Mark Croxton Just added 12+ MPH to my prop

[Ospreyproduction]

You heard me right!!!!

I'm sure that you've heard my chatter about how The Tim Hackney Prop 4 Blade 14.5x30 prop I bought that craps out at about 84 MPH.......Don't get me wrong!!! I love the prop, it is the best handling prop I have and it has the best hole shot out of any I have tried....but it was like someone put the brakes on it around 84-86 MPH. I couldn't understand why. It had the strongest "pull" of any prop I had ever run, but it just wouldn't go that fast.

I have one hell of a solution. Mark Croxton

Marks High-performance Prop Service
1850 E. 225 South
Shelbyville, IN 46176
317-398-9294
[email protected]

This guy does awesome work!!!! I sent the prop up to Mark and he worked his voodoo magic on it. I ran it 96MPH the other day and had plenty of throttle left, I just ran out of space to wind it out. I'm certain that there is 100+ MPH in this prop now. I've had it before...101 with a 30 ET, 104 with a 31 Hoss but they were crappy out of the hole or not good "all around props". This Hackney prop is now "The Bomb"!

I'm finally pleased with the Hackney Prop, but my thanks goes out to Mark Croxton for the tweak job.

This guy does excellent work and I'm pleased to pass on the info.

[2fast4u2]

wow....wonder if he can do that to my yamaha drag copy....that would get my vector close to triple digits :D :eek:

[fasteddie]

I used to use him when he was with precision.
I heard that he quit bending on props and went into taxidery.
Glad to here he is back at it.
Ed

[Ospreyproduction]

I don't even know the guy. I just think that when someone does this nice of a job with anything related to this site, someone should mention it.

I wish I had another prop to send him!

[mirage101]

Mark works all of Morton Racings props.
The allison 2001 with merc drag went from
10.08 to 9.60s same 24 pitch yamaha. The
1/4 Master with merc 260 runs 9.70s with 24
pitch yamaha. Thanks Mark glad to have you
aboard.


Regards Ron

Marks High Performance Propeller
[317] 398-9294
[email protected]:

[frigginsurfacejet]

What did this cost you???

[stoker2001]

Originally posted by mirage101
Mark works all of Morton Racings props.
The allison 2001 with merc drag went from
10.08 to 9.60s same 24 pitch yamaha. The
1/4 Master with merc 260 runs 9.70s with 24
pitch yamaha. Thanks Mark glad to have you
aboard.


Regards Ron

Marks High Performance Propeller
[317] 398-9294
[email protected]: i am sure mark is good,but a half second improvement?what race association?they use electronic photo eye timing eyes?was it with same air conditions.was there visible damage to prop before mark got it?thanks

[Ray Neudecker]

I have seen some of his work and the results where they were measued electroncally have been great.

[Ray Neudecker]

This was at KDBA and Sldba sites where photo cells are used for timing. I saw gains of 2-3 tenths under the same air conditions. Drastic hole shot gains without top end loss.

[stoker2001]

out here we race IHBA which gives you 125' charge at start beam,so holeshot is not as criticle as ODBA or maybe lake draggin.what speed do you guys think you are hitting at start beam with say the 9.60 allison?

[Ospreyproduction]

I paid Mark $200 to "transform" the Hackney prop I bought. It was the 4 blade Yamaha drag "cleaper" they call it. 14.5x30

It not only screams...it looks like a million bucks.

I've spent some money on some crazy chit, a lot of it I've looked back and laughed at, but I definitely feel like I got more than my moneys worth out of that deal.

[stylishskier]

yea but if you think about it, with this prop you ARE looking back and laughing... at the people that you blow by:D

[Ray Neudecker]

IHBA and the Assn's I mentioned all use exactly the same setup. Hole shot is as critical there as ODBA. Main difference is starting dead still instead of at 6 plus MPH.

[stoker2001]

Originally posted by Ray Neudecker
IHBA and the Assn's I mentioned all use exactly the same setup. Hole shot is as critical there as ODBA. Main difference is starting dead still instead of at 6 plus MPH. i disagree,rope racing is all about leaving consistently on the countdown clock as to get a good reaction time without redlighting and runnin as close to your index without breaking out of your index.if you are good on light and know your boat will run close to number without going to quick you dont even need to worry about the track position your competitor has.i am still learning,but on my second IHBA race (two weekends ago) i took runner up out of sixteen boat field in the 10.00 class.furthermore the track for rope is truly 1320'+125' so it will require substantiably more pitch or gear then ODBA.i run 1.78 gear with 22 pitch et lightnin with extra cup that has run a best of 110mph at 9650 rpm.my best et is 9.86 with weight of 1425lbs ussing sunoco purple (no funny fuel) and no spray ;)

[Ray Neudecker]

First, you must remember that ODBA does not start at the clock, but wherever the starter deems they are lined up correctly, which makes the overall lenght of the course relatively the same. We run basically the same set up for both. The speed at which you reach the clock in bracket racing has a large effect on the ET. You are correct in the absolute necessity of a good reaction time and staying close to the bottom of the bracket in ET. The majority of bracket races are determined by the reaction time since most of the racers here are very much dialed in on ET. Congratulations on your good showing at your second race. I suspect some of your opinions may change with more experience with different racing conditions. The day you break out and lose to someone you had covered because you didn't pay attention to the track position and lift slightly will be a sad one. Best of luck. 10 seconds is a tough bracket and outside this area, there aren't many outboards runnng succesfully in it.

[stoker2001]

Originally posted by Ray Neudecker
. Congratulations on your good showing at your second race. I suspect some of your opinions may change with more experience with different racing conditions. The day you break out and lose to someone you had covered because you didn't pay attention to the track position and lift slightly will be a sad one. Best of luck. 10 seconds is a tough bracket and outside this area, there aren't many outboards runnng succesfully in it. thanks,you make a good point.this actually happened in the final,i was in right lane and treed my competitor by .11 (of course you dont know this till you get your time slip).well,i new i would breakout if i didnt lift.so right close to finish i look to see where he is and notice he is hugging the left side of his left lane,this makes it hard to tell how far you are ahead (cause of seperation).well,i brakeout by .03 and he ran 10.005.we gave the spectators a good showing and everyone was real nice considering outboards are a real minority out here.the winner thanked me for knocking out some of the guys that he was in the points chase with.i heard about you all in middle and eastern states,you all live and breath it.i get drag boat review and cant believe how fierce the competition is!!!!i will try and post time slip of second round (call it beginners luck).perfect reaction with perfect 10.000.notice slow trap speed

[Ray Neudecker]

Great job on the perfect run. Those are often a once in a lifetime occasion. Need to put that time slip in plastic and hang it on the wall.