Little Mouse

403 cu. Solid flat tappet cam, 10.5 compression, 91 octane fuel, 6500 rpm limit. Heads ended up at 230 cc in size, single plane manifold, 1050 dominator carb.

tq numbers
2500 = 474
2600 = 477
2700 = 481
2800 = 489
2900 = 493
3000 = 495
3100 = 495
3200 = 496
3300 = 494
3400 = 490
3500 = 485
3600 = 484
3700 = 489
3800 = 494
3900 = 498
4000 = 504
4100 = 510
4200 = 518
4300 = 527
4400 = 535
4500 = 545
4600 = 555
4700 = 565
4800 = 573
4900 = 578
5000 = 580
5100 = 581
5200 = 578
5300 = 578
5400 = 579
5500 = 578
5600 = 578
5700 = 577
5800 = 575
5900 = 570
6000 = 565
6100 = 561
6200 = 558
6300 = 553
6400 = 548
6500 = 544

ok 581 ft lbs at 5100 holds on to it very well. 474 ft lbs at only 2500 rpm. looks like nice street manners everywhere.

now will start with the horse power going to take over the job at hand, keep on pulling baby lol.
5100 = tq peak 581
HP chart
5200 = 573
5300 = 584
5400 = 595
5500 = 605
5600 = 616
5700 = 626
5800 = 635
5900 = 640
6000 = 645
6100 = 651
6200 = 658
6300 = 663
6400 = 668
6500 = 673

Huum lets think about this we know for a fact a roller cam has more velocity then a flat tappet can get the valve open at a quicker rate of velocity. But the rules said no roller cam so they could have made a bit more power not a lot.

Looking for a volunteer to call BES. This monster 230 head, big *** racing manifold and dominator 1050 carb has to go. I'm not calling them.

Little Mouse

.697/670 lift on the flat tappet cam valve spring rate is only 270.

he was stuck with the .842 lifter size

When he tailor made the head had really good mid lift flow but choked at anything over .600 lift. used 6280/6284 comp lobes with a 1.9/.1.8 Jessel shaft.

270 rate spring controlling this.

Little Mouse

What he did on the head was kind of cool. He went to Australian, racer pro same people that make the ford Cleveland heads for John Kasse. most likely started out with a 210 runner head has to have at least a 40/60 changed valve placement. He keeps the entry runner cross section not much bigger then stock for high velocity. Then he makes the bowl area bigger and creates a big valve opening path, uses a 2.19 size intake valve.

MotorHead

Very nice power but from what I've been reading around here you could probably get a few more ponies with smaller heads and a smaller cam

73C34me

heads are 230 cc? Or 230 cfm flow rate?

Little Mouse

they flowed 345 on the intake 230 on the exhaust, head ended up at 230cc int. Its a custom tailored head deal and he worked on the intake manifold.

BES racing if not winning the contest is alway's way up close in the top range.

This is not something the average Joe could pull off.

ezobens

Why not just provide the link?
http://www.popularhotrodding.com/tec...ge/index1.html

I wonder what it idles at and at what vacuum?

Little Mouse

These folks at BES are at the top of the competition all the time not something just anybody can pull off. They can figure out how to pack that air in there big time. no a smaller head, intake and carb would not work or they would have used it.

You could do a 1.7 ratio rocker with a pro55 core and tool steel lifter like they used and it would last. But 1.9 might throw a real anchor into the picture on it lasting anytime.

You can increase the velocity on a flat tappet and the amount of lift for the amount of duration used if you have a cam made up to use .904 You have then taken away more of a solid rollers advantage. But the rules said he had to use the factory .842 lifter dia.

What i think is cool about it he was able to control his aggressive cam with only a 270 rate behive spring. I have no doubt if it were a higher rpm competition he would have to go to a higher rate behive then the one he used.

270 rate is nothing LOL.

Im going to do a tool steel lifter .904 just because i like flat tappet cams have Mike Jones make it for me. Mike Jones and Chris Straub are both respected cam grinders. Already told Mike Jones i would use him before Straub ever showed up on this forum. Would be just as comfortable using him for my cam. But i won't tell someone im going to use them then not do it, unless there's just good reason i need to. I don't like going back on my word in anything i do.

StraubTech

Not many spending the money on their street engine that it takes to have and EMC engine built. With that kind of budget one can do quite creative things

Little Mouse

engine was built in 2007 he has around same or less money in it then pauldana's. Now if you had to pay someone to do what he did to the heads and intake would get higher he already had that talent. Block world products $1400.00, Camshaft there around $220.00 tool steel lifters $320.00 been shopping for those less money then all the parts for a roller cam, Cheap eagle crankshaft and eagle rods. The steffs pan could cost 750 to 1500 but you would not need it on a 3.75 stroke build something he already had lying around for a nova car why not use it its free to him. Cheaper type shaft system then some have on this forum. Pauldana has probably $2000.00 in fuel injection, around $550.00 in the afr titan manifold. Reason he built the chevy was to keep his cost down over the usual winner Cleveland fords. No doubt with his talent roller cam fuel injection more precise, power would even be higher.

I guess they had a contest one yr i did not look at you could use an overhead cam engine, no one was in the top field with a push rod engine rules were changed not to allow them anymore lol.

7t9l82

i was always a fan of the Chrysler lifter back in the day before you could buy larger ones. always made a hotter cam hold up better in a street car. stock eliminator guys were doing this waaaay back, i think some got caught with them but i don't remember it being a big issue.
the build listed is pretty impressive.

StraubTech

Your leaving out the $2M in equipment that is in his shop.

Little Mouse

Yes im leaving out the multi millions in equipment that AFR has to build heads, equipment to test them. Multi millions that world products has in stuff to make blocks or whatever, im sure this guy does not have just junk to work with but nothing whatsoever like they have at there disposal. This guy has the porting talent he just used cheap australia heads. At 270 punny rate of spring pressure 6500 rpm he did not need the shaft system at all to control it. But the heads he used wanting to do the big 2.19 intake valve has moved valve centers so he was forced to use a shaft system. Using his talent he has no more then paul has in his competition ported AFRs in the heads. But like i said earlier the average joe hot rodder does not have his porting knowledge to work on the heads and intake. These guys are probably one of the best in the country up there competing with a 13 time IHRA championship's john Kasse. You see him come on speed talk every once in a great while along with others that do this competition.

Little Mouse

Chrysler had first class engineers built very good long gevity engines far better then what gm did at the time.

hugie82

Nice stump puller and that's a good candidate for an engine competition!

StraubTech

Spintron testing is $250 an hour. The top EMC engines have hours on one of these.

Little Mouse

This man has put together plenty of engines would not need spintron testing for a simple flat tappet cam at 6500 rpm to figure out a spring for it. A 270 rate spring controlled it no problem.


Comp cam lobes he used. Probably knows someone with a brain there he could talk to them tell him what spring he needed if nothing else.

StraubTech

From knowing how these EMC engines are done. Supply parts to multiple competitors over the years. These engines projects start as soon as the rules are released and they have 100's of hours in them.

StraubTech

Jon Kaase at Morel....

http://www.straubtechnologies.com/apparel/

Little Mouse

Be interesting to see where the power was past 6500 looked to be still climbing well.

Think i saw a Pontiac engine that topped out at 6,000 rpm at 805 hp did not win one yr. May have to look it up think it might have been built by Kasse don't remember. Bit of a ford man may have imagined it was kasse lol.