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-   -   Oval Piston Roll Call!! (https://www.duramaxdiesels.com/forum/showthread.php?t=50878)

bcdeutsch731 09-02-2013 05:23 AM

I run Fingers cast pistons. I have 82 1/4mile runs on the motor. 38 of them are in the 9's and 14 of the 9sec passes were 9.4 witch is the fastest I have been. I have been through 3 Allison transmissions, 2 input shafts and 1 output shaft on the Ford transmission. The 3 times my shafts broke my logs show the motor reving to 5800 rpm. At Schieds the converter was not locking so all 7 runs I made the rpm never dropped below 4100 with highest being 4650.
I have about 5000 miles on the street. The tune I drive on the street with dynoed around 700rwhp.
My race tune dynoed over 1100rwhp and at the track I see 84psi of boost and 125psi of drive pressure. I still have the stock Kodiak manifolds and up pipes, so I think I could get rid of some of that drive pressure with some better flowing manifolds and up pipes. I think I'm going to pull the motor apart this winter and look everything over.

dmax711 09-02-2013 05:32 AM

Damn is that impressive.!

Mikey 09-02-2013 06:53 AM

Quote:

Originally Posted by bcdeutsch731 (Post 741130)
I run Fingers cast pistons. I have 82 1/4mile runs on the motor. 38 of them are in the 9's and 14 of the 9sec passes were 9.4 witch is the fastest I have been. I have been through 3 Allison transmissions, 2 input shafts and 1 output shaft on the Ford transmission. The 3 times my shafts broke my logs show the motor reving to 5800 rpm. At Schieds the converter was not locking so all 7 runs I made the rpm never dropped below 4100 with highest being 4650.
I have about 5000 miles on the street. The tune I drive on the street with dynoed around 700rwhp.
My race tune dynoed over 1100rwhp and at the track I see 84psi of boost and 125psi of drive pressure. I still have the stock Kodiak manifolds and up pipes, so I think I could get rid of some of that drive pressure with some better flowing manifolds and up pipes. I think I'm going to pull the motor apart this winter and look everything over.

That is awesome!
What is your weight?

bcdeutsch731 09-02-2013 09:02 AM

Quote:

Originally Posted by mikey (Post 741139)
that is awesome!
What is your weight?

4650

Mikey 09-02-2013 03:09 PM

Quote:

Originally Posted by bcdeutsch731 (Post 741154)
4650

Nice Stuff!
I hope to have a classic to stick my extra LBZ in too:thumb:
Then I can get the Mileage I am looking for!

redws6rocket 09-02-2013 04:01 PM

I have a set in mine, got it running last weekend. Got a fuel leak to fix then its time to hook it to the sled.

Bigdirtylbz07 09-13-2013 04:22 AM

Waiting on the machine shop as well. Running your .020 overs at 15.5:1 a Hamilton 192-200 cam, Hamilton pushrods and springs, heads are getting a valve job, lb7 cryo treated crank, keyed cam and crank, 100% overs. Plus all the mods in my sig. Hoping to hit a good high hp single charger number. These pistons sure do look pretty tho!

smarquis 09-13-2013 09:26 AM

sub.

dirty_max 09-13-2013 09:44 AM

sub.

TheDieselRock 09-13-2013 09:45 AM

I'll let you know John as soon as I get mine running !! I'd love to come back up to your shop again sometime :D

TNRGreene 09-15-2013 07:42 PM

Kickin ass with mine. Thanks Jon

Fingers 09-16-2013 09:36 AM

Keep em coming guys.
:thumb:

MarkBroviak 09-16-2013 09:57 AM

My truck has roughly 7K miles on it now since the build last November and I run the RaceCast Ovals at 15.25:1 and I am currently at 1151hp and 2,000+ftlbs making 82psi boost and 100psi drive. I drive it on the street in the 750-950hp range mostly so the trany is somewhat happy. Trany has been my biggest issues because of the vast swing in power from daily driving to racing, it hates me for it!

I know Jon can tell you as I can can't keep track but I know we have bought the most of these pistons with great results! Have them in a bunch of 1,000+hp trucks without any failures to date. I think if anyone is going to fail a set of the cast pistons it should be me or Brett's truck as we are beating on them pretty damn hard! :thumb:

Kappa9012 09-16-2013 10:14 AM

what kind of blow by are you guys seeing, any cold start issues or white smoke, obviously the guys with lower compression ratios are going to have issues.

Cknight199 09-16-2013 10:31 AM

I just want one to break at 1300+ hp so I would feel safe at 1200 hp ;) very impressive what marks truck is doing though.


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