Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - GT3071R Tune and DYNO results

ka24det-power · 07-26-2005, 12:08 PM

Ok so I just got my car Dyno'd and I am happy but I think that it is a little under powered for my setup. Maybe not what do you guys think?

Setup:
155 Compression across the board
S13 Blacktop SR20DET
GReddy Intake Mani
GT3071R .86 Turbo @ 18psi
3" Turbo Back Exhaust
GReddy IC Pipes
31x3x11 FMIC
UR Crank Pulley
HKS 264 Step 1 Cams
XAT Racing ROM Tune by Martin @ XAT
Stock Turbo Mani

I made 354 @ 18psi. I will post the Dyno chart later I am waiting for them to email it to me.

A problem I do know of is the wastegate act is having a hard time holding 18psi, its tends to bleed down to 17. I will be getting the HKS act to fix that.

I was hoping for 390 @ 19psi, what would you recommend? A retune from Enthalpy? Step 2 cams? Valve Springs? What would the best bang for my buck be as far as the next level.

07-26-2005, 12:08 PM	#1
ka24det-power Zilvia Member Join Date: Dec 2004 Location: Florida Posts: 188 Trader Rating: (0)	GT3071R Tune and DYNO results - what do you think? Ok so I just got my car Dyno'd and I am happy but I think that it is a little under powered for my setup. Maybe not what do you guys think? Setup: 155 Compression across the board S13 Blacktop SR20DET GReddy Intake Mani GT3071R .86 Turbo @ 18psi 3" Turbo Back Exhaust GReddy IC Pipes 31x3x11 FMIC UR Crank Pulley HKS 264 Step 1 Cams XAT Racing ROM Tune by Martin @ XAT Stock Turbo Mani I made 354 @ 18psi. I will post the Dyno chart later I am waiting for them to email it to me. A problem I do know of is the wastegate act is having a hard time holding 18psi, its tends to bleed down to 17. I will be getting the HKS act to fix that. I was hoping for 390 @ 19psi, what would you recommend? A retune from Enthalpy? Step 2 cams? Valve Springs? What would the best bang for my buck be as far as the next level.