cracked aftermarket sleeve
04-28-2006, 03:21 PM
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cracked aftermarket sleeve
The sleeve on a project of ours is cracked at the 9:45 postion #3 cylinder, can you all give me some insight on the situation please
04-28-2006, 06:53 PM
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Re: (teg racer 877)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teg racer 877 »</TD></TR><TR><TD CLASS="quote">how much psi were you running?</TD></TR></TABLE>
Why would that matter? PSI has nothing to do with cracked sleeves.
Why would that matter? PSI has nothing to do with cracked sleeves.
04-28-2006, 07:52 PM
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Re: (beerbongskickass)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beerbongskickass »</TD></TR><TR><TD CLASS="quote">Why would that matter? PSI has nothing to do with cracked sleeves.</TD></TR></TABLE>
wrong!!
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">When detonation occurs cylinder pressure can see a 500% increase to 5000 PSI.</TD></TR></TABLE>
wrong!!
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">When detonation occurs cylinder pressure can see a 500% increase to 5000 PSI.</TD></TR></TABLE>
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04-28-2006, 08:37 PM
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Re: (2point2)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2point2 »</TD></TR><TR><TD CLASS="quote">wrong!!</TD></TR></TABLE>
Actually I'm not wrong. I guess what I meant to say was how much boost your running "PSI" has nothing to do with sleeves cracking.
http://forums.evans-tuning.com...=1261
Actually I'm not wrong. I guess what I meant to say was how much boost your running "PSI" has nothing to do with sleeves cracking.
http://forums.evans-tuning.com...=1261
04-29-2006, 09:45 AM
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Re: (beerbongskickass)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beerbongskickass »</TD></TR><TR><TD CLASS="quote">
Actually I'm not wrong. I guess what I meant to say was how much boost your running "PSI" has nothing to do with sleeves cracking.
http://forums.evans-tuning.com...=1261</TD></TR></TABLE>
um yea it does matter, when u run high boost its harder to dial in the tune, especially on pump gas, so its more likely to run lean and detonate causing a cracked sleeve
and way more likely to happen when not tuned by a pro.
Actually I'm not wrong. I guess what I meant to say was how much boost your running "PSI" has nothing to do with sleeves cracking.
http://forums.evans-tuning.com...=1261</TD></TR></TABLE>
um yea it does matter, when u run high boost its harder to dial in the tune, especially on pump gas, so its more likely to run lean and detonate causing a cracked sleeve
and way more likely to happen when not tuned by a pro.
04-29-2006, 10:52 AM
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Re: (teg racer 877)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teg racer 877 »</TD></TR><TR><TD CLASS="quote">
um yea it does matter, when u run high boost its harder to dial in the tune, especially on pump gas, so its more likely to run lean and detonate causing a cracked sleeve and way more likely to happen when not tuned by a pro. </TD></TR></TABLE>
Read that thread I posted, it's a good thread, and it will explain why "PSI" doesn't matter a lot better than I could. I get what your trying to say, but boost is just a number and it can very so much. Running 10psi with a big T4 turbo is not even close to the same as 10psi with a small T3 turbo. So just saying "10psi" really doesn't mean much unless you also talk about the compression of the motor, the size of the turbo, fuel being used, etc... Like I said I'm sure that article or somebody else could explain it better than I could.
um yea it does matter, when u run high boost its harder to dial in the tune, especially on pump gas, so its more likely to run lean and detonate causing a cracked sleeve
and way more likely to happen when not tuned by a pro. </TD></TR></TABLE>Read that thread I posted, it's a good thread, and it will explain why "PSI" doesn't matter a lot better than I could. I get what your trying to say, but boost is just a number and it can very so much. Running 10psi with a big T4 turbo is not even close to the same as 10psi with a small T3 turbo. So just saying "10psi" really doesn't mean much unless you also talk about the compression of the motor, the size of the turbo, fuel being used, etc... Like I said I'm sure that article or somebody else could explain it better than I could.
04-29-2006, 01:30 PM
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Re: (Sketch_hs)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blundar »</TD></TR><TR><TD CLASS="quote">beerbongs is right. psi doesn't break sleeves, detonation does. If you had detonation, get a better tuner or a better setup or better gas. the end.</TD></TR></TABLE>
Absolutely!
yeah and tell me that 30 even 40 or 50 PSI of air is going to crack sleeves. It's the resulting high horsepower that brings heat/sideloading(high revs)/possible detonation/etc that contributes to sleeves cracking. Run all the boost you want just make sure the burn is controlled and heat is expelled.
Absolutely!yeah and tell me that 30 even 40 or 50 PSI of air is going to crack sleeves. It's the resulting high horsepower that brings heat/sideloading(high revs)/possible detonation/etc that contributes to sleeves cracking. Run all the boost you want just make sure the burn is controlled and heat is expelled.
04-29-2006, 02:07 PM
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tell that to greg from "drivers image" (what a joke of a shop)
he told me i couldnt run more than 10 psi through factory honda sleeves...they'd blow up! haha
-adam, who is safely running 22 psi through a stock d16a6 block, with only aftermarket rods/pistons...every day.
no detonation=party all the time..
he told me i couldnt run more than 10 psi through factory honda sleeves...they'd blow up! haha
-adam, who is safely running 22 psi through a stock d16a6 block, with only aftermarket rods/pistons...every day.
no detonation=party all the time..
04-29-2006, 03:46 PM
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Re: (teg racer 877)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teg racer 877 »</TD></TR><TR><TD CLASS="quote">um yea it does matter, when u run high boost its harder to dial in the tune, especially on pump gas, so its more likely to run lean and detonate causing a cracked sleeve and way more likely to happen when not tuned by a pro. </TD></TR></TABLE>
it doesnt have anything to do with running lean.. sure a lean condition will lead to detination.. so will too much timing, improper quench, even a knick on your piston.. if you are running lean either your fuel system or tuner is at fault..
PS, your not going to be running "high" boost on pumpgas
and way more likely to happen when not tuned by a pro. </TD></TR></TABLE>it doesnt have anything to do with running lean.. sure a lean condition will lead to detination.. so will too much timing, improper quench, even a knick on your piston.. if you are running lean either your fuel system or tuner is at fault..
PS, your not going to be running "high" boost on pumpgas
04-29-2006, 03:59 PM
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Re: (Zakar)
ok wait u guys arent hearing me right, all im saying is when you are running high boost it is more likely to detonate, so its more likely to crack a sleve, Im talking about pump gas here. I know a really good tune will cut down on detonation but you can only tune so far, 91 octane is gonna max out somewhere and start to detonate no matter what, right?
04-29-2006, 06:46 PM
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Re: (Zakar)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Zakar »</TD></TR><TR><TD CLASS="quote">
PS, your not going to be running "high" boost on pumpgas</TD></TR></TABLE>
What do you consider high boost? It's really the resulting Horsepower that decides what kind of fuel you need. The amount of fuel dumped into the cylinders is DIRECTLY proportional to horsepower. You can run 25PSI on small T3/T4 and dump just as much fuel as a GT40R at 14PSI (just listing an example). If you start making over 300wtrq then that's when you want to switch to something higher then 93. In fact on my LS build I plan on running around 25lbs and still use pump gas. I'll stop bumping the power when I reach 300wtrq or 400whp or my turbo runs out of breath. What PSI this all happens at is truley irrelavant.
PS, your not going to be running "high" boost on pumpgas</TD></TR></TABLE>
What do you consider high boost? It's really the resulting Horsepower that decides what kind of fuel you need. The amount of fuel dumped into the cylinders is DIRECTLY proportional to horsepower. You can run 25PSI on small T3/T4 and dump just as much fuel as a GT40R at 14PSI (just listing an example). If you start making over 300wtrq then that's when you want to switch to something higher then 93. In fact on my LS build I plan on running around 25lbs and still use pump gas. I'll stop bumping the power when I reach 300wtrq or 400whp or my turbo runs out of breath. What PSI this all happens at is truley irrelavant.
04-29-2006, 06:57 PM
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Re: (JSpin)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JSpin »</TD></TR><TR><TD CLASS="quote">i think 2point2 was making a funny </TD></TR></TABLE>
chuck norris can break a sleeve with his bare hands.
</TD></TR></TABLE>chuck norris can break a sleeve with his bare hands.
04-29-2006, 11:39 PM
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Re: (teg racer 877)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teg racer 877 »</TD></TR><TR><TD CLASS="quote">ok wait u guys arent hearing me right, all im saying is when you are running high boost it is more likely to detonate, so its more likely to crack a sleve, Im talking about pump gas here. I know a really good tune will cut down on detonation but you can only tune so far, 91 octane is gonna max out somewhere and start to detonate no matter what, right? </TD></TR></TABLE>
It doesn't matter what PSI the engine is seeing. You look at the HP and TQ output.
I am running 18-20 PSI on my GT2871R, 10.5:1 CR and pump gas. The engine is still running because my engine is only pushing about 380 WHP. 380 WHP is nothing spectacular on pump gas, get it now? It has nothing to do with "high boost".
It doesn't matter what PSI the engine is seeing. You look at the HP and TQ output.
I am running 18-20 PSI on my GT2871R, 10.5:1 CR and pump gas. The engine is still running because my engine is only pushing about 380 WHP. 380 WHP is nothing spectacular on pump gas, get it now? It has nothing to do with "high boost".
04-30-2006, 09:09 AM
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Re: (Tony the Tiger)
Ok I think I got it, but why does everyone say to stay below like 10-12 psi on stock internals then? why dont they say to stay below a certain whp?
04-30-2006, 09:20 AM
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Re: (teg racer 877)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teg racer 877 »</TD></TR><TR><TD CLASS="quote">Ok I think I got it, but why does everyone say to stay below like 10-12 psi on stock internals then? why dont they say to stay below a certain whp? </TD></TR></TABLE>
because they are misinformed
because they are misinformed
04-30-2006, 09:32 AM
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Re: (beerbongskickass)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tony the Tiger »</TD></TR><TR><TD CLASS="quote">
It doesn't matter what PSI the engine is seeing. You look at the HP and TQ output.
I am running 18-20 PSI on my GT2871R, 10.5:1 CR and pump gas. The engine is still running because my engine is only pushing about 380 WHP. 380 WHP is nothing spectacular on pump gas, get it now? It has nothing to do with "high boost".
</TD></TR></TABLE>
No, it is still running because you are running 18-20psi and not 30+. PSI is very relevant, since you tune cars to the knock threshold. We tune internal combustion motors, they run on air and fuel. The qualites of the air and fuel are very significant.
Just because every n00bzor can throw a cliched phrase around does not mean it has no value to those who understand it. PSI is very complicated. The difficulties that arise from it are convoluted within the system of the car that is for sure. But by no means, whatsoever, is PSI irrelevant. By defenition of irrelevant, then, race gas would not be necesarry then to run 30+psi.
It doesn't matter what PSI the engine is seeing. You look at the HP and TQ output.
I am running 18-20 PSI on my GT2871R, 10.5:1 CR and pump gas. The engine is still running because my engine is only pushing about 380 WHP. 380 WHP is nothing spectacular on pump gas, get it now? It has nothing to do with "high boost".
</TD></TR></TABLE>
No, it is still running because you are running 18-20psi and not 30+. PSI is very relevant, since you tune cars to the knock threshold. We tune internal combustion motors, they run on air and fuel. The qualites of the air and fuel are very significant.
Just because every n00bzor can throw a cliched phrase around does not mean it has no value to those who understand it. PSI is very complicated. The difficulties that arise from it are convoluted within the system of the car that is for sure. But by no means, whatsoever, is PSI irrelevant. By defenition of irrelevant, then, race gas would not be necesarry then to run 30+psi.