AFR 205's and Patrick G cam dyno results
07-25-2009, 09:23 PM
#1
AFR 205's and Patrick G cam dyno results I made it in this morning to get a couple pulls on the new setup. I never dynoed the car stock so I don't have anything to compare it with but the butt-o-meter says it moves out pretty good. Mods are below:
AFR 205's milled to 62cc with cometic 0.040" head gaskets
Patrick G cam doctored at 232/237 0.614"/0.619" 113+4 on LSL lobes
Ford 42# green tops
FLP 1 3/4" LT's
ORX
Stock Ti mufflers
UD pulley
Halltech CAI
Stock LS6 intake/ported TB
Stock gears/clutch
The graph shows around 13.5 up to 13.8:1 AFR at high rpms whereas we tuned it on the street with a wideband and it was right at 13.0:1 at 6K rpms. It's an OLSD tune and the wideband for the tuning was placed on one side of the X pipe whereas the dyno guys just stuck it in one of the tips. Anyways, car pulls great being so light with the M12 gearing. Track results to come later when it cools off a bit. First 2 pulls (436 RWHP were back to back and then the third at 445 was after a 5 min break). Not too bad considering the lack of a 90 or 92 setup. Thanks Patrick G for spec'ing out this cam which drives great!
AFR 205's milled to 62cc with cometic 0.040" head gaskets
Patrick G cam doctored at 232/237 0.614"/0.619" 113+4 on LSL lobes
Ford 42# green tops
FLP 1 3/4" LT's
ORX
Stock Ti mufflers
UD pulley
Halltech CAI
Stock LS6 intake/ported TB
Stock gears/clutch
The graph shows around 13.5 up to 13.8:1 AFR at high rpms whereas we tuned it on the street with a wideband and it was right at 13.0:1 at 6K rpms. It's an OLSD tune and the wideband for the tuning was placed on one side of the X pipe whereas the dyno guys just stuck it in one of the tips. Anyways, car pulls great being so light with the M12 gearing. Track results to come later when it cools off a bit. First 2 pulls (436 RWHP were back to back and then the third at 445 was after a 5 min break). Not too bad considering the lack of a 90 or 92 setup. Thanks Patrick G for spec'ing out this cam which drives great!
Last edited by Red99TA; 07-25-2009 at 10:02 PM.
07-26-2009, 03:36 AM
#7
Those look like standard numbers which show a lil higher, what were the SAE numbers? Also what was the temp that day? I made 422rwhp and 400lbs.STD
https://ls1tech.com/forums/dynamomet...-though-2.html
Plus my AFR was 12.8-13.1
https://ls1tech.com/forums/dynamomet...-though-2.html
Plus my AFR was 12.8-13.1
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07-26-2009, 07:11 AM
#8
You're right...I didn't even notice they were STD until I got home (I went to that dyno years ago but I thought they were SAE back then). Anyways, I don't have the SAE numbers. From what I've seen STD dyno's around 2.6% higher than SAE since it's correcting to a slightly lower temp and higher baro. The temp outside during the runs was 94 deg and their correction factor came out to 1.04. If I subtract out that 2.6% I'm only at 434/390 which is a little depressing for the combo.
Those look like standard numbers which show a lil higher, what were the SAE numbers? Also what was the temp that day? I made 422rwhp and 400lbs.STD
https://ls1tech.com/forums/dynamomet...-though-2.html
Plus my AFR was 12.8-13.1
https://ls1tech.com/forums/dynamomet...-though-2.html
Plus my AFR was 12.8-13.1
Last edited by Red99TA; 07-26-2009 at 07:34 AM.
07-31-2009, 11:47 AM
#14
From what I've seen on here it's not uncommon. It's not that far off really. I mean the lifts are very close and 0.8 deg on the intake and 1.5 deg on the exhaust duration is close enough for me. However installing it dot-to-dot and finding it to be 112 deg (3 deg off of the 109 ICL) just shows you the importance of degreeing a camshaft. I degreed it to 109.5 which is as close as I could get it.
08-13-2009, 07:23 AM
#15
From what I've seen on here it's not uncommon. It's not that far off really. I mean the lifts are very close and 0.8 deg on the intake and 1.5 deg on the exhaust duration is close enough for me. However installing it dot-to-dot and finding it to be 112 deg (3 deg off of the 109 ICL) just shows you the importance of degreeing a camshaft. I degreed it to 109.5 which is as close as I could get it.
08-13-2009, 08:14 AM
#16
Funny you should mention that...there's a non-ported 90 and LS2 TB sitting in my garage right now! I'm going to port both of them myself. I also put poly mounts on to get rid of a weird rattling/knocking I was having. I'm hoping that solved the retard I was seeing around 3500 rpms. Going to retune it in a couple weeks and hit the track later in September. "Should" trap 120+ easy.
