FAQ |
Members List |
Social Groups |
Calendar |
Search |
Today's Posts |
#21
|
||||
|
||||
Quote:
__________________
1965 TriPower GTO, 1967 GTO, 1969 GTO, 1969 Judge, 1972 GTO, 1977 Smokey and the Bandit, 1989 TA ProStreet, 1968 Firebird NHRA 10.90 racecar, 1963 Tempest S/Gas |
#22
|
||||
|
||||
Quote:
Karl |
#23
|
||||
|
||||
10.2 would be good for a street motor with aluminum heads wouldn't it?
__________________
1965 TriPower GTO, 1967 GTO, 1969 GTO, 1969 Judge, 1972 GTO, 1977 Smokey and the Bandit, 1989 TA ProStreet, 1968 Firebird NHRA 10.90 racecar, 1963 Tempest S/Gas |
#24
|
||||
|
||||
Quote:
I'm no expert but this is all learned from other people's experience. Karl |
#25
|
||||
|
||||
I would not get the heads ported to that flow level and run the duel plane manifold due to the fact that the point of the greatest port area will than be in the head, and you want it to be in the manifold to keep the widest power band possible.
If your hell bent on being able to claim that your heads flow 290, then keep the Torquer II manifold and deal with the drop off in low speed driving torque! Also take note that even that manifold only flow some 265 CFM@28", so that will need to get reworked also. With your CID motor pumping out through HP D-port exhaust manifolds, I would not pay for porting work above 270 CFM if you want my 2 cents worth!
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
#26
|
||||
|
||||
I run 108 lobe sep. on the street. I have no A/C. I find myself putting the car in neutral at every stop light [auto trans]. It will run in drive but, it`s so damn choppy. It idles much better without the load. It is 246/253 @ 050. So, it`s kinda large for street and 9.7 compress. This is with T2 intake. Don`t be fooled, it will rip the tires apart with the "no low end" single plane manifold. 462 cubes.
If that engine was mine, with A/C, I would go 112 to 114 lobe sep. with no larger than mid 230`s @ 050 intake. I would go 230 or smaller but you wanted a sound. That A/C is gonna add more heat and put more load at idle. So, Old Faithful on 112, and the RPM manifold if you run the Q-Jet. Holley 850 or 1000HP if you run the T2. Both will RIP for a street car with A/C. Will need a decent converter and 3.23 to 3.55 gear. |
#27
|
||||
|
||||
X 2 PunchT37.
__________________
Bull Nose Formula-461, 6x-4, Q-jet, HEI, TH400, 8.5 3.08, superslowjunk Last edited by Blued and Painted; 04-25-2013 at 10:20 AM. |
#28
|
||||
|
||||
Quote:
__________________
1965 TriPower GTO, 1967 GTO, 1969 GTO, 1969 Judge, 1972 GTO, 1977 Smokey and the Bandit, 1989 TA ProStreet, 1968 Firebird NHRA 10.90 racecar, 1963 Tempest S/Gas |
#29
|
||||
|
||||
Quote:
__________________
1965 TriPower GTO, 1967 GTO, 1969 GTO, 1969 Judge, 1972 GTO, 1977 Smokey and the Bandit, 1989 TA ProStreet, 1968 Firebird NHRA 10.90 racecar, 1963 Tempest S/Gas |
#30
|
||||
|
||||
__________________
Bull Nose Formula-461, 6x-4, Q-jet, HEI, TH400, 8.5 3.08, superslowjunk |
#31
|
||||
|
||||
Quote:
http://www.sdperformance.com/viewPro...productID=1816 |
#32
|
||||
|
||||
Quote:
There is a huge difference between the OVERLAP on a 246/253 @ .050 cam and a 230/242. We're talking 33.5 vs 20... that's more than a 50% increase! I agree that is a decent amount of duration, especially for only 9.7:1 compression. That makes a difference as well. PERSONALLY, with that much duration, I would like to see about another point of compression, octane willing. As far as the old faithful on a 112, well, I'm seeing 14.5 vs. 20 degrees overlap. That's downright tame. I don't have a problem with SD's cams in the slightest but if we remember that LSA is a manufacturing tool and DURATION and OVERLAP are the real players here, I believe that may open some eyes to another way of looking at cams. The aggressiveness of a given lobe makes a difference as well. An aggressive lobe would have more time on the seat creating more vacuum and a better idle, but, that same aggressiveness can lead to problems at 5,200 rpm or so. That ends up being peak for some if they aren't aware of that.
__________________
Sandoval Performance www.sandovalperformance.com Pontiac Crate Engines CNC Edelbrock heads Custom Ground Cams JOHNSON Limited Travel Hydraulic Roller Lifters |
#33
|
||||
|
||||
Quote:
We used a small 206 @ 050 cam on 106 in a stock low compress 400 back in the day. This thing went from 14.60`s to 13,80`s or so with a 3.23 gear in a `78 T/A. So, tight lobe seps. have their place. |
#34
|
|||
|
|||
http://s668.photobucket.com/user/tam...cs265.mp4.html Try this Old Faithful cold idle with 1.65 Harland Sharpes
|
#35
|
||||
|
||||
Quote:
__________________
1965 TriPower GTO, 1967 GTO, 1969 GTO, 1969 Judge, 1972 GTO, 1977 Smokey and the Bandit, 1989 TA ProStreet, 1968 Firebird NHRA 10.90 racecar, 1963 Tempest S/Gas |
#36
|
||||
|
||||
Quote:
I`m not sure how either will act but, the TCI is prolly the better quality of the 2. |
#37
|
||||
|
||||
I agree with paul s. here. A very agressive hyd. roller can have less overlap at 108 than some others. Put the lobes where they need to be to get the overlap figure where the engine combo needs it.
|
#38
|
||||
|
||||
Comp lobes (HYD roller)
3196 XER 288/236/162 @.200"/.640" INT 3018 XFI 292/242/165 @.200"/.602" EXH 110 LDA 106 ICL 145 seat/375 open Compare these .200" numbers with other grinds. These are very agressive lobes and will do what you want. 5500rpm peak and 12" of vac. at idle. Vac adv. to the manifold and mechanical in by 1800rpm. Total timing where Butler tells you. Run the RPM with the spacer. |
#39
|
||||
|
||||
We all have a different ideas about what is street-able. If i want to take off and run 8 hours at 75/80 mph, i want something easy'er on the valve train. If i just want to run up and get a freezy-pop, old faithfull sounds good. On converters, I just call cliff and he sends me one.
I've never built an engine based on what it's going to sound like. I could care less as long as it suits my needs.
__________________
Bull Nose Formula-461, 6x-4, Q-jet, HEI, TH400, 8.5 3.08, superslowjunk Last edited by Blued and Painted; 04-26-2013 at 10:14 AM. |
#40
|
||||
|
||||
Quote:
__________________
1965 TriPower GTO, 1967 GTO, 1969 GTO, 1969 Judge, 1972 GTO, 1977 Smokey and the Bandit, 1989 TA ProStreet, 1968 Firebird NHRA 10.90 racecar, 1963 Tempest S/Gas |
Reply |
Thread Tools | |
Display Modes | |
|
|