Why did I over boost? 23 psi!!!
01-16-07, 07:40 PM
#77
thanks Bryant
hey Mike what's up!
I already called Steve
. I told him that I'd be heading up to RnR after I get all of my body work done. Should be around March. It seemed that people (not person) thought my FD was a bumper car from an amusement park or something. My car got hit 3 times in the last year and half. Each hit was more than a 1k of damage.
This is the last one:
some chick here at work hit it while pulling out of a parking spot. And she had her truck backed in already. All she had to do was pull out straight
Luckily one of my friends here at work saw the whole thing so she had to fess up. Honestly I think she would had bounced because she told me she had insurance (she didn't), and my insurance company had a hell of a time in finding her (it seemed that she was hiding from them) until I reminded them that I work with her. :duh:
Originally Posted by mdpalmer
Elliot!!!! Noooooooo! 
Man I'm so bummed to hear of your misfortune. Keep us updated on what you find out about the nature of the failure (wastegate line coming undone, etc.). I know you've had a strong motor for a good while thanks to Steve and R&R.
FWIW, this could have happened to ANY turbocharged engine, not just a rotary! Good luck and let us know what happens, we'll keep our fingers crossed for you!
Man I'm so bummed to hear of your misfortune. Keep us updated on what you find out about the nature of the failure (wastegate line coming undone, etc.). I know you've had a strong motor for a good while thanks to Steve and R&R.
FWIW, this could have happened to ANY turbocharged engine, not just a rotary! Good luck and let us know what happens, we'll keep our fingers crossed for you!
hey Mike what's up!
I already called Steve
. I told him that I'd be heading up to RnR after I get all of my body work done. Should be around March. It seemed that people (not person) thought my FD was a bumper car from an amusement park or something. My car got hit 3 times in the last year and half. Each hit was more than a 1k of damage. This is the last one:
some chick here at work hit it while pulling out of a parking spot. And she had her truck backed in already. All she had to do was pull out straight
Luckily one of my friends here at work saw the whole thing so she had to fess up. Honestly I think she would had bounced because she told me she had insurance (she didn't), and my insurance company had a hell of a time in finding her (it seemed that she was hiding from them) until I reminded them that I work with her. :duh:
Last edited by Montego; 01-16-07 at 07:47 PM.
01-16-07, 08:14 PM
#80
Originally Posted by GoodfellaFD3S
99% of women can't drive. You should slap that dumb beeyatch for being shady
99% of women can't drive. You should slap that dumb beeyatch for being shady
I'm serious all she had to do was put the truck in D and pull out straight. Since that parking spot that she was in leads directly to the street.
whatever spilled milk now
01-16-07, 10:19 PM
#82
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Everytime I boost I look at the AFR. If it starts leaning out (which has never happened), I would take my foot off the gas immediately. I think it's way better than looking at boost psi.
01-17-07, 11:04 AM
#83
so what happens if you are looking at your A/F and something unexpectedly is ahead of you?
I think that 100% watching of the system everytime one WOT's is rather dangerous and unrealistic. If that's what is needed to keep the car from blowing up it would have a for sale sign in a heart beat. Luckily it's not
I think that 100% watching of the system everytime one WOT's is rather dangerous and unrealistic. If that's what is needed to keep the car from blowing up it would have a for sale sign in a heart beat. Luckily it's not
Last edited by Montego; 01-17-07 at 11:16 AM.
that's all I gotta say. Other than who ever would take those pics would probably need a few therapy sessions to just get over the shock.
01-17-07, 12:07 PM
#87
Originally Posted by alexdimen
So, where would you install that pop-off valve?
This was the main reason I went with the Pettit Limited ECU to make sure I still had fuel cut at some point.
01-17-07, 05:53 PM
#88
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Man, this brings back memories... I did pretty close to the same damn thing about 2 years ago. Was working on the car, put a slightly bigger pill in the w/g line (to lower the boost), didn't blow thru the line after I put the pill in (it got cocked off to the side and blocked the line), went WOT in 2nd to check primary, transition and secondary boost. Primary hit about 15psi before the transition, transition was lightning quick with no psi drop and secondary came on full bore... pegged the boost gauge at 20psi and it pinged hard before I could even back out of the throttle. But just before it let go, it was SO effing fast. Haha.
Keep your chin up... it's not that bad. A quick rebuild and you are back in the game.
Keep your chin up... it's not that bad. A quick rebuild and you are back in the game.
01-17-07, 10:34 PM
#89
Originally Posted by GoodfellaFD3S
Thank God for water injection . I recently saw 23 psi on pump fuel with my 500R because I didn't change my dipswitch settings (of all things) hidden on the back of my profec B. The setting for internal wg is different than the setting for external wg, and I found out the hard way. Motor took it like a champ, so I can joke about it now, lesson learned
. I recently saw 23 psi on pump fuel with my 500R because I didn't change my dipswitch settings (of all things) hidden on the back of my profec B. The setting for internal wg is different than the setting for external wg, and I found out the hard way. Motor took it like a champ, so I can joke about it now, lesson learned hell yea, i had a similar problem after fixing the first cracked iron, decided to fix an issue with my wastegate flapper and turned the boost controller down to compensate. long story short i didn't turn it down enough and the boost spiked since it was holding better and cracked another rear iron so on went the AI! water/meth ftw!
watching your wideband won't cure this issue, boost spikes occur so randomly and so quick that by the time you let your foot off the gas the damage is already done.
on the upside, i bet it pulled like a som'n'bitch for that one pull.
01-18-07, 05:54 PM
#90
Original Gangster/Rotary!
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Originally Posted by Karack
on the upside, i bet it pulled like a som'n'bitch for that one pull.
07-28-08, 10:55 PM
#91
For the win...
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Setup was pretty simple. In this position, I had easy access to the inside nut placement for the mounting bolts, through the intercooler opening. I used a small piece of rubber to mash between the pop off valve and the exterior of the intercooler.
Once it was installed, it was a simple matter of adjusting the screw valve on the outside for the desired boost level. I think it came set at 13psi, and I adjusted it to 17psi. When it reaches the desired boost level, it flutters open and closed to quickly bleed the air off.
I plan to place some tape over the relief area, so I can tell if it's ever vented.
Here's to never seeing a boost spike again!
-R4tw
07-29-08, 02:14 AM
#93
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it is pretty dangerous looking at gauges and not the road all the time, keeping an eye on your AFR/Boost/Temps etc, that's why it's a lot safer to just listen to the beeping "warning" sound before it's too late. Set the warning to a lower setting so you have a few seconds to react and lift your foot off the accelerator before something pops. Also a flashing "caution" light is a good idea too because sometimes the car is just so loud its hard to hear anything during WOT, so if you see something flashing, stop what you're doing and check the readings!!
07-29-08, 02:52 AM
#94
Call me gramps!
BOOM!!! said my motor on Friday night.
This is really disheartning actually. Do all the mods correctly, always make sure that there is enough fuel for the given boost. Yet out of the blue on a cold night I overboost by 13 psi!
Friday night I was taking my friend out to his house. On the on ramp to the freeway I WOT in third (I always do that there). Boost controller set to 10 psi. After the boost kicked and mid way through 3rd my car fell flat on it's face. I knew the car was blown. I cycled to see what my peak boost was and my profecB recorded 22.6 psi! my power FC hit a peak of 17 psi!!! WTF on stock turbos???
I don't get it.
my mods are
Mild Streetport
CAI
PFS SMIC
DP
MP
RB catback
Greedy boost controller
Power FC
STOCK TURBOS
low boost 10 psi
high boost 12 psi.
I always thought i'd be safe as long as I stay near stock levels with stock turbos. Guess not.
Seriously contemplating LS1 after this one. I've been an owner for almost 9 years and it's my second engine under my belt, and fire that totalled my first FD.
This is really disheartning actually. Do all the mods correctly, always make sure that there is enough fuel for the given boost. Yet out of the blue on a cold night I overboost by 13 psi!
Friday night I was taking my friend out to his house. On the on ramp to the freeway I WOT in third (I always do that there). Boost controller set to 10 psi. After the boost kicked and mid way through 3rd my car fell flat on it's face. I knew the car was blown. I cycled to see what my peak boost was and my profecB recorded 22.6 psi! my power FC hit a peak of 17 psi!!! WTF on stock turbos???
I don't get it.
my mods are
Mild Streetport
CAI
PFS SMIC
DP
MP
RB catback
Greedy boost controller
Power FC
STOCK TURBOS
low boost 10 psi
high boost 12 psi.
I always thought i'd be safe as long as I stay near stock levels with stock turbos. Guess not.
Seriously contemplating LS1 after this one. I've been an owner for almost 9 years and it's my second engine under my belt, and fire that totalled my first FD.
As others have said before, it could be a failing boost controller, bad wastegate, or a combination of the both. I really regret never installing a pop-off valve, but that would be the safest bet, IMO.
As to doing the LS1 swap -- it's really a lot more economical in the long run, granted you keep your car for a while.
07-29-08, 10:09 AM
#95
ive seen 17psi before....put it in third and punched it noticed the car was ***** faster..I was rapping my friends tuned non-seq on my seq through some curves. Then I took a look at the primary turbo spool up and noticed it spooled as high as I wanted it too as long as I kept the gas down and the PRofec was going nuts.
Pull into my drive way and my vaccuum cap had split down the middle to cap off the wastegate solenoid on the backside!
Pull into my drive way and my vaccuum cap had split down the middle to cap off the wastegate solenoid on the backside!
07-29-08, 03:04 PM
#96
A dramatic overboost is what caused my desire to start a LS1 swap. In my case, it was a faulty MBC which caused the situation.
As others have said before, it could be a failing boost controller, bad wastegate, or a combination of the both. I really regret never installing a pop-off valve, but that would be the safest bet, IMO.
As to doing the LS1 swap -- it's really a lot more economical in the long run, granted you keep your car for a while.
As others have said before, it could be a failing boost controller, bad wastegate, or a combination of the both. I really regret never installing a pop-off valve, but that would be the safest bet, IMO.
As to doing the LS1 swap -- it's really a lot more economical in the long run, granted you keep your car for a while.
yeah I hear that. Well my car has been in the shop for the last 8 months... I think all the kinks have gotten ironed out.
I stayed rotary, went single turbo, got a pop off valve, 3 bar map sensor, before my final tune I will have AI installed, and fuel cut will be implemented. A blown engine due to an overboost problem will not happen to me again.
