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#41
10-02-2014, 08:07 PM
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__________________
71 GTO, 463, KRE 295 cfm heads ported by SD Performance, RPM intake, Qjet, Dougs Headers, Comp cams HR 246/252 ...11 to 1 , 3.55 cogs, 3985lbs.....day three- 11.04 at 120mph ....1.53 60', 6.98 1/8 mile |
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#42
10-02-2014, 08:44 PM
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This car without a doubt belongs in the 'Pontiac Street Car Hall of Fame', right alongside Cliff Ruggle's Ventura, Darby Otto's Grandville and of course Jim Hand's LeMans wagon.
Amazingly quick quarter-mile performance with a 3.08 gear in a heavy street car, can't wait to see the next installment as you further tune it and refine it. Curious to know the fuel consumption on the trip to and from the track, I'd bet it could pull down close to 15 MPG. I recall reading in the H-O Racing catalog that the 455/TH400/3.08 combo was their favorite street combo, now we all know why. |
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#43
10-03-2014, 05:16 AM
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#44
10-03-2014, 05:20 AM
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Fuel mileage was decent the last time I only stopped once to bring the tank up to 3/4 15 miles before the track... My buddys car Torquewar's is very impressive in itself..he is usually there running too...stock appearing 78 Trans Am with a quadrajet running the same times at 120mph! Last edited by ta man; 10-03-2014 at 05:28 AM. |
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#45
10-06-2014, 04:29 AM
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Weather permitting..heading to the track again for some testntuning...this Friday.
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#46
10-06-2014, 11:02 AM
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I didn't find it in this tread (sorry if I overlooked it) but what diameter tire are you running?
I'm curious since I'm running a 3.08 with 26" tires now consider the switch to 28". 
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#47
10-06-2014, 12:04 PM
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More folks should do photo albums as part of their' profile....
.
__________________
. 1970 GTO Judge Tribute Pro-Tour Project 535 IA2 http://forums.maxperformanceinc.com/...d.php?t=760624 1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car https://forums.maxperformanceinc.com...ght=procharger Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be |
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#48
10-06-2014, 03:18 PM
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#49
10-06-2014, 03:20 PM
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#50
10-06-2014, 03:51 PM
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There's E-carbs in Cliff's dumpster, below the Holley's and X/E cams...
__________________
1977 Black Trans Am 180 HP Auto, essentially base model T/A. I'm the original owner, purchased May 7, 1977. Shut it off Shut it off Buddy, I just shut your Prius down... 
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#51
10-06-2014, 04:00 PM
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Thanks TA Man. 28" it will be.
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#52
10-06-2014, 06:08 PM
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[QUOTE=77 TRASHCAN;5282908]There's E-carbs in Cliff's dumpster, below the Holley's and X/E cams...
I have to add to this thread since i was there that day and am really happy with Ernies times and mine. We have been both trying new things and its so rewarding when a small change works effectivley at the track. I have been running a Quadrajet and am very happy with its street manners and at the track it performs great with trap speeds this year at 120+. I ran the E- Carbs and would never use one again period. My best time has been 11:46 this season with a 342 rear and a RPM intake . Hope i can meet TA man this friday for some more fun. |
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#53
10-07-2014, 06:58 AM
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[QUOTE=Torquewar;5282988]
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Friday looks like it will be cool at night if the track is hooking..we will see some pretty good times and mph from our cars...I'm still looking for 120mph!Torquewar beat me to it!One more part to test out .... |
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#54
11-27-2014, 06:53 PM
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I forgot to post these pictures of the current setup with the Spectre Cowl Air Cleaner setup.
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#55
11-28-2014, 02:36 AM
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New Best still with 3.08 gears
Consider me "old fashioned", but the brain still has a hard time understanding these ET's and MPH with the rear gear ratio advertised! What horsepower would you have to have with 3.08's and the ET's listed??
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#56
11-28-2014, 05:16 AM
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Torque is really what does the job!Its really the head cam package by SD performance..that gets the credit..I've done a few tweaks but could still have a better setup,my heads are still 85 cc's,non ported torker 2 intake,machine shop 462 with cast rods and heavy TRW pistons!I'm also still not satisfied with the carb tune and settled on the ignition curve.
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#57
11-28-2014, 11:10 AM
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my car is running right behind tamans & i do have actual dyno numbers, ~520hp/580tq & no tuning on the dyno. 2nd time out it did 11.7 @ 118+mph with 3.23 gears & no carb/engine/suspension tuning at all. just box stock e-heads & a cast iron SD ported intake & cliff built q-jet. & this is with a very tight pro touring type suspension, no traction aids, a very soft 1100rpm launch & short shifts around 5000 ... & a pretty bad fuel starvation issue if i try to go any faster, most likely due to the mech pump. once i address the fuel issue this winter & maybe add a full set of drag shocks & some type of traction aid, it should easily get down around tamans 11.4... or faster with a little tuning.
most cars should be in the mid to upper 11's at these power levels, even the heavier cars around 4000. as taman says, the pontiacs create so much torque they dont need crazy low gears & 4500rpm stall converters to do decent times. as you want to go faster those things can help, especially with all out race cars in the low 10's & faster. but for a mostly street driven car on pump gas & power brakes etc, these times are very easy to do today. cliff is doing 11.3's in his sleep with probably upper 10's if he wanted, but hes worried about roll bar rules etc. heres a pretty cool online calculator that is actually pretty accurate. http://vexer.com/automotive-tools/1-...MPH-calculator Last edited by 78w72; 11-28-2014 at 11:32 AM. |
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#58
11-28-2014, 11:27 AM
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Ton of motor, not surprised. Congtrats. on the times.
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#59
11-28-2014, 05:27 PM
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 But take note, the real power comes from a well-chosen cam and heads recommended by a proven Pontiac shop. That and taking time to tune the entire combo to near perfection. It takes more than just big cubes, it takes dedication to getting everything in line.
__________________
1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
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#60
11-28-2014, 08:40 PM
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