2nd run on street, lifted the heads/ smoked both h gaskets - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 20 Old 04-13-2007, 08:50 PM Thread Starter
 
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2nd run on street, lifted the heads/ smoked both h gaskets

yep well today went from good to bad to ugly, got all the header gasket leaks fixed and down pipe leaks, and oil burning stoped, got into it in second gear showing this guy whats up, and right as soon as i got in the power band(4500 rpm) pow lifted the heads and blew both head gaskets, coolant was dripping out the turbo the wastegate crossover everything, everyplug was soaked damn, then sliced my hand wide open in 2 spots

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post #2 of 20 Old 04-13-2007, 09:08 PM
 
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how much boost

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post #3 of 20 Old 04-13-2007, 09:13 PM
 
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i seen in your other post your running 10 psi and 22 total timing. thats all good but what are you AFR's sounds lean as hell to me.
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post #4 of 20 Old 04-13-2007, 09:40 PM
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Damn dude, that sucks! What HG's are you using?

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post #5 of 20 Old 04-14-2007, 09:51 AM
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what is your a/f ratio?

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post #6 of 20 Old 04-14-2007, 12:36 PM Thread Starter
 
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i watched the wideband and right before it went it was reading 10.2, wich is a lil rich, it was 10 psi, 6 *degrees at distributor, it took off and as soon as it reached the motors power(4500rpm) poof, im running felpro 1011-1 s and arp head bolts, now if i get commetics head gaskets and head studs, and this condition happens again, ill lose a piston or throw a rod correct??, my compression is like 165-175 on all cylinders which i think is 9.5/1, this thing should be able to handle 10 psi, i dont know what direction to go again, i had coolant come out of every spark plug hole, ill see what it looks like next week when i tear it down and ill post some pics so u guys can hopefully help me out
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post #7 of 20 Old 04-14-2007, 07:48 PM
 
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10 .2 is way too rich i would lean it out a lil. 11.5 is where you want to be and it seems you didnt have enough timing for the amount of fuel you were running. So here is what i would do put new headgaskets in lower the boost to 6 psi and lean it out and get your timing right, and once you get the car all dialed in at 6 psi then start adding boost and fuel." baby steps first".
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post #8 of 20 Old 04-14-2007, 10:20 PM Thread Starter
 
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someone also told me that my .68 exhaust housing is to small for my setup and could possibly be chokeing my motor causing pre-ignition and detonation(blown hg s), they said .68 is for a stock 5 liter, and i would need a .91, to expell the exhaust quicker cause of my h/c/i, is this true, got this from turbomustangs.com??? now im gonna use a manual boost control and try it 1 psi at a time, could to much fuel and not enuff timing blow the head gaskets too???
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post #9 of 20 Old 04-15-2007, 08:19 AM
 
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I am not exactly sure but you definatly have something wrong with the tunning so i would back the boost down 10 psi is kinda high with the fuel all out of wack. i run a 62mm turbonetics at 6 psi afr is at 12.0 with 24* total timing locked and my car runs like a raped ape. your running 10 psi and cant get passed 4500 rpm's. Whos having more fun?
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post #10 of 20 Old 04-15-2007, 09:27 AM
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That sucks for sure! I know the feeling (very recently). Coolant all over etc etc. for me too. When a headgasket goes like that, it gets ugly fast. I thought two hg must be gone but it was only one.
10 psi is not alot of boost. I think something with the tune is not right. I ran my setup rich like that for a while and actually did not blow any hg. You may want to get some datalogging done on a dyno.
Not sure which felpros those are. Are they the bone stock ones? If so, the metal ring around the cyl is not very strong. The 9333 pt1 are stronger without being a mls gasket. The studs are a good move.
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post #11 of 20 Old 04-15-2007, 09:42 AM
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Some times you just can't help bad luck..
Studs and safer tune...When my engine was stock.. At 10Lb or more, timing was 18* thats with tuned stand alone....To be safe...

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post #12 of 20 Old 04-15-2007, 11:13 AM Thread Starter
 
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im tearing it down again this next weekend and like i said ill post pics of the gaskets, im gonna go bigger exhaust housing, get the injectors checked, and do the manual boost control and set it at 1 psi then floor it and continue to move it up 1 psi at a time, ill run the pt 9333-1, the felpro 1011-1 s i had people on turbomustangs said there junk for boost,and said my housing is too small as well, i was at full boost by 3000 rpm only 3/4 of throttle, the messed up part is my wastegate vents to atmosphere and i can t hear dick if its pinging or not? right before it went it hesitated for a split second, gave me one small buck, and that was all she wrote, plugs didnt look bad just all wet ah ha,i know your having more fun( im surely not having to tear it down again)im a newbie to the turbo scene, ill get it right it just trial and error, but like i said next week, 20 total timing, 1 psi at a time /head gaskets /studs, get my msd 50# s checked/bigger exhaust housing/ a lil more conservative, not being a mad man,...... felpro 1011-1 s are stock ones for afr heads, probably going to jeff s down there at psi in glenburnie for the tune, better take a trailer with me hehehehe, that was strike 1, 2 more and im sellin the kit and going dart 408 big boy all motor
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post #13 of 20 Old 04-15-2007, 11:15 AM Thread Starter
 
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oh and thanks for the help fellas
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post #14 of 20 Old 04-15-2007, 01:57 PM
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You said you are going to put a manual boost controller on it. What are you using now to control boost? If your wastegate has a 10lb. spring in it, a manual boost controller still will not allow you to go below the 10lbs. A mbc will only allow you to raise the boost pressure.
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post #15 of 20 Old 04-15-2007, 04:11 PM Thread Starter
 
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hmmmm looks like ill change the spring then, thanks good lookin
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post #16 of 20 Old 04-15-2007, 06:57 PM
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Quote:
Originally Posted by sprayed88 View Post
hmmmm looks like ill change the spring then, thanks good lookin
you're welcome. But please don't call me good lookin', I'm a happily engaged man! lol
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post #17 of 20 Old 04-15-2007, 08:29 PM Thread Starter
 
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ahaha, nah bro me too, i meant good lookin out for me, sorry for my bad lingo
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post #18 of 20 Old 04-15-2007, 09:27 PM
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yeah, I figured out what you meant after the second time I read it. The first time I read it I was shocked and knew I had to be looking at it wrong. lol
I still had to mess with ya though!
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post #19 of 20 Old 04-22-2007, 01:26 AM
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Sprayed88, sorry to hear about your mishap. I was reading your posts and noticed a couple of things. I've always thought that 1011-1 felpro's are supposed to be used with iron heads and 1011-2's with aluminum heads. I'm not sure if it makes a difference? If you need to take the block back to the machine shop, take the head stud kit with you, otherwise you might opt for the ARP Pro series head bolt kit. I hope you get it back up and running soon.

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post #20 of 20 Old 04-23-2007, 07:32 PM Thread Starter
 
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thanks man ive got some pics of my head gasket in my next post
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