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Engine, Exhaust & Gearbox ECU chips, decats, cam kits,

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Old 19-09-2018, 09:53 AM   #1
JonnyBBoy
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Arp head studs

Its mandatory to use arp head bolts for a turbo j4?
Im using wossner low comp, forged rods, and a T3/t04e .57 trim turbo.
The OEM bolts can take 1.3bar or should i use the arp?
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Old 28-09-2018, 08:29 AM   #2
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What is your power goal? For around 250-300hp the stock bolts should be ok. Using ARP head studs will distort the block so you should re-bore/re-hone the block with torque plate. Torque setting for ARP is much greater than for OEM bolts. The OEM bolts are also stretch type which means they stretch when torqued and should not be reused.
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Old 01-10-2018, 09:00 AM   #3
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What is your power goal? For around 250-300hp the stock bolts should be ok. Using ARP head studs will distort the block so you should re-bore/re-hone the block with torque plate. Torque setting for ARP is much greater than for OEM bolts. The OEM bolts are also stretch type which means they stretch when torqued and should not be reused.
i think maybe 350/370hp at the flywheel. So itīs better to go for the ARP?
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Old 02-10-2018, 07:26 AM   #4
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i think maybe 350/370hp at the flywheel. So itīs better to go for the ARP?
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For that power level definitely.
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Old 02-10-2018, 09:23 AM   #5
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The cheapest place do buy the arpīs itīs from spoox? i saw it for 183Ģ plus 16.50Ģ for shipping
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Old 03-10-2018, 08:13 AM   #6
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I hope they are correct items. Had troubles with them in the past. Check pug10ff, they have them even cheaper than that.
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