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Engine:
TSP LS3 416ci (416CID, 58x K1 Crank, Compstar Rods, Wiseco 4.070 -15cc, ARP Main Studs, Boosted)
10:1 SCR
AI280CC LS3 heads/BTR.660 Ti
LS3 Ported intake and NW102 TB
235/231 .6XX/.6XX 115LSA (may change this, but worked really well on the single setup).
OE Lifters
LS3 rockers with Straub Trunnion upgrade
Melling Oil pump (hi volume)
Fuel: 93 octane
1000CC injectors
ZL1 Pump
ADM FPCM
Alky Control Dual Nozzle Kit (15+5) - May go up on the 2nd nozzle.
Power Added:
Huron Twin Turbo Low mount
Precision 6266's T4 .81
PW46mm Gates
A2A FMIC
Turbosmart BOV
Turbowerx Exa Pump
Ignition:
Granatelli coils (already have them)
br8's
Wires TBD
Tranny:
Stock M6 tranny
Street Slayer Billet Twin
New Slave
Tick speed bleeder
Rear:
Stock for now
3.45 gears
DSS aluminum 1 piece driveshaft
Tires:
20x11
Nitto 305/35-20 NT05R
Didnt hook worth a **** with the single kit on low power, so I will be upgrading to something with a little more sidewall. I just dont want to have to ditch the rear stock brakes... so I think 17" wheel is the smallest I can go.
Obviously there are lots of things I should upgrade and build for strength (fuel system, tranny and rear), and as money comes I will do that.
Went to the dyno yesterday and found the limits of the Street Slayer Carbon Billet Twin clutch, but didn’t reach the limits of the single ZL1 fuel pump lol.
Clutch decided that 900rwtq was all it would take lol. I didn’t get to push the car to 18psi like I wanted (I didn’t even play with the timing either). Good results though. Full boost at peak tq and then it fell off a couple lbs by peak power. Timing and fuel was as follows13 deg pk tq 15 deg pk hp) and (11.0 AF @ pk tq and 11.5 AF @ pk hp). So alot left in it from a tuning perspective.
That doesn't add up to support 840hp on any fuel on any engine. It'd need to flow a hell of a lot more than that
I run M15 and M5 nozzles and spray 100% meth. I run 1000cc injectors and 68psi fuel pressure. I pulled a ton of fuel out when the meth comes on. The meth is the only reason this pump stretches as far as it does on 93.
So I pulled the accel extreme heat plug wires off (with ceramic boots) and two of the 8 wires had the terminal rip out and stay on the plugs. These wires had been off and on my gto multiple times before going on the camaro for the dyno.
on the ride home the log showed 14:1 A/F on my 3rd gear pull. Make me wonder if spark was weak and showed a false lean.
So I pulled the accel extreme heat plug wires off (with ceramic boots) and two of the 8 wires had the terminal rip out and stay on the plugs. These wires had been off and on my gto multiple times before going on the camaro for the dyno.
on the ride home the log showed 14:1 A/F on my 3rd gear pull. Make me wonder if spark was weak and showed a false lean.
This happened to me twice also. I tried to use their repair kit and I couldn't get it to work. I ended up buying another set of the wires to keep on hand and replacing when necessary.
Pulled the Billet Twin and went with the Monster Triple. Got it back on the dyno yesterday and with 6psi springs in the gate, I was only able to pull the boost to 15psi with EBC.
Car ran well... made 926rwhp/883rwtq @ 15psi.
Injector DC was 70% @ 6k rpm (peak power was 5700rpm).
I believe the intake/filters is choking the setup up top... but its fine for now.
These are STD numbers... I'll update once I have the SAE numbers.
Next steps is increasing the WG springs so I can pull the boost to 20psi with the EBC.
Nice setup. Popular opinion is the ls3 block is only good to 1000ish rwhp. You are really pushing that limit so I’m curious to see how it does at 20 psi.
Not knocking the block my build is an LS3 block as well, but stock stroke and a Procharger.
Nice setup. Popular opinion is the ls3 block is only good to 1000ish rwhp. You are really pushing that limit so I’m curious to see how it does at 20 psi.
Not knocking the block my build is an LS3 block as well, but stock stroke and a Procharger.
I hear ya loud and clear. For me, I'd like to see what power it can make, but real world use is going to be set lower.
EBC off - 10psi gate
EBC Setting B - 15psi
EBC Setting A - 20psi
I will probably fluctuate between EBC off and Setting B most times.
With these results I am really swaying on going with a smaller set of turbos. I was worried about these being to small, I would love to see how you make out with on 20-25lbs of boost.
Unfortunately the fuel limits were reached. It was pretty warm out too...
Timing was being pulled due to the temps in the shop... at 15psi I was getting 13.5 degrees timing vs 15 degrees last time. We didnt want to start modifying the timing tables for coolant temp.
20psi - STD 990rwhp/1031rwtq.... but stopped the run at 5400rpm because it was leaning out... timing at pk tq 12 deg, 13.5 deg pk hp, 11.7-12.0 A/F. Injector DC over 80% and fuel pressure was dropping off to 45psi during the run. It wasnt happy as hp peaked at 5100rpm as seen in the graph.
I called it quits at that point as I'll need to address the fuel system... Not bad for 1000cc injectors, FPCM and ZL1 pump. Meth really let me stretch this fuel system.
FYI... we were very conservative on the tune thru all boost levels as well were trying to get to the high boost. So we were high 10.8-11.2 thru the lower boost runs.
Here were the SAE numbers with the conservative tune:
Conservative timing... need more fuel... made about 15 pulls... will go back after I address the fueling. She will absolutely do 1050rwhp @ 20psi for sure.
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416ci LS3 TT 6266's 
13 deg pk tq 15 deg pk hp) and (11.0 AF @ pk tq and 11.5 AF @ pk hp). So alot left in it from a tuning perspective.
