Initial dyno results for Magnacharged 69 SS
Thread Starter
Joined: Nov 2001
Posts: 32,987
Likes: 58
From: Houston, TX
Took the '69 to MTI tonight (we were there until 9pm!) and did some drivability tuning on the car. Put it on the wideband and did a series of lower rpm tests to check everything out.
Finally got things somewhat going and it put down:
506 rwhp @ 5500 rpm
501 ft-lbs @ 4500 rpm
The blower makes over 400 ft-lbs at just over 2000 rpm! damn
Anyways, I had some leaking header collector slip-on flanges and it was messing with the O2 readings (sucking in fresh air at the collector). So, we couldn't push it further. I'll get those slip-on crappers removed and weld the pipe up on Saturday and take it back for round 2 of the tuning.
I'm happy with 500/500, as it was my initial goal with this 93 octane tune. I'm thinking it could probably hit 530+ with some more tweaking, maybe more.
Boost was 8.5 psi indicated. Fuel pressure a steady 60 psi.
348ci LS6 forged internal (MTI)
MTI Stage 2R LQ4 heads (9.5CR)
230/230 .581 114 cam
Magnacharger with intercooler (based on new GTO kit)
Finally got things somewhat going and it put down:
506 rwhp @ 5500 rpm
501 ft-lbs @ 4500 rpm
The blower makes over 400 ft-lbs at just over 2000 rpm! damn

Anyways, I had some leaking header collector slip-on flanges and it was messing with the O2 readings (sucking in fresh air at the collector). So, we couldn't push it further. I'll get those slip-on crappers removed and weld the pipe up on Saturday and take it back for round 2 of the tuning.
I'm happy with 500/500, as it was my initial goal with this 93 octane tune. I'm thinking it could probably hit 530+ with some more tweaking, maybe more.
Boost was 8.5 psi indicated. Fuel pressure a steady 60 psi.
348ci LS6 forged internal (MTI)
MTI Stage 2R LQ4 heads (9.5CR)
230/230 .581 114 cam
Magnacharger with intercooler (based on new GTO kit)
Thread Starter
Joined: Nov 2001
Posts: 32,987
Likes: 58
From: Houston, TX
500 is alot on the street. My last LS1 project (the blue Formula in my sig) put down 525/519 on motor alone. I couldn't floor it until the top of 3rd gear or it would just roast the tires.
But, that is fun
But, that is fun
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Thread Starter
Joined: Nov 2001
Posts: 32,987
Likes: 58
From: Houston, TX
Hey Levi, did you "S1" the Cannibal yet? MUAHAHAHA! Get ready for some more fun....
Payne, not sure on the weight yet. I'll find out when I go to a track. The car is mostly a cruise-night roller, but I plan on drag racing it as well. 6-point cage coming soon, as well as drag wheels/tires.....and nitrous!
Payne, not sure on the weight yet. I'll find out when I go to a track. The car is mostly a cruise-night roller, but I plan on drag racing it as well. 6-point cage coming soon, as well as drag wheels/tires.....and nitrous!
I don't think the car even needs nitrous, Tony.
I think it'll clutter up the engine bay too much. The current setup is so clean and concise. I really think it's awesome as is
I think it'll clutter up the engine bay too much. The current setup is so clean and concise. I really think it's awesome as is


