block better than the ls. Oil squirters for one. For the money you would spend you could probably get a SC and be better off. I guess if you are going to do it for the experience, good for you. But if you are paying people to do the work, huge waste of money. Would i do this if had unlimited resources, yes but since i don't you could find hp easier
I highly doubt you can get a SC for less then $800. That's about how much my gsr block w/ ls internals and rs pistons ran me.
02-16-2009, 07:49 PM
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Re: ls crank or gsr crank
I really dont think its worth it in general, cuz the machining that needs to be done. Also if you want ls crank why dont you go lsvtec?
02-16-2009, 07:52 PM
#19
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Re: ls crank or gsr crank
the only machine work is to move the oil squirters and i want to get the crank balanced with arp rod bolts...
there are many people that do the build but never finish it on the forums with details..
this is my build
https://honda-tech.com/forums/acura-integra-6/rebuilding-dc2-gsr-2497453/
there are many people that do the build but never finish it on the forums with details..
this is my build
https://honda-tech.com/forums/acura-integra-6/rebuilding-dc2-gsr-2497453/
02-16-2009, 09:08 PM
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Re: ls crank or gsr crank
What is the machining that everyone is talking about? If you haven't done this build or don't have any actual building experience then keep your 'he said she said' rumors to yourselves.
02-16-2009, 09:20 PM
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Re: ls crank or gsr crank
Wow, there is alot of wrong info in this thread. To the OP: Have you searched around in the FAQs section yet? There is a ton of info there you can read up on.
I would use an LS crank. The machining needed is minimal AT BEST while most of the stuff can be done at home by any compotent person. Also, You CAN'T use OE GSR/R rods on an LS crank. The rod journals are not the same width.
I would use an LS crank. The machining needed is minimal AT BEST while most of the stuff can be done at home by any compotent person. Also, You CAN'T use OE GSR/R rods on an LS crank. The rod journals are not the same width.
02-17-2009, 03:19 PM
#22
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Re: ls crank or gsr crank
Wow, there is alot of wrong info in this thread. To the OP: Have you searched around in the FAQs section yet? There is a ton of info there you can read up on.
I would use an LS crank. The machining needed is minimal AT BEST while most of the stuff can be done at home by any compotent person. Also, You CAN'T use OE GSR/R rods on an LS crank. The rod journals are not the same width.
I would use an LS crank. The machining needed is minimal AT BEST while most of the stuff can be done at home by any compotent person. Also, You CAN'T use OE GSR/R rods on an LS crank. The rod journals are not the same width.
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