How much max timing are you running?
08-27-2014, 01:29 PM
#22
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Tune up thats been on the truck about a year now.
How much boost: 20psi
what type of boost: T4 S480/92 1.10
What type of fuel: pump E85
target AFR: 11.0-11.5 on gas scale
compression: 9.5:1 5.7L, stock 317s, LS9 head gaskets
max timing: 15.0 thru peak Tq, 17.0 up top thru 7,000
How much boost: 20psi
what type of boost: T4 S480/92 1.10
What type of fuel: pump E85
target AFR: 11.0-11.5 on gas scale
compression: 9.5:1 5.7L, stock 317s, LS9 head gaskets
max timing: 15.0 thru peak Tq, 17.0 up top thru 7,000
08-27-2014, 03:33 PM
#24
I'm running stock valves as well. Comp Cams 249-269210-KIT dual setup with shims installed for more seat pressure, not sure what size it was off hand. Also have the Comp Trunnion Kits 13702. I aim for 6800 but with no shift light I have hit the 7000 limiter enough to think there was a reward for it, especially on the street.
08-27-2014, 08:22 PM
#25
It's great to see so many replies to this. I wish there were more supercharger guys who would chime in... seems theyre all in hiding. Turbo's rule the roost now anyway... I know I'll never compete on the big end with you guys.
I may try 16 on one of my next test runs... possibly 17 as revs climb to help with top end even more. I used to be able to pull 6300 RPM with the cam NA but the last new times out it kind of felt as though it was dropping off a little over 6k... maybe more timing will help that.
I may try 16 on one of my next test runs... possibly 17 as revs climb to help with top end even more. I used to be able to pull 6300 RPM with the cam NA but the last new times out it kind of felt as though it was dropping off a little over 6k... maybe more timing will help that.
How much boost: 16lbs
what type of boost: 2.9 whipple
What type of fuel: Cali's best 91 pump gas(no meth)
target AFR: 10.8-11.4 AEM Wideband (looking into an NGK)
compression: 9.7:1 6.2, CNC LPE LSA heads, LS9 head gaskets
max timing: average 16-16.5*. Previous smaller cam and smaller exhaust I was at 19*. Slowly working my way back to that.
08-27-2014, 10:30 PM
#26
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I'm running stock valves as well. Comp Cams 249-269210-KIT dual setup with shims installed for more seat pressure, not sure what size it was off hand. Also have the Comp Trunnion Kits 13702. I aim for 6800 but with no shift light I have hit the 7000 limiter enough to think there was a reward for it, especially on the street.
I set my rev limit to 6200 mainly to protect my transmission. I have patriot gold springs with stock valves and comp cam. Stock rockers
Boost=15psi through S480/94 turbo
CR: 9.5 with stock 317 heads, stock 6.0L MLS gasket and 5.7L aluminum built short block. Stock intake and TB.
AFR on my in cab WB gauge shows 10.8-11.
91 octane pump gas
I will have to get to my tuner about timing. It was tuned using EFI live while I have only HP tuners, so, I could not pull the tune.
Last edited by Denali08; 08-28-2014 at 09:15 AM.
08-30-2014, 09:03 PM
#28
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I just had my Black Bear Tune checked when Justin was in town.
My truck is a 2002 2500HD LQ4 with a ProCharger supercharger and Snow Performance water/methanol injection, 8.1 liter marine injectors but the internals are all stock.
On the test drive the computer was pulling the timing to 6* BTDC with 7lbs boost and water/methanol spraying. Justin asked what fuel I had and I said Speedway because they have good coffee. I was told they had bad fuel.
I refueled with Sunoco 94 octane and a 1 liter bottle of 108 octane boost with MMT now my Scan Gauge II at 5-7lbs of boost is saying 17* BTDC and I added 1 liter of methanol to about 2 gallons of blue juice for the Snow Performance sprayer.
My plugs are AC Delco copper, gapped at 0.035. We looked into the cylinders and found no unusual carbon deposits.
My plan is to run through this tank and see what happens with just Sunoco 94 and NO MMT added.
My truck is a 2002 2500HD LQ4 with a ProCharger supercharger and Snow Performance water/methanol injection, 8.1 liter marine injectors but the internals are all stock.
On the test drive the computer was pulling the timing to 6* BTDC with 7lbs boost and water/methanol spraying. Justin asked what fuel I had and I said Speedway because they have good coffee. I was told they had bad fuel.
I refueled with Sunoco 94 octane and a 1 liter bottle of 108 octane boost with MMT now my Scan Gauge II at 5-7lbs of boost is saying 17* BTDC and I added 1 liter of methanol to about 2 gallons of blue juice for the Snow Performance sprayer.
My plugs are AC Delco copper, gapped at 0.035. We looked into the cylinders and found no unusual carbon deposits.
My plan is to run through this tank and see what happens with just Sunoco 94 and NO MMT added.
