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370-TFS GenX 255's-Hi Ram-S400-th400-9"

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Old 07-20-2013, 03:24 PM
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Default 370-TFS GenX 255's-Hi Ram-S400-th400-9"

Car was previously just a 5.3 with cam and tc78 which only satisfied me for a few weeks till I decided I needed to step my game up! That combo is going in a clean G body tthat I will do later!

Engine:
Iron 370
Arp Main studs
eagle H-Beam rods
mahle pistons 10.0:1 at 69cc
Stock rockers with Trunion Upgrade
2**/2** 11*

Induction:
Holley Hi Ram 92mm to Stock TB
6 Bolt Trickflow Genx 255 ls3 heads
ls9 Gaskets
ARP hardware

Alot of people are curious about the heads that what they flow. these heads actually have a smaller intake and exhaust port than the factory ls3/lsa heads and an even smaller port than all of the CNC'D rectangular port heads. here is a little info on the heads if anyone is interested.

Increased Piston to Valve Clearance (12* Valve Angle)
Includes Billet Rocker Arm Rail Mounts for use with OEM LS3 1.7 Rocker Arms
Uses Powdered Metal Valve Guides
Requires longer Pushrods (7.750")
Intake Port : 255cc
Exhaust Port : 87cc







Turbo kit:
Huron Speed T6 hotside
2.25" Crossover fully divided
S475 96mm Turbine with 1.32 AR
single 5" DP out bumper
VS Racing 60mm Gate
RPS BOV
Treadstone top outlet TRST9 1300hp intercooler

Fuel:

93 pump
AIS 3 gallon trunk mount kit with dual nozzles

Fuel System:

FIC 1600cc
Fuel lab 1:1 Regulator
Either magnafuel 4303 or Squash Dual 450's (leaning towards the squash setup)
-10 Feed
-8 Return


Drivetrain:

Built Th-400 with brake
PTC Converter Specd by Dusty
Moser 9" W/ 3.50's



Old pic of the car in its previous turbo build


old TC78 next to the new s480! its only 2mm bigger


yes i am aware those are the wrong studs, it was just for mocking purposes!


Brian Tooley .660 valve springs




Mocking up the turbo on my old motor since it had the balancer on it already...had to make sure it would clear!


PLENTY of room!

Last edited by slowlsx; 09-19-2013 at 11:23 PM.
Old 07-20-2013, 03:49 PM
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Damn that going to be my build almost exactly! , I'm excited to see your build and results.

Couple of questions. Are you retaining AC or no?
Also what do you have planned for cooling?
And last is that the Mahle speed pack with rings you are running or another piston of theres?

Last edited by GarrettM; 07-20-2013 at 03:55 PM.
Old 07-20-2013, 03:56 PM
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Lol yea I would think this is a pretty common setup but cant find anyone with it, closes I have seen is pt88 with lsa but not the hi ram.
Old 07-20-2013, 05:39 PM
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Yeah I thought the same thing but couldn't find another. Proven parts though so should be a lethal combo.
Old 07-20-2013, 07:26 PM
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Those LSA heads will flow good IMO.
Old 07-20-2013, 11:20 PM
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Originally Posted by GarrettM
Damn that going to be my build almost exactly! , I'm excited to see your build and results.

Couple of questions. Are you retaining AC or no?
Also what do you have planned for cooling?
And last is that the Mahle speed pack with rings you are running or another piston of theres?

This is the Non AC kit version
Cooling as in radiator or intercooler?
Honestly im not sure if its the speed pack but it is their 4032 forged piston and its coated.
Old 07-20-2013, 11:25 PM
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By cooling I mean are you keeping stock rad or running the griffin, and what kind of fan set up will you be using?
Old 07-21-2013, 12:35 AM
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Originally Posted by GarrettM
By cooling I mean are you keeping stock rad or running the griffin, and what kind of fan set up will you be using?
Im using the common griffin radiator that everyone is usingand it is stood up, fans are dual derales.
Old 07-21-2013, 06:52 AM
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i would love to run those LSA heads! only if i didnt have to change the whole entire intake
Old 07-21-2013, 09:05 AM
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Good looking setup, I'm pretty sure any silver F-Body on Black RT-S is my favorite car!
Old 07-21-2013, 10:05 AM
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Geeeez... That thing dwarfs the 78!

Looking forward to seeing this build!
Old 07-21-2013, 10:52 AM
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Nice build gonna be mean as hell.
Where did you get the T4 to T6 adapter? any pics?
Old 07-21-2013, 12:26 PM
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Originally Posted by venom ws7
Nice build gonna be mean as hell.
Where did you get the T4 to T6 adapter? any pics?
I ordered It off ebay for about 30$, im still waiting for it to arrive along with k member, SFC, and a few other odds and ends!
Old 07-21-2013, 11:33 PM
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Intake is Almost as big as the motor. Lol love it. Where did you get your LSAs?
Old 07-22-2013, 12:07 AM
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Originally Posted by GarrettM
Intake is Almost as big as the motor. Lol love it. Where did you get your LSAs?

I believe his screen name is bergers or something like that. I purchased them bare for around 400 bucks. As far as I remember he gets them very often!


This week we will be removing the cowl trim to drop weight and make room for the intake. Will post pics as progress moves along.
Old 07-22-2013, 09:28 AM
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nice build what intercooler is that and what size inlets /outlets
Old 07-23-2013, 09:33 PM
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Originally Posted by 91LSFBODY
nice build what intercooler is that and what size inlets /outlets
3" inlet/outlet as far as size i want to say 31x12x4 but i am not certain, it is the intercooler that comes with huron speeds turbo kits.
Old 07-23-2013, 09:38 PM
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Well a little update!

I got a wild hair up my *** and decided to have the LSA heads sent off to TEA for their CNC program since i thought it was a heck of a deal! Also decided why not send my s480 to Forced Inductions and have them turn it into the baddest 80mm available with their billet wheel upgraded!

Old 07-23-2013, 09:49 PM
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That billet s480 is supposed to spool super quick. Congrats! Subd.
Old 07-23-2013, 09:52 PM
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Originally Posted by GarrettM
That billet s480 is supposed to spool super quick. Congrats! Subd.
yea between the wheel upgrade and cnc work on the heads i spent right at 1k and i think it was money well spent!

Im not really to sure what to expect out of this combo but i would like to go 150 without really pushing it!


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