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#1
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1st test drive. (Motor built by GTOFREEK- Paul Carter)
1968 Pontiac GTO
- 462 cubic inch (A Gtofreek creation) - Torker 2 intake - Holley 870 Street Avenger - Ram Air Restorations manifolds - Flowmaster exhaust - Turbo 400 - Torque converter by Cliff Ruggles - 3.55 gears https://www.youtube.com/watch?v=kHLshwwe-Tc https://www.youtube.com/watch?v=trbmuNgY-tY https://www.youtube.com/watch?v=53Agat3Ncnw |
#2
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Quote:
Paul does awesome work....sounds great ...what stall converter what heads and flow......
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1973 Firebird Navajo Orange w/shaker,1973 400/461,1972 Intake SD CNC'd,1977 Q-Jet 800 CFM w/ Cliffs Kit,Tanks Inc PA4 255 Walbro intank pump ,-8an feed/return,RobbMc Regulator,RobbMc 40 micron filter,253 CFM 6x-8's w/H.S 1:5 Roller Rockers,SD Stump Puller H/R Cam 230/236 @.050 112 lobe separation 565/.570 lift,Crower Solid Rollers,28150 Hedman Headers,3" exhaust,full tailpipes,350 Turbo,9.5" 3200 Converter,3:42 gear,8.5 posi,C/E slide-alinks,Koni adj frt shocks,Best 12.18@110.55 Lookin for 11's |
#3
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^X2..More details like above with cam type and specs. Thanx.
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"No replacement for displacement!" GTOAA--https://www.gtoaa.org/ |
#4
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Sounds great and beautiful car!
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Chris D 69 GTO Liberty Blue/dark blue T400, 9" w 3.50s, 3905lbs 461, 850 Holley, T2, KRE 310s, Comp HR288 w 165s, RA manifolds, 11.72@112, 1.58/60 The spare: 467, 850 Holley, T2, Edelbrock Dport 310cfm w RA manifolds, HFT 245/251D .561/.594L, 11.59@ 114, 1.57/ 60' |
#5
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Looks like fun!
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My money talks to me-it usually says goodbye! |
#6
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Sounds great! Nothing like a good first test drive!
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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 |
#7
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You're right marblik! Between Paul, HWYSTR455 and grivera, I know how lucky I am. A few other friends of mine referred me to local "Pontiac Guru's" here in Virginia. I'm glad I didn't listen to them. Paul was excellent to do business with and had patience with me since I'm really new to cars. HWYSTR455 and grivera have been to the house helping me and one thing for sure is they MAKE ME learn. As many times as I've been stuck, they tell me what the hell to do and I get it done (one way or another).
As for "Dialing it in".....HWYSTR455 and grivera, I'll buy the beer and food and I'll see you at the house. Hahaha! |
#8
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Sorry I didn't put all the specs. I'm very new to this car game and still learning. So Mike, Will or Paul..Feel free to chime in. The converter is a 3000 to 3200 stall. I do have KRE heads (D-port) and believe the flow is 260-270...?
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#9
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Quote:
Here is Paul Carter's thread on the dyno session: http://forums.maxperformanceinc.com/...d.php?t=809537 "Well, I finished up a 455 and got it dynoed yesterday. Here are the engine specs. 455 + .030 = 462 CID. Stock 455 crank. KRE D-port heads, exhaust opened to 1.77" valve. Bowl blend to blend valve job, and a port match to stock Fel-Pro intake gasket[not the 1233 or RAIV size]. No other porting done. Heads flowed around 265/190 CFM, IIRC. I'll have to dig up the flow sheet on them. Lunati Voodoo HR cam, 243°/251° @ .050", ground on a 112° LSA, installed on a 105° ICL. Hylift/Johnson hydraulic roller lifters[slow bleed] Torker II intake, unported. 10.5:1 compression. RA exhaust manifolds with 2.5" pipe attached. Jeff Koerner Holley carb Sorry, I can't get my scanner to work, so I can't scan the dyno sheet. I'll try to fix it so I can, but here's the numbers. _RPM______torque_____HP 1600______447_______137 1700______424_______137 1800______410_______141 1900______414_______150 2000______423_______161 2100______431_______174 2200___________________ 2300______443_______191 2400______455_______208 2500______470_______228 2600___________________ 2700______485_______250 2800___________________ 2900______497_______270 3000______506_______289 3100______505_______298 3200______505_______308 3300______512_______322 3400______519_______336 3500______526_______351 3600______533_______365 3700______537_______378 3800______537_______389 3900______541_______402 4000______542_______413 4100______545_______425 4200______546_______436 4300______549_______450 4400______553_______463 4500______553_______474 4600______552_______483 4700______553_______495 4800______552_______505 4900______550_______513 5000______547_______519 5100______542_______527 5200______536_______531 5300______531_______536 5400______525_______540 5500______518_______543 5600______511_______545 5700______502_______545 5800______490_______541 5900______486_______546 6000______471_______538 6100______458_______532 6200______427_______505 While watching the real time computer screen as it revved up, I actually saw a 551 HP number in there somewhere, but it must have been in between two data points because it doesn't show it here. Overall, not bad for unported heads, and iron exhaust manifolds."
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Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears ‘66 Lemans, 455, KRE D-Ports, TH350, 12 bolt 3.90 gears '69 LeMans Vert, 350, #47 heads: work in progress |
#10
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Sweet running car! You’re gonna need tires,lots of them.
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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 |
#11
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LOL tires lots of tires..been there!
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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 |
#12
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Sweet ride !
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#13
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Paul does awesome work yes he dose
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1980 TA 455 th400 2.56 posi 12.27@111.48 http://www.dragtimes.com/Pontiac-Tra...lip-29967.html http://www.youtube.com/watch?v=6X5XJ9PR1Qw https://www.youtube.com/user/hal101/videos |
#14
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If you notice in the engine build spec sheet, this cam was ground on a 112° LSA, and installed 7° advanced, on a 105° ICL. It made over 500 ft. lbs. from 3000-5700 RPM, and made over 500 HP from 4800-6200 RPM. These were un-ported KRE D-port heads with RA manifolds, and 2.5" pipe. Port matched to a standard blue Fel-Pro intake gasket. I put that the heads flowed 265/190, but when I looked back at the flow sheets, they actually flowed 262/190. Not too bad for a big engine with small head ports, and exhaust manifolds. This dyno sheet was with one of Jeff Koerners Holley carbs. With the carb that is on it now, and in those videos, it made about 30 HP less, or 517, IIRC.
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Paul Carter Carter Cryogenics www.cartercryo.com 520-409-7236 Koerner Racing Engines You killed it, We build it! 520-294-5758 64 GTO, under re-construction, 412 CID, also under construction. 87 S-10 Pickup, 321,000 miles 99Monte Carlo, 293,000 miles 86 Bronco, 218,000 miles |
#15
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For clarity: is the final intake lobe 105* or 98* ILC?
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#16
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Installed at 105° ICL.
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Paul Carter Carter Cryogenics www.cartercryo.com 520-409-7236 Koerner Racing Engines You killed it, We build it! 520-294-5758 64 GTO, under re-construction, 412 CID, also under construction. 87 S-10 Pickup, 321,000 miles 99Monte Carlo, 293,000 miles 86 Bronco, 218,000 miles |
#17
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What size/type of Holley was it dynoed with?
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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 |
#18
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Mystery knocking noise revealed
Well, as you can see by the picture, the mysterious knocking noise has been revealed ..HWYSTR455 came over today and was able to identify the problem. Here is the vide clip where you can hear the knocking.
https://www.youtube.com/watch?v=kHLshwwe-Tc Here is what I'll be replacing the old rockers with. https://www.summitracing.com/parts/c...SABEgJ8ofD_BwE Two rockers were damaged on the passenger side, didn't even check the drivers side because they all need to be replaced anyway! Minor setback but hopefully I will be on the road soon. I just wish I knew how to do this stuff myself!!! |
#19
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It was a Holley that Jeff custom built for a customers 428 Ford. I believe it was a 950 HP, but it could have been a 750 HP. By the time he gets done with them though, it probably flowed upwards of 980 CFM. It was not an off the shelf carb. Jeff buys specific float bowls, metering blocks, main bodies, throttle plates, floats, etc., for the intended use of the carb. Then he modifies them for what is needed. His carbs run like fuel injection, but much more responsive. We dynoed a race engine with a customers carb. The engine had good A/F ratios throughout the rpm range. It made 600 HP even. Jeff felt the carb was a little too big, so he built one that had a bit smaller venturis, and did his custom metering block mods, and that same engine made 699 HP without any other change. That was about the biggest gain we've seen from a simple carb change, except in one of our NASCAR SW tour engines that also gained 100 HP from a carb swap, but that was from going from a carb that flowed about 540 CFM[390 Holley] to a 950 HP that he had flowing 1049 CFM. That was a 353 CID, 9:1 compression SB Chevy engine. It went from 575 to 675 HP.
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Paul Carter Carter Cryogenics www.cartercryo.com 520-409-7236 Koerner Racing Engines You killed it, We build it! 520-294-5758 64 GTO, under re-construction, 412 CID, also under construction. 87 S-10 Pickup, 321,000 miles 99Monte Carlo, 293,000 miles 86 Bronco, 218,000 miles |
#20
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These guys probably don't know Jeff's history with holley carbs. Phenomenal what he does.
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Closed Thread |
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