Home built LS1 Dyno (BTR Cam, 243 Heads)
#1
Home built LS1 Dyno (BTR Cam, 243 Heads)
I took on the task as rebuilding my first bottom end of a motor (here's the thread for backstory and pictures https://ls1tech.com/forums/pontiac-f...m-rebuild.html). I built the motor to have a nice, fat torque curve while not spending a bunch of money on heads. Turned out quite well in my opinion and put down more power and torque than my last combo with a bigger cam and ported heads. Build as follows:
-Fresh SBE ls1 rebuild
-BTR stage II cam (227/234 .613 .576 113 lsa)
-Stock 243 heads milled .035 (11.3-.4 compression ratio)
-LS7 Lifters
-.080 7.35 Pushrods
-LS2 timing chain
-BTR rocker trunion kit
-Vengence Racing ported Fast 92mm Intake
-Nick williams 90mm Throttle body
-42lb injectors
-TSP 1 7/8 Headers
-Hooker Tru Dual Blackheart Exhaust System
-GM 85mm MAF
-FTP 104mm Lid
Put down 441hp 405tq at the wheels on 16 degrees of timing. Car drives great, Andrew at Complete Street Performance did a great job tuning the car. Spent a ton of time doing drive-ability tuning and it drives much better than my last setup.
-Fresh SBE ls1 rebuild
-BTR stage II cam (227/234 .613 .576 113 lsa)
-Stock 243 heads milled .035 (11.3-.4 compression ratio)
-LS7 Lifters
-.080 7.35 Pushrods
-LS2 timing chain
-BTR rocker trunion kit
-Vengence Racing ported Fast 92mm Intake
-Nick williams 90mm Throttle body
-42lb injectors
-TSP 1 7/8 Headers
-Hooker Tru Dual Blackheart Exhaust System
-GM 85mm MAF
-FTP 104mm Lid
Put down 441hp 405tq at the wheels on 16 degrees of timing. Car drives great, Andrew at Complete Street Performance did a great job tuning the car. Spent a ton of time doing drive-ability tuning and it drives much better than my last setup.
Last edited by Austin95; 05-10-2017 at 09:16 AM.
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#8
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Pretty sweet! that's really good numbers for stock 243 heads and a good street cam! Nicely Done! Mind posting up the chart?
#11
Thanks man! Yeah, I could be wrong about the timing, but I don't really care too much, its running great (I enjoy the mechanical side of the motor more than electrical as you probably assumed lol). 370 build with some boost is definetley going to be my next challenge!
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#16
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Was searching for something and came across this. Excellent power from that combo. I bet it drives super excellent. The added compression really helps.
I just wonder what a set of AI 226 or TEA Stage 1s would do here? Probably push you up over 470 without giving up any torque (and probably adding peak torque).
I just wonder what a set of AI 226 or TEA Stage 1s would do here? Probably push you up over 470 without giving up any torque (and probably adding peak torque).
#19
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Nice work keeping the Hot Rod spirit alive! Nice work Austin