compression ratio vs boost psi

[FastFwd]

I'm not saying its not possible...im just saying everyone knows theres greater risks in high comp turbo setups. and thats why i said "great streetability - bad stablitliy".

Since ive gone lower comp i've trashed the crap out of my car and ive never had one thing happen.

[Lukezen27]

hhmm boost fade-off is bad for motors, well that's my understanding..

My EBC holds boost to red line no matter what.

Smooth boost delivery is better, someone correct me if I'm wrong

[Limbo]

what Fastfwd is saying is true.
With a high comp motor there is less margin for error.
Low comp motors have a larger margin for error, thus greater reliability.

All comes down to how well the motor has been tuned & how well its been taken care of.

[FastFwd]

what Fastfwd is saying is true.
With a high comp motor there is less margin for error.
Low comp motors have a larger margin for error, thus greater reliability.

All comes down to how well the motor has been tuned & how well its been taken care of.

Yep most defiantly....

[Lukezen27]

what Fastfwd is saying is true.
With a high comp motor there is less margin for error.
Low comp motors have a larger margin for error, thus greater reliability.

All comes down to how well the motor has been tuned & how well its been taken care of.

That’s wasn’t really my point as we all know low comp motors are safer for boost… that’s just a fact.
My point was boosting a stock B16 shouldn’t be a problem… for longevity
I ran my stock D16 on 11psi for close to two years redlining all day every day before she blow… and D16 con rods are like little twigs.
Blowing a B16 on only 7psi sounds strange to me as most people consider 10psi on a stock B16’s as safe.

Were they stock unopened B16s that blow at 7psi FastFwd?

[FastFwd]

I ran my stock D16 on 11psi for close to two years redlining all day every day before she blow… and D16 con rods are like little twigs.

Were they stock unopened B16s that blow at 7psi FastFwd?

Yeh mine was stock...engine had low k's also.

Remember a motor doesnt have to break from the rods snapping. The usual case is the crank bearings failing causing a mess of the pistons hitting the head and the bearings shredding the crank shaft.

[Lukezen27]

Yeh mine was stock...engine had low k's also.

Remember a motor doesnt have to break from the rods snapping. The usual case is the crank bearings failing causing a mess of the pistons hitting the head and the bearings shredding the crank shaft.

bugger!

[Limbo]

depends on the turbo being used also.
a TD04e is actually very large, so 7psi is actually more than 10PSI on a T28.

since most people use a T28, they naturally say 10PSI is fine......
abit of oversimplification

That’s wasn’t really my point as we all know low comp motors are safer for boost… that’s just a fact.
My point was boosting a stock B16 shouldn’t be a problem… for longevity
I ran my stock D16 on 11psi for close to two years redlining all day every day before she blow… and D16 con rods are like little twigs.
Blowing a B16 on only 7psi sounds strange to me as most people consider 10psi on a stock B16’s as safe.

Were they stock unopened B16s that blow at 7psi FastFwd?

[FastFwd]

depends on the turbo being used also.
a TD04e is actually very large, so 7psi is actually more than 10PSI on a T28.

since most people use a T28, they naturally say 10PSI is fine......
abit of oversimplification

Yeah i've been trying to find a reason why my motor blew that night and so far thats what ive come to also. My t04e is a massive turbo, very laggy but when boost came on it was solid. So solid in fact that it might have bee just to much to handle...where others have run gt28 setups all day long and have not had a problem.

I overcompensated ahh oh well it was a long time ago and ive learnt from it. just cant wait till im hitting 20psi in a couple weeks. I've never heard a honda spool over 10psi.

[Lukezen27]

Yeah i've been trying to find a reason why my motor blew that night and so far thats what ive come to also. My t04e is a massive turbo, very laggy but when boost came on it was solid. So solid in fact that it might have bee just to much to handle...where others have run gt28 setups all day long and have not had a problem.

I overcompensated ahh oh well it was a long time ago and ive learnt from it. just cant wait till im hitting 20psi in a couple weeks. I've never heard a honda spool over 10psi.

Yeah 20psi going to be fully sick

[destrukshn]

Yeah 20psi going to be fully sick

wheel spin galore my friend.
lol
i can break traction in 4th on cold days/nights, on 16psi.
on toyo t1s tyres.
that's a b18 though. still.
quite useless.
hahaha.

[FastFwd]

im running stretched 235's on the front. I can put 265 semi slicks if needed but i wont be running 20psi daily drive no chance...will be around 10