26 psi on stock bottom end?
At the time I was running a 9.5 PI and when I locked it bad things happened to the converter. I'm sold on the Yank stuff now. Got a PT3600 and I love it. I've had 11 different converters from PI and PTC in the truck in the last yr and a half. Switched to Yank and never looking back.
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On my aluminum 5.3 I ran 27-28psi with ls9 cam and ported 317s with twin turbonetics billet T7668s. It would bend rods at 29-30psi and 15* of timing. Switched to Tooley TFS heads and a Lil John cam and it would bend rods at 22psi and 16* of timing. The rods would bend in high gear at 6500ish rpm. E85
With injectors scaled at 218# (FIC2000) and 45psi base pressure IDC would get up up 78%. Which is estimated at 1050-1100whp. After the cam and head swap IDC was about the same but with a lot less boost. Now the motor is forged and base fuel pressure is 55psi. Tune is way more aggressive and IDC is up to 110% at 28psi. I've got it tuned to 32psi so far but haven't had time to up fuel pressure again to bring IDC back down. Plus its mainly street driven and the streets have been cold and traction is limited.
At the time I was running a 9.5 PI and when I locked it bad things happened to the converter. I'm sold on the Yank stuff now. Got a PT3600 and I love it. I've had 11 different converters from PI and PTC in the truck in the last yr and a half. Switched to Yank and never looking back.
How much load are the engine dynos used in the magazine articles putting on these motors? Id assume no where near as much as a 3200+ lb chassis would?
Also both the "big bang" articles i read the engines were Making north of 500 crank hp NA. Dont see that much on the typical stock builds here. I'd be amazed if my JY 5.3 made 300 at the crank NA.
With an S475 I ran 25lbs on an OEM bottom end gen3 (weak rods like the ls1) motor. It was low compression (8.6:1) with 317 heads and dished piston 5.3 on E85. Timing chain eventually failed, but I don't think the rods were in any danger on my setup.
840ish whp going by 1/8th mile weight/trap.
786ish WHP going by 1/4 weight/trap.
Also both the "big bang" articles i read the engines were Making north of 500 crank hp NA. Dont see that much on the typical stock builds here. I'd be amazed if my JY 5.3 made 300 at the crank NA.
With an S475 I ran 25lbs on an OEM bottom end gen3 (weak rods like the ls1) motor. It was low compression (8.6:1) with 317 heads and dished piston 5.3 on E85. Timing chain eventually failed, but I don't think the rods were in any danger on my setup.
840ish whp going by 1/8th mile weight/trap.
786ish WHP going by 1/4 weight/trap.
Last edited by Forcefed86; Jan 20, 2014 at 09:49 AM.
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How much load are the engine dynos used in the magazine articles putting on these motors? Id assume no where near as much as a 3200+ lb chassis would?
Also both the "big bang" articles i read the engines were Making north of 500 crank hp NA. Dont see that much on the typical stock builds here. I'd be amazed if my JY 5.3 made 300 at the crank NA.
With an S475 I ran 25lbs on an OEM bottom end gen3 (weak rods like the ls1) motor. It was low compression (8.6:1) with 317 heads and dished piston 5.3 on E85. Timing chain eventually failed, but I don't think the rods were in any danger on my setup.
840ish whp going by 1/8th mile weight/trap.
786ish WHP going by 1/4 weight/trap.
Also both the "big bang" articles i read the engines were Making north of 500 crank hp NA. Dont see that much on the typical stock builds here. I'd be amazed if my JY 5.3 made 300 at the crank NA.
With an S475 I ran 25lbs on an OEM bottom end gen3 (weak rods like the ls1) motor. It was low compression (8.6:1) with 317 heads and dished piston 5.3 on E85. Timing chain eventually failed, but I don't think the rods were in any danger on my setup.
840ish whp going by 1/8th mile weight/trap.
786ish WHP going by 1/4 weight/trap.