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-   -   B18c1 Bottom End.... (https://www.homemadeturbo.com/hybrid-tech-8/b18c1-bottom-end-95527/)

B18SI 09-20-2008 10:11 PM

B18c1 Bottom End....
 
Hey guys as everyone in here knows Honda's dont have torque and the old saying "there is no replacement for displacement." So I have B18c1 block from a 99 GSR, and I know the stroke is 3.433". I would like to pull a little more stroke and torque from this bottom end before I built the head and turbo it. I want to put an LS crank in the motor instead of getting the Eagle forged stroker crank to achieve the same stroke. I know I may have to worry about the Oil Squirters in my block, I thought about possibly getting the counter weights on the LS crank grinded and rebalanced to not have to remove or try to bend the oil squirters. But what is everyone's opinion on putting LS crank in the GSR block to achieve more torque. But I will run eagle rods and je pistons with this setup. Thanks before hand

seerex 09-20-2008 10:46 PM

Re: B18c1 Bottom End....
 
Just get a ls block and call it a day.

B18SI 09-20-2008 10:54 PM

Re: B18c1 Bottom End....
 
I have the block now at the machine shop, I really dont want to have to buy a LS block and get inspected at the shop then have to do an vtec conversion. I honestly don't see how I should get rid of my gsr block to get an ls block, if its that big of a problem I will stick with my gsr crank. I mean get a ls put a vtec conversion or use the block i have paid for and ready to build and fab a ls crank in it. Honestly I don't see the big problem besides the oil squirters clearance which can be an easy fix. I am using the gsr block so should I stick with the gsr crank or go ls crank?

B18SI 09-20-2008 11:17 PM

Re: B18c1 Bottom End....
 
I could be mistaken but isn't vtec blocks built stronger than non-vtec blocks. Since LS block where never vtec wouldn't this make the block weaker due to the less webbings that the vtec blocks?

turbohf 09-21-2008 04:07 PM

Re: B18c1 Bottom End....
 
i wouldnt ever worry about the "strength" of the block as much as you are. both blocks are fine.

as for the piston squirters...fuckem...Golden Eagle makes some plugs, pretty sure you can get them from Xenocron. they are like 15bucks. removing them and putting the plugs in them will increase oil pressure also, bonus.

next block i build will have a 87.2mm crank...current has the 89mm... thats my opinion...

B18SI 09-21-2008 04:36 PM

Re: B18c1 Bottom End....
 
U would never worry about the strength of the block? U know the saying better safe than sorry, I will chose a stronger already vtec block over a slightly weaker and non vtec block anyday. And you are going from a 89mm stroke to a 87.2mm why?

turbohf 09-21-2008 04:42 PM

Re: B18c1 Bottom End....
 
i would rather rev it a little higher.

i would never worry about the strength of a non-VTEC block. but it sounds like you have a B18C so run it. i dont understand the issue? i dont care for non-VTEC blocks cuz of the oil line ----, just more ---- to go wrong and cause problems...

B18SI 09-21-2008 05:17 PM

Re: B18c1 Bottom End....
 
Yea I don't care much for them either, plus I got this block for a steal. It just needs a new crank which is why I was debating on putting the LS Crank and Rods in the block. But really what it may come down to is whichever one I find first for a good deal. Cause I am going to run my B16a2 head on this setup. From what I can tell they flow really well and I have the an entire b16a2 in my car lol. You wouldn't happen to know what the specs on the ITR and CTR cams are or where I can find them. Cause I need to figure out the Head setup I need to run if I find an LS crank before a GSR. Thanks

Tom-Guy 09-21-2008 07:22 PM

Re: B18c1 Bottom End....
 
The extra stroke from the LS crank, compared to GSR, is going to cost you a lot of time and money to net absolutely no noticeable gain.

The only thing weak about LS blocks is the lack of a girdle, and that only comes into effect when the engine is subjected to sustained 9500 rpm action. Which is okay, the girdle motors don't take it forever and come apart too, but if you feel like you have to do it them they last a lot longer.

I'm currently building a 700 whp 85mm LS motor, not the first 700 whp car I've been through, I've been around a minute and turn 33 soon so that makes me a grandad in the Honda scene. LS aren't weak motors, they just aren't suited to anything past 8K rpms. The cranks are fine to 10K, but the lack of girdle and especially the rocker design isn't up to it.

LS/VTEC with cams and CR taken to 8500 rpms is an affordable way to hit or push past 200 whp in NA trim on a budget. For a stock cam turbo build being revved 8-8.5K I see no difference in quality between LS/VTEC and straight GSR.

B18SI 09-21-2008 07:51 PM

Re: B18c1 Bottom End....
 
I aint that much of a young one in the cars world maybe honda's but not cars in general. But the LS/VTEC setups are to much more to go wrong. I do know one thing is the external oil lines and the mods needed to properly do a LS/VTEC seems weaker than a block built for vtec in the first place. I am not tryin to argue with you. But I dont have a crank for this car the whole reason I am debating on a LS crank is I can get my hands on one alot easier than the GSR crank. I know the whole 2 each cubic inches I wil get from the LS crank is nothing when it comes to a motor. Its nothing like stroker a 400 big block to a 454. But if the LS crank in the block will be a major problem I will wait around until I find a GSR crank in good condition. But can you explain this to me, everyone does a LS/VTEC but there is really no difference between that and the GSR so why not take the money for the VTEC conversion and the block and find a GSR and save yourself the work on the vtec conversion? Its a great debate that I dont understand, just wish someone would clear it up lol. Thanks everyone


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