what is the difference between the integra ls and the gsr engine block? what makes the ls block so much better, as in ls/vtec? i was thinking of putting the internals of an ls into a gsr block with a gsr head, then no drilling will be needed. I know the ls block is bigger but if it was resleeved would it be the same? please get back to me!

 

<<http://www.hondastyle.com/articles/display.php?categorypinions&article=ls-vtec.inc>>

The smiley is an "equals sign o" and I couldn't figure out how to disable smiley's on this post. If the link doesn't work let me know.


[Modified by drewspeed, 5:28 PM 11/22/2001]


[Modified by drewspeed, 5:29 PM 11/22/2001]

 

correct me if I am wrong, but most people do it because they don't have a gsr block, I think they would rather just have a gsr engine, but all they have is a ls, so they put a gsr head on it.

if you are going to get a gsr block, you might as well put gsr pistons in it, unless you are going FI, in which case if you have the money to go FI and rebuild the bottom end you can afford new low comp pistons.

or am I totally missing your point?

 

Or try this link and click on the link within this.

The article is quite informative.

http://defconracing.netfirms.com/cgi...um=1&topic=253

 

Actually I've got a question to clear up and don't want to take up a new post. What is the diff between the b16a and b18c that make the difference in displacement? Is it Rods Crank and Pistons? Why don't you ever hear of people buying b16a's and turning them into b18c's?

 

Correct me if I'm wrong but I believe the difference in displacement is in the bottom end. Stated on the bottom end itself. The heads don't increase displacement. Adding a spacer would increase displacement ie. 1.8L to 2.0 or if you use the B20 bottom end.

 

Alright, the block's displacement is determined by the STROKE of the crank and the BORE of the cylinders (how wide the diameter of the cylinders are). Hence, bore and stroke.

Now, you can stroke a B16A into a 1.8L by using a B18C5 crank, rods, and pistons (DarkSol sells this kit).

Now, the B18B has a displacement of like 18??ccs. And the B18C1 has a displacement of 1797cc. The bore is larger. So, if u had a B18C then u could bore out the cylinder walls (resleeve) to increase displacement which almost every drag racer does. They bore their B18Cs to 1.9L

peace

boi

 

just to clear up a few things. People get the LS bottom end because it's MUCH cheaper than the C1/C5 bottom. The C1/C5 bottom is better in every way, except that is is slightly smaller in displacement. The b18a/b is 1834cc and the C1/C5 is 1797cc. You won't be able to tell a difference (I'd guess 4ft lbs +/-) from that. If you have the cash for a C1/C5 bottom, DO IT.

I did a full write up, under "LSVTEC" in my sig.

hth, -C

 

[Now, the B18B has a displacement of like 18??ccs. And the B18C1 has a displacement of 1797cc. The bore is larger.
peace

boi[/QUOTE]

Wrong, the bore is the same in the LS as in the B18C, B18CR, and B16A. The difference in the these is the stroke. The LS has about 2mm longer stroke than the B18C. The same difference in stroke tends to make more compression than that difference used in bore. The old saying is, "the power is in the stroke." You can switch out the LS internals into a B18C block. You can use the LS crank and rods (these I would replace with Eagle or something stronger) and any B series piston you please.
As for increase in performance, expect 5-10 ft-lbs, across the board. Not much, but in the world of Hondas, it is enough to make a difference...


Jason

 

Ok i didn't really get a clear answer. I know what makes displacement, I asked WHICH parts do it when comparing b16a to b18c. VTEC_boi it's all 3??? Which effects displacement the most?

 

Which effects it the most? A 2mm chnage in bore will give the same size as a 2mm change in stroke.
Parts, the crank, rods and block are different from the B16 to the B18. The b18C to the B18B, the crank and rods are different.
As for which makes a larger difference in power, the same increase in stroke seems to make more power than an increase of the same size in bore...


Jason

 

My bad, it is the stroke - thanks for the correction man.

The reason it would take all of that is that the rods from the crank are needed to fit the B16A block and well - the pistons are just better in the B18C5

But, FSTASNTZ has it covered