What causes rod chucking and headgasket blowing?

[Flynn]

^^^

[Dan!]

According to you, 'high' boost (~30psi).....

At those PSIs I would be more worried about blowing the gasket or chucking a rod rather than the turbo blowing, which is a relatively small thing in comparison to either of those events.

And I dont think anybody would dare question your intellect.

[Flynn]

Dan! stop being daft. Isn't replacing a gasket or engine more work than replacing a turbocharger? If running more boost doesn't increase the overall compression ratio then why do they lower the compression ratio then? It is my intellect that allows me to ask these questions.

[ginge191]

[mark_airey]

*facepalm*

Edit:- I also feel that with your self claimed "superior intellect" you would be able to come up with something better than "rod chucking" as a thread title but maybe thats just me?

[Flynn]

Well if you know then say something. As far as I am aware it is common wisdom that increasing the boost too much makes the compression too high and chucks rods or if you are lucky blows the gasket.

[Midnightclub]

As most people know it's not just about the "PSIzzzz blud" it's also about flow.. Peoples cars have chucked rods at less than 20mph in some cases so it's not exactly as if they're under high stress

[darrenjlobb]

Head Gasket - Overheating and the use of boost while overheating.

Conrods - Metal fatigue over time / high cylinder pressures.

[Flynn]

More boost increases the cylinder pressure

As most people know it's not just about the "PSIzzzz blud" it's also about flow.. Peoples cars have chucked rods at less than 20mph in some cases so it's not exactly as if they're under high stress

Cylinder pressures can still be high at 20MPH. Also having a turbo that can flow more air at less pressure will cause lower cylinder pressures than a smaller one which needs to compress it more and therefore raise the cylinder pressure and intake temperature.

So essentially I am correct :dance:

[Bananalad]

Why did you ask a question and then argue with the people that answered it?

[mark_airey]

Why did you ask a question and then argue with the people that answered it?

Because he is Flynn and has "superior intellect" to us mere mortals...............

[Flynn]

Why did you ask a question and then argue with the people that answered it?

I want to get the right answer and Midnightclub is clearly wrong. It is their pityful intellect that perceives an intelligent and well directed question as an agressive jesture.

[mark_airey]

I want to get the right answer and Midnightclub is clearly wrong. It is their pityful intellect that perceives an intelligent and well directed question as an aggressive gesture**.

How is he wrong??

**btw I have corrected your spelling for you that your "superior intellect" neglected to spell correctly

[cully]

wanker

[Flynn]

I want to get the right answer and Midnightclub is clearly wrong. It is their pityful intellect that perceives an intelligent and well directed question as an aggressive gesture**.

How is he wrong??

**btw I have corrected your spelling for you that your "superior intellect" neglected to spell correctly

Implying that rods go when the engines aren't underload. Also implying that airflow increases cylinder pressure when it is actually better to have more airflow at lower psi which will lead to lower cylinder pressures. Higher boost pressure means higher cylinder pressure and intake temperatures which strain both the rods and head gasket respectively.

[Matt]

Seriously wtaf! Why is it everytime I open a thread where Flynn has posted it is a slagging match

[Midnightclub]

Implying that rods go when the engines aren't underload. Also implying that airflow increases cylinder pressure when it is actually better to have more airflow at lower psi which will lead to lower cylinder pressures. Higher boost pressure means higher cylinder pressure and intake temperatures which strain both the rods and head gasket respectively.

I'd like you to show me exactly where i put, higher flow and lower pressure is a bad thing?

Umm.. people have had rods go when engines aren't under load, 20mph wouldn't even be 5psi when cruising. I'd also like to note that plenty of 100% standard engines have had rods go, Flynn go crawl back into your hole like a nice little troll

[mark_airey]

As midnight says, rod throwing can happen in standard cars.......................obviously they have excessive boost from the factory at a massive 14.5PSI IIRC

and as Darren has said already, HG problems are caused by overheating the car/being on boost when overheating..............

Seriously wtaf! Why is it everytime I open a thread where Flynn has posted it is a slagging match

Do you actually read any of the mindless drivel that he posts?? or the asking for answers and then arguing with anyone who answers him in a way that makes him seem like he is wrong in any way! what is the need, and this entire thread stems from a comment made in another thread earlier this morning and is pretty much entirely him trying to cause a fight/slagging off/abusing other members of the club which is un-called for, especially when most of the time its aimed at people who are actually trying to help him! Seriously WTF is the point!

Go have a read, then come back and re adjust you comment mate!

[/rant]

[Jake]

I heard a mild stage 1 tune will guarantee a rod throwing experience.

[ginge191]

anyone fancy changng the name "Flynn" to "Basher"

[Midnightclub]

anyone fancy changng the name "Flynn" to "Basher"

I could think of a few things much more appropriate but unfortunetly the swear filter would block them..

[Flynn]

Implying that rods go when the engines aren't underload. Also implying that airflow increases cylinder pressure when it is actually better to have more airflow at lower psi which will lead to lower cylinder pressures. Higher boost pressure means higher cylinder pressure and intake temperatures which strain both the rods and head gasket respectively.

I'd like you to show me exactly where i put, higher flow and lower pressure is a bad thing?

Umm.. people have had rods go when engines aren't under load, 20mph wouldn't even be 5psi when cruising. I'd also like to note that plenty of 100% standard engines have had rods go, Flynn go crawl back into your hole like a nice little troll

Not necessarily, 20 MPH in second gear accerelating. It's daft of Mark_Hairy and his posse to imply that higher boost pressure doesn't make rods more likely to chuck or head gaskets more likely to blow.

[ginge191]

posse?! brrrrap!

i suggest you quit the bickering - any serious questions flynn, please POST what you already know, it saves people re-instating things you already may know and prevent further ego boosting and arguements occuring.

[Midnightclub]

I'd like you to show me exactly where i put, higher flow and lower pressure is a bad thing?

Umm.. people have had rods go when engines aren't under load, 20mph wouldn't even be 5psi when cruising. I'd also like to note that plenty of 100% standard engines have had rods go, Flynn go crawl back into your hole like a nice little troll

Not necessarily, 20 MPH in second gear accerelating. It's daft of Mark_Hairy and his posse to imply that higher boost pressure doesn't make rods more likely to chuck or head gaskets more likely to blow.

Now i was expecting that reply.. which is why i put CRUISING not accelerating, obviously your wealth of knowledge is far better than anyone else on here...

[mark_airey]

"Superior intelligence" clearly doesn't involve reading what people put before replying though Danny!

Not necessarily, 20 MPH in second gear accerelating. It's daft of Mark_Hairy and his posse to imply that higher boost pressure doesn't make rods more likely to chuck or head gaskets more likely to blow.

3 problems here,

1, I don't have a "posse", we aren't in the wild west!
2, yet again you are still unable to spell my name!
3, stop starting threads to boost your e-penis size by telling us that you already know everything, if you do then why ask?

[Matt]

As midnight says, rod throwing can happen in standard cars.......................obviously they have excessive boost from the factory at a massive 14.5PSI IIRC

and as Darren has said already, HG problems are caused by overheating the car/being on boost when overheating..............

Seriously wtaf! Why is it everytime I open a thread where Flynn has posted it is a slagging match

Do you actually read any of the mindless drivel that he posts?? or the asking for answers and then arguing with anyone who answers him in a way that makes him seem like he is wrong in any way! what is the need, and this entire thread stems from a comment made in another thread earlier this morning and is pretty much entirely him trying to cause a fight/slagging off/abusing other members of the club which is un-called for, especially when most of the time its aimed at people who are actually trying to help him! Seriously WTF is the point!

Go have a read, then come back and re adjust you comment mate!

[/rant]

Tbh mark it wasn't aimed at you. It was more directed at Flynn. Everytime he posts something he causes this seen above. I'm starting to get tired of it. As I'm sure others agree.

Flynn- It's uncalled for, we are a pretty helpfull bunch and will try to help. But you cannot ask for help and argue with the people that are providing usefull factual information. End of.

[mark_airey]

Tbh mark it wasn't aimed at you. It was more directed at Flynn. Everytime he posts something he causes this seen above. I'm starting to get tired of it. As I'm sure others agree.

Flynn- It's uncalled for, we are a pretty helpfull bunch and will try to help. But you cannot ask for help and argue with the people that are providing usefull factual information. End of.

That's fine, mate, just wanted to be clear with my opinion as we wouldn't want it twisting by someone with "superior intelligence" would we at least we are both on the same page! Sorry if that came across wrong!

[Matt]

No worries I don't think how things could look before I type haha.

[Midnightclub]

Can we get this closed now then? Darren already gave a definitive answer

[Matt]

Yeah. Locking now