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#1
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GTO George |
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#2
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George, if you changed fuel in your car and cranked up the boost how fast would you run? |
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#3
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Dyno numbers are only numbers. I've rarely seen dyno numbers equivalent to the same numbers on the drag strip. The e-heads have decades behind them and because of that there are far more racers with e-heads on there cars. As for one off billet heads except for the Visner all the other heads can be bought in cast form. Speed cost money, most Pontiac racers are cheap, only few are willing to set it out (money & time), the ones that do are rewarded. Butler , KRE, Cooper, Welter, Justin, etc. all have a lot in common.....not enough time or money.......no MEGA company's here! You wanna go fast how much time & money you got......it's pretty simple. E head can't compare to the Warp 6. Visners CV head, DCI RA5 head are two heads with more time on them WILL easily surpass the e heads.
My engine runs on alcohol.....what ifs are silly! I'll run any car with any head, anytime....same boost, same weight....same day....same strip with my HP heads. I'll be at Norwalk. ![]() GTO George |
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#4
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![]() Btw... I doubt I'll be at Norwalk |
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#5
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mentioned heads it would make more power! Case closed! GTO George |
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#6
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#7
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I thought you said "what ifs" are silly... why do you continue to be silly?
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#8
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#1 Warp 6 - limited availability #2 our billet RA5 - not available, built for ruggedness, not ultimate flow #3 Tiger heads #4 e-heads #5 (I don't recall) #6 E-heads #7 Tiger #8 Warp 6 #9 Warp 6? #10 Warp 6 So 4 different heads represented....a nice variety in my book. Eric
__________________
"Everybody has a plan until they get punched in the mouth" noted philosopher Mike Tyson Life begins at the end of your comfort zone. “The mind, once stretched by a new idea, never returns to its original dimensions.” |
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#9
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Last edited by PAUL K; 04-01-2017 at 12:32 PM. |
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#10
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Way are these not readily available? Stan
__________________
Stan Weiss/World Wide Enterprises Offering Performance Software Since 1987 http://www.magneticlynx.com/carfor/carfor.htm David Vizard & Stan Weiss' IOP / Flow / Induction Optimization - Cam Selection Software http://www.magneticlynx.com/DV Download FREE 14 Trial IOP / Flow Software http://www.magneticlynx.com/DV/Flow_..._Day_Trial.php Pontiac Pump Gas List http://www.magneticlynx.com/carfor/pont_gas.htm Using PMD Block and Heads List http://www.magneticlynx.com/carfor/pont_pmd.htm |
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#11
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Hi Stan, I'm not sure why, but they've been out of stock for a long time.
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#12
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Thanks did not know that. Just a WAG, but could be like the CV1's were sold out for sometime before the new CV1.1 came out that the Tigers are sold out of this casting run and are waiting on a new improved casting. Stan
__________________
Stan Weiss/World Wide Enterprises Offering Performance Software Since 1987 http://www.magneticlynx.com/carfor/carfor.htm David Vizard & Stan Weiss' IOP / Flow / Induction Optimization - Cam Selection Software http://www.magneticlynx.com/DV Download FREE 14 Trial IOP / Flow Software http://www.magneticlynx.com/DV/Flow_..._Day_Trial.php Pontiac Pump Gas List http://www.magneticlynx.com/carfor/pont_gas.htm Using PMD Block and Heads List http://www.magneticlynx.com/carfor/pont_pmd.htm |
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#13
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We used Tigers on the Grocery Getter and had no trouble getting them.
We had the first gen Tigers ( lots better now) and they were worth an instant 150 hp gain over ported e-heads (which are further developed now too). Eric
__________________
"Everybody has a plan until they get punched in the mouth" noted philosopher Mike Tyson Life begins at the end of your comfort zone. “The mind, once stretched by a new idea, never returns to its original dimensions.” |
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#14
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Tigers are a very good head....hopefully they're available soon.
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#15
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GTO George |
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#16
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Same boost numbers or same pulleys, same cam ?
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#17
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From every objective viewpoint, the e-heads shouldn't be worth a damn, yet they do perform amazingly well when lots and lots of time and effort is put into them. Unfortunately, what you are left with is a flimsy and delicate head, once you port the heck out of them, move the water holes, grind and fill, put good seats in them, open the push-rod area. It's just one heck of a lot of work. But for many years, it is all we had other than Wenzlers. The Tigers start out so much better it isn't even a comparison. But many serious players, like the Crow, Rodney Butler and many, many others had already invested thousands of dollars and hundreds of hours on the E-heads and didn't want to jump ship to another head. I understand this. The cost can be huge to make the change because it's not just the heads. Lifters, pushrods, rocker gear, valves, springs all have to be changed. If you use good parts it can easily cost 15K to change all that stuff if you include the cost of the new heads, porting, flow development, different intake. It's allot more than just the head castings. Edelbrock had a HUGE advantage by being the FIRST and ONLY choice for over a decade. In my opinion, this is why the Pro-Port head was a failure. A much better head, but way too late coming out and lots and lots of good choices now. Nobody left in the hobby with money and interest in really developing them.
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#18
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This thread is about the Crow, the Crow is a TURBO car that runs 40+ psi of boost, some turbo cars are starting to run 80 psi, so no real port work needed. Good valves and springs, top hat washers and tubes in E heads to keep the studs tight and a good size cam. That and a bottom end that stays together will tear up most cars, LOL
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#19
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13.5 psi of boost will make 850 hp on a very basic 455 type engine. Luhn Performance proved that deal. Many Years ago there was a guy named Doug Hess who ran 8.40s with his heavy Camero with a 350 cid engine. Article by Woody Hatten in Super Stock magazine. So Doug put a single dominator on a new car (Monza body - same engine) and TURNED UP THE BOOST and ran well into the high 7s. HE WAS RUNNING TWIN TURBOS SO THAT WAS EASY TO DO. many years later, as you said v869tr6, that still is the way to make big hp, and not so much on the cid and head flow side of the deal. Only reason why you need the head flow is if the class restricts boost and engine displacement. Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
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#20
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__________________
1969 GTO, 5.77 @ 121 1/8th mile 3450 lbs...535 with Junk dinosaur Eheads Faster on nitrous… |
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