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Turbo Dodge Help Urgent help when something goes wrong with your Dodge and you can't figure out what the problem is. Troubleshooting help and the place to post when you're stuck with a broken car and have to get to work the next day.

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Old 10-24-2012, 09:38 PM   #1
Too much boost?  
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I was driving my car today and got on it pretty hard. Drove great and everything but when I let off the throttle in 5th there was a big cloud of white smoke behind me. I didnt lose power or anything and my temp gauge didnt go up any so I finished driving home and checked it out. There was coolant on the block across the front side just under the head. Is it possible that the head lifted off the block from too much boost? The gauge read about 15-17. There is no water in my oil or anything
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Old 10-25-2012, 05:58 AM   #2
Re: Too much boost?  
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Pressure test the cooling system
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Old 11-06-2012, 05:22 PM   #3
Re: Too much boost?  
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I finally got time and tried pressure testing it and it was fine
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Old 11-06-2012, 05:24 PM   #4
Re: Too much boost?  
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Have you lost coolant since the first incident and is the smoke still present?
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Old 11-06-2012, 06:57 PM   #5
Re: Too much boost?  
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Coolant level was fine till I pressure tested it. I sprung a leak at the top radiator hose. But the coolant was topped off. I havent driven the car in a while tho. Ive been too busy with school
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Old 11-07-2012, 08:05 PM   #6
Re: Too much boost?  
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well, something had to occur to cause coolant to appear on the front of the engine(unless it was there from previous work) how much boost were/are you running? headbolts or studs? try retorquing the head down see if that helps. also what head gasket are you running?
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Old 11-07-2012, 09:00 PM   #7
Re: Too much boost?  
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The Fwdperformance calibration is set to 15psi but its getting up to about 15-17psi. Im using head bolts and its a mopar performance head gasket
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Old 11-08-2012, 01:09 AM   #8
Re: Too much boost?  
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remember when i lifted the head on my charger beating on it at your house? when i poped the hood and there was coolant seeping out from the gasket between the block and head? that sounds like what you did, i agree with onerippenturbo1 your prolly got a lose head and your gonna need to tighten or replace the bolts,
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Old 11-12-2012, 02:12 PM   #9
Re: Too much boost?  
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Should I make sure they are to the torque specs or should I snug them up a little more?
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Old 11-13-2012, 07:04 AM   #10
Re: Too much boost?  
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Unless you are using ARP Studs torque the headbolts to factory specs using the 4 step torque procedure.
The headbolts are torque to yield one time use so if you cannot reach 90 ft lbs on the last 1/4 turn the bolt needs to be replaced.

Be sure the threads in the block are clean, run a tap or thread chaser to be sure the bolts do not bind and give you a false torque reading.
You should be able to run them in by hand.



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Old 11-13-2012, 07:59 AM   #11
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Quote:
Originally Posted by Moparman1991 View Post
The Fwdperformance calibration is set to 15psi but its getting up to about 15-17psi. Im using head bolts and its a mopar performance head gasket
Stop going over 15psi. 2 bar computer will NOT add fuel beyond 15psi and you will blow it up.

Use a MBC and set the boost at 13psi and leave 2psi for weather changes and safety.
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Old 11-17-2012, 08:27 PM   #12
Re: Too much boost?  
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The computer is set to 15.. but every once in a while itll go over by about 2 or 3. thats usually when it happens
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Old 11-18-2012, 12:41 AM   #13
Re: Too much boost?  
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Originally Posted by Moparman1991 View Post
The computer is set to 15.. but every once in a while itll go over by about 2 or 3. thats usually when it happens
dude you need to turn your boost down, no other way around it, just turn it down to about 12 to 13 and let it go, dont set it at the limit or your gonna be pulling the head to replace things
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Old 11-18-2012, 01:42 AM   #14
Re: Too much boost?  
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Quote:
Originally Posted by Moparman1991 View Post
Coolant level was fine till I pressure tested it. I sprung a leak at the top radiator hose. But the coolant was topped off. I havent driven the car in a while tho. Ive been too busy with school
are you sure the smoke you saw came from the tailpipe ? or did it possiablely come out from under the car ?

thinkin maybe that rad hose opened up just a little while you were driveing it
- then press testing opened it up again but more so

when the head gasket went on my car it went as I was leaveing a stoplight
I noticed a BIG cloud behind me - thick enough no traffic followed me into the intersection
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