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#1
06-20-2018, 05:48 PM
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Road Paver idle sounds
Here’s 2 cell phone videos of the RP on a 112 LSA in my 10.8-1 CR 517. Really pretty tame. SD Dave wanted a cam about 10 degrees larger @ .050 and said it would be worth as much as 25HP on this set up and still be very streetable but I was worried about around town drive ability.
Maybe someday down the road I’ll try the bigger cam out. Idle in neutral https://www.youtube.com/watch?v=7o-WB9Dd9R8 Idle in gear https://www.youtube.com/watch?v=YAFYcoRm9fI
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68 GTO,3860# Stock Original 400/M-20 Muncie,3.55’s 13.86 @ 100 Old combo: 462 10.75 CR,,SD 330CFM Round Port E's,Old Faithful cam,Jim Hand Continental,3.42's. 1968 Pontiac GTO : 11.114 @ 120.130 MPH New combo: 517 MR-1,10.8 CR,SD 350CFM E's,QFT 950/Northwind,246/252 HR,9.5” 4000 stall,3.42's 636HP/654TQ 1.452 10.603 @ 125.09 http://www.dragtimes.com/Pontiac-GTO...lip-31594.html |
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#2
06-20-2018, 06:14 PM
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CI always tames them down.Dave was right.Tom
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#3
06-20-2018, 07:20 PM
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Sounds good I should record my exhaust see if it sounds any good with my phone. The exhaust note changed at idle with the OF 2.0 cam vs the OF and 1/2 a point more compression.
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 466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2 373 gears 3200 Continental Convertor best et 10.679/127.5/1.533 60ft 308 gears best et 10.76/125.64/1.5471 |
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#4
06-20-2018, 09:01 PM
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Nice i like it better in gear
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A man who falls for everything stands for nothing. |
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#5
06-20-2018, 09:48 PM
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Sounds great- 517 CID has a way of smoothing out a large cam!
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Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears '64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears '69 LeMans Vert, 350, #47 heads: Non-running project |
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#6
06-21-2018, 09:07 AM
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Quote:
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#7
06-21-2018, 09:19 AM
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Sounds fantastic! Waiting for a burnout video and timeslip!
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Chris D 69 GTO Liberty Blue/dark blue 467, 850 Holley, T2, Edelbrock Dport 310cfm w Ram Air manifolds, HFT 245/251D .561/.594L, T400, 9" w 3.50s 3905lbs 11.59@ 114, 1.57/ 60' |
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#8
06-21-2018, 09:37 AM
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+2 on rpm question
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#9
06-21-2018, 10:04 AM
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Use them mad skills and look at the video title while playing
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A man who falls for everything stands for nothing. |
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#10
06-21-2018, 10:10 AM
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I agree, 246 @ .050 is fairly small for a 517. We've run that much through 455's and similar BBC's here on 110's, and find them very street friendly. Sounds good through the Dynomax mufflers though, and probably drives like a pussy cat. Put some miles on it and have some fun.
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#11
06-21-2018, 10:46 AM
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#12
06-21-2018, 01:44 PM
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#13
06-21-2018, 05:56 PM
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It’s funny but I always seem to be late to the party. When 400HP was the hot setup by the time I got there 500HP was common. When that was reached the bar was raised to 600. I get there and it jumps all the way to 1000. My bucket list thing to do is have the chambers in the heads opened up and force feed some air through it. Probably never happen but we can all dream.
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68 GTO,3860# Stock Original 400/M-20 Muncie,3.55’s 13.86 @ 100 Old combo: 462 10.75 CR,,SD 330CFM Round Port E's,Old Faithful cam,Jim Hand Continental,3.42's. 1968 Pontiac GTO : 11.114 @ 120.130 MPH New combo: 517 MR-1,10.8 CR,SD 350CFM E's,QFT 950/Northwind,246/252 HR,9.5” 4000 stall,3.42's 636HP/654TQ 1.452 10.603 @ 125.09 http://www.dragtimes.com/Pontiac-GTO...lip-31594.html |
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#14
06-21-2018, 06:00 PM
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Sweet! Love it!
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#15
06-21-2018, 07:34 PM
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Does sound tame!! Sounds good tho, u should’ve put my Jones roller in that thing!
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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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#16
06-22-2018, 04:17 AM
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Quote:
__________________
68 GTO,3860# Stock Original 400/M-20 Muncie,3.55’s 13.86 @ 100 Old combo: 462 10.75 CR,,SD 330CFM Round Port E's,Old Faithful cam,Jim Hand Continental,3.42's. 1968 Pontiac GTO : 11.114 @ 120.130 MPH New combo: 517 MR-1,10.8 CR,SD 350CFM E's,QFT 950/Northwind,246/252 HR,9.5” 4000 stall,3.42's 636HP/654TQ 1.452 10.603 @ 125.09 http://www.dragtimes.com/Pontiac-GTO...lip-31594.html |
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#17
06-22-2018, 05:02 PM
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#18
10-27-2018, 06:50 PM
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Road Paver spec cam in my Spotts built 469 RA IV - car was purchased from another member
https://youtu.be/A4WnlgX-EV0 |
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#19
06-30-2019, 06:07 PM
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TCS,
I have the same SD 330 cfm CNC ported e-heads- planning to run them and the Road Paver on a 455 (stock 4.21" stroke now). Would stroking the 455 to 4.5" make the RP more streetable? Of course I want the 600+hp, but still wanting some driveability. Geno |
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#20
06-30-2019, 06:19 PM
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