GT2871 USERS. SR motor

[Seraphim38]

Since it is very hard to find pictures of anyone actually doing it, below is my installation of the .73AR T25-EWG-44 exhaust housing on a GT2871R, which allows for the use of a 44mm Tial wastegate.

PICS:







Mod list:

SR20DET #62 ECU previously flashed by Enthalpy (for now; Power FC or EMS Series 2 may be coming)
Garrett GT2871R .73AR T25-EWG-44 housing
All turbo hardware is stainless studs with copper lock nuts and nord lock washers
Greddy tubular exhaust manifold, with 4 layers of ceramic coating
Tial 44mm v-band external wastegate, 1.1 Bar, with custom dump tube
Blitz i-sbc ID digital boost controller
7 layer exhaust gasket
Circuit Sports braided turbo oil & coolant lines
Splitfire coil packs
Greddy/trust turbo elbow
Greddy down pipe
Invidia 3” full exhaust with Magnaflow 3” spun metallic catalytic converter, and extra 3” Magnaflow race muffler to quiet it down
Greddy hot pipe
Greddy front mount intercooler
Greddy type RS blow off valve (Tial Q BOV already bought and to be installed next week with custom intercooler piping, HPS couplers and T-bolt clamps)
BC264 12.0mm lift cams
JWT cam gears
Greddy valve springs
Greddy/Trust rocker arm stoppers
BC titanium valve spring retainers
Wiseco 9:1 pistons, 86.5mm
Eagle rods
Wiseco pistons 9:1 compression
ARP head studs
Apexi 1.1 head gasket
ACL race bearings
New OEM timing set
New OEM oil pump
Circuit Sports oil block adapter
10AN Aeroquip oil lines to Offenhauser remote oil filter mount, Permacool 160 degree oil thermostat and CX Racing oil cooler
Greddy oil pan
Stance water pump pulley
OEM Nissan water pump
Samco silicone hoses
Stance water neck spacer
OEM Nissan thermostat
Koyo race radiator
Blitz radiator cap
Circuit Sports coolant reservoir
Dual electric Altima fans (DIF controller yet to be installed)
Stock SR20DET S13 intake manifold, S13 throttle body (soon to install a 75mm TB and S14 TPS)
Z32 N62 MAF
Apexi Z32 suction kit
Injector Dynamics 1000cc top feed high impedance fuel injectors
HKS top feed fuel rail
Aeromotive Fuel Pressure Regulator and -8 AN push lock lines
Aeromotive -10 micron billet fuel filter
Walbro 255LPH fuel pump
A/C removed
Rebuilt alternator
RPS Max stage 3 clutch
Nissan OEM clutch slave cylinder with braided stainless line
B&M quick shifter
Nismo rubber shift knob
1 piece aluminum lightened driveshaft
Nismo motor mounts

Impressions:

The installation of the T25-EWG-44 did not allow enough space to mount the Tial MV-R waste gate directly on the turbo housing, so my mechanic fabricated a 90 degree elbow (like what ATP sells) to mount the Tail vertically below the brake master cylinder. He then custom fabricated a dump tube down inbetween the bell housing and firewall. Overall the installation turned out very clean. The Greddy tubular exhaust manifold with 4 coats of ceramic coating turned out fantastic. It is a very stout manifold compared to everything else I have seen.

Driving impresson? Man that waste gate dump tube is obnoxiously loud

So far I haven't been able to get an Enthalpy tune that will work on the car. It runs rich at idle (11.5-12:1 AFR), no load going through the gears 14.7:1, on boost around 13.4:1 range, which means I have to be disciplined to stay out of boost. I am installing a new Aeromotive 340lph Stealth pump tomorrow and a 60 amp relay direct to the trunk/hatch mounted Odyssey PC925 battery. It appears to be more laggy than the previous .64AR setup, but I think it is possibly because it is slightly lean and not getting enough fuel to spool to full boost in the 3.5K RPM-4K RPM range (It won’t hit full boost until 4K, which is too late). I also suspect that maybe the 1.1Bar waste gate spring is too high and I should lower it, which would let my boost controller to more of the work.

Since I have had trouble getting a ROM tune to work, I have been thinking that I will have to either go with an AEM EMS Series 2 standalone or an Apexi Power FC D-Jetro. Several pro-am drifters locally have had issues with the EMS rev lifter causing displaced rocker arms or shims, when it has never happened with a Power FC. Thus, my mechanic is currently suggesting that the Power FC is a good option. I will be doing whatever it takes to tune the car will be tuned properly, within the next week or two max.

[di-devol]

Originally Posted by Seraphim38

Since I have had trouble getting a ROM tune to work, I have been thinking that I will have to either go with an AEM EMS Series 2 standalone or an Apexi Power FC D-Jetro. Several pro-am drifters locally have had issues with the EMS rev lifter causing displaced rocker arms or shims, when it has never happened with a Power FC. Thus, my mechanic is currently suggesting that the Power FC is a good option. I will be doing whatever it takes to tune the car will be tuned properly, within the next week or two max.

It's funny you mention that, I'm having the same problem even on a sinlge cam. I keep collapsing lifters. I've never collapsed one untill the AEM was installed. Jason a PSI does good work though, I look forward to your numbers!

-Tim

[usdm180sx]

Originally Posted by Seraphim38

Since it is very hard to find pictures of anyone actually doing it, below is my installation of the .73AR T25-EWG-44 exhaust housing on a GT2871R, which allows for the use of a 44mm Tial wastegate.

Impressions:

The installation of the T25-EWG-44 did not allow enough space to mount the Tial MV-R waste gate directly on the turbo housing, so my mechanic fabricated a 90 degree elbow (like what ATP sells) to mount the Tail vertically below the brake master cylinder. He then custom fabricated a dump tube down inbetween the bell housing and firewall. Overall the installation turned out very clean. The Greddy tubular exhaust manifold with 4 coats of ceramic coating turned out fantastic. It is a very stout manifold compared to everything else I have seen.

Driving impresson? Man that waste gate dump tube is obnoxiously loud

So far I haven't been able to get an Enthalpy tune that will work on the car. It runs rich at idle (11.5-12:1 AFR), no load going through the gears 14.7:1, on boost around 13.4:1 range, which means I have to be disciplined to stay out of boost. I am installing a new Aeromotive 340lph Stealth pump tomorrow and a 60 amp relay direct to the trunk/hatch mounted Odyssey PC925 battery. It appears to be more laggy than the previous .64AR setup, but I think it is possibly because it is slightly lean and not getting enough fuel to spool to full boost in the 3.5K RPM-4K RPM range (It won’t hit full boost until 4K, which is too late). I also suspect that maybe the 1.1Bar waste gate spring is too high and I should lower it, which would let my boost controller to more of the work.

Since I have had trouble getting a ROM tune to work, I have been thinking that I will have to either go with an AEM EMS Series 2 standalone or an Apexi Power FC D-Jetro. Several pro-am drifters locally have had issues with the EMS rev lifter causing displaced rocker arms or shims, when it has never happened with a Power FC. Thus, my mechanic is currently suggesting that the Power FC is a good option. I will be doing whatever it takes to tune the car will be tuned properly, within the next week or two max.

Whoa this is AWESOME. EXACTLY what I am looking for! Thanks!