CitySnake
Enthusiast
Geeze D...just buy Twinviper's car already and save yourself all the trouble!
Car is Tickin and Idles Rough
- Thread starter Dimitrios
- Start date
Dimitrios
Enthusiast
actually was thinkin about vinnys DLM on ebay for $80K but i so love mine..we've been thru alot together..
I am really sorry for you Dimitrios.
Dimitrios, your case makes me remember a friend who had the SAME trouble. I do remember that in NJ your viper was already smoking while accelerating (too rich) and while breaking (blow by). We even had a look on that heavily modified yellow Viper to check his crankcase ventillation.
Low octane fuel (91 oct) + Blow by (oil in intake) + carbon fouled cylinders + summer temperature + high RPM (above 5000rpm) => 100% chance of dead for the engin.
The problem with the blow by is that the oil in the intake dramatically reduces the Fuel octane level. For instance even if you use 93oct fuel, the oil will drop the octane level to 90 !!! It happens so suddenly that you have no time to lift your feet from the accelerator and you engin is dead.
Unfortunately when all this happens there is nothing to do except to fix the engin and LEARN. Make some overtime at work and have your engin rebuilt: Forged pistons and blue printed engin. Stay away from modified cams.
Another note: My viper was not the most powerfull on that hot spring day but was the most reliable.
Dimitrios, your case makes me remember a friend who had the SAME trouble. I do remember that in NJ your viper was already smoking while accelerating (too rich) and while breaking (blow by). We even had a look on that heavily modified yellow Viper to check his crankcase ventillation.
Low octane fuel (91 oct) + Blow by (oil in intake) + carbon fouled cylinders + summer temperature + high RPM (above 5000rpm) => 100% chance of dead for the engin.
The problem with the blow by is that the oil in the intake dramatically reduces the Fuel octane level. For instance even if you use 93oct fuel, the oil will drop the octane level to 90 !!! It happens so suddenly that you have no time to lift your feet from the accelerator and you engin is dead.
Unfortunately when all this happens there is nothing to do except to fix the engin and LEARN. Make some overtime at work and have your engin rebuilt: Forged pistons and blue printed engin. Stay away from modified cams.
Another note: My viper was not the most powerfull on that hot spring day but was the most reliable.
Simms
Enthusiast
I have Diamond forged pistons in my car. Awesome quality.
dansauto
Enthusiast
so did you crack a piston?
Dimitrios
Enthusiast
Tator said it was the pistons. replacing them with diamond forged pistons.
v10kingsnake
Viper Owner
good luck D, I hope it only taps your pocket for gas money from here on out.
Viper Wizard
Enthusiast
Broken rings! It wont be a creampuff anymore when I get done with it!
dansauto
Enthusiast
From his prior posts it sounded like rings, hence all the blow by
Broken rings? I am assuming you mean compression rings and not landrings? If he cracked rings, chances are he had inaudible detonation for quite a while... compression rings are really just springs, and when overheated from detonation, lose their heat-treat and become brittle, and often lose their "spring" as well, taking on the size of the cylinder and allowing blow-by.
Dimitrios
Enthusiast
ok just ordered diamond pistons, 10lbs pulley, idle pulley, Roe Racing valve cover breather(Roe's version of a catch can)and smaller belt from Sean Roe at roeracing.com. Chuck Tator is also installing a 96 mopar cam which Sean also recommends. ROE said it should be at the 700RWHP without the ported heads. veryone here has been a great help and thank yo guys so much. I cant wait!!!! I'll keep you guys posted.
Dimitrios
Enthusiast
UPDATE: chuck tator took the motor apart and found 5 cracked pistons. he said that this will go in his record book for most pistons broken. anyways i ordered diamond forged pistons, 10lb pulley, 708 mopar cam and roe cylinder heads. roe said car should be at 700rwhp with this set up. cant wait to get it in 2 weeks.
Cal Cobra
Viper Owner
Dimirtios,
Just curious, what year is your Viper?
Cal
Just curious, what year is your Viper?
Cal
Dimitrios
Enthusiast
2001
tim721
Enthusiast
cant wait to see it D, that thing is gonna come back a MONSTER 
CitySnake
Enthusiast
Dimitrios
Enthusiast
i did....they now say 800HP
ACR steve
Enthusiast
maybe if you stop babying your it would not be broken 
Damn you kicked my ass with 5 broken pistons, now you will have to give me a couple of car lenghts if you ever want to line up with me again or I may sick MAD DOG BIRD on you
Damn you kicked my ass with 5 broken pistons, now you will have to give me a couple of car lenghts if you ever want to line up with me again or I may sick MAD DOG BIRD on youACR steve
Enthusiast
maybe if you stop babying your it would not be broken Damn you kicked my ass with 5 broken pistons, now you will have to give me a couple of car lengths if you ever want to line up with me again or I may sick MAD DOG BIRD on you
Damn you kicked my ass with 5 broken pistons, now you will have to give me a couple of car lengths if you ever want to line up with me again or I may sick MAD DOG BIRD on youAviP
Enthusiast
You could really scare ACR Steve by changing it to 550HPV5.
BlueGTS
Viper Owner
800! At least this time you will have some time to grow into your plate.
Dimitrios
Enthusiast
ha yeah steve 5 pistons..i knew there was something wrong. anyway im suppose to pick it up the day of tators tech session and drive back with you guys. i cant wait to feel 700rwhp. i thought 550was alot...
VIPER D
Viper Owner
d are you going to install an afr gauge????
vd..
vd..
Dimitrios
Enthusiast
prob not just boost..
Viper Wizard
Enthusiast
I'm hoping it will be done by then? You are going to have to do a break-in on a new motor!! You will not feel that 700HP till you do a SLOW 1000 miles first! Sorry
v10kingsnake
Viper Owner
hey D, if thats the case, you wanna race that day when we pick up our cars from tators. figure itis my only chance to embarrass a monster like yours is during the break-in. lol. can't wait to see your ride in person. bet you can't either.
I'm hoping it will be done by then? You are going to have to do a break-in on a new motor!! You will not feel that 700HP till you do a SLOW 1000 miles first! Sorry
Dimitrios
Enthusiast
so seen my car today after 7 long weeks and chuck gave me the ok to started it up. it sounded ridiculous. the rumble and sound of the cam was awesome. needs minor tuning and road testing before i pick her up. will get dyno numbers shortly.
