boost on felpro head bolts?

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beercandrifter
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boost on felpro head bolts?

Post by beercandrifter »

curious, i know the goto is the arp head studs and was for me as well, but how many people here actually run boost on regular head bolts? and what kind of boost are you hitting
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Re: boost on felpro head bolts?

Post by shift_down »

7-10 psi 500miles no problems so far.
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schmauster920
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Re: boost on felpro head bolts?

Post by schmauster920 »

Yeah i got up to about 10-14 and lifted the head with e85 and a bunch of timing. This was with head bolts that were reused at least twice


For the cost of the head bolts (20-40) i'd rather put it towards head studs (80) since they dont torque to yield and can be reused
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beercandrifter
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Re: boost on felpro head bolts?

Post by beercandrifter »

am debating if i should use the felpros for ~12-15psi of boost. this would be on pump gas with regular timing (have the curse of no local e85)
different engine, same bolt size as the ka.

difference is, for the lsx engines, the arp studs are ~300$ vs 30$ for a set of felpros. have a few things i would rather spend the money on if i could (i.e. valve springs and a cam) and get the arp's down the line if i can get away with it.
91 240sx Hatch: HomeBrwd
25psi hx35/8.8:1/264^2 cams/95lb injectors/Megasquirt 2/ka24de build **RIP**
T56/4.8 LSx/LS9 Cam/60lb injectors/comp 918 springs/Megasquirt 3/all custom wiring
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Re: boost on felpro head bolts?

Post by Marcus »

I didn't use fel-pro's, but I did use oem new head bolts on my last t3/to4e setup at 16-18 psi.

I don't know where the fel-pro's are made however. Hate for it to be quality on par with the american/mexican replacement timing components.
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Re: boost on felpro head bolts?

Post by 240sxfan6882 »

I like the Felpro HG, but I steer CLEAR from their headbolts (Taiwan made). I had one stretch like like taffy when I was torquing it to 60 pounds.Get OEM or ARP. The Victor Reinz are the same Taiwan source most likely.
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Re: boost on felpro head bolts?

Post by erich »

I ran OEM headbolts on 14ps for about 11 years before the headgasket popped. Fuel pump died and I went lean.
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