5.3L+224R 323hp/302tq
07-17-2015, 02:43 PM
#1
5.3L+224R 323hp/302tq Local performance shop had a dyno day and the Nova laided down 323hp and 302lbft! Not shabby for a junkyard motor!
Details:
-2001 5.3 with 110K’ish miles
-Flexfuel intake and 36lb/hr injectors
-4” custom air intake, K&N
-Ebay 3rd gen SS headers, 1 ¾” Primary, 3” collectors
-3” straight pipes to Thrust mufflers dumped at the axle
-Rebuilt TH350
-2000RPM converter
-Original 2.73 gears
-TSP224R .581”/.581” 112LSA
-Comp Chromoly 7.400” pushrods
-Comp 918 springs
Last summer with a Demon 750DP and dual plane it made 310hp/300tq. The 2 dynos are overlaid for comparison. I gained on the peak numbers, but am loosing a little in the mid-range. Tuning suggestions? Enjoy and thanks!
Links to my previous dyno runs:
No cam, carb’d:
https://ls1tech.com/forums/dynamomet...all-stock.html
Carb’d with 224R:
https://ls1tech.com/forums/dynamomet...-cam-swap.html
Details:
-2001 5.3 with 110K’ish miles
-Flexfuel intake and 36lb/hr injectors
-4” custom air intake, K&N
-Ebay 3rd gen SS headers, 1 ¾” Primary, 3” collectors
-3” straight pipes to Thrust mufflers dumped at the axle
-Rebuilt TH350
-2000RPM converter
-Original 2.73 gears
-TSP224R .581”/.581” 112LSA
-Comp Chromoly 7.400” pushrods
-Comp 918 springs
Last summer with a Demon 750DP and dual plane it made 310hp/300tq. The 2 dynos are overlaid for comparison. I gained on the peak numbers, but am loosing a little in the mid-range. Tuning suggestions? Enjoy and thanks!
Links to my previous dyno runs:
No cam, carb’d:
https://ls1tech.com/forums/dynamomet...all-stock.html
Carb’d with 224R:
https://ls1tech.com/forums/dynamomet...-cam-swap.html
07-19-2015, 09:49 AM
#2
Looks good. I doubt you'll get that bottom as high as the duel plane intake though.
Why didn't you go with a custom cam spec'd for your needs? Patrick G or Martin @ TICK would been a logical choice in my book.
Do you plan on any other mods? How much has your mileage increased by going EFI?
Why didn't you go with a custom cam spec'd for your needs? Patrick G or Martin @ TICK would been a logical choice in my book.
Do you plan on any other mods? How much has your mileage increased by going EFI?
07-20-2015, 10:18 AM
#3
Looks good. I doubt you'll get that bottom as high as the duel plane intake though.
Why didn't you go with a custom cam spec'd for your needs? Patrick G or Martin @ TICK would been a logical choice in my book.
Do you plan on any other mods? How much has your mileage increased by going EFI?
Why didn't you go with a custom cam spec'd for your needs? Patrick G or Martin @ TICK would been a logical choice in my book.
Do you plan on any other mods? How much has your mileage increased by going EFI?
If I was running a car intake maybe I’d believe the dual plane intake, but I doubt the ugly, long runner truck intake is the main culprit chopping off the mid-range legs. My tuning buddy and I are going to play with fuel and timing chasing the last few ponies. And yes a custom cam cut would be preferable, but it’s just not in the budget, I picked up the 224 used on here for cheap. In the future I may consider a custom grind, but I am stiff making changes to the chassis. Soon I’ll be swapping to 3.73 gears, and in the next couple years I’m planning a T56 swap.
07-25-2015, 01:38 PM
#5
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Nice! There is no flexfuel intake its the injectors that are different thats pretty much it. You either have 75mm 3 bolt tb or 4 bolt 87mm throttle body
My 06 silverado 4x4 stock exhaust no bolt ons
03 5.3 i put flat tops in it, 10.5:1 compression tfs stage 1 cam 216-220 .560lift 114lsa tfs pushrods stock rockers
5.3 heads with a simple bowl port job 1.9-1.5 valves, stock 75mm intake and tb
It made 305rwhp 310rwtq in 2nd gear 3400stall unlocked 3.42 gears 265/70/17 tire, Mustang Dyno, its out now getting a bigger cam, ported AFR 205's,headers, and TBSS intake setup and 11.5:1 comp, going for 400+rwhp
My 06 silverado 4x4 stock exhaust no bolt ons
03 5.3 i put flat tops in it, 10.5:1 compression tfs stage 1 cam 216-220 .560lift 114lsa tfs pushrods stock rockers
5.3 heads with a simple bowl port job 1.9-1.5 valves, stock 75mm intake and tb
It made 305rwhp 310rwtq in 2nd gear 3400stall unlocked 3.42 gears 265/70/17 tire, Mustang Dyno, its out now getting a bigger cam, ported AFR 205's,headers, and TBSS intake setup and 11.5:1 comp, going for 400+rwhp
