Felpro 9333 head gasket limit......

[QWKSNKE]

I found the limit on Felpro 9333 yesterday.

Took a co-worker for ride in the 93 yesterday after work. Nice and cold weather. We did two 3rd and 4th gear pulls on a low traffic road. On the last pass I saw 16psi on the boost gauge in 3rd, went into 4th, and BOOM car started making a loud exhaust leak sound. Limped it back to work and we noticed the head gasket fire ring sticking out from under the head on the #3 cylinder

[slvrbullit]

sounds to me like the head lifted if the ring is sticking out from under it.

[QWKSNKE]

should I check the torque on the head nuts before removing it?

[slvrbullit]

I would, are they ARP bolts or studs. Also after you remove them check them for stretch.

[QWKSNKE]

ARP studs

[QWKSNKE]

trying to get motivated to freeze my butt off and go tear it down

[rtusnake]

Thats why I'm glad we have a heated garage:)

[Snowman Tom]

trying to get motivated to freeze my butt off and go tear it down
Hell, you need to. Otherwise, you'll be tearin' my head off again. :P

[coupe]

:( Sorry man. HG's are a pain. But better than the pistons. :yup:

[Wall96cobra]

Seems like you must have had some detonation to do that.

[TheJeanyus]

Hell, you need to. Otherwise, you'll be tearin' my head off again. :P
:rofl:

[QWKSNKE]

Seems like you must have had some detonation to do that.


probably

[Dale McPeters]

I would also bet that the maf is still not correct.....
Hurry up and get that WB done and on the car.....:)

[QWKSNKE]

I would also bet that the maf is still not correct.....
Hurry up and get that WB done and on the car.....:)


:werd:

[banditmwp]

Damn it! I went in my store again and forgot to price you a gasket. I'll try to remember tomorrow. :doh:

[QWKSNKE]

I'll need some Felpro 1250 intake gaskets too :nice:

[banditmwp]

I'll need some Felpro 1250 intake gaskets too :nice:
Gotcha. I know I don't stock those but they're in ATL so they'll be next day. I should have a 9333 in stock though.

[QWKSNKE]

do you stock 1262's?

[Craig K.]

sorry to hear that Lee, as Tommy said I would check those head studs for stretching to be on the safe side.

[slvrbullit]

I would go with a Cometic, I know you said they would not seal with the AFR's but I know 3 people here locally that have AFR's with cometics. I think they sent you the wrong ones. Did you remove the little rivets before installing them? Those will not let them seal.

[banditmwp]

do you stock 1262's?
no. would you rather have them over the 1250's?

[Dale McPeters]

:werd:

:unsure:

[QWKSNKE]

I would go with a Cometic, I know you said they would not seal with the AFR's but I know 3 people here locally that have AFR's with cometics. I think they sent you the wrong ones. Did you remove the little rivets before installing them? Those will not let them seal.

no I did not. there was no need in removing the rivets. they cleared the heads by at least 1/16"

I can't justify spending another $180 on a set of gaskets that only lasted 100 miles (if that) especially when both cometic and AFR say they will not work on the 165 heads because of the extra cooling channel.

The 9333's have done well. I had around 6k miles on them. I think the extra boost I saw the other day is what killed them

[slvrbullit]

Oh thought you had the 185's for some reason.

[Wall96cobra]

The 9333's have done well. I had around 6k miles on them. I think the extra boost I saw the other day is what killed them



I still think it was detonation, boost alone won't do that kind of damage to a head gasket. Plus alot of guys on turbomustangs run those head gaskets with no problem making more boost and more power.

[Dale McPeters]

As do I.....;)
I think that the load calculations are still
off because of the maf causing the EEC to
use the wrong row in the spark tables......:popcorn:

Lee called me werd for that idea though....:jester:

[QWKSNKE]

Lee called me werd for that idea though....:jester:

werd = I agree

:D

[Italian LX]

As do I.....;)
I think that the load calculations are still
off because of the maf causing the EEC to
use the wrong row in the spark tables......:popcorn:
Yeah, I recall someone telling him that we should do some load scale datalogs soon since we have a tune that allows us to log WOT now.... oh well, I guess it's too late for that now. :huh:

[Dale McPeters]

werd = I agree

:D

:lol:

Yeah, I recall someone telling him that we should do some load scale datalogs soon since we have a tune that allows us to log WOT now.... oh well, I guess it's too late for that now. :huh:

:jester:

[coupe]

Can someone describe the "9333" to me? I'm not sure about these gaskets and I am going to be needing something to hold boost. I was going to go with the "Graphite" from Ford.

[QWKSNKE]

its a graphite gasket. Its a good gasket Matt. Like Wall mentioned, it was probably something else that caused the gasket to blow since I was seeing an extra 4 psi of boost compared to the last time we were tuning.

As soon as my wideband gets finished I am going to get it installed and retune again while its cold and making 16 psi

[Shankin]

We use the felpro 1011-2s.

[coupe]

:think:
Shankin, did you have the 1011-2's on the red car? I may stick with them then.

IMO, the cometics seal well, but not for turbo. My theory is they aren't "flexing" or giving under boosted extremes and thus simply blow out across their layers (shich is exactly what I've seen).

[QWKSNKE]

We use the felpro 1011-2s.

you have been lucky then

[gt90stang]

Mine has FelPros now, I think I'd go with ROH, but haven't blown mine yet. Even with detonation...scarry.

Don

[Shankin]

We have made over 700rwhp with 1011-2s. It doesnt matter what gasket you have if you rattle it. I have personally ran 6.36 at 113 on the same gasket and ran the car one full season in the 6.40 range with no problems.The motor is till alive and so are the gaskets in a buddy of mines car.
Also 5.0joe and myself have been 6.20s on nitrous with the same gaskets.

[Shankin]

:think:
Shankin, did you have the 1011-2's on the red car? I may stick with them then.

IMO, the cometics seal well, but not for turbo. My theory is they aren't "flexing" or giving under boosted extremes and thus simply blow out across their layers (shich is exactly what I've seen).

The red car had cometics but you have to have a real flat surface for them to work like they should.

[QWKSNKE]

We have made over 700rwhp with 1011-2s. It doesnt matter what gasket you have if you rattle it. I have personally ran 6.36 at 113 on the same gasket and ran the car one full season in the 6.40 range with no problems.The motor is till alive and so are the gaskets in a buddy of mines car.
Also 5.0joe and myself have been 6.20s on nitrous with the same gaskets.

I was never that fortunate with them and the blower. They did good with the juice. I may have been detonating though. Tried them twice after the procharger install and the fire rings came out egg shaped every time

[coupe]

Well crap. I think I will still try that 9333 then. Does it have a crush-copper ring like the 1011-2? Post a pic next time you install one Lee.

[Shankin]

I may have been detonating though.

More than likely!;)

[QWKSNKE]

Well crap. I think I will still try that 9333 then. Does it have a crush-copper ring like the 1011-2? Post a pic next time you install one Lee.


I'll be picking one up today. Neither gasket has a copper ring though or at least not that I know of

[coupe]

1011-1 has a steel-ring. 1011-2 has a copper ring (thus softer "crush" for aluminum heads).

[nxcoupe]

I just put some cometics on my new engine, and the rivets clear the heads on the front and rear. Did I miss something?

[QWKSNKE]

1011-1 has a steel-ring. 1011-2 has a copper ring (thus softer "crush" for aluminum heads).

Posting just to add some info i found on these gaskets

1011-1

4.100 gasket bore
.041 thickness
pre flattened steel ring

1011-2
4.100 gasket bore
.039 thickness
pre flattened copper ring

looks like their is a slight thickness difference as well

[93Cobra#2771]

Had no problems out of my 1011-2's. I've pumped 275 HP for almost 10 years now... :lol:

[QWKSNKE]

another tidbit of info

From Matt at the Fel Pro tech line this morning (12/19)

The 1011-2 (copper flat wire - .039" compressed thickness) should be used with E7TE factory heads 1982+ (he might have said 83+). The head casting is not as robust as the earlier small block heads, and as a result it can have the tendancy to actually 'bend' the head around the steel wire in the gasket as opposed to compressing it equally. That can (not always) cause head gasket sealing problems (usually coolant, not cylinder) or sealing problems on the header or intake side because of the distortion. He said that their research shows that the aftermarket aluminum heads -- AFR's, TFS, Edelbrock's, FRPP's, etc. as well as earlier factory cast iron heads are stout enough that they don't have that problem. Either gasket 1011-1 (steel wire, .041" thick) or the 1011-2 (copper wire, .039" thick) can be used with those heads but they recommend the 1011-1 with steel wire. I didn't think to ask about GT40 irons or GT40P's (also iron).

Who'd've thunk it?

[93Cobra#2771]

Funny you quoted Michael Yount - he lives in Knoxville and I know him very well. He's a mechanical engineer, BTW. He has a EFI 302 powered 1982 Volvo, if you can believe that....

[sinistercoupe]

i've run the cheap fel pro 8548pt2s for years now with hp in the 450-500 rwhp range. They are badass for a cheap gasket. Brent on turbomustangs made 1200 rwhp with them on the dyno.