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  #41  
Old 08-22-2018, 10:52 PM
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grandville455 grandville455 is offline
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Thanks guys! Here’s one of the runs
https://youtu.be/fAwafpKSbEw

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Darby
74 Grandville 2Dr 455 c.i 4550#
2011 1.60 60 ft,7.33@94.55-11.502@117.74


2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32
M/T 275/60 ET SS Drag Radial

2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's
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  #42  
Old 08-22-2018, 11:08 PM
hurryinhoosier62 hurryinhoosier62 is offline
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.458 BFSC at 6800 rpm for an NA non Diesel engine is incredible! Spark plugs are dead on.

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  #43  
Old 08-23-2018, 01:23 AM
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Nice build Darby

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  #44  
Old 08-23-2018, 08:22 AM
sdbob sdbob is offline
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Nice,somebody knows something about good machine work and parts.

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  #45  
Old 08-23-2018, 09:02 AM
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455firebird1969 455firebird1969 is offline
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Originally Posted by grandville455 View Post
Final numbers today! I’m pretty excited about this motor!! Plugs look Awesome for pump gas!!
Nice build there Darby. 650 to 750 at a higher RPM I assume. What else are you changing when this motor goes in?

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1969 Firebird, Tx3-455/468 machined by CVMS
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850DP on E-85 by Eric Niefert/T2 1" plastic spacer
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1.38 60' 6.32 @ 108 MPH at Northeast Dragway NC 5/23/15 (9th pass on new engine)

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1.37 60' 6.26 @ 109 half track, 9.86 @ 136 1/4 mile, #3350 11/26/16 at Richmond Dragway (125th pass on new engine)
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  #46  
Old 08-23-2018, 09:23 AM
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Originally Posted by 455firebird1969 View Post
Nice build there Darby. 650 to 750 at a higher RPM I assume. What else are you changing when this motor goes in?
Probably his underwear after his 1st launch

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  #47  
Old 08-23-2018, 09:49 AM
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grandville455 grandville455 is offline
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Probably his underwear after his 1st launch
Possibly Bud! lmao

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Darby
74 Grandville 2Dr 455 c.i 4550#
2011 1.60 60 ft,7.33@94.55-11.502@117.74


2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32
M/T 275/60 ET SS Drag Radial

2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's
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  #48  
Old 08-23-2018, 09:52 AM
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Nice build there Darby. 650 to 750 at a higher RPM I assume. What else are you changing when this motor goes in?
Peaked 100 Rpm sooner then old motor, torque was actually 1-200 higher on this bigger motor, Lenny has my numbers for the conv change. I've changed a lot on the car to help with added power I added sub frame connectors, and lost some weight to offset the added weight of the block!! It may end up a tad lighter well see.
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Click image for larger version Name: Front end.jpg Views: 167 Size: 99.4 KB ID: 491248  

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Darby
74 Grandville 2Dr 455 c.i 4550#
2011 1.60 60 ft,7.33@94.55-11.502@117.74


2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32
M/T 275/60 ET SS Drag Radial

2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's
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  #49  
Old 08-23-2018, 11:00 AM
chiefbigb chiefbigb is offline
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That thing will be a hand full on the street.

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  #50  
Old 08-23-2018, 11:16 AM
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That 666 max torque with the .6 added on might scare him at night too.

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  #51  
Old 08-23-2018, 12:29 PM
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That 666 max torque with the .6 added on might scare him at night too.
Rock On!
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Darby
74 Grandville 2Dr 455 c.i 4550#
2011 1.60 60 ft,7.33@94.55-11.502@117.74


2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32
M/T 275/60 ET SS Drag Radial

2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's
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  #52  
Old 08-23-2018, 12:29 PM
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grandville455 grandville455 is offline
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That thing will be a hand full on the street.
It will Demand Respect for sure!

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Darby
74 Grandville 2Dr 455 c.i 4550#
2011 1.60 60 ft,7.33@94.55-11.502@117.74


2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32
M/T 275/60 ET SS Drag Radial

2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's
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  #53  
Old 08-23-2018, 03:19 PM
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461-69bird 461-69bird is offline
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Quote:
Originally Posted by grandville455 View Post
Lenny has my numbers for the conv change.
Darby

if you sell your old conv pm me a price please

Rick

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  #54  
Old 08-23-2018, 08:34 PM
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grandville455 grandville455 is offline
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Darby

if you sell your old conv pm me a price please

Rick
Rick, he’s already got my conv, to make the needed changes for the new motor

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Darby
74 Grandville 2Dr 455 c.i 4550#
2011 1.60 60 ft,7.33@94.55-11.502@117.74


2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32
M/T 275/60 ET SS Drag Radial

2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's
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  #55  
Old 08-23-2018, 10:11 PM
aaronman aaronman is online now
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Well done Darby! Hope to see it live at the Rock soon.

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  #56  
Old 08-23-2018, 10:29 PM
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grandville455 grandville455 is offline
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Well done Darby! Hope to see it live at the Rock soon.
Thanks Aaron!!! Look forward to it n seeing you guys!!

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Darby
74 Grandville 2Dr 455 c.i 4550#
2011 1.60 60 ft,7.33@94.55-11.502@117.74


2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32
M/T 275/60 ET SS Drag Radial

2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's
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  #57  
Old 08-24-2018, 06:10 AM
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461-69bird 461-69bird is offline
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Ok Darby I thought you were replacing it

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472, Bullet SFT, KRE 85cc, Victor, 850xp, TH400, TSP 9.5" 4800, 3.90 10 bolt, Viking DA rears, QA1 single fronts, 3558lbs. best to date 11.14@120
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  #58  
Old 08-24-2018, 07:07 AM
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grandville455 grandville455 is offline
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Ok Darby I thought you were replacing it
No, Sorry, Just a re stall and tighten her up

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Darby
74 Grandville 2Dr 455 c.i 4550#
2011 1.60 60 ft,7.33@94.55-11.502@117.74


2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32
M/T 275/60 ET SS Drag Radial

2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's
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  #59  
Old 08-24-2018, 10:17 AM
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slowbird slowbird is offline
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It is nice to see a dyno sheet without a huge correction factor for a chance!

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  #60  
Old 08-24-2018, 02:33 PM
Dragncar Dragncar is offline
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Rick, he’s already got my conv, to make the needed changes for the new motor
Kinda what I found out too. I thought my new engine would need a completely different converter. Called Lane at PTC and he told me a re-stall was all I needed.

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