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#41
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#42
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LOL
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The Following 2 Users Say Thank You to Formulajones For This Useful Post: | ||
#43
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Nerds rule !
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The Following User Says Thank You to Dragncar For This Useful Post: | ||
#44
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#45
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It would be nice in a 80:trans Am with 308 gears. Or a 66 Bonneville with 2.73 gears.
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The Following 2 Users Say Thank You to dragracerx2813 For This Useful Post: | ||
#46
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I have read some of this post I have some thing similar it’s in our 73 Ventura bracket car 501 was originally built as a pump gas motor 455 060 over 4.5 crank 310 Cnc Kaufman d port heads comp hyd roller small 230 -240 duration 530 540 lift roller rockers vacuum pump 11,3 comp etc dyno 525hp 600 lb tq @ 5000 rpm big broad tourqe band car weighs 3250 w/ driver ran 10.60 @ 125/126 mph 850 Holley 3.73 rear switched over to methonal 1050 Holley victor manifold goes 10.19 130 at Norwalk we have run the car for several years very pleased with the power and the low maintenance this motor has delivered it would be bad ass in a street car like a full size or gto / lemans tempest crazy low end power
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#47
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Its all about time now so I have to force myself to work on it. Its going to be running this spring one way or another. I might dyno it, Westech. It would be a blast. But even if I don,t track numbers will leave this thing in the dust. This engine is a very good street engine. Mine has a different end goal. And yes I am looking to hurt some feelings with it. If I do, great. If not, I don,t build engines for a living but I will keep at it. Its only money right ? And we all spend too much of it on this stuff. I |
#48
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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 |
#49
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Sounds like 525 HP, also making 600lbs tq @ 5000 RPM to me.
Nice street engine. And going 10.19 to boot. |
#50
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Hurting feelings with a Pontiac is the best! I hope it happens for you. I quit often have customers walk in the door wanting to beat "so & so". I usually advise against it. My thoughts are if one builds an engine to beat a specific person, if you fail to achieve that goal your project has become a failure. The best thing to do is build it the best you can and enjoy it... If that happens your project will be a success. A hobbyist has a lot of advantages over a "Professional" engine builder, the main thing is time. The hobbyist can spend as much time as they care to, researching every part and procedure. Shoot in another thread, it was mentioned a guy building his own engine had three professionals involved in tightening his rod bolts. That seems completely ridiculous, especially considering the particular rods being discussed came with specific instructions and the specific lube for the bolts. But at the end of the day it seems like the bolts were fastened properly. I haven't commented on the engine in this thread because I have no information on the builders specific goals. The numbers are what they are and it's always easy to speculate what changes could have been made to make it better, but sometimes those guesses don't always pan out. Regardless the engine makes enough power to make ninety percent of the hobbyists happy..... Very happy. Slowbird recently built an engine for his father's street car. He put it together at my shop and started on it right after Labor day. He assembled the engine, installed it and had the car at the track in about three weeks. He ran some good numbers for a first outing. There is no reason an engine project should take two decades to complete. That would actually make it several uncompleted projects with a lot of mind changing along the way... Not that there is anything wrong with that. This is a hobby for most of us. We should all be happy a Pontiac engine got some coverage. One thing for sure the engine in this thread should not have an issue with the connecting rods. |
The Following 2 Users Say Thank You to PAUL K For This Useful Post: | ||
#51
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600 torque @ 5000 RPM = 571.2 HP 525 HP @ 5000 = 551.5 Torque 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 |
#52
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Stan,
Note the comments here in post number 37. Presume this is Andy Kelleman's first engine combo (note- the link no longer goes to the dyno run ). Also note I asked Andy a few questions regarding the build after that post. He replied. https://forums.maxperformanceinc.com...=810005&page=2 And for those interested this thread I started is about another 4.500" stroke build By Rocky Rotella. Not intended for a high HP build but for a very streetable torque monster ! https://www.motortrend.com/how-to/47...-inch-pontiac/ . .
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) 5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE Last edited by Steve C.; 12-16-2021 at 01:08 PM. |
#53
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Thanks. The highlighted line in your other post I quoted. Show what I was asking about. Stan
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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 |
#54
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Stan
It seems that 501 build by Mike Mavrigian at Precision Engine Tech is no longer available. Noted was the use of a small 236 degrees duration cam. Also noted in the article it used Comp 995 valve springs used with the hydraulic roller cam. I questioned the low 4900 rpm and thus brought up the subject if due to inadequate spring pressure the engine was noseing over at rpm on the dyno. That was not determined in conversation. Comments made in the article regarding the engine.... "Budget-wise, I didn’t have the luxury of spending additional time on Ross’s dyno for fine tuning or experimentation with different intake manifolds, timing setups, carb adjustments or cams. In the short time we spent that day, our peak horsepower was recorded at 525.4 HP at 4900 rpm, and peak torque was a whopping 604.8 lb-ft at 4100 rpm, with timing set at 36 degrees. Obviously, the valvetrain and bottom end is certainly capable of handling much higher rpm. We strongly felt that with more cam duration and experimenting with larger-volume intake manifold runners, the rpm band would move upwards, and obtaining very close to 600 HP would be realistic. However, for the first time out of the gate, we felt that this session was very successful. She’s definitely a stump puller." .
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) 5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE |
#55
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Just a guess on my part.
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 |
#56
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Steve not my first Pontiac but my first stroked Pontiac sorry for the confusion on hp and torque numbers I have a copy of dyno sheet at my shop I will find it and get my wife to help me post as for nosing over at 4900 no it pulls just past 6000 it just makes me wonder what it would do with a bigger camshaft since it is in a race car not a street car but I keep telling my self it would be sweet in a 68 gto for street use
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#57
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Thanks Andy. Sorry for any confusion on my part.
With the dyno numbers please reaffirm the engine specifications. .
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) 5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE Last edited by Steve C.; 12-16-2021 at 11:11 PM. |
#58
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Steve c this is the paper work I received with the motor I got from mike m I do not have flow numbers for the kaufman heads I will be interested in hearing what every one thinks I just know for a street build it works great for a bracket motor
Here’s pages 1 - 5 |
#59
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Pages 6 - 10
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#60
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Pages 11 and 12.
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