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Author Topic: ARP head studs  (Read 1428 times)

Offline daniel Dee

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ARP head studs
« on: March 31, 2008, 07:17:19 am »
I beginning to think these are not better than stock..
Whats better?????
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Offline Mike Schmid

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Re: ARP head studs
« Reply #1 on: March 31, 2008, 07:49:39 am »
What's your evidence and thoughts behind that?

Did you have a failure? 

The ARP studs are supposed to be stronger and manufactured to tighter tolerances.  Also properly installed studs will have a more even consistent clamping force than stock bolts.  Studs also distort the bore different than bolts do tho so they should only really properly be used on a new build where the block has a torque plate installed with the studs.  That said lots of guys have stuck them in stock motors and it's worked out just fine.  Don't expect to see/feel a performance gain tho. 
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Offline John Hartman

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Re: ARP head studs
« Reply #2 on: March 31, 2008, 04:13:29 pm »
head and block prep are soooooo important when installing a new head gasket.  Also, I would suggest putting a stock or stock type of head gasket(composite) on a block that was only hand prepped.  The metal ones need to have a finely machined surface to seal correctly.  Yes there are guys who didn't do it that way, and great, cool, but its not a common thing for it to work out that way.

And like Mike said, what evidence are you basing your conclusion on?
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Offline Graeme H Burvill

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Re: ARP head studs
« Reply #3 on: March 31, 2008, 05:05:03 pm »
There is absolutely no question : arp's>stock
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Offline Brett Haviland

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Re: ARP head studs
« Reply #4 on: March 31, 2008, 09:05:23 pm »
yeah ARP's have been proven, time and time again granted tho stock OEM head bolts are good as well.  You just have to watch out for the stock ones stretching. 

I have re-used stock ones many times before and not had a problem as well.
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Offline daniel Dee

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Re: ARP head studs
« Reply #5 on: April 02, 2008, 08:53:00 pm »
I read enough threads in DSMtuners about ARP's not holding hi-boost (beyond 30 psi)
and locally I had heard some DSMer's (not mentioning names)  finding their ARP's nuts loose
enough to turn by hand after driving around a few days.


 
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92 AWD TSI 5spd<br />Built motor ,AEM EMS, Arc2 cdi 1050cc&1000cc Staged injectors Billet S366 T4,top mount manifold.666 AWHP@39psi (RG Dyno 2010). New mods E85, BF cams, 72mm turbo, 70mm throttle body />90 TSI (gone), 95 TSI 5 spd sold, 93 Mazda 5sp(sold), 97 Acura 5spd Vtec 99 Audi A4 quad 5sp 2018 Civicturbo 6sp ktuner

Offline John Hartman

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Re: ARP head studs
« Reply #6 on: April 02, 2008, 09:04:37 pm »
I believe you are supposed to retorque them after a short time.

Hell, even stock bolts get loose after a bit of driving.  I just retorqued a local members head bolts(stockers) after about 1 month of use on a built engine.
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91 Eagle Talon TSi 5spd awd.  GT-12, TriFlow Cams, 850s, Tial, JIC, Jackal, sticky rubber.
86 Merkur XR4Ti 5spd, rwd, turbo, 91,381km.  Original paint, heated leather. intercooled, big VAM, Full 3" exhaust, Cossie sway bar, 16" tires.
06 Mazdaspeed6 6spd awd, DISI turbo, heated leather HIDs, Corksport, Cobb, Konig, Centric...
2018 VW Golf Alltrack turbo Tornado Red, 6mt, some free mods

Offline daniel Dee

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Re: ARP head studs
« Reply #7 on: April 03, 2008, 07:47:16 am »
I buying for a built stroker so
I read about L19 head studs from Magus A1 and ARP...
It's not in the ARP catalog ..
But I ordered ARP-L19-6B for 6 bolt 4g63.$295 from JNZ
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92 AWD TSI 5spd<br />Built motor ,AEM EMS, Arc2 cdi 1050cc&1000cc Staged injectors Billet S366 T4,top mount manifold.666 AWHP@39psi (RG Dyno 2010). New mods E85, BF cams, 72mm turbo, 70mm throttle body />90 TSI (gone), 95 TSI 5 spd sold, 93 Mazda 5sp(sold), 97 Acura 5spd Vtec 99 Audi A4 quad 5sp 2018 Civicturbo 6sp ktuner

Offline Marke Bailey

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Re: ARP head studs
« Reply #8 on: April 03, 2008, 08:14:20 am »
Quote from: daniel Dee on April 03, 2008, 07:47:16 am
I buying for a built stroker so
I read about L19 head studs from Magus A1 and ARP...
It's not in the ARP catalog ..
But I ordered ARP-L19-6B for 6 bolt 4g63.$295 from JNZ


ouch! ARP's are $100 from Mopac including tax.
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Offline Matt Fredrikson

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Re: ARP head studs
« Reply #9 on: April 03, 2008, 10:02:23 am »
ya regular ones are $100 L19's are 3 times as much
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Offline Graeme H Burvill

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Re: ARP head studs
« Reply #10 on: April 03, 2008, 10:54:48 am »
90$ shipped brand new from cadsm if you can find someone who ended up not using them.  :)
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Offline John Hartman

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Re: ARP head studs
« Reply #11 on: April 03, 2008, 02:23:32 pm »
for L19's Graeme?
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91 Eagle Talon TSi 5spd awd.  GT-12, TriFlow Cams, 850s, Tial, JIC, Jackal, sticky rubber.
86 Merkur XR4Ti 5spd, rwd, turbo, 91,381km.  Original paint, heated leather. intercooled, big VAM, Full 3" exhaust, Cossie sway bar, 16" tires.
06 Mazdaspeed6 6spd awd, DISI turbo, heated leather HIDs, Corksport, Cobb, Konig, Centric...
2018 VW Golf Alltrack turbo Tornado Red, 6mt, some free mods

Offline Brett Haviland

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Re: ARP head studs
« Reply #12 on: April 03, 2008, 02:49:58 pm »
no i imagine the L19's are more exspensive then $90
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Offline Graeme H Burvill

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Re: ARP head studs
« Reply #13 on: April 03, 2008, 05:06:48 pm »
NOT L19'S.....sorry! I would never need L19's...well maybe one day if she turns drag queen weight reduc styles, but I don't see that happening any time soon.
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Offline daniel Dee

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Re: ARP head studs
« Reply #14 on: April 03, 2008, 08:25:52 pm »
I've regular ARP studs new in the box....$90.00

I planning to return to MOPAC but I bought them over
a year ago..and a receipt may not be found. plus its
a long drive to Langley...
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92 AWD TSI 5spd<br />Built motor ,AEM EMS, Arc2 cdi 1050cc&1000cc Staged injectors Billet S366 T4,top mount manifold.666 AWHP@39psi (RG Dyno 2010). New mods E85, BF cams, 72mm turbo, 70mm throttle body />90 TSI (gone), 95 TSI 5 spd sold, 93 Mazda 5sp(sold), 97 Acura 5spd Vtec 99 Audi A4 quad 5sp 2018 Civicturbo 6sp ktuner
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