Possible had 25-30 PSI boost - is that possible that the TT GT would survive that?

[Alex911]

Possibly had 25-30 PSI boost - is that possible that the TT GT would survive that?

Well I picked up my car yesterday from the shop - I had a 30 PSI boost gauge and Jason's catback system installed.
1-st I would like to thank Jason and Michael Brito for providing parts of outstanding quality.
The exhaust sound is finally how it should be - not to much louder when inside the car - but outside it is DEMONIC and not only my neighbours but half of Moscow already hates me

I was driving the car for 2 days before I decided to go to an empty highway and see what boost levels I am making (didn't really look at the boost gauge before when driving in the city). When the passenger told me that the gauge was showing 19PSI 1st gear 25 PSI second and 30 in 3rd - I was in shock since I was sure that no one touched the boost adjuster when the car was at the shop. I tried again and saw the same numbers. The boost gauge showed 25-30PSI for a few seconds before I let off the gas.
I have talked to Michael Brito and he gave me a pretty simple Idea on how to check if the boost gauge shows correct information - I will do that tomorrow but right now I can not go to sleep thinking that I was really making that boost. I have turned the manual boost Gauge a few rotations and now the boost levels are about 15 PSI in 1st and 17-18 PSI in 2nd and 3rd.
The car runs fine and I dont really feel that something is wrong - but still - could something be damaged internally from the knock I probably had if I really ran those boost levels and I wouldn't be able to feel it when driving the car? I am really worried.
Is the turbo set up if by mistake fully clocked up capable of doing 25-30 PSI or is there a mechanical maximum that is lower?
Unfortunately I don't have a dyno here to try and use a manual boost gauge - but I will check the 30PSI boost gauge as Michael suggested -plug in an air compressor and set it to 10-15 PSI and see what numbers the boost gauge will show.
Sorry for this emotional post - but I am really freaked that I could have knocked the engine because of some kid at the shop accidentaly twisting the gauge when installing the new exhaust.
Thanks,
Alex!

P.S Spoke to Shelby and he thinks 30 PSI boost sounds unreal - really hope that it is just something wrong with the installation of the Gauge.
I do have a 2nd engine now - but still I hope I will not need to use it so soon

 

[nota4re]

Hi Alex,

There is a calibration procedure that MUST be followed when installing that boost gauge. If you need the instructions - PM me and I will email them to you. I'm hoping that the calibration was simply not perfromed or performed incorrectly.

In case of possibe over-boost, the EASIEST thing to do is to pull the sparkplugs and inspect them. If you were pinging/knocking bad, the damage is going to show up on the sparkplugs too. If the sparkplugs look perfect, you have a good signal. (If it was me, I would do this so that I could sleep!)

Finally, it would be real easy to rig up a mechanical gauge in your engine compartment and place it so that a passenger can see it through the window. This can help you to accurately understand boost levels. Get OFF of the go-pedal if boost is more than what your engine management software is calibrated for.

Wish you the best..

 

[kumar]

on c16 and super super low timing, maybe for a little while

on <100 octane, i seriously doubt it

i'd guess your boost gauge is off

 

[Heffner Performance]

I can tell you for sure that tose turbos will not produce 30 psi. I've tried. Make sure the gauge is calibrated properly and check it again.

 

[freeflyer]

Just a little info on the boost gauge. It does not have a calibration procedure. Every time the ignition is on the gauge auto calibrates. The needle will swing to -30 then back to the zero deadband area.
I think Kendall is referring to the Air Fuel gauge, as this has a calibration procedure.

Michael

 

[Shadowman]

Hi Alex,

There is a calibration procedure that MUST be followed when installing that boost gauge. If you need the instructions - PM me and I will email them to you. I'm hoping that the calibration was simply not perfromed or performed incorrectly.

In case of possibe over-boost, the EASIEST thing to do is to pull the sparkplugs and inspect them. If you were pinging/knocking bad, the damage is going to show up on the sparkplugs too. If the sparkplugs look perfect, you have a good signal. (If it was me, I would do this so that I could sleep!)

Finally, it would be real easy to rig up a mechanical gauge in your engine compartment and place it so that a passenger can see it through the window. This can help you to accurately understand boost levels. Get OFF of the go-pedal if boost is more than what your engine management software is calibrated for.

Wish you the best..

Calibrate the vacuum/boost gauge; how? It is associated with a stand alone MAP and tghe gauge does a sweep every time that the key is cycled; what am I missing.

Are you speaking of the A/F gauge?

Takes care

Shadowman