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mdost03 · 11-19-2006

Well, my friend went on the dyno with his RS-T and made 210 hp and 214 lb tq at 6 psi at the wheels. That already makes the same as a stock GS-T's hp at the crank. So, if you think about, yes I can beat a slightly modded GS-T. I have done it before.

I plan on rebuilding my engine with some forged pistons and rods and then get a few fuel upgrades and I will be boosting around 15 psi, which should equal around 300 whp. The 420a is a more modern design compared to the 4G63. Sure, a stock GS-T is going to make more power right away, but it doesn't take much on an RS or GS to make it right up there with it.

11-19-2006	#21
mdost03 Sonic Champion! Join Date: Jul 2005 Location: Litchfield Drives: VA STI Posts: 1,793	Re: big bore kit for 420a Well, my friend went on the dyno with his RS-T and made 210 hp and 214 lb tq at 6 psi at the wheels. That already makes the same as a stock GS-T's hp at the crank. So, if you think about, yes I can beat a slightly modded GS-T. I have done it before. I plan on rebuilding my engine with some forged pistons and rods and then get a few fuel upgrades and I will be boosting around 15 psi, which should equal around 300 whp. The 420a is a more modern design compared to the 4G63. Sure, a stock GS-T is going to make more power right away, but it doesn't take much on an RS or GS to make it right up there with it. Last edited by mdost03; 11-20-2006 at 12:12 AM..