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RealQuick's 416ci TT Dyno 1 Attachment(s) Dyno Session after new clutch... 93 octane and meth. Due to the 6psi wastegate springs in the gate, I could only turn it up to 15psi with the Truboost. I will be going back in a few days with more spring and retune for 20psi. Here are the numbers at 15psi STD #'s: 926rwhp/883rwtq SAE #'s: 905rwhp/863rwtq https://cimg7.ibsrv.net/gimg/ls1tech...840ce7fee4.jpg 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 Stock rails/lines Alky Control Dual Nozzle Kit (15+10) 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 Monster Triple Disc New Slave Tick speed bleeder Hurst Shifter Rear: Stock for now 3.45 gears DSS aluminum 1 piece driveshaft Tires: 20x11 Nitto 305/35-20 NT05R 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. For now I need a new motor and turbo setup, so that is the focus first. |
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. Raw numbers weren't bad... 18psi - 945rwhp/983rwtq timing at pk tq 12 deg, 13.5 deg pk hp, 11.5-11.8 A/F 20psi - 990rwhp/1031rwtq.... but stopped the run at 5400rpm because it was lean 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: 8psi - 660rwhp/744rwtq (wastegate) 12deg/15 deg and 10.8-11.2 A/F 15psi - 872rwhp/894rwtq 12deg/13.5 deg 11.0-11.4 A/F 18psi - 923rwhp/960rwtq 12deg/13.5 deg 11.5-11.8 A/F 20psi - 966rwhp/1006rwtq (partial run) 12deg/13.5 deg 11.7-12.0 A/F Conservative timing... need more fuel... made about 15 pulls... will go back after I address the fueling. She will absolutely do 1050rwhp for sure. https://cimg7.ibsrv.net/gimg/ls1tech...797913b321.jpg https://cimg0.ibsrv.net/gimg/ls1tech...2e8c3f2ccf.jpg |
Idle: Dyno: 2nd gear quick hits on 8psi: |
Nice man! |
Why does it seem like it peaks so early? Peaking at 5800 with LS3 heads? |
Originally Posted by ddnspider
(Post 20379186)
Why does it seem like it peaks so early? Peaking at 5800 with LS3 heads? |
Originally Posted by G Atsma
(Post 20379190)
In Post #2 he mentions hitting the fuel limit. Would that do it? |
Originally Posted by ddnspider
(Post 20379204)
Ah, missed that the run was abandoned at 5400. Makes sense now. Must be quite a bit more in it! |
Hey guys, thanks for the interest. A couple things going on… fueling for sure is why I didn’t push the car. The HP curve being flat and peaking early is due to the intake setup I believe (3 feet of 3” piping and small filter feeding each turbo). https://cimg8.ibsrv.net/gimg/ls1tech...ecd2b89ba.jpeg https://cimg9.ibsrv.net/gimg/ls1tech...0335fd23e.jpeg https://cimg1.ibsrv.net/gimg/ls1tech...bb91150e3.jpeg attached are the runs for 8psi, 15psi, 18psi and the partial 20psi pull. All the runs peaked way early. |
Dang those inlet pipes are brutal. Would love to see it with no piping and some fuel. |
Those snails are being CHOKED!! |
I have a BAP installed but wont hit the dyno until after the winter. I will definitely try and ditch the pipes and mount filters right on the turbos. |
If the pipes are really 2.5" that is pretty small. Is the boost curve flat all the way to redline? |
Originally Posted by slowride
(Post 20399468)
If the pipes are really 2.5" that is pretty small. Is the boost curve flat all the way to redline? boost is pretty much flat… |
Updates... Installed BAP and removed those CAI's in the wheel wells (3" tubes with 4 90 degree bends) and fit stubby 4" filters right on the turbos. I am thinking this will really improve about and eliminate the power peaking super early (5500rpm). For those with Huron kits wanting to do this, I used K&N RU-2510. https://cimg5.ibsrv.net/gimg/ls1tech...995407a136.jpg https://cimg6.ibsrv.net/gimg/ls1tech...61baab4dd5.jpg https://cimg7.ibsrv.net/gimg/ls1tech...f83fda8745.jpg |
How are the operating temps looking? Seems like a lot of turbo guys struggle to keep the engine temps under control. |
High 190's. I run a 160 thermostat and I adjusted the fan speeds. |
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