I realized that when I made the video I did forget to include the compression ratio and cam specs. The compression ratio is 9.8:1. I don't give out full cam specs, but the .050" duration is 229/237 and the lift is almost hitting .600". LSA was what was needed to keep overlap in the range for this application. Intake lobe was a fairly aggressive hydraulic roller lobe. Exhaust lobe was equal in lobe aggression, but a different family of lobes altogether. Completely custom camshaft. With these older engines and older cylinder head technology, there is a fine balance between keeping enough overlap to make horsepower and keeping it largely streetable.
Hmmm that cam might be the key. I built a .030 over 289 when I was in high school. Chevy valves in home ported heads. 11.5 :1 compression accel distributor. With a custom solid lifter cam it rev'd to 8,000+ ....blew the flywheel off of it. My guess is 333 hp 300 ft lbs of torque.
Hey Brent, I’m gonna say 363 hp and maybe 290 foot pounds of torque somewhere around there I really enjoy your channel man learn a lot keep it up buddy Kyle Burney …Mountain Grove Missouri
Mr Shelby chose that motor for a reason one of the most badass compact engine designs ever.... Horsepower to weight ratio... And of course the most horsepower hour...... You piss off Mr Shelby and he'll just reach for that 4:27 .... He does not lose
There's enough head flow for 400 hp. I'm real sceptical of that. Anything above 320 would be surprising to me. It does have better oil management so depending on high it revs will have something to do with the outcome. I had a 64 Fairlane with an original hipo 289. That engine came with a single point vacuum advance distributor, the same cast iron 4 barrel intake as any 289 and a Autolite 4100 carb. It did have the hipo heads and exhaust manifolds. The cam was extremely mild compared to Brett's cam. So we have increased head and intake flow, way better cam, better oil management and probably a more honest comp. ratio. Plus, he will be using headers on the dyno. The effect of the rod length and the better ring pack is known but to how much it will add with the other parameters is a little unknown. However, because this is hanging from my childhood dreams, I will enjoy watching. Good, bad, or what ever, for those of us with a history of these engines, it will be fun. :)
Впускной коллектор отдельно течет выше чем ГБЦ, но если продувать головки блока цилиндров вместе с впускным коллектором, то он уронит расход головок блока цилиндров на 15-20cfm. Удачи с замером.
I’m guessing mid 320’s horsepower and similar torque up to 6000 rpm. I believe with the parts you listed but increasing rpm to 6,800 - 7,000 rpm I’ll go 350 horse.
Not knowing how much it cost to build it plus your expertise which I do not doubt I would say 400 horsepower because if I was having you build that for me that's what I would require no less even though it looks stock and it looks original good luck man
At least 110 hp 😁. I'm gonna guess 381 hp at 6,200 and 345 ft lbs at 5,600 rpm. My thought is with that compression ratio you want a relatively wide'ish LSA to maximize the cylinder pressure. Good luck!
LSA has nothing to do with the compression ratio. It has everything to do with the ICL, which is completely independent of the LSA. You can have a 120 LSA with a 100 ICL if you want, or a 104 LSA with a 110 ICL. Saw your other comment, the amount of overlap doesn't have anything to do with the cylinder pressure either. All completely independent variables.
Totally depends on cam timing, which was not shared. Wild guess... 310 hp if it's designed to peak at 5000 rpm. More (330-340 ish)if it's designed to peak at 5500.
My understanding of the small block Ford is that the bigger the cam the more horsepower. I'll bet you're pretty close. A full out stock valved but ported head with aftermarket intake and wild cam that pulls 8-10k rpm might make 400.
@@keithwiebe1787 A 289 with a custom solid flat tappet, ported factory cast iron 289 heads and a Victor Jr with 11:1 compression will make 450 hp here....at just 7000 rpm.
Hey guys, this engine was dyno'd months and months and months ago. No need to guess the horsepower anymore. :)
What did it make??
289 was a Work Horse. Found in Cab over Semi Tractors, Pickups, cars, Etc....
Loved them.
I realized that when I made the video I did forget to include the compression ratio and cam specs. The compression ratio is 9.8:1. I don't give out full cam specs, but the .050" duration is 229/237 and the lift is almost hitting .600". LSA was what was needed to keep overlap in the range for this application. Intake lobe was a fairly aggressive hydraulic roller lobe. Exhaust lobe was equal in lobe aggression, but a different family of lobes altogether. Completely custom camshaft.
With these older engines and older cylinder head technology, there is a fine balance between keeping enough overlap to make horsepower and keeping it largely streetable.
What was the dyno test result???
316
Hmmm that cam might be the key. I built a .030 over 289 when I was in high school. Chevy valves in home ported heads. 11.5 :1 compression accel distributor. With a custom solid lifter cam it rev'd to 8,000+ ....blew the flywheel off of it.
My guess is 333 hp 300 ft lbs of torque.
331. Love the build!
412 hp based on how well the 306 did on the Dyno last time! Those custom cams you have are pretty sweet, might have to get me one of them.
344hp Great build, good luck tomorrow.
Hey Brent, I’m gonna say 363 hp and maybe 290 foot pounds of torque somewhere around there I really enjoy your channel man learn a lot keep it up buddy Kyle Burney …Mountain Grove Missouri
What a lovely little engine. I'm guessing 345 hp.
365HP 350 Ft LBS Nice engine. Good luck!
Mr Shelby chose that motor for a reason one of the most badass compact engine designs ever.... Horsepower to weight ratio... And of course the most horsepower hour...... You piss off Mr Shelby and he'll just reach for that 4:27 .... He does not lose
390 HP! @ 6300rpm
Nice build Brent. Good luck tomorrow
There's enough head flow for 400 hp. I'm real sceptical of that. Anything above 320 would be surprising to me. It does have better oil management so depending on high it revs will have something to do with the outcome. I had a 64 Fairlane with an original hipo 289. That engine came with a single point vacuum advance distributor, the same cast iron 4 barrel intake as any 289 and a Autolite 4100 carb. It did have the hipo heads and exhaust manifolds. The cam was extremely mild compared to Brett's cam. So we have increased head and intake flow, way better cam, better oil management and probably a more honest comp. ratio. Plus, he will be using headers on the dyno. The effect of the rod length and the better ring pack is known but to how much it will add with the other parameters is a little unknown. However, because this is hanging from my childhood dreams, I will enjoy watching. Good, bad, or what ever, for those of us with a history of these engines, it will be fun. :)
333HP 👍 looking forward to this one!
Впускной коллектор отдельно течет выше чем ГБЦ, но если продувать головки блока цилиндров вместе с впускным коллектором, то он уронит расход головок блока цилиндров на 15-20cfm.
Удачи с замером.
Man o man that little 289 Cobra🐍 is going to be a real ripper I'll say 395 hp
358 HP/340 Lb-Ft TRQ
That Cobra replica is going to getup n' GO!
312 hp. Shelby Hi-Po 289 made 306 hp
I was thinking 300 hp. I wasn't far off.
Guessing 389, but your 306 dyno mule way exceeded my guess on that engine, I won't be surprised if I'm low on this guess as well.
325 hp and 320 torque
I’m guessing mid 320’s horsepower and similar torque up to 6000 rpm. I believe with the parts you listed but increasing rpm to 6,800 - 7,000 rpm I’ll go 350 horse.
354hp. Nice build
I don’t know enough to be accurate with my guess, but sometimes it’s better to be lucky that good. 373hp
I was way low on your 310 mule. But I think 395.
Not knowing how much it cost to build it plus your expertise which I do not doubt I would say 400 horsepower because if I was having you build that for me that's what I would require no less even though it looks stock and it looks original good luck man
Hi love the channel...399hp
Sweet package 335
So is the bottleneck the cam or heads or both? Maybe that intake....
Are these the Pertronix stock-look plug wires? Nice appearance without loud contrasting printing on the cable, etc.
Yes sir.
with out knowing the cam spec s makes it hard guess but between 375 to 385 hp depending on rpm and 340 to 360 torque let her rev hard
W/o cam specs it's really hard to guess. I will guess 363hp
Factoring in the big valves with a roller cam at a 600 lift gonna go at 393
are we guessing total hp or hp per liter/ci? specific output is way more interesting than horsepower.
415, good luck
Given the 9.8:1 compression I will guess 355 BHP
Well I'm guessing 403/357 hp torque peak power around 6400
370 hp 350 tq nice job
Any issues/modifications to the valve covers in order to fit the roller rockers?
I just used thicker valve cover gaskets.
I’m guessing 312 to 315hp at 6000/6200 RPM and 350 to 370 torque at 3200/3600
I’m guessing 10 to 1 and about 500 CFM on the carb. 340 HP and 330 torque. Too bad those heads don’t flow like a new generation 300 CFM head.
352 would be cool.
315hp, hope I'm waay low. Guessing it peaks right at 6200. How do the Cobra Automotive guys get 600hp out of a cast iron head 289?
It's a different head casting altogether, lot of porting, more aggressive solid camshaft, more compression, etc.
How can we guess without cam specs or CR?
At least 110 hp 😁. I'm gonna guess 381 hp at 6,200 and 345 ft lbs at 5,600 rpm. My thought is with that compression ratio you want a relatively wide'ish LSA to maximize the cylinder pressure. Good luck!
I say LCA of 105 or 106 to make best use of pressure wave tuning. Depending on the intake valve size, could go to 104°. 425 to 435HP.
Your LSA logic is bass ackwards! Lower compression needs tighter LSA , which closes the intake valve sooner to build compression....
LSA has nothing to do with the compression ratio. It has everything to do with the ICL, which is completely independent of the LSA. You can have a 120 LSA with a 100 ICL if you want, or a 104 LSA with a 110 ICL. Saw your other comment, the amount of overlap doesn't have anything to do with the cylinder pressure either. All completely independent variables.
Not Enough !!!!!!!!
321 hp
close to 400 horsepower
343HP - 312TQ 6800 RPM
In the 200s
315hp/370ftlbs
325 !
366 HP @ 7,200 rpm
411 hp and 400 ft/lbs. Haven't seen the dyno results yet.
I'm going to go with 370 right at 6 thousand
380
Totally depends on cam timing, which was not shared. Wild guess... 310 hp if it's designed to peak at 5000 rpm. More (330-340 ish)if it's designed to peak at 5500.
My understanding of the small block Ford is that the bigger the cam the more horsepower. I'll bet you're pretty close. A full out stock valved but ported head with aftermarket intake and wild cam that pulls 8-10k rpm might make 400.
@@keithwiebe1787 A 289 with a custom solid flat tappet, ported factory cast iron 289 heads and a Victor Jr with 11:1 compression will make 450 hp here....at just 7000 rpm.
370hp is my guess. 👍
I'm guessing 330-340hp,but I'm probably going to be too low.
My guess is 335 horsepower.
The roller cam is going to make it real snappy. 335hp
372 😊
Id say about 350 Horse 375 ftlbs of Torque!
425 💪
375
I think some where around 320 horsepower with 295 pounds of torque
415 bhp i would say + or - 5
325hp is my number
315
I’m going to say 355hp
Artwork! 325
365hp....depends on cfm carb
379 hp 430 tq
385 hp 😊
360@ 6300
336hp 305 TQ
Close to 400 hp
330
362hp
Should make 360 HP my guess
300
350
380 horsepower 368 torque
340
340hp/320 ft-lbs torque
Vacuum advance. Is this a daily driver?
No vacuum advance. Line isn't hooked up.
310 flywheel
339
375 or so?
389hp
Well that was a Year Ago, How much did HP did it Make??
You know I have other videos on my channel, right??? 😂
@@lykinsmotorsports I searched your channel for 289. I was interested in those because I'm going to get an older Mustang
When you search my channel for "289", it's the second video in the list.
ua-cam.com/video/TgXO_y6R4ek/v-deo.html
387hp
430
415.
Cam specs? Compression ratio?
9.8:1. Cam is 220’s/230’s, with almost .600” lift.
@@lykinsmotorsports can you tell us intake flow at .450" and aprox .200" duration on the intake?
I’m guessing 320
340 HP
325hp
Should be good for 425 bhp
355
370