ls block and gsr block?

[liquid8]

is it true that the ls block and the gsr block are the same and that the only difference in the engines mainly is the head? so would it be safe to say that if you got a ls block and put a gsr head that it would produce the same power as the gsr and be the same thing? cuz i'm planning on putting a motor in my hatch but i don't have funds. so my friend told me to get the ls motor and change the head and ecu later. is this a good idea. thanks

[cybercrx00]

I think you have to do some drilling on the LS block to have the vtec be functional on the head. Something about an oil feed. But I'm sure if you look around the internet there should be tons of writeups about it...........here......I just found this http://www.diyracing.com/ls_vtechowto.html

[AznRide]

The LS block has more torque then Gsr block, that's why people start doing ls/vtec now. IMO, get the ls now, then find a vtec head later, easy thing to do. If you are a subcriber to Import Tuner, look in the issue #25, they show you how to do LS/Vtec conversion.

[Moppie]

Please explain to me how one block can have more toque than another?

[kane2g]

Please explain to me how one block can have more toque than another

crank, compression ratio, and the fact that the LS block has bigger displacement.
BTW they block are not the same, they are alike.
well b18b1 block and B17 block from integra are same.
again in those blocks there are different cranks etc.
GSRs b18c3 block has oil squirters and other cool little things that b18 block or b17 block dont have. b17 GSR is basically a LS/Vtec that honda gave smaller displacement and higher compretion ratio.
Hope this helps

[liquid8]

what would be better? the gsr head or the b16 head? would these make it frankensteinish and make it run all funky. my friend said that he heard a ls block with a b16 head and it sounded wierd as fuck. is this bad?

[kane2g]

I've heard that people like the B16 head better because of the single runners in the intake manifold, which makes it less pain in the butt to find a chip for it, but have no personal experience.
I think b16 head has better flow through it.

[mellowboy]

Originally posted by AznRide
The LS block has more torque then Gsr block, that's why people start doing ls/vtec now. IMO, get the ls now, then find a vtec head later, easy thing to do. If you are a subcriber to Import Tuner, look in the issue #25, they show you how to do LS/Vtec conversion.

No the GSR block and the LS block are almost the same specs in torque. Its only a pound or two difference in torque. The ls have atleast 127 lbs of torque while the gsr has 128 lbs of torque.

[mellowboy]

Originally posted by liquid8
is it true that the ls block and the gsr block are the same and that the only difference in the engines mainly is the head? so would it be safe to say that if you got a ls block and put a gsr head that it would produce the same power as the gsr and be the same thing? cuz i'm planning on putting a motor in my hatch but i don't have funds. so my friend told me to get the ls motor and change the head and ecu later. is this a good idea. thanks

If you're planning to swap ..why don't u just go with a gsr motor?

[AznRide]

well, the LS engine has like more than 1800cc and the GSR engine has like 1790+, I forgot where I've read it but I think it's in the Import Tuner issue #25. So really, if you ahve that, read the article. the reason that the ls has 1 lb of torque less then the gsr because it doesn't have vtec. When you have vtec with the ls block, more torque are being created. Dyno proven. Don't take my word for it but I've seen good comments about the LS/Vtec. Also when the LS hit vtec, up to 10 hp gain than the gsr.

Ok, this is none of this topic subject but my computer keep typing by itself. Does anyone else know this problem? Only when I'm using IE though, weird. don't know if it's a virus or sometihng, here this is what it kept on writing

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Ok, that's about 5 mins leaving my computer doing nothing, anyone have the same problem?and the

[90CRXZCSi]

IMO the GSR is a waste of money. I like the idea of LSVTEC. Buy the LS motor now and later on down the road just throw on a VTEC head and you produce way more power than a GSR. In some dynos i've seen about 196-210hp @ the flywheel and 135-150lb-ft. It all depends on how you do it and what other mods you end up doing to it.

[liquid8]

i heard the labor for the ls vtec is a bitch though. like it's gonna cost a lot to assemble the two. will it cost more than the gsr? what were the stats off of? a b16 head or a b18c head?

[Moppie]

Talking about dyno's you've heard about or seen a pic of on the net means crap. Unless you can post the dyno graphs, or provide a link to the site with details then dont bother. Your only wasting our time.

THE ONLY REASON THE LS/VTEC PRODUCES ANY MORE HP THAN A B18c IS BECUASE THE LS PISTONS COMBINED WITH B16a HEAD PRODUCES A MUCH HIGHER COMPRESION RATIO AND UTILIZES THE BETTER HEAD DESIGN OF THE B16a COMPARED WITH A B18c.

Infact a B16a head on a B18c with high C/R pistons is far better way of making the same power.

The extra 10cc of capcity = maybe an extra hp, if that. And it would be lost to heat because of the lack of in block oil squirters.

The only advantage an LS/VTEC has is if you are prepared to do all the work yourself. Then labour is free, and the cost of an LS block with B16a head is much less than a complete B18c.

If however you dont have the know how to do it yourself, then forget about it. Keep it simple and buy a B18c. If you want 200+hp then throw some cheap cams in it.

If you have basic know how then stick a b16a head on your B18c.

But untill I see a qualified enginer with Honda engine knowledge come in here and say the LS/VTEC is suprior to the B18c in everything but price I will never recomend it to anybody, but those with strong engine building skills and a desire to do something differnt.

[Setanta]

I hear more and more reasons against the ls-VTEC every day. Mostly to do with rod speed - as in VTEC engines are built to rev like shit and make the power at the top whereas the LS is designed to make max power in the midrange.

Put the combo together and you have an engine whose conrods are not designed to swing at the speed that an average VTEC makes peak power. There was a really good article on it somewhere on the 'net, I'll see if I can track it down.

[dejoux]

Originally posted by Setanta
There was a really good article on it somewhere on the 'net, I'll see if I can track it down.

This one?

http://www.hondastyle.com/news/wmview.php?ArtID=5