LS3 All Motor Dyno Results
#21
My understanding is that when enough alcohol % is detected in the fuel, timing is added, above and beyond the "high" octane table. I believe it runs 4-6 degrees additional timing, depending upon RPM. I do not know the total timing advance. I will need to bring Dave Steck into the convo this is his territory.
#22
10 Second Club
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I think I could free up some power for sure, btw my setup runs out of power after 6200 or so as well. I have a fast 102/102 setup with speed deinsity and 104 lid so no restrictions. also ported cnc ls3 heads. I wonder if its the ls3 heads themselves holding power back after 6200 to 6300. I have a descent size cam and Im not so sure going bigger will help. it is on a 112 +3 not sure if that takes the rpms down some or not. I would love to see my motor make power to 6700 because it can run 7k all day long
#24
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Hey Man good numbers, I know how you feel about your goal however with the cam you have you did great, in my opinion with the heads you have and 11.5 compression on e85 and your intake system (hoping your cold air intake is not restrictive you could do easy 525 whp.
I would have Camhelp@guerragroup.com spec the cam true their software and change push rods to 3/8 by .082 wall.
You would see a big difference mainly from the cam, have the cam spec for 6,800 shift point 7,400 red line.
I would have Camhelp@guerragroup.com spec the cam true their software and change push rods to 3/8 by .082 wall.
You would see a big difference mainly from the cam, have the cam spec for 6,800 shift point 7,400 red line.
#25
Launching!
Join Date: May 2013
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I think I could free up some power for sure, btw my setup runs out of power after 6200 or so as well. I have a fast 102/102 setup with speed deinsity and 104 lid so no restrictions. also ported cnc ls3 heads. I wonder if its the ls3 heads themselves holding power back after 6200 to 6300. I have a descent size cam and Im not so sure going bigger will help. it is on a 112 +3 not sure if that takes the rpms down some or not. I would love to see my motor make power to 6700 because it can run 7k all day long
#31
6.0 .030 over
l92 heads milled .015
cometic .040 gaskets
btr 226 231
truck intake
ls7 90mm t
flat tops no reliefs
just have open headers on it now
factory air box which is restricting and no underdrive pulley
392 hp 369 tq thru auto trans and transfer case 285 tires stock converter and rear end
l92 heads milled .015
cometic .040 gaskets
btr 226 231
truck intake
ls7 90mm t
flat tops no reliefs
just have open headers on it now
factory air box which is restricting and no underdrive pulley
392 hp 369 tq thru auto trans and transfer case 285 tires stock converter and rear end
#32
TECH Fanatic
I had similar issue with an over the radiator, took out the filter and 50rwhp turned up. Now running a large rotofab cone..!
Easy to test just dyno with filter out.
#33
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Hmm would've expected some better numbers out of that setup, and I agree it doesn't seem to be carrying past peak too well.
Those numbers are achievable by a stock headed stock intake LS3 (well maybe not the torque). With a ported FAST and aftermarket Trickflows I thought it would carry the power better.
Those numbers are achievable by a stock headed stock intake LS3 (well maybe not the torque). With a ported FAST and aftermarket Trickflows I thought it would carry the power better.
#34
my g8 gt, never been dynoed, but i trap the same mph as you at the 1/4 mile. pat g cam stock heads stock intake 2.92 gears and the stock converter with 2.0 60 fts. 12.0 @ 118 so yeah something is up with your car, might want to look into a RCR or Pat G cam. good luck
#35
#36
Staging Lane
That looks more like it!
Glad you found a simple solution to your airflow problem! It's likely worth re-tuning if the airflow into the MAF was disturbed by the obstruction.
#38
Staging Lane
#39
Wow, that's ugly! I'm no expert but from what I do know, tumbling air flow through a MAF will greatly affect the accuracy of its readings. Hopefully your tune was based on a good MAF calibration and removing that restriction got you back to where the tune expected the MAF to be.
#40
LS1Tech Co-Founder
iTrader: (34)
Nice combo.
@ OP, keep working on the drag racing side of things, I'd expect you to run 122-124 MPH now.
My 2010 Camaro with bolt-ons converter and 3.91 gear trapped 115 MPH last year. Unlocked. I just did h/c and expect to go 124 this year.
How much timing can you run on E85? I'm tempted to mess with E85 myself at some point.
@ OP, keep working on the drag racing side of things, I'd expect you to run 122-124 MPH now.
My 2010 Camaro with bolt-ons converter and 3.91 gear trapped 115 MPH last year. Unlocked. I just did h/c and expect to go 124 this year.
How much timing can you run on E85? I'm tempted to mess with E85 myself at some point.