Driving+Overboost+Chainsaw=Blown?
03-14-03, 06:26 PM
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Driving+Overboost+Chainsaw=Blown?
running the past couple days and mapped it real rich, but my boost controller isnt working and its overboosting (up to 1.5 bar!) but its only short and I back it off (trying to tune it). Then I boosted it again and it seemed like it lost all power. Took it out later, hard to start, low vac, but it still boosts like crazy and makes power. Sounds way different now though 
I think its blown, but it still makes good power and spools the turbo the same.
Boosted 1.67Kg/cm2 max, on 91 gas, on s5 turbo, on a jspec, boost controller wasn't working right It handled that though, then I boosted later like 1.1kg/cm2 and it ran outta power. I drove it around alot real real before all of this all day rich (10/11-1) and I think its carboned out, sprayed some water down it at 3k in the yard and cleaned out the plugs, all kinds of black crud on plugs.
It ran way better and started up better after the water and plug cleaning. But I am kinda scared still
I think its blown, but it still makes good power and spools the turbo the same. Boosted 1.67Kg/cm2 max, on 91 gas, on s5 turbo, on a jspec, boost controller wasn't working right
It handled that though, then I boosted later like 1.1kg/cm2 and it ran outta power. I drove it around alot real real before all of this all day rich (10/11-1) and I think its carboned out, sprayed some water down it at 3k in the yard and cleaned out the plugs, all kinds of black crud on plugs.It ran way better and started up better after the water and plug cleaning. But I am kinda scared still
03-15-03, 10:32 AM
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Engine, Not Motor
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Originally posted by M5150
try some ATF
try some ATF
Are you sure an intercooler pipe didn't pop off or crack? Of course, a compression check will be a 100% indicator of internal engine condition.
03-15-03, 04:58 PM
#6
Yea I thought about this today, I think you may have just blown off an ic connection. You said you are still getting plenty of boost, right? If the engine blows an apex seal will chew threw the turbo too, so you wouldn't be seeing that much boost. As mentioned do a comp test....
03-15-03, 05:17 PM
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It boosts fine, idles pretty good for being so rich. So boost hoses blew off though, fixed all of that before we boosted that high.
Do you know what it is like at 25psi? Oh my god, i think the car just feels slow after 25psi, I can't believe it held together, my mad tuning skillz
Its hard to be careful, the car wants to go, i can't accelerate without boosting, and a boost controller hose blew off.
Was Racing a ls1 camaro from about 60, we were about even to 80 when all of a sudden I walked about 6 car lengths on him, peak hold on avc-r told me I hit almost 1.7km/cm2
Do you know what it is like at 25psi? Oh my god, i think the car just feels slow after 25psi, I can't believe it held together, my mad tuning skillz
Its hard to be careful, the car wants to go, i can't accelerate without boosting, and a boost controller hose blew off.
Was Racing a ls1 camaro from about 60, we were about even to 80 when all of a sudden I walked about 6 car lengths on him, peak hold on avc-r told me I hit almost 1.7km/cm2
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03-15-03, 05:18 PM
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It boosts fine, idles pretty good for being so rich. So boost hoses blew off though, fixed all of that before we boosted that high.
Do you know what it is like at 25psi? Oh my god, i think the car just feels slow after 25psi, I can't believe it held together, my mad tuning skillz
Its hard to be careful, the car wants to go, i can't accelerate without boosting, and a boost controller hose blew off.
Was Racing a ls1 camaro from about 60, we were about even to 80 when all of a sudden I walked about 6 car lengths on him, peak hold on avc-r told me I hit almost 1.7km/cm2
I think the car might be fine, not sure, getting like 40mmHg at idle which was what I was getting more.
Do you know what it is like at 25psi? Oh my god, i think the car just feels slow after 25psi, I can't believe it held together, my mad tuning skillz
Its hard to be careful, the car wants to go, i can't accelerate without boosting, and a boost controller hose blew off.
Was Racing a ls1 camaro from about 60, we were about even to 80 when all of a sudden I walked about 6 car lengths on him, peak hold on avc-r told me I hit almost 1.7km/cm2
I think the car might be fine, not sure, getting like 40mmHg at idle which was what I was getting more.
03-15-03, 06:09 PM
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Originally posted by Aaron Cake
Why in the hell would you do that?!?
Why in the hell would you do that?!?
Originally posted by 1Revvin7
Yea I thought about this today, I think you may have just blown off an ic connection. You said you are still getting plenty of boost, right? If the engine blows an apex seal will chew threw the turbo too, so you wouldn't be seeing that much boost. As mentioned do a comp test....
Yea I thought about this today, I think you may have just blown off an ic connection. You said you are still getting plenty of boost, right? If the engine blows an apex seal will chew threw the turbo too, so you wouldn't be seeing that much boost. As mentioned do a comp test....
03-15-03, 10:34 PM
#10
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no, if any seals got stuck with carbon, which happened to my friend, it wouldnt want to start, and when it did it sounded like a chainsaw, he left some ATF in overnight, and it started and ran fine. so ya, ATF is the solution to stuck seals in a rotary
03-16-03, 10:25 AM
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