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Discussion Starter · #1 · (Edited)
UPDATE 5/24/09: Quarter-mile time: 10.220 sec. at 144 mph! See this thread for the video.

As many of you may know, Mo and the SRT crew have been doing some upgrades to my car. Well, here is the result. My old turbo, the Precision PT-67 dual-ball-bearing turbo (0.81 A/R), maxed out at 748RWHP (which is quite a lot for a 67), so we wanted to see what the new Precision 67mm billet turbo could do. I wanted to stay with a 67mm because I didn't want the lag of a bigger turbo. The spool turned out to be only a few hundred RPM slower than my old turbo, even though it's a journal bearing turbo with a 0.96 A/R. We are very impressed with the Precision's billet turbos.

SRT also replaced some other parts to support the bigger power, the biggest change being the debut of SRT's Version 2 intake manifold. It is much more rounded than the old design and is just plain huge. The CNC flanges are beautiful, and the mounts for the injectors are :drool:. They also replaced the intercooler with one with a huge, 4.5" thick core (I forgot to take pics of this :(). Here's a list of all of the changes:

Precision PT6765S T4 Billet turbo w/ 0.96 exhaust A/R
SRT Version 2 intake manifold and fuel rail
Precision 1260cc fuel injectors
SRT custom intercooler with a 4.5" thick core
5-bar MAP sensor

We are all really happy with the numbers, though Mo thinks my 264 cams and 3" exhaust are limiting my max power quite a bit. But we will leave those for another day. ;) My car has never been just a show/dyno queen, so SRT is doing a few minor adjustments to optimize my car for drag racing. We'll be heading to the track very soon to see what it can do in the 1/4 mile (full interior, full weight). So, stay tuned.

Huge thanks to Mo, Dennis, and the rest of the SRT crew for all of their innovation, hard work, and late nights!

Video someone posted:
YouTube - IS 300 850hp pull
(I think I need a new boost gauge that can read over 2 bar!)

Dyno chart and some pics:

30.5 PSI on Q16 race gas:














Here are some pics of the flanges before they were welded on. A work of art!





And a few recent pics of the rest of the car:









Here's my full mod list:

ENGINE:
Fully built/blueprinted/balanced 2JZ-GE block
Manley rods and Arias pistons (0.20 overbore)
SRT custom Stage 2 port and polished 2JZ-GE head
HKS 264/264 camshafts
Titan Motorsports adjustable cam gears
Titan Motorsports harmonic crank dampener pulley
SRT custom CNC machined timing gear
Crower valve springs/retainers
Toyota Supra TT head gasket
ARP head studs
SRT custom engine mounts
Precision PT6765S T4 Billet turbo w/ 0.96 exhaust A/R
Haltech E11v2 standalone engine management system
Haltech twin ignitors
HKS DLI ignition amplifier
Toyota Supra TT coilpacks
SRT tubular exhaust manifold
SRT ver. 2 intake manifold
SRT custom intercooler with 4.5" thick core
SRT custom polished intercooler piping
Tial 44mm wastegate with open dump
Two Blitz Super Sound Dual Drive blow-off valves
75mm throttle body
Precision 1,260 cc fuel injectors
Two Walbro 255 lph fuel pumps
SRT fuel return kit
Aeromotive fuel pressure regulator
Koyo radiator
SRT 3" downpipe
SRT 3" exhaust with Tanabe muffler
SRT custom oil catch can
ARC titanium radiator shroud
ARC oil and radiator caps
TRANSMISSION:
Auto-to-manual transmission swap
Toyota Supra TT V160 Getrag 6-speed transmission
Toyota Supra TT clutch master cylinder
Carbonetic triple-plate carbon clutch
TRD LSD
Lexus GS400 rear-end conversion
Toyota Supra TT half-shafts
SRT custom one-piece driveshaft with driveshaft loop

INTERIOR/ELECTRONICS:
Blitz SBC-id III boost controller
Blitz Power Meter-id III
Blitz FATT IV turbo timer
Defi-Link BF Series Gauges (Boost, EGT, Oil Pressure)
Defi-Link Control Unit II
AEM Wideband UEGO Controller
TRD Gauge Pod
SRT custom shift light
Bride Zeta III bucket seat
Bride Ergo II reclinable seat
Bride gradation custom-wrapped interior
Takata 4-point harnesses
Takata gel harness pads
Vertex 325mm steering wheel
Night Pager/Works Bell short boss
Night Pager/Works Bell paddle kit (custom wired to line-lock and two-step)

EXTERIOR:
Vertex S-Endurance Race-Type front bumper with canards
Vertex 15mm Aero Fenders
Vertex side skirts
JDM Toyota Altezza Neo-Customized rear skirt
JDM Toyota Altezza OEM rear bumper
JDM Toyota Altezza Sports Grill
Varis carbon fiber hood
VIS carbon fiber trunk
CraftSquare carbon fiber racing mirrors
C-West eyelids
Chargespeed carbon fiber roof diffuser
Sard smoked inner taillights
Seibon carbon fiber trunk spoiler
Custom-painted flat-black headlights
Sparco hood pins

SUSPENSION:
SRT CNC machined billet 6061 aluminum rear subframe suspension brace
SRT CNC machined billet 6061 aluminum rear subframe stiffening spacers
SRT custom boxed-in control arms
Tein HA coilovers
TRD Yellow Race sway bars
TRD front strut tower brace
TRD rear strut tower brace

BRAKES:
Endless 6-pot brake calipers
Endless 345mm 2-piece front rotors
Endless brake lines
Project-Mu SCR rotors (rear)

WHEELS/TIRES:
Enkei RPF-1 wheels (18x8.5 F, 18x9.5 R)
Falken RT-615 tires (245/40/18 F, 275/35/18 R) (street)
Hoosier R6 tires (245/40/18 F, 275/35/18 R) (track)
Mickey Thompson ET Street (26x10.5x16) (drag strip)

ICE:
Eclipse AVN5435 DVD/Navigation head unit
JDM Toyota Altezza double-DIN dash kit
MB Quart speakers
JL Audio 10W3v2 subwoofer
JL Audio 250/1 amplifier
 

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Damn James good job for you and great work on SRT's part. Those are some killer numbers you're putting down. Car looks sick too. I can't wait to put your old turbo to good use. Be safe in that beast
 

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Wow that is impressive. Defenitely one of the nicer cars in the IS300 scene. How much boost? 35psi? What were the pump gas numbers?

I like the new manifold Mo. I made mine with the same concept but i dont have a CNC machine to make that perfection of a flange like you did LOL.
 

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Discussion Starter · #5 ·
Damn James good job for you and great work on SRT's part. Those are some killer numbers you're putting down. Car looks sick too. I can't wait to put your old turbo to good use. Be safe in that beast
Thanks, Jay. Good luck with the turbo!

Wow that is impressive. Defenitely one of the nicer cars in the IS300 scene. How much boost? 35psi? What were the pump gas numbers?

I like the new manifold Mo. I made mine with the same concept but i dont have a CNC machine to make that perfection of a flange like you did LOL.
Thanks. That was at 30.5 PSI. No pump gas numbers yet. Mo is waiting until after we do some runs at the track to tune it on pump.
 

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very nice, lookin clean and sexy in addition to the power
 

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Yep saw the dyno about a week ago or so before you made this thread. Very nice.
 

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wow thats just amazing! +rep for a beast
 

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30 psi? Wow. What that means is that you have a very efficient setup, and Mo has some real nice timing being added LOL. Your making more power than a Supra i saw with the same turbo. E11 is FTW!
 

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that is just insane LOL very nicely put together....get that baby on the track cant wait to see.

+rep
 

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WOW!!

Congrats on your 850hp MARK!!

How much difference did you notice driving it on the streets??
 

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Discussion Starter · #18 ·
30 psi? Wow. What that means is that you have a very efficient setup, and Mo has some real nice timing being added LOL. Your making more power than a Supra i saw with the same turbo. E11 is FTW!
The new intake manifold is much bigger and flows much better than my old one. Also, I have a pretty aggressive port/polish job on the head.


amazing work James. the new intake mani looks nicer than the previous version. i assume you're running the skinny fans. also have you or SRT thought about relocating the power steering reservoir to get a straight pipe on the manifold
Thanks, Ray. Unless Mo changed them out, I think I'm on the stock fans. And I think Mo designed the intake manifold to not have to move the power steering.

WOW!!

Congrats on your 850hp MARK!!

How much difference did you notice driving it on the streets??
Thanks Jowe. I haven't driven it on the streets yet. The car is still at SRT until we do some runs at the track. Then we'll do the pump gas tune, and I'll bring her home. :)
 

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Damn James. Your car must be one of the current premier IS300's around. I love the balance of everything you've thrown in this car and the obvious attention to detail.

Props for commissioning such an incredible beast and hats of to Mo for the continual evolution on this platform.
 
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