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Fel pro head gasket limit 10mm studs

Posted: Fri Apr 05, 2013 8:01 am
by BoBaCk1
Getting ready to have my car dynoed and looking to hit 500hp on e85 but just wondering if the fel pro and 10mm studs would be a concern on that power level. I'm thinking I can hit that power with 20-23 psi on my turbo. They are the ka24de studs arp 2000 not the Saturn studs. Precision 6262 .82 a/r, full proefi standalone with flex fuel, fic 2150cc, walbro 416lph hard wired . Thanks in advance it's just stressing me thinking about it. Had my fair share of head lifting from bad tunes to bad injectors.

Posted: Fri Apr 05, 2013 9:27 am
by airman
At 500whp I would begin worrying about the head gasket. Several people have reported 500whp on a plain Felpro but I don't know how long it will be reliable.

Posted: Fri Apr 05, 2013 9:51 am
by RosadoRacing
The studs are good to 700whp the gasket will not hold maybe you can squeeze out 500 but reliability will be a huge concern idk why people want to make big numbers and use a cheap gasket like felpro.should have got cometic I haven't seen anyone with a felpro make big numbers

Posted: Fri Apr 05, 2013 11:05 am
by airman
Cosworth head gaskets on sale for $110 - a steal. I bought one myself and I don't even have a 240 right now.

http://www.cosworthperformance.com/stor ... tegory=105

Posted: Fri Apr 05, 2013 11:52 am
by sdaigle240
berkshire look him up he had quite a few miles high hp on his. it did end up blowing i think it was somewhere in the 6s though.

Posted: Fri Apr 05, 2013 12:33 pm
by BoBaCk1
Well I kept stock head gasket because everybody claimed bad experiences with cometic if surfaces were not prepped for it. And my surfaces were not prepped. Maybe I could have got away with it but I didn't want to chance it. Plus my friend duncan351 has used fel pros forever and has no problems granted he's on 11mm head studs. But thanks for the replys. Thanks for the link on the cosworth gaskets. Might give that a shot. I might have to do another motor for that gasket.

Posted: Sun Apr 07, 2013 2:15 pm
by Caveit77777
Can you do it? Sure. Should you do it? Ehh maybe, maybe not. Like others said, you can but why risk it? Grab a cometic or a cosworth and get everything smoothed out so you can have a smooth mating surface. Either that or run 11mm headstuds instead. In a perfect world where money doesn't matter, both of those is ideally what you want.

Posted: Sun Apr 07, 2013 2:36 pm
by Berserker
My 500whp held for few summers, and I beat on the car alot. But once I went over 600 it started leaking. But I'm also on 11mm head bolts. I also leaned out few pulls on the highway with felpro(1 fuel pump burned out) but put in new pump and still finished the summer without any problems. If you have everything on and ready to go i would say just stick with felpro.

Posted: Sun Apr 07, 2013 3:20 pm
by BoBaCk1
Thanks berserker I was hoping you would chime in. Yeah as of right now fel pro and 10mm studs are all I have. I shoulda my surfaces prepped but maybe I can take 1200 grit sand paper and prep it or just do another block for it. Just wanted to see if it'll hold for right now. My tuner is a well respected tuner here so he said he'll just take it easy on the timing and well try and make the power with boost.

Posted: Sun Apr 07, 2013 3:20 pm
by BoBaCk1
I would love to put 11mm head studs and a cosworth gasket.

Posted: Sun Apr 07, 2013 5:03 pm
by Berserker
Yeah I also have the same turbo and I made 490whp @ 20 psi if I remember correctly. And it was not aggressive timing at all.

Posted: Sun Apr 07, 2013 5:29 pm
by duncan351
I have been pushing a fel pro paper gasket for over 3 years and past 30psi with 11mm head studs. Never replaced the head gasket. Just a little secret, its all in the tune. If you are blowing headgaskets then your are detonating. Stay out of detonation, you won't blow the head gasket.

Posted: Sun Apr 07, 2013 5:52 pm
by Marcus
duncan351 wrote:I have been pushing a fel pro paper gasket for over 3 years and past 30psi with 11mm head studs. Never replaced the head gasket. Just a little secret, its all in the tune. If you are blowing headgaskets then your are detonating. Stay out of detonation, you won't blow the head gasket.
Awesome to hear...for I only run a fel-pro to let me know if something is wrong. A good failsafe in my book.

Posted: Sun Apr 07, 2013 6:26 pm
by BoBaCk1
What up Duron it's chris from Houston . Thanks berserker ill be happy at 490 hp if it stayed together.

Posted: Sun Apr 07, 2013 7:43 pm
by BoBaCk1
Is anyone in here actually running a cosworth gasket?

Posted: Sun Apr 07, 2013 7:44 pm
by BoBaCk1
Are the fire ring edges folded for better sealing like their other gaskets.

Posted: Sun Apr 07, 2013 8:11 pm
by Berserker
I have a cosworth gasket in right now with new 11mm arp studs.
I had my head resurfaced again.
For the block I cleaned up and used a block sander to smooth it out. It was decked when I had machine work done.
So far so good.

Posted: Wed Apr 10, 2013 9:54 am
by sdaigle240
i popped the wastegate line once and was really glad a had a felpro fuse.

Posted: Sun Apr 14, 2013 5:18 pm
by mewantkouki
airman wrote:Cosworth head gaskets on sale for $110 - a steal. I bought one myself and I don't even have a 240 right now.

http://www.cosworthperformance.com/stor ... tegory=105
I tried to order on of these on April 7th. Charge never posted to my credit card. On the 10th I see some random charge for $395 to radioshack.com. This is a fraudulent website. BEWARE I received an order confirmation, but can't check the status and it says the online store has been temporary closed. Just a heads up for anyone else who thought this was too good to be true. It definitely is.

Posted: Sun Apr 14, 2013 8:53 pm
by BoBaCk1
Thanks for the heads up and sorry for the scam that happened to you. I was thinking of ordering one from here.

Posted: Thu Apr 18, 2013 1:06 pm
by airman
mewantkouki wrote:
airman wrote:Cosworth head gaskets on sale for $110 - a steal. I bought one myself and I don't even have a 240 right now.

http://www.cosworthperformance.com/stor ... tegory=105
I tried to order on of these on April 7th. Charge never posted to my credit card. On the 10th I see some random charge for $395 to radioshack.com. This is a fraudulent website. BEWARE I received an order confirmation, but can't check the status and it says the online store has been temporary closed. Just a heads up for anyone else who thought this was too good to be true. It definitely is.
How about that. Explains the ~$750 that they tried to charge to Macy's and Snowboarding gear.

Oh well...WTB Cosworth gasket...need to dispute the charge for the actual head gasket though.

Edit - looks like they took that one off too. Thanks Chase :D