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Old 10-31-2009, 10:58 AM #3091  
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Chad, this build is becoming a legend LOL. Great work as always and patiently waiting to see this beast start breathing
This could be good or bad. Becoming a legend and the motor isn't even in the car. Will she live up to the hype? Time will tell.
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Old 10-31-2009, 11:03 AM #3092  
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Yesterday I was informed by Performance Developments that they had received the pistons and they were being sent out for the top fuel dome coatings and skirt coatings. We should have them back in two weeks.

In the mean time the rods are due soon. Neil still says the motor will be assembled by the end of November.
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Old 11-09-2009, 08:41 PM #3093  
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I have some very exciting news. Actually two bits. Our software people have come up with a way that when we make a change to the ECU we can discover what response our change has to all other ECU and PSM functions and to identify the specific function in the codes. This has some major benefits.

Secondly, we have come up with knock listeners or sensors that will detect knock. We will now come up with warnings and a mechanism to shut the motor down prior to any damage taking place. No more bent rods, per ignition or detonation.

Last edited by cjv; 11-09-2009 at 09:19 PM.
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Old 11-09-2009, 09:05 PM #3094  
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Originally Posted by cjv View Post
Yesterday I was informed by Performance Developments that they had received the pistons and they were being sent out for the top fuel dome coatings and skirt coatings. We should have them back in two weeks.

In the mean time the rods are due soon. Neil still says the motor will be assembled by the end of November.
Ceramic coating on the top Moly style coat on the sides and a diamond or oil hold coating on the wrist pin?
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Old 11-09-2009, 09:18 PM #3095  
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Ceramic coating on the top Moly style coat on the sides and a diamond or oil hold coating on the wrist pin?
The domes are ceramic coated for nitrous/top fuel duty. The skirts are coated with an anti friction coating. The wrist pins are coated with a compound referred to as "black carbon." The lands are anodized to prevent fusion of the rings to the pistons.

Last edited by cjv; 11-10-2009 at 08:15 AM.
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Old 11-09-2009, 10:34 PM #3096  
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nice, ill have to read the whole thread tomarrow.
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Old 11-10-2009, 12:20 PM #3097  
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Originally Posted by cjv View Post

Secondly, we have come up with knock listeners or sensors that will detect knock. We will now come up with warnings and a mechanism to shut the motor down prior to any damage taking place. No more bent rods, per ignition or detonation.
Are you not tuning with some sort of standalone? Regarding knock sensors etc, most/all good standalones usually have this..
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Old 11-10-2009, 09:54 PM #3098  
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Originally Posted by KhanNSX View Post
Are you not tuning with some sort of standalone? Regarding knock sensors etc, most/all good standalones usually have this..
Khan,

We are utilizing the Porsche ECU. Will be able to explain more in about a month or so.
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Old 11-11-2009, 08:11 PM #3099  
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hey CJV.. Dan told me you called Use my cell.. it's been crazy here with the 3.9 stuff
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Old 11-14-2009, 03:15 PM #3100  
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Here are some pics of the pistons before they were sent out for the coatings. I was asked not to disclose the domes at this time. If you look at the upper right corner of one of the pics there is a sneak peak.
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Old 11-14-2009, 03:16 PM #3101  
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Here are some pics of the pistons before they were sent out for the coatings. I was asked not to disclose the domes at this time. If you look at the upper right corner of the last pic you will find a sneak peak of the dome. These buckets weigh in at 352 grams apiece.


The wrist pins are not centered on the piston. They are off center so as to establish a true center bore alignment.

Black Carbon wrist pins. With the 105.4 mm bore the GT3 RSR size valves easily fit within the confines of the pistons. The oil ring is down in the wrist pin area.

Last edited by cjv; 11-14-2009 at 11:35 PM.
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Old 11-15-2009, 10:30 AM #3102  
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what brand of pistons did you go with CP? Ross? look like a pretty custom piston due to many things.

what Compression ratio is that?

since you stated weight how much do the stockers weigh?
do you have one you can line up against these bad arse Forged works of art?


anyways looks killer dude pics like that are awesome to show off! Car Porn
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Old 11-15-2009, 05:47 PM #3103  
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what brand of pistons did you go with CP? Ross? look like a pretty custom piston due to many things.

what Compression ratio is that?

since you stated weight how much do the stockers weigh?
do you have one you can line up against these bad arse Forged works of art?


anyways looks killer dude pics like that are awesome to show off! Car Porn
CP made the pistons to our specs.

The compression ratio is 9.2-1

Stock weigh 560 grams approx. Note: The stock pistons have a diameter of 100 mm while our diameter is 105.4 mm. Our pistons are larger and weigh less.

I no longer have a pic of a stock piston.

Last edited by cjv; 11-16-2009 at 09:14 AM.
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Old 11-15-2009, 05:57 PM #3104  
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CP is a class act they make some nice product.
Looks great man that ratio should Work great

you might be surprised at how it revs with the light pistons in my atv drag bikes it's really noticable the 50 gram difference ona piston makes on how it reacts to throttle.

Is this motor being balanced with the flywheel and crank pully installed ?

Doing porting on the heads or any extrude honing ?

Love these builds get me all riled up wanting to tear a motor apart n upgrade it ;-)
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Old 11-15-2009, 06:26 PM #3105  
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Originally Posted by OS Inspector View Post
CP is a class act they make some nice product.
Looks great man that ratio should Work great

you might be surprised at how it revs with the light pistons in my atv drag bikes it's really noticable the 50 gram difference ona piston makes on how it reacts to throttle.

Is this motor being balanced with the flywheel and crank pully installed ?

Doing porting on the heads or any extrude honing ?

Love these builds get me all riled up wanting to tear a motor apart n upgrade it ;-)
I am not sure how the motor was balanced.

The ports are plenty big. The heads were flow tested and all ports were matched.






Last edited by cjv; 11-17-2009 at 11:24 PM.
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