My bad i read it wrong. Radiator air scoop help maybe? U def need more tq on the studs and get some arps. Use some permatex gasket sealant on the water holes of the mls. 21psi from twin gt45 is some serious power. That big block was making 1200+ on 6lbs and that camaro was making a little less than the big block but it moved out too. So im sure ur knocking on dart block rangel.

 

Yeah man, wtf posessed you to jump from 6psi to 21psi? there are like, 15 other psi's you could've stopped on. Honestly throw some fel pro 9333's ($20 a pop) and studs on there and set your boost at 10-12 and enjoy your 600-700hp for christs sake. Guys have made over 1000hp with those parts store fel pros. Just don't spark knock them or they will let go for good unlock your mls's. Make a nice consevative tune and have fun with you're low 10sec street car.

 

Ef the MLS gasket, do what Jared suggested. I see them actually last stronger without leaks on the street. Technically you need a micro finish to run MLS gaskets on the block and head.

 

....sounds like you stretched the head studs and are leaking by the gaskets when you add cylinder pressure via boost. new studs, gaskets, and turning it down. almost sounds like your tune is off. of course it was tuned for 10psi or less and with the timing as high and aggressive it was I am surprised it didnt torch other things

 

What possessed me to jump to 21psi the godly amount of power this thing made. I dont have a boost controller yet. I dont have any sentimental attachment to the short block as I did not build it so I disconnected the wastegates to see what kinda power it would make. I tuned it a bit on the MS2 and was smoking the tires at 100mph+. The car wasnt leaning at all and my tune was fine (despite of what people are saying about my timing) I think many factors come into play with timing. I was on 100 octane + meth.

It was pretty much the best feeling in the world to feel that kinda power outa something I threw together, then bam water everywhere lol anyways


My MLS gaskets work fantastic on the stret, I actually coated them with that copper spray stuff a couple times, (maybe thats why no micro finish needed)

Anyways, I ordered studs, gaskets and a better torque wrench lol. Should be a fun couple of weeks. Ill probably get a boost controller so I can put 10-12 PSI to it

Manic67 I dont know what your talking about 10psi or less tune, I dont have specific tunes like that I just tune my car as I go, MS software is pretty amazing sometimes I just let it tune itself when Im driving around lol

 

cool keep us updated. And vids never hurt either

 

Yeah, I think you can safely ignore that little nugget of wisdom. (You overstretched the studs by... not enough torque? Or something? I don't even...)

 

^ Tell me about it, Jared Ill post some pics up as I tear it down, see what kinda good input I can get. I need to find a good budget boost controller

 

What kind of wastegates? You might just find some wastegate springs cheap. Or buy a cheesey manual boost controller. Or make one DIY for like $5

 

Hey Jered! Im cheap but damn DIY or manual? lol I was thinking like 3-400 price range cheap lol. I mix my china parts, while I have lots of love for the lil Asian dudes welding up radiators and building turbos in China, stuff like valves, springs, retainers, and Waste-gates I buy U.S. (Apparently not head studs though ) hahaha

I run 2 precision gates with 2 springs, I actually may have a whole set of springs they come with, but sometimes you just have to disconnect a waste gate hose and boost the night away like Cinderella till your glass ford block brakes lol

 

Well if you're looking 10-12 psi and you've got springs, run with it. And there aint nothin wrong with MBC's homemade or otherwise.
I've had some fun and blown som HG's with DIY MBC's. They make consistent, free boost!

 

Talking about a tune, no bullshit I had a t-trim on my coupe before I built my motor and when I put it on the dyno it hit 14:1 a/f before 5k.

The dyno operator was waving his hands like crazy screaming to let out and I did to see what the fuss was about. Needless to say 15-17 psi on a stock block with afr205 heads, f cam and rpm2 intake that car made 430ish under 5k and lived being lean for a long time. Actually I never popped a piston or anything ended up floating valves and bending push rods.

Say what you want but I swear by method injection and its the only reason anyone can suggest it lived.

 

Meth Injection is amazing thats a pretty awesome story what block where you making that 430 with and was it whp? and through a 5spd or auto?

Thats a lot of boost too..... maybe I should try something like 15 if you could do it with a stocker block lol

Pretty funny

 

That was a short block with the topend listed above.

430 rwhp was at 5k or less as the guy running the dyno stopped me I typically shifted at 6500. LOL

Not saying try it and I wouldn't tune a car that away but I bought that one like that, beat the hell out of it and it lived.

 

Haha Epic dude lol thats really funny lol I love cars that can take a beating lol

 

So Todays the day....I tear it down and we find out who is correct. Im going with the lifted head theory, but only one way to find out.

I dont think I even know what a lifted head would look like lol

 

why not use the ms2 boost control function?

 

You will look for traces of combustion gases escaping to coolant Ports. Almost like a snail trail. Post up pics of the gaskets and head/deck.

 

Sooo- what did you find? Oh yeah, a mosquito fogger is when the car smokes so bad it keeps the bugs away lol.

 

Well I went ahead and took the top end apart yesterday. Looks almost everyone was right lol.

For starters the intake gasket was drenched in oil and coolant as if it had not even attempted to seal. A friend of mine used some copper sealant (like the had gaskets stuff) on the intake gaskets and I think this might have been fail number 1. The gaskets appeared to have not stuck at all.

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The studs where only torqued to 80ft founds, and I know someone mentioned I may need to get some ARP studs and torque them to 110 or so.

Secondly, i does appear that I have blown a gasket but it is harder to tell with MLS gaskets, however as bgJ mentioned you can see gases and the gaskets to appear to have been leaking as you can see black marks running out them.

All in all not to long a day, I did end up dropping the heads off a a machine shop yesterday to check to make sure they where no warped. I checked them with a straight edge but I also wanted to fix a thread I noticed is somewhat stripping on the head.

So know, I am tempted to build a Dart bottom end because I am not sure if I will be able to put down real boost to this set up.

Can the studs have been the culprate for the gasket leaking? Has anyone ever run 20pounds of boost on a stock block budget and what did they use to keep the heads from lifting their skirts like street corner girls lol

I want to be able to run that level of boost, I heard that ford guys can possibly run 9/16 studs, but no on stock blocks. Im just curious to know what kinda boost people have put down on stock blocks and what gaskets studs and ft lbs was everything set to.

I was looking at a Chevy head yesterday at the machine shop and I felt like a fat girl looking at a supermodel magazine. A set of pro topline heads but the stock heads have enough holes for studs to keep he foundation of my house down.

Im a ford guy but what a shitty design compared to Chevy.

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