Going to the dyno..

Gunna take my "junk yard 466" to the dyno this friday for shits and gigs. If anyone wants to try and guess what it will make the specs are as follows, around 11:1 466 with ported TFS streets and victor with 1050 dommy. Cam is a solid flat tappet .620in .640ex. lift and .255in .262ex duration maybe a little off on the lift but not much. Using a set of 2" headers fenderwell for a truck. I dont reall have any expectations high or low for this motor I have been running this motor for a few years and has always seemed to run ok and been fun. Tell me what u guys think!

I'll guess 615 horsepower.

Later Mark.

Here is my WAG 583 HP & 520 LB FT of TQ.

Love to see the actual #'s.

Hey thanks guys just got back had alot fun the engine responded well to everything we did but ended up 649 hp @6500rpm and 594 tq at 4700rpm on pump gas. And we ran it on alky for fun and ended the day with 676 hp @6500 and 624 tq@ 5900. I was pretty pleased, mor info to come! Thanks, Pat...

wow ...impressive numbers man !!! nice jump going to alky

should have tried some M5 alky...................

richter69 wrote:should have tried some M5 alky...................

Power adder...!

only for the clueless..............

richter69 wrote:only for the clueless..............

10-4

Nice Dyno Numbers it made more power then i guessed it would.

Later Mark.

I was going to reply a guess of 650......then I saw the results lol.

And again nice gain with the alky. What size and brand carb was it?

Alky made that much of a difference

I wonder if E-85 would be about the same

very nice numbers for the combo and sounds like you were tuning it well. Let us know more info when you can and put it in the ride and have some fun!!!

Congrats Pat....nice engine

Thanks guys, Tq. on alky 624 @ 4900 not 5900 like i posted above typo. It was a adp 1050 alky carb my buddy had with no tuning we just made a couple of pulls with it i didnt expect to see that much gain. On gas it was a ProSystems 1050 wich seemed to be right on we did change jets from 88 sq. to 91 sq. The engine was still climbing at 6500 but it looked like at 61-6300 had a little blip in the graph and would start to pick back up Im thinking maybe valve float? Going from 1.75 headers to 2 in. gained 25+ hp and around 20 ft.lbs also pushing the hp up past 6500 as aposed to peaking at 6100 with the smaller header.
On gas 4 gal. 92 oct. 1 gal. 112
Hp TQ.
4600 507.5 579.5
4700 524.4 586
4800 539.5 590.3
4900 553.4 593.1
5000 565.6 594.1
5100 575.9 593.1
5200 584.6 590.4
5300 591.1 585.7
5400 600.5 584
5500 610 582.5
5600 618.2 579.8
5700 624.4 575.3
5800 629.8 570.3
5900 637.3 567.3
6000 643.1 562.9
6100 644.7 555.1
6200 644.8 546.2
6300 647.2 539.5
6400 648.8 532.4
6500 649.1 524.4

Thanks Lem, Got me thinking how it would of done befor the head work we had done
on alky
HP. TQ.
4600 541.5 618.2
4700 557.6 623.1
4800 570.7 623.9
4900 582.2 624.1
5000 593.3 623.2
5100 604.1 622.1
5200 616 622.2
5300 626.7 621
5400 637 619.5
5500 645.7 616.6
5600 650.4 610
5700 656.3 604.7
5800 662.6 600
5900 668.9 595.4
6000 675.5 591.3
6100 676.6 582.5
6200 673.5 570.5
6300 673.7 561.6
6400 675.1 554
6500 676 546.2

On alky the blip really showed up and dropped 3 hp any ideas I was thinking maybe valve float?

IMO APD makes the best alkly carbs.

what rods do you have in this motor?

It has Scat h beams in it with a srp pistons, block has never been decked so they're in the hole a fair amount. Thanks, Pat...

Not bad at all

Alky is looking to become my standard gas at this rate!!

Yea not sure about switching to alky but is tempting. I have a good feeling where the compression is on this thing running it on pure race gas would have picked it up also, how much hard to say. We run these things on the dunes so alky might not be all that easy to keep in the tank. Hey Norm I will still have to spray a 300 hp shot to keep up with you and Joe

P.Lafferty wrote:Yea not sure about switching to alky but is tempting. I have a good feeling where the compression is on this thing running it on pure race gas would have picked it up also, how much hard to say. We run these things on the dunes so alky might not be all that easy to keep in the tank. Hey Norm I will still have to spray a 300 hp shot to keep up with you and Joe

We put alky on the little 85 Chevy p/u..............9.5-1 pump gas motor that was tunned on the dyno wityh the gas set up, it picked up a solid 4 tenths in change in the 1/8, The truck is heavy, tight converter, 3.70 gear....it really liked the extra torque.

richter69 wrote:

P.Lafferty wrote:Yea not sure about switching to alky but is tempting. I have a good feeling where the compression is on this thing running it on pure race gas would have picked it up also, how much hard to say. We run these things on the dunes so alky might not be all that easy to keep in the tank. Hey Norm I will still have to spray a 300 hp shot to keep up with you and Joe

We put alky on the little 85 Chevy p/u..............9.5-1 pump gas motor that was tunned on the dyno wityh the gas set up, it picked up a solid 4 tenths in change in the 1/8, The truck is heavy, tight converter, 3.70 gear....it really liked the extra torque.

4 tenths?! thats insane! i think i know now what fuel my big blocks going to be burning now

Richter I have a feeling my heap could benefit from the torque also https://www.youtube.com/watch?v=jfMU4qdJloA This was befor I had Lem get me fixed up with some new valves and valve job on the streets, which picked the heads up alot and with the small headers.