3" cold pipe for 12psi? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

neilsan · 02-24-2006, 05:47 PM

ive got a generally stock s13 sr and want to get out of my SMIC.

I can pick up the Hybrid piping kit for a reasonable price and ive got my eye on a used 31x6x3 intercooler 3" in/out to go with it. My current goal is to run around 12psi till the t25 bites it and then upgrade accordingly later for more boost, with an eventual 250-280whp final goal. The cold pipe in the kit is 3" though, and I know most setups for 400whp dont even run that large.

Would 12psi at the throttle body be overworking the turbo since its a larger volume to fill? Also where's the best place to run a boost line for a controller solenoid with a front mount? currently my profecII is getting its PSI reading t'd off under the dash from my mechanical boost gauge, which is run off the throttle body. The control solenoid is interrupting the stock actuator hose off of the smic cold pipe (obviously), but I dont see any fittings on the Hybrid for it. am i missing it or do you run the actuator solenoid off the throttle body with a fmic?

cost effective-wise is this a good option, or for $250 more should i just get a greddy v-spec kit and forget about it. i already have a greddy hotpipe anyway for the smic and id need to do a little fabbing to it to meet the lower hot side of the hybrid.

02-24-2006, 05:47 PM	#1
neilsan Zilvia Junkie Join Date: Sep 2004 Location: east coast Age: 44 Posts: 333 Trader Rating: (0) Feedback Score: 0 reviews	3" cold pipe for 12psi? ive got a generally stock s13 sr and want to get out of my SMIC. I can pick up the Hybrid piping kit for a reasonable price and ive got my eye on a used 31x6x3 intercooler 3" in/out to go with it. My current goal is to run around 12psi till the t25 bites it and then upgrade accordingly later for more boost, with an eventual 250-280whp final goal. The cold pipe in the kit is 3" though, and I know most setups for 400whp dont even run that large. Would 12psi at the throttle body be overworking the turbo since its a larger volume to fill? Also where's the best place to run a boost line for a controller solenoid with a front mount? currently my profecII is getting its PSI reading t'd off under the dash from my mechanical boost gauge, which is run off the throttle body. The control solenoid is interrupting the stock actuator hose off of the smic cold pipe (obviously), but I dont see any fittings on the Hybrid for it. am i missing it or do you run the actuator solenoid off the throttle body with a fmic? cost effective-wise is this a good option, or for $250 more should i just get a greddy v-spec kit and forget about it. i already have a greddy hotpipe anyway for the smic and id need to do a little fabbing to it to meet the lower hot side of the hybrid.