GT2871 USERS. SR motor - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

DrifterProdigy85 · 02-22-2008, 11:06 AM

I agree that the 3071R .63 will spool faster and make more power than the 2871R .86. I think the .86 housing is just restrictive. Ive always been curious of the GT2871R w/ .63 T3 housing. Might give the same top end power of the .86 with the spool that it lacks.

370cc can max out with only 10psi pending on the setup. When i dynoed my stock block w/ 2871R .86, Greddy IM, and HKS 264 Step 1 Cams, I was doing 315whp @ 14-15psi.

INeedNewTires, i believe you can hit your 400hp goal if you get a new Intake Manifold and some kind of Tubular Manifold. I like my Ichiba Vers II Manifold. Same design as the Tomei but half the price.

02-22-2008, 11:06 AM	#10
DrifterProdigy85 Leaky Injector Join Date: Aug 2004 Location: Glen Rock, PA Age: 38 Posts: 100 Trader Rating: (0) Feedback Score: 0 reviews	I agree that the 3071R .63 will spool faster and make more power than the 2871R .86. I think the .86 housing is just restrictive. Ive always been curious of the GT2871R w/ .63 T3 housing. Might give the same top end power of the .86 with the spool that it lacks. 370cc can max out with only 10psi pending on the setup. When i dynoed my stock block w/ 2871R .86, Greddy IM, and HKS 264 Step 1 Cams, I was doing 315whp @ 14-15psi. INeedNewTires, i believe you can hit your 400hp goal if you get a new Intake Manifold and some kind of Tubular Manifold. I like my Ichiba Vers II Manifold. Same design as the Tomei but half the price. __________________ 1995 Nissan 240sx RB25DET