I figured the trick flow springs would do better than that.. but i didn't buy the top end kit.. got the hyd. roller onesI'm sure it'll run outta valve spring before 6K.
I figured the trick flow springs would do better than that.. but i didn't buy the top end kit.. got the hyd. roller onesI'm sure it'll run outta valve spring before 6K.
I was estimating based off this 323 that makes 477 hp @ 6500 rpms and 427 tq @ 4,900 rpms, making with a decent 1.32 lbs-ft per cid and 90% of of peak torque at peak power.Probably not that high. Maybe 6500 and that’s barely above an idle in 2024.
RPM | TQ | HP |
2,500 | 337 | 161 |
2,600 | 350 | 173 |
2,700 | 357 | 183 |
2,800 | 357 | 190 |
2,900 | 356 | 196 |
3,000 | 351 | 201 |
3,100 | 345 | 204 |
3,200 | 339 | 207 |
3,300 | 343 | 216 |
3,400 | 356 | 230 |
3,500 | 371 | 247 |
3,600 | 385 | 264 |
3,700 | 396 | 279 |
3,800 | 404 | 292 |
3,900 | 410 | 305 |
4,000 | 415 | 316 |
4,100 | 418 | 327 |
4,200 | 420 | 336 |
4,300 | 422 | 345 |
4,400 | 421 | 353 |
4,500 | 420 | 360 |
4,600 | 421 | 369 |
4,700 | 425 | 380 |
4,800 | 426 | 390 |
4,900 | 427 | 398 |
5,000 | 427 | 407 |
5,100 | 427 | 414 |
5,200 | 426 | 421 |
5,300 | 425 | 428 |
5,400 | 423 | 435 |
5,500 | 421 | 440 |
5,600 | 419 | 446 |
5,700 | 417 | 453 |
5,800 | 415 | 458 |
5,900 | 412 | 462 |
6,000 | 407 | 465 |
6,100 | 401 | 466 |
6,200 | 397 | 469 |
6,300 | 393 | 471 |
6,400 | 390 | 475 |
6,500 | 386 | 477 |
I was estimating based off this 323 that makes 477 hp @ 6500 roms and 427 tq @ 4,900 rpms, making with a decent 1.32 lbs-ft per cid and 90% of of peak torque at peak power.
He just needs to find 18 lbs-ft @ 6,500 rpms to hit 500 hp (404 lbs-ft) from the 477 hp (386 lbs-ft).
https://www.motortrend.com/articles/0901phr-mopar-318-magnum-engine/
RPM TQ HP 2,500 337 161 2,600 350 173 2,700 357 183 2,800 357 190 2,900 356 196 3,000 351 201 3,100 345 204 3,200 339 207 3,300 343 216 3,400 356 230 3,500 371 247 3,600 385 264 3,700 396 279 3,800 404 292 3,900 410 305 4,000 415 316 4,100 418 327 4,200 420 336 4,300 422 345 4,400 421 353 4,500 420 360 4,600 421 369 4,700 425 380 4,800 426 390 4,900 427 398 5,000 427 407 5,100 427 414 5,200 426 421 5,300 425 428 5,400 423 435 5,500 421 440 5,600 419 446 5,700 417 453 5,800 415 458 5,900 412 462 6,000 407 465 6,100 401 466 6,200 397 469 6,300 393 471 6,400 390 475 6,500 386 477
You left that info out of the comment I replied to.I figured the trick flow springs would do better than that.. but i didn't buy the top end kit.. got the hyd. roller ones
WTF you don't know my combo?! that hurts manYou left that info out of the comment I replied to.
LOL. My bad.WTF you don't know my combo?! that hurts manDoesn't matter... i will never spin it over 5500.. need to stay under the speed limit!
RRR, have a serious question though... i'm a ******* idiot and do everything wrong and looking at my receipt for my heads i bought the TF's with the flat tappet springs, i know it just comes down to rate and such and i think they are fine. If i did my math right way back my OTN pressure is 305#,LOL. My bad.
Per the contest rules for that years enginemasters competition, the engine was scored from 2500 to 6500, and the compression had to be under 10.5 to 1, hence how it was built.It’s a point low on compression for a decent pump gas build.
If it was 11.5:1 it would increase power without increasing RPM.
Per the contest rules for that years enginemasters competition, the engine was scored from 2500 to 6500, and the compression had to be under 10.5 to 1, hence how it was built.
BTW.. the 248/248 cam used in the competition wasn’t the one I used in the car.
I had a much smaller 230/236 in it. Was worried about those beehives living in a real world street/ strip environment. That 248 cam was pretty nasty…lol
How was the streetability ?Per the contest rules for that years enginemasters competition, the engine was scored from 2500 to 6500, and the compression had to be under 10.5 to 1, hence how it was built.
BTW.. the 248/248 cam used in the competition wasn’t the one I used in the car.
I had a much smaller 230/236 in it. Was worried about those beehives living in a real world street/ strip environment. That 248 cam was pretty nasty…lol
Little sucker revved like a gas weed whacker
K.. since we are discussing and not arguing for once bout 318s... my 318 is a bone stock '85 bottom end... keep under 6k and treat it nice? just curious where the worry point should start...
I saw the rules. I was meaning I wouldn’t build it that low on pump gas. Unless the rules made me.
Could be cheaper to produce and if it still does the job needed, they are just happy with that and will say, Just send it, your good to go.”I had a question bout that also, if beehives are great, and supposed to help oscillation and all that why do companies still use normal straight dual springs?
How was the streetability ?
First, I know UTG has been wrong on a few topics, but it's usually minor or is corrected sometimes. I don't agree with everything he says, so most of it is entertainment to me.Not sure if you remember Uncle Tony showcased this in a video saying the timing chain broke...his nut swingers ate it up...
You're wasting your breath. That guy has a total hate for Tony Defeo that defies logic.First, I know UTG has been wrong on a few topics, but it's usually minor or is corrected sometimes. I don't agree with everything he says, so most of it is entertainment to me.
Second, He never said the timing chain broke.
Third, he said that he could be wrong and it's just his assumption of what may have happened, which was the timing chain being too tight that could effect things.
Fourth, whether it's intended or accidental you are putting words in someones mouth when you rely on your misunderstood memory. Even I need to fact check myself sometime so I don't make false or misinformed claims. And remember, there are other content creators here, you could accidentally make false claims about them too.
Good looking heads.The problem is finding R/T heads. You’d be lucky to find them to start with. I was with the above heads and traded a set of Edelbrock heads for them. This was the direction of the other guy and I have a curiosity about ‘em. The above are the 2.02/1.60 heads. They flowed pretty good for a OOTB casting.
Good looking heads.
I’m stalled on them like all projects around here - LMAO - grooooooannnn - LOL
They will be coupled with a small Howard’s cam. 220*’s@050 - 540 lift - 108/104 installed intake on a stock 5.9 short block with a RPM/750/Hooker 1–3/4 Super Comp headers - 2-1/2 exhaust.
2500 stall 727/3.55’s in a ‘79 Magnum.