525 A460 New Dyno results

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Post  steven gregoire on 10th June 2014, 10:51

Built a new 525 A head motor over the winter.  No Dyno time just build it and put it in the New Dragster.    without any major tuning  I ran 7.72 @ 175 MPH in a 1900lb  engine on a stick

Motor is a460 block, Crower 4.125 crank, Oliver 6.80 rod, 13.5-1 comp Diamond Pistons, As cast a460 340 CC heads with 2.30 intake,  Ultradyne .750 lift cam with 112 center line. WW 1.7 ratio shaft rockers, Danny bee belt drive. TFS intake, Gary Williams 1050 Dominator

This sucker is deadly.   this weekend ran  7.728, 7.731, 7.730, 7.738, 7.734.   i may never change my dial in again

Thanks for the parts and advice this off season Lem !


Last edited by steven gregoire on 18th April 2016, 15:30; edited 1 time in total
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Post  sg86coupe on 10th June 2014, 23:14

Nice that's how you brackett race. How big is the bore, how much do you turn it and what is 1/8 mile #

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Post  steven gregoire on 11th June 2014, 08:29

its 4.500 bore.     i shift at 7400 and cross the line at 7500. with 33.5x17 hoosiers and 4.10 gear.    and it ran a 4.93 @ 140 mph in the 1/8th mile.

im putting taller 34.5 slicks on it to get it down around 7200 RPMs
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Post  steve1071 on 11th June 2014, 11:29

I think I would change the gear ,those big tires are heavy .

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Post  Lem Evans on 11th June 2014, 11:30

Cool  Good luck.

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Post  70FB on 11th June 2014, 19:29

What does it weigh if you don't mind me asking? Thanks.
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Post  norm on 11th June 2014, 23:20

steven gregoire wrote: 1900lb  engine on a stick 
                                 
                                           


70FB wrote:What does it weigh if you don't mind me asking? Thanks.
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Post  powerstrokeace on 8th July 2014, 00:48

wow both of my junk only turns 6800 at the lights with a 33.0 tire in one car and 33.5 tire in the other with the 4.10's. of course this is a mile with a density adjusted altitude of 8800-9400 feet.

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Post  steven gregoire on 18th April 2016, 15:26

Well i made some upgrades,and got it on the dyno.

Send the heads to Total Engine Airflow. 2.35 intake 436 @ 0.800, 1.88 ex 335 @ 0.800

New Comp cam from Lem Sorry guys i dont have the cam card, but i will scan and post later if interested.

951 Hp @7500
735 ft/lbs @ 6100

30* timing.

i did try VPs new X 16 fuel. it made more power that C12,C14,C16. pretty much better than everything. That being said, i would expect the oxygenated fuels to make more power. Im just NOT spending the money.


Thank you for you help this off season LEM !!!!!!!!!!!!!!!!!
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Post  Mark Miller on 19th April 2016, 01:58

steven gregoire wrote:Well i made some upgrades,and got it on the dyno.

Send the heads to Total Engine Airflow.   2.35 intake   436 @ 0.800,  1.88 ex   335 @ 0.800

New Comp cam from Lem    Sorry guys i dont have the cam card, but i will scan and post later if interested.

951 Hp @7500
735 ft/lbs @ 6100

30* timing.

i did try VPs new X 16 fuel.  it made more power that C12,C14,C16.   pretty much better than everything.    That being said, i would expect the oxygenated fuels to make more power.  Im just NOT spending the money.


Thank you for you help this off season LEM !!!!!!!!!!!!!!!!!

Pretty good numbers IMO for 525 Cubic Inches!!! Smile Smile Smile

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Post  68formalGT on 19th April 2016, 11:35

Mark Miller wrote:
steven gregoire wrote:Well i made some upgrades,and got it on the dyno.

Send the heads to Total Engine Airflow.   2.35 intake   436 @ 0.800,  1.88 ex   335 @ 0.800

New Comp cam from Lem    Sorry guys i dont have the cam card, but i will scan and post later if interested.

951 Hp @7500
735 ft/lbs @ 6100

30* timing.

i did try VPs new X 16 fuel.  it made more power that C12,C14,C16.   pretty much better than everything.    That being said, i would expect the oxygenated fuels to make more power.  Im just NOT spending the money.


Thank you for you help this off season LEM !!!!!!!!!!!!!!!!!

Pretty good numbers IMO for 525 Cubic Inches!!! Smile Smile Smile

Very impressive for 525".
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Post  dirt_worker on 19th April 2016, 11:55

Nice build! How much power was the oxygenated fuel worth?
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Post  steven gregoire on 19th April 2016, 12:47

thanks guys.   i was quite happy as well.   im sure that i could ring more out of it if i went for the big port job.   But it is a bracket dragster.  


I did not even try Q16 or other oxygenated fuels..Since i knew i was not going to tolerate the cost or the fuel system maintenance. The X-16 i am running is not oxygenated. it is VPs new fuel to give the Natural aspirated guys a fuel with a much better vapor point compared to C16. and its a hell of alot cheaper that C16 too.
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Post  BigBlockFalcon on 19th April 2016, 15:01

Those are really good numbers. I don't think mine is making that much. I am running a 526ci. With the old motorsports A heads. 4.29 stroke x 4.42 bore. The bore does hurt the heads some. Well I think they do. But it is a Bracket motor. Best I ever ran is 4.94@139. But its consistently 5.05@136. My Dragster weights 1968lbs with me in it. I think the 4.50 bore would help it out some. But it's going into a door car now and will be plenty fast for the no box and hot rod car


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Post  Lem Evans on 19th April 2016, 20:05

Cool  Steven, go have some fun.

The engine would love some Q16 and a 1250 carb. Wink

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Post  steven gregoire on 30th September 2016, 14:46

Sorry i took so long.  i did promise cam card and dyno sheet.

I know the AFR looks lean, but that is not the o2 reading.  It is the calculated AFR based off of air flow, and fuel flow into the bowls.   enjoy !


[ur525  A460  New Dyno results Imag0010l=https://servimg.com/view/18809856/14]525  A460  New Dyno results Imag0011[/url]
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Post  csdrag on 29th December 2016, 10:43

this is a nice build...did you dyno it with the same 1050 you had before the modifications?

steven gregoire wrote:thanks guys.   i was quite happy as well.   im sure that i could ring more out of it if i went for the big port job.   But it is a bracket dragster.  


I did not even try Q16 or other oxygenated fuels..Since i knew i was not going to tolerate the cost or the fuel system maintenance.  The X-16 i am running is not oxygenated.  it is VPs new fuel to give the Natural aspirated guys a fuel with a much better vapor point compared to C16.     and its a hell of alot cheaper that C16 too.
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Post  steven gregoire on 11th January 2017, 11:14

Yes, i had the port work done , and a cam swap. everything else stayed the same
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