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Dyno Time Finally RESULTS IN #2710720
10/28/19 06:29 PM
10/28/19 06:29 PM
Joined: Jun 2015
Posts: 122
TN
HDNMOPERS Offline OP
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Finally getting to dyno my engine. Will be on the dyno at Precision Machine Service in Pigeon Forge Tn tomorrow morning. Go on their FB if you want see other dyno runs they have done. Hoping Matt Hensley can make it to kinda over see the dyno session. Since he did the build. The guess the number game is on. 100% street engine build for now. May change cams later. If I want it a little more street rowdy. So here's the build.
Low Deck 512
Molner crank and rods Diamond dished pistons 10.3 comp
Trick Flow 240s ported by Larry Smith B3 geometry correction 1.6 RAU rockers
M1 single plane ported by Larry Smith
850 Thumper Carb
Dwayne Porter spec Solid FT cam 112 LSA in at 108 Int 244@50 .555 lift Ex 252@50 .564 Lift
Dyno headers are 2 inch. Only size he had


Little Surprised it didn't pull any further than it did. HP about 5 over what I had in my head. TQ is about 40 over what I thought it would be. We only pulled to 5700 cause it just didn't make anymore after 5400-5500. Messed with some timing and jetting. It's safe and will tune more once it's in the car. Just had him print out to peak. Thanks to all involved Matt and Ken Hensley Dominic Thumper Dwayne Porter Larry Smith and Mike Beachal

SAE Correction Factor.gifSTD Standard Correction Factor.gif
Last edited by HDNMOPERS; 10/29/19 07:08 PM.
Re: Dyno Time Finally [Re: HDNMOPERS] #2710732
10/28/19 07:01 PM
10/28/19 07:01 PM
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KATY TEXAS
csk Offline
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KATY TEXAS
600


[img]https://live.staticflickr.com/65535/49699175113_7f39889fbc.jpg[/img]87379033_2843330729058951_8904448720599252992_o by Charlie Keel, on Flickr
1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 3.54gear A518 OD 4100lb,11.04@123 full street car trim
Re: Dyno Time Finally [Re: csk] #2710744
10/28/19 07:25 PM
10/28/19 07:25 PM
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Portage,michigan
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Matt Hensley and his dad are two fine people with great attention to detail.
Bet you will be happy


69 Dart GTS, performance upgrades in progress
11.26@ 118.40 best so far. Stock 360 shortblock with eddie heads.
3285 race weight
Re: Dyno Time Finally [Re: HDNMOPERS] #2710761
10/28/19 08:14 PM
10/28/19 08:14 PM
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Washington
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madscientist Offline
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Originally Posted by HDNMOPERS
Finally getting to dyno my engine. Will be on the dyno at Precision Machine Service in Pigeon Forge Tn tomorrow morning. Go on their FB if you want see other dyno runs they have done. Hoping Matt Hensley can make it to kinda over see the dyno session. Since he did the build. The guess the number game is on. 100% street engine build for now. May change cams later. If I want it a little more street rowdy. So here's the build.
Low Deck 512
Molner crank and rods Diamond dished pistons 10.3 comp
Trick Flow 240s ported by Larry Smith B3 geometry correction 1.6 RAU rockers
M1 single plane ported by Larry Smith
850 Thumper Carb
Dwayne Porter spec Solid FT cam 112 LSA in at 108 Int 244@50 .555 lift Ex 252@50 .564 Lift
Dyno headers are 2 inch. Only size he had



Only thing that jumps out at me is the small carb. I'm surprised Dom didn't talk you into a dominator.

Everything else looks pretty dang nice. A Porter cam, a quality cylinder head guy and you fixed the geometry. Everything to like.

On pump gas, 600-620 should be pretty easy.


Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
Re: Dyno Time Finally [Re: B3422W5] #2710764
10/28/19 08:23 PM
10/28/19 08:23 PM
Joined: Jun 2015
Posts: 122
TN
HDNMOPERS Offline OP
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Absolutely they are. They were very helpful through out the whole build. Very cool to talk with Ken an Matt about the SS Hemi stuff and the Allen Johnson pro stock stuff.

Last edited by HDNMOPERS; 10/28/19 08:25 PM.
Re: Dyno Time Finally [Re: madscientist] #2710765
10/28/19 08:31 PM
10/28/19 08:31 PM
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TN
HDNMOPERS Offline OP
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Funny you say that about Dominic. We talked about a Dominator. We decided to go with the 850 for now with the option to a bigger carb later.

Re: Dyno Time Finally [Re: HDNMOPERS] #2710766
10/28/19 08:33 PM
10/28/19 08:33 PM
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New York, USA
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I guess 645hp. Any idea of head flow numbers? It sure has everything going for it. Best of luck!


1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
Re: Dyno Time Finally [Re: HDNMOPERS] #2710784
10/28/19 09:23 PM
10/28/19 09:23 PM
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Bend,OR USA
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The dyno results will depend on how good the air is their tomorrow, I know most dyno correct to a SAE standard so ask them to give you the actual as well as the corrected results to compare both. scope up
If it doesn't make more than 630 HP. and 670+ Ft lbs. torque something is amiss I fear twocents work
Let us know the air fuel results are also please up Are you going to do carb (jetting) and engine timing tuning tests also?
I'm thinking between 12.8 to 13.5 AFR will be near the best on pump gas luck scope


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Dyno Time Finally [Re: Cab_Burge] #2710790
10/28/19 09:50 PM
10/28/19 09:50 PM
Joined: Jun 2015
Posts: 122
TN
HDNMOPERS Offline OP
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Yes will be some carb and timing tuning.

Re: Dyno Time Finally [Re: HDNMOPERS] #2710795
10/28/19 10:12 PM
10/28/19 10:12 PM
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Posts: 6,804
Mt Morris Michigan
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610@5800

Re: Dyno Time Finally [Re: mopar dave] #2710811
10/28/19 11:59 PM
10/28/19 11:59 PM
Joined: Mar 2005
Posts: 2,413
North Carolina
sasquatch Offline
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Peak torque of 660 at 5600
Peak HP of 633 at around 6500
Just some educated guesses. I have ran a few if Larrys across the dyno....Might make more but the street will love that thing. Great out of the gate. Low RPM torque will be impressive.
Todd

Last edited by sasquatch; 10/29/19 12:00 AM.
Re: Dyno Time Finally [Re: sasquatch] #2710912
10/29/19 11:52 AM
10/29/19 11:52 AM
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So. Burlington, Vt.
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Quote
Peak torque of 660 at 5600
Peak HP of 633 at around 6500


If the motor made 660tq@5600....... that would be 703hp at the same rpm.

I really try not to “race dyno’s”, since there can be a lot of factors that influence the final results, but I’ll put it this way......
If I were testing it here with 2” headers, I’d be looking for 650-660tq in the 46-4800 range and about 630-640hp peak in the 6000-6300 range.

I haven’t run anything yet myself with the TF heads at all..... so just pure speculation on my part.
I’ve added a few hundred rpm to the peaks on my guesses based on the added porting of the heads and the intake being ported.
Otherwise, stroker BB Mopars with short cams and std port heads usually peak pretty early.

The cam is small, based on what the original criteria was for where the motor was going to end up and how it would be used.
If the goal were just to make a big number.......there’s certainly easy power to be made by swapping to a longer duration cam.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Dyno Time Finally [Re: fast68plymouth] #2710937
10/29/19 02:09 PM
10/29/19 02:09 PM
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Oregon
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That engine is similar to the 496 inch engine in my Coronet. My engine made 613 hp at 5800 and 631 torque at 4800.

Re: Dyno Time Finally [Re: AndyF] #2710954
10/29/19 03:17 PM
10/29/19 03:17 PM
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So. Burlington, Vt.
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If the hp ends up peaking closer to your 5800 as opposed to 6000-6300....... then I’d expect the hp number to be lower than what I predicted.

I’d be pretty surprised if it couldn’t make 650ft/lbs........ how far up the power curve it can hang on to it with the small cam is the question mark for me.
Like I said...... I nudged the peak rpm up a bit because of the porting.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Dyno Time Finally [Re: fast68plymouth] #2710975
10/29/19 05:10 PM
10/29/19 05:10 PM
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Oregon
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Could happen, just depends on how well the parts are matched. I have a TF intake on my engine which is a better design than the M1 but a ported M1 might work pretty good. My cam is a hyd roller and a touch smaller but it all depends on the combo. The TF heads work pretty well with some cams and don't work so well with other cams. Who knows how those heads will work once they've been ported. If all the parts are working together then it could be a 625/650 engine.

Re: Dyno Time Finally [Re: AndyF] #2711007
10/29/19 07:34 PM
10/29/19 07:34 PM
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So. Burlington, Vt.
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Is there a reason they stopped the pulls so low?

Carb looks like it goes pretty rich within a few hundred rpm at the top of the pull.

3 columns of data agree..... bsfc, fuel flow, a/f ratio.

Pretty big numbers though.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Dyno Time Finally [Re: fast68plymouth] #2711012
10/29/19 07:46 PM
10/29/19 07:46 PM
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Sydney,Australia
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nice number . very small cam for a 512 . be great in a heavy street car or truck .

Tex


New best ET 10.259@129.65 .
New best MPH 130.32
Finally fitted a solid cam,
stepped it up a bit more
3690lbs through the mufflers
New World block 3780lbs 10.278@130.80
Power by Tex's Automotive
Re: Dyno Time Finally [Re: fast68plymouth] #2711015
10/29/19 07:59 PM
10/29/19 07:59 PM
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TN
HDNMOPERS Offline OP
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Dwayne we pulled to 5700 it just didn't make anymore above 5400-5500. I had him just print to peak. Yeah talk to Dominic after about it going rich on top. Had no phone reception where the dyno was at. He told me what it was most likely doing and what to change. Just wish we could of talked during the session.

Last edited by HDNMOPERS; 10/29/19 08:02 PM.
Re: Dyno Time Finally [Re: tex013] #2711016
10/29/19 08:00 PM
10/29/19 08:00 PM
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Wichita
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Originally Posted by tex013
nice number . very small cam for a 512 . be great in a heavy street car or truck .

Tex


My combo is very similar! Don't make the mistake of a loose converter or deep gears.

Mine is so much fun on the street and we have a ball racing it as well.


'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.40 @ 130mph with a 200 shot of nitrous. 6.48 @ 105mph in the 1/8th. 1.37 60 ft.

Re: Dyno Time Finally [Re: HDNMOPERS] #2711017
10/29/19 08:09 PM
10/29/19 08:09 PM
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So. Burlington, Vt.
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Originally Posted by HDNMOPERS
Dwayne we pulled to 5700 it just didn't make anymore above 5400-5500. I had him just print to peak. Yeah talk to Dominic after about it going rich on top. Had no phone reception where the dyno was at. He told me what it was most likely doing and what to change. Just wish we could of talked during the session.


My guess is, had you been able to get the fuel curve straightened out, it would have hung on a bit better.

Even with it going pretty rich several lines earlier than 5400, the numbers were still trending upwards.

Were the headers dyno headers, regular headers, or fenderwell headers?

No dyno shop carb on hand to try?


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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