Pro and Cons of blockguard!!!!!
Junior Member
Joined: Aug 2002
Posts: 760
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From: WA, USA
Re: (AVATAR)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AVATAR »</TD></TR><TR><TD CLASS="quote">cool guys, I was starting to think I was the only one that wasnt anti BG</TD></TR></TABLE>
We're a rare breed here on H-T but we do exist. Kind of like the Samurai.
We're a rare breed here on H-T but we do exist. Kind of like the Samurai.
Member
Joined: Oct 2002
Posts: 1,612
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From: Bloomington, IN
Re: (beerbongskickass)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beerbongskickass »</TD></TR><TR><TD CLASS="quote">
That's how you warp cylinders.... you have to bore and hone, etc after installation. Go ahead and tap it in if you want, but it will just cause problems. Instead of buying a block guard and paying for installation spend the money on tuning. If you get to a point where your worried about the cylinders have the block sleeved. If you just have to have extra protection then post the block.</TD></TR></TABLE>
good way of spreading bad info...please give an example of someone you know with a block guard tapped in that has "warped the cylinder" and you dont have to bore the cylinder after installing it, just hone.
and posting, i believe that would be a much harder at home installation then putting a block guard in, not to mention much more chance of cracking your cylinder
about the overheating, either someone has a shitty design or something else wrong. my friends gsr motor with an str blockguard was daily driven on in 90+ degree heat and never overheated.
block guard is only $100...i say if you have the extra money it wouldnt hurt, but if you are on a tight budget spend the extra money towards good engine managment and or at least legit tuning
That's how you warp cylinders.... you have to bore and hone, etc after installation. Go ahead and tap it in if you want, but it will just cause problems. Instead of buying a block guard and paying for installation spend the money on tuning. If you get to a point where your worried about the cylinders have the block sleeved. If you just have to have extra protection then post the block.</TD></TR></TABLE>
good way of spreading bad info...please give an example of someone you know with a block guard tapped in that has "warped the cylinder" and you dont have to bore the cylinder after installing it, just hone.
and posting, i believe that would be a much harder at home installation then putting a block guard in, not to mention much more chance of cracking your cylinder
about the overheating, either someone has a shitty design or something else wrong. my friends gsr motor with an str blockguard was daily driven on in 90+ degree heat and never overheated.
block guard is only $100...i say if you have the extra money it wouldnt hurt, but if you are on a tight budget spend the extra money towards good engine managment and or at least legit tuning
Joined: Sep 2003
Posts: 2,199
Likes: 1
From: WA
Re: (gritsak)
I just got that info from http://www.theoldone.com
The concept is really a good one. My personal experience with them is that the top of the cylinder bore runs extremely hot due to the lack of coolant. We have taken the unit and used a 3/8" end mill and scalloped the circular sections which surround the cylinder bores. We leave only 1/8th" sections every 3/8th". So you still support the cylinder, but only in 1/8th" wide areas, which allows much better cylinder cooling, and if you do this mod, and you really need the support, do it....it'll work. Make sure that after "fitting" the unit, bore and hone after installation. Also deck the block after installation and clean the block thoroughly before assembly. Do not, under any circumstances remove the blockguard after all this machining and prep, or you'll need to start over........................T.O.O. ..........................
I'm sure there are lots of people that have used a block guard without problems, but what about the people that HAVE had problems even when it WAS installed properly? I could care less if you know or are somebody that has used one without a hitch. I'm not claiming to know everything about them and I don't have any personal experience with them, but I have done enough research on block guards to make my own mind up. I have just read too many bad things. I rely on the internet for a lot of my information and I try to read as much as I can. I just don't think everybody that talks about having problems with block guards are going to make it up without a reason. Just do some research and decide for yourself.
The concept is really a good one. My personal experience with them is that the top of the cylinder bore runs extremely hot due to the lack of coolant. We have taken the unit and used a 3/8" end mill and scalloped the circular sections which surround the cylinder bores. We leave only 1/8th" sections every 3/8th". So you still support the cylinder, but only in 1/8th" wide areas, which allows much better cylinder cooling, and if you do this mod, and you really need the support, do it....it'll work. Make sure that after "fitting" the unit, bore and hone after installation. Also deck the block after installation and clean the block thoroughly before assembly. Do not, under any circumstances remove the blockguard after all this machining and prep, or you'll need to start over........................T.O.O. ..........................
I'm sure there are lots of people that have used a block guard without problems, but what about the people that HAVE had problems even when it WAS installed properly? I could care less if you know or are somebody that has used one without a hitch. I'm not claiming to know everything about them and I don't have any personal experience with them, but I have done enough research on block guards to make my own mind up. I have just read too many bad things. I rely on the internet for a lot of my information and I try to read as much as I can. I just don't think everybody that talks about having problems with block guards are going to make it up without a reason. Just do some research and decide for yourself.
Honda-Tech Member
Joined: Apr 2003
Posts: 592
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From: Englishtown, NJ
Re: (beerbongskickass)
well when boosting over 20psi and you cant afford to have your block sent out and sleeved then what do you do?... blockguard is a good alternative... you could say tuning this and tuning that but at a certain point even with a perfect tune the walls will give out due to the pressure... blockguard attempts to aleviate this problem by bracing the cyclinder walls... i have heard far worse things about posting your block...
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Joined: Apr 2003
Posts: 592
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From: Englishtown, NJ
Re: (Jaesung)
i am friends with geoff over at full race and he told me to never post the block... the way it braces the cyclinders is no good... dont remember the exact story but i remember it was pretty bad... sorry i cant be more detailed...
Joined: Sep 2003
Posts: 2,199
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From: WA
Re: (fullracegsr)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fullracegsr »</TD></TR><TR><TD CLASS="quote">i am friends with geoff over at full race and he told me to never post the block... the way it braces the cyclinders is no good... dont remember the exact story but i remember it was pretty bad... sorry i cant be more detailed... </TD></TR></TABLE>
Another quote from http://www.theoldone.com
The posting process involves machining and tapping holes in the thrust sides of the block and torquing in threaded aluminum “posts” that physically “connect” the outer part of the cylinder with the outside (peripheral) walls of the block. With these “posts” installed, if the cylinder walls are going to move, they have to move the outside walls of the block too, so they add a tremendous amount of strength, making the block capable of withstanding a lot of abuse. This modification also has no ill effect on cylinder cooling, which is something I’m big on these days.
I have never heard of anybody having a problem with posting their block until you said something. No details about why he said that huh? It sounds like your friend was just trying to sell you a block guard. Posting your block braces your sleeves in 12 spots... I don't see what could be bad about that. From what I understand when sleeves crack they start cracking from the middle and go up, so I would assume you would want more support there. Also people in NASCAR were posting their blocks years ago.
Block guard
Block posting
Block sleeving
Another quote from http://www.theoldone.com
The posting process involves machining and tapping holes in the thrust sides of the block and torquing in threaded aluminum “posts” that physically “connect” the outer part of the cylinder with the outside (peripheral) walls of the block. With these “posts” installed, if the cylinder walls are going to move, they have to move the outside walls of the block too, so they add a tremendous amount of strength, making the block capable of withstanding a lot of abuse. This modification also has no ill effect on cylinder cooling, which is something I’m big on these days.
I have never heard of anybody having a problem with posting their block until you said something. No details about why he said that huh? It sounds like your friend was just trying to sell you a block guard. Posting your block braces your sleeves in 12 spots... I don't see what could be bad about that. From what I understand when sleeves crack they start cracking from the middle and go up, so I would assume you would want more support there. Also people in NASCAR were posting their blocks years ago.
Block guard
Block posting
Block sleeving
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Joined: Sep 2001
Posts: 1,104
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From: Texas
Re: (beerbongskickass)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beerbongskickass »</TD></TR><TR><TD CLASS="quote">
That's how you warp cylinders.... you have to bore and hone, etc after installation. Go ahead and tap it in if you want, but it will just cause problems. Instead of buying a block guard and paying for installation spend the money on tuning. If you get to a point where your worried about the cylinders have the block sleeved. If you just have to have extra protection then post the block.</TD></TR></TABLE>
Thats why you dont install them that way. Take the material off the BG so that it it just slides in. should fit snug but by no means tight. No forcing it in.
That's how you warp cylinders.... you have to bore and hone, etc after installation. Go ahead and tap it in if you want, but it will just cause problems. Instead of buying a block guard and paying for installation spend the money on tuning. If you get to a point where your worried about the cylinders have the block sleeved. If you just have to have extra protection then post the block.</TD></TR></TABLE>
Thats why you dont install them that way. Take the material off the BG so that it it just slides in. should fit snug but by no means tight. No forcing it in.
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Joined: Apr 2003
Posts: 592
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From: Englishtown, NJ
Re: (beerbongskickass)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beerbongskickass »</TD></TR><TR><TD CLASS="quote">
I have never heard of anybody having a problem with posting their block until you said something. No details about why he said that huh? It sounds like your friend was just trying to sell you a block guard. Posting your block braces your sleeves in 12 spots... I don't see what could be bad about that. From what I understand when sleeves crack they start cracking from the middle and go up, so I would assume you would want more support there. Also people in NASCAR were posting their blocks years ago.
</TD></TR></TABLE>
actually he discouraged the use of block guards also... so shut your trap... you've never installed or had block guard, you just heard stories and formed your own opinion and then discourage blockguard in every post you read about them... i stated i dont know much about posting and just heard one story and it was bad... btw every sleeve i have seen crack, cracked at the top of the sleeve... time to start posting what you know not what you've heard...
block guard
sleeving
beerbongskickass
I have never heard of anybody having a problem with posting their block until you said something. No details about why he said that huh? It sounds like your friend was just trying to sell you a block guard. Posting your block braces your sleeves in 12 spots... I don't see what could be bad about that. From what I understand when sleeves crack they start cracking from the middle and go up, so I would assume you would want more support there. Also people in NASCAR were posting their blocks years ago.
</TD></TR></TABLE>
actually he discouraged the use of block guards also... so shut your trap... you've never installed or had block guard, you just heard stories and formed your own opinion and then discourage blockguard in every post you read about them... i stated i dont know much about posting and just heard one story and it was bad... btw every sleeve i have seen crack, cracked at the top of the sleeve... time to start posting what you know not what you've heard...
block guard
sleeving
beerbongskickass
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asubennett
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Mar 20, 2005 09:20 PM