8V Dyno Mash
08-01-2014, 12:31 AM
#1
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Thread Starter
8V Dyno Mash
A lot wrong with comparing but interesting none the less, especially the shape rather than absolute numbers. I have collected A LOT of dyno run data but hoping no one has a problem with posting. Let me know if you do and I will take it down.
Note also that Tom M'Guinn was running pump fuel rather than E85 which has a significant impact on tuning (especially up top).
Sid was running a slightly modified stock intake, Tom a SFR intake, Pat and I custom intakes.
I believe all of these runs were in the 24-25 psi range.
Patrick a 3.1L, 88 mm stroke, Shawn 3.1L 94.75 mm stroke, Sid 2.85L 86 mm stroke, Tom 3L 88 mm stroke.
Note also that Tom M'Guinn was running pump fuel rather than E85 which has a significant impact on tuning (especially up top).
Sid was running a slightly modified stock intake, Tom a SFR intake, Pat and I custom intakes.
I believe all of these runs were in the 24-25 psi range.
Patrick a 3.1L, 88 mm stroke, Shawn 3.1L 94.75 mm stroke, Sid 2.85L 86 mm stroke, Tom 3L 88 mm stroke.
08-01-2014, 12:33 AM
#2
Rennlist Member
Very cool post !!
08-01-2014, 01:17 AM
#4
Rennlist Member
I'm sure Sid is over the top of me now, but interesting all the same and thanks for taking the time Shawn. That dip in my trace around the 4500rpm mark was wheelspin, not a tuning abnormality.
08-01-2014, 01:19 AM
#5
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Thread Starter
08-01-2014, 01:20 AM
#6
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Might just twist Paul's arm and get to the drags later in the year!
08-01-2014, 01:27 AM
#7
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Trending Topics
08-01-2014, 01:29 AM
#8
Formula One Spin Doctor
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A lot wrong with comparing but interesting none the less, especially the shape rather than absolute numbers. I have collected A LOT of dyno run data but hoping no one has a problem with posting. Let me know if you do and I will take it down.
Note also that Tom M'Guinn was running pump fuel rather than E85 which has a significant impact on tuning (especially up top).
Sid was running a slightly modified stock intake, Tom a SFR intake, Pat and I custom intakes.
I believe all of these runs were in the 24-25 psi range.
Patrick a 3.1L, 88 mm stroke, Shawn 3.1L 94.75 mm stroke, Sid 2.85L 86 mm stroke, Tom 3L 88 mm stroke.
Note also that Tom M'Guinn was running pump fuel rather than E85 which has a significant impact on tuning (especially up top).
Sid was running a slightly modified stock intake, Tom a SFR intake, Pat and I custom intakes.
I believe all of these runs were in the 24-25 psi range.
Patrick a 3.1L, 88 mm stroke, Shawn 3.1L 94.75 mm stroke, Sid 2.85L 86 mm stroke, Tom 3L 88 mm stroke.
Could you explain the tom mcGuinn pump gas comment , Im not understanding the pump gas effect on top end power ...
Big numbers by all .....
08-01-2014, 01:30 AM
#9
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That should be interesting Shawn. Are you at similar altitude as Sid?
08-01-2014, 01:43 AM
#10
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Thread Starter
E85 allowing a lot more ignition timing after peak torque. E85 is amazing stuff, I have run 25 psi with up to 35 degrees of ignition timing (at 6K) without any knock counts.
08-01-2014, 01:45 AM
#11
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08-01-2014, 03:30 AM
#12
Professional Hoon
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The only thing i can say that you cannot compare would be the engine size bore and stroke. from my understanding, that will play with curves with different intakes. Still cool though!
08-01-2014, 10:46 AM
#13
Rainman
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SFR vs 333pg333 manifolds...
surely youre all running different turbos but with the similarities of curves from such different engines, maybe this is showing the 8v head limits? "limits" is a relative term as of course each of these cars would eat the face off most LS cars (in case OD is lurking)
surely youre all running different turbos but with the similarities of curves from such different engines, maybe this is showing the 8v head limits? "limits" is a relative term as of course each of these cars would eat the face off most LS cars (in case OD is lurking)
08-01-2014, 01:03 PM
#14
Race Car
We should add some detailed info that could effect the curves.
2.85
Mild port, stock valves
BMW throttle body (Forget the size)
Mild intake port and diverter
Hx40 super turbo .58 t4 hotside
23 psi
2.85
Mild port, stock valves
BMW throttle body (Forget the size)
Mild intake port and diverter
Hx40 super turbo .58 t4 hotside
23 psi
08-01-2014, 03:39 PM
#15
Rennlist Member
3.1
Medium/Big port
49mm intake, 40mm ex valves
66mm T-body
GTX3582 .82
25psi
Medium/Big port
49mm intake, 40mm ex valves
66mm T-body
GTX3582 .82
25psi