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CC Advertisers
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08-09-2012, 12:18 AM
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CC Member
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Join Date: Jul 2007
Location: Sydney Australia,
NSW
Cobra Make, Engine: RMC with 6 litre 307KW LS2, Comp Cam, 348rwhp & 532.5 ftlb of torque with 6L80E Tiptronic Transmission
Posts: 1,400
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Not Ranked
A Day at the Dyno.
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08-09-2012, 04:12 AM
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CC Member
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Join Date: Feb 2002
Location: Alice Springs, central Australia,
NT
Cobra Make, Engine: Classic revival kit (CR3181), gen III engine, T56 6 speed box, AU XR8 lsd diff
Posts: 5,699
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Not Ranked
Lookin good Baz, will you take it to Goulburn?
__________________
Cruising in 5th
---------------------------------------------
Never be afraid to do something new, Remember, Amateurs built the Ark: Professionals built the Titanic.
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08-09-2012, 04:15 AM
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CC Member
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Join Date: Jul 2007
Location: Sydney Australia,
NSW
Cobra Make, Engine: RMC with 6 litre 307KW LS2, Comp Cam, 348rwhp & 532.5 ftlb of torque with 6L80E Tiptronic Transmission
Posts: 1,400
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Not Ranked
Quote:
Originally Posted by boxhead
Lookin good Baz, will you take it to Goulburn?
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Unfortunately No Dave. Will be in the Sates. |
08-09-2012, 04:33 AM
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CC Member
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Join Date: Nov 2009
Location: Cheltenham,
Vic
Cobra Make, Engine: Classic Revival CR3516, LS3, Aussie Mike'd T-56, 3.70 LSD, AP brakes, Penske shocks
Posts: 1,616
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Not Ranked
looks great Baz! Did you have a stock tune before this, and do you have a "before" dyno graph?
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Ben in AU
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08-09-2012, 03:48 PM
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CC Member
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Join Date: Jul 2007
Location: Sydney Australia,
NSW
Cobra Make, Engine: RMC with 6 litre 307KW LS2, Comp Cam, 348rwhp & 532.5 ftlb of torque with 6L80E Tiptronic Transmission
Posts: 1,400
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Not Ranked
Quote:
Originally Posted by Modena
looks great Baz! Did you have a stock tune before this, and do you have a "before" dyno graph?
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No Ben this is the first engine tune and I don't have a before Dyno graph, but its simply purring now. Was running really rich before. |
08-09-2012, 07:37 PM
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CC Member
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Join Date: Jun 2006
Cobra Make, Engine:
Posts: 187
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Not Ranked
Sam knows his stuff.
Did you go mafless tune?
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08-09-2012, 08:48 PM
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CC Member
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Join Date: Nov 2009
Location: Cheltenham,
Vic
Cobra Make, Engine: Classic Revival CR3516, LS3, Aussie Mike'd T-56, 3.70 LSD, AP brakes, Penske shocks
Posts: 1,616
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Not Ranked
agreed Sam knows what he is doing, but Baz are you saying there was no before run, or just that you didn't get a graph from it?
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Ben in AU
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08-10-2012, 03:55 AM
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CC Member
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Join Date: Jul 2007
Location: Sydney Australia,
NSW
Cobra Make, Engine: RMC with 6 litre 307KW LS2, Comp Cam, 348rwhp & 532.5 ftlb of torque with 6L80E Tiptronic Transmission
Posts: 1,400
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Not Ranked
Quote:
Originally Posted by Modena
agreed Sam knows what he is doing, but Baz are you saying there was no before run, or just that you didn't get a graph from it?
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Sam is in his new premises and has his roller dyno in a sound proof, ventilated and enclosed room which looks like a huge spray booth. Apparently, the car was so far out of tune prior to strapping it to the dyno that he had to bring the tune up to the mark on his computer through the ECU. I don't think he ran it on the dyno until he was sure that he had everything correct on his laptop. I couldn't see him as the booth is enclosed. I only heard it revving to about 7000 rpm twice and that was towards the end of the session, so I think there was no 'before' runs done. |
08-10-2012, 04:30 AM
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CC Member
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Join Date: Nov 2009
Location: Cheltenham,
Vic
Cobra Make, Engine: Classic Revival CR3516, LS3, Aussie Mike'd T-56, 3.70 LSD, AP brakes, Penske shocks
Posts: 1,616
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Not Ranked
quite probably. Places like Sams have been tuning LSx's for long enough that they can load up an existing tune that will be 95%, especially if you have stock internals, and then just tweek it to suit your specific donk.
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Ben in AU
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08-10-2012, 03:29 PM
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CC Member
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Join Date: Jul 2007
Location: Sydney Australia,
NSW
Cobra Make, Engine: RMC with 6 litre 307KW LS2, Comp Cam, 348rwhp & 532.5 ftlb of torque with 6L80E Tiptronic Transmission
Posts: 1,400
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Not Ranked
Quote:
Originally Posted by Modena
quite probably. Places like Sams have been tuning LSx's for long enough that they can load up an existing tune that will be 95%, especially if you have stock internals, and then just tweek it to suit your specific donk.
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That's right Ben, but it's not exactly stock internally. I just had a Comp XER273HR-14 Roller Cam with double Crane springs etc., installed. I just supplied Sam with the cam specs and he did the rest. That's why I've waited for nearly 12 months before going to the dyno. |
08-10-2012, 03:40 PM
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CC Member
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Join Date: Jul 2007
Location: Sydney Australia,
NSW
Cobra Make, Engine: RMC with 6 litre 307KW LS2, Comp Cam, 348rwhp & 532.5 ftlb of torque with 6L80E Tiptronic Transmission
Posts: 1,400
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Not Ranked
Quote:
Originally Posted by HSVREDSLED
Sam knows his stuff.
Did you go mafless tune?
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No. The MAF is still there and running as far as I know. He only charged me the $800 for the tune with no parts. If I had gone Mafless, there would have been additional items on the account****.
Last edited by Baz; 08-10-2012 at 03:43 PM..
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08-10-2012, 05:57 PM
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CC Member
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Join Date: Feb 2002
Location: Alice Springs, central Australia,
NT
Cobra Make, Engine: Classic revival kit (CR3181), gen III engine, T56 6 speed box, AU XR8 lsd diff
Posts: 5,699
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Not Ranked
No extras for Mafless Baz.
But I don't think there are many power gains to be had from going Mafless, unless your chasing every last pony and needing a larger air intake.
__________________
Cruising in 5th
---------------------------------------------
Never be afraid to do something new, Remember, Amateurs built the Ark: Professionals built the Titanic.
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08-10-2012, 06:18 PM
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CC Member
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Join Date: Jul 2012
Cobra Make, Engine:
Posts: 6
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Not Ranked
I have a LS3 in my HSV which has a Maf Tune, Air Box and Full 3" Exhaust System, 300kW @ the wheels. Lots of good tuners out there are getting great numbers from the LS engines.
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08-10-2012, 11:13 PM
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CC Member
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Join Date: Jun 2009
Location: Sydney,
NSW
Cobra Make, Engine: RCM, Jag front and rear, LS3
Posts: 1,640
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Not Ranked
Quote:
Originally Posted by 67.COBR
I have a LS3 in my HSV which has a Maf Tune, Air Box and Full 3" Exhaust System, 300kW @ the wheels. Lots of good tuners out there are getting great numbers from the LS engines.
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Nice, is that a stock engine? |
08-10-2012, 11:40 PM
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CC Member
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Join Date: Jul 2012
Cobra Make, Engine:
Posts: 6
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Not Ranked
Quote:
Originally Posted by Zedn
Nice, is that a stock engine?
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Yep Stock, just the bolt on mods. I have been thinking about heavier valve springs and maybe a cam upgrade. |
08-11-2012, 04:25 AM
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CC Member
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Join Date: Jul 2007
Location: Sydney Australia,
NSW
Cobra Make, Engine: RMC with 6 litre 307KW LS2, Comp Cam, 348rwhp & 532.5 ftlb of torque with 6L80E Tiptronic Transmission
Posts: 1,400
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Not Ranked
Quote:
Originally Posted by boxhead
No extras for Mafless Baz.
But I don't think there are many power gains to be had from going Mafless, unless your chasing every last pony and needing a larger air intake.
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Dave,
If the MAf was removed, I would need a MAP Sensor to be fitted in lieu. That was the additional part I referred to, but I don't think it was worth all the drama. |
08-11-2012, 07:19 AM
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CC Member
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Join Date: Jun 2009
Location: Sydney,
NSW
Cobra Make, Engine: RCM, Jag front and rear, LS3
Posts: 1,640
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Not Ranked
The motor uses both a MAP and MAF sensor. The MAP sensor is located behind the throttle body on the drivers side.
I agree, there would be very little performance gain.
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08-11-2012, 05:22 PM
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CC Member
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Join Date: Apr 2006
Location: Mildura,
vic
Cobra Make, Engine: FFR Coupe, 416ci of LS goodness
Posts: 2,349
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Not Ranked
Hi Baz, how are you finding you new cam? I have the XER 281 in mine and love it!
Did you fit a stall converter?
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08-11-2012, 07:04 PM
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CC Member
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Join Date: Jan 2004
Location: Gold Coast,
AUS
Cobra Make, Engine: Wish I had my own PACE 427
Posts: 2,145
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Not Ranked
Baz, they are great numbers.
Better off in the long term retaining the MAF.
Thanks for sharing.
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08-11-2012, 11:22 PM
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Senior Club Cobra Member
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Join Date: Mar 2007
Location: North Gold Coast,
Qld
Cobra Make, Engine:
Posts: 820
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Not Ranked
if u remove the maf its the air temp sensor u need to re install
not the map
as for perforamce gains its all up to the tuner
and sam is the godfather for lsx tuning and what he said is gospel
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