Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - 300 whp setup, should I replace HG for safety? SR20

1320VR4 · 05-28-2016, 04:59 PM

I bought an ecu / 740cc injectors / garrett gt2781 turbo and some misc odds and ends from a friend. He's upgrading his setup so I bought his hand-me-downs. He had his car dyno'd at 305 rwhp with this setup and the current tune on the ecu. I'm expecting for my car the tune will be close but I'll still have it professionally gone over once I finish installing stuff.

Anyhow the previous owner ran on the stock head gasket without issue. Was setup as a drift car so it probably had a few thousand miles on it plus beating the snot out of it at the track.

Should I worry about having to replace the HG and do studs or just leave it for now. Plans are in a year or two to build an entire fresh engine so I can go for more power and maintain reliability so I won't be pushing it farther than 300.

I've heard mixed suggestions from folks on if I should or shouldn't worry.

05-28-2016, 04:59 PM	#1
1320VR4 Zilvia Member Join Date: Mar 2012 Location: Vernon, NJ Age: 31 Posts: 269 Trader Rating: (4)	300 whp setup, should I replace HG for safety? SR20 I bought an ecu / 740cc injectors / garrett gt2781 turbo and some misc odds and ends from a friend. He's upgrading his setup so I bought his hand-me-downs. He had his car dyno'd at 305 rwhp with this setup and the current tune on the ecu. I'm expecting for my car the tune will be close but I'll still have it professionally gone over once I finish installing stuff. Anyhow the previous owner ran on the stock head gasket without issue. Was setup as a drift car so it probably had a few thousand miles on it plus beating the snot out of it at the track. Should I worry about having to replace the HG and do studs or just leave it for now. Plans are in a year or two to build an entire fresh engine so I can go for more power and maintain reliability so I won't be pushing it farther than 300. I've heard mixed suggestions from folks on if I should or shouldn't worry. __________________ 94 240SX, 93 Stealth, 92 VR4, 93 RX7 , 88 Yota