Anyone running Hamilton Cams 6.7 Steel Piston? - Competition Diesel.Com

TwinTurboTim · 11-28-2020, 08:18 PM

Just wondering if anyone is running this? Seems a longer rod would be great and a lighter piston even better. I also know steel expands less then aluminum at same temp so maybe run a tighter wall clearance. Anyone have any experience with these on the street around 1300hp.

YoungDiesel27 · 11-28-2020, 08:40 PM

I’ve got them in two engines. One is in a puller so can’t have any street use input there. The other engine I have them in we don’t have a ton of miles on, maybe 1000, but we competed in the King of the Streets challenge with it at a 1400hp level for most of the event and turned it up a little to make 1687Hp on the dyno. We plan to take them well last this next year. We had these set at 0.004” PTW

jfreemanak · 11-29-2020, 10:25 AM

Is there a reason why the pistons are no longer on Hamiltons website?

hoh91 · 11-29-2020, 01:01 PM

my guess would be bc of covid. i just waited 2 month for a fluid damper to show up, a month for a oil cooler

TwinTurboTim · 11-29-2020, 01:33 PM

Or possibly they just don't update the website regularly.

jfreemanak · 11-29-2020, 03:43 PM

They use to be on the site. The ceramic pistons have a link that says "Out of Stock". There isn't even a link to the steel pistons anymore.

YoungDiesel27 · 11-29-2020, 07:58 PM

There was a supply issue for a bit. They should be back in supply soon.

*Texashighways* · 12-02-2020, 09:01 AM

Hey guys, We have plenty in stock but we did one last improvement on skirt profile. The ones on the shelf work fine but the new skirt profile and .003" PTW just works so perfectly that I will probably just recycle the ones on the shelf. They work amazing and we have done I think 5 hard dyno runs back to back and then a 5500rpm hold test. It really is crazy how much they take without melting. The problem is actually rings. The piston can get so hot without failure that the rings have been annealing and losing tension... We just found the solution to that as well. With the tighter piston to bore, the correct rings from total seal and a good hone, they work amazing. Yes Covid has slowed our final order. I apologize for any delays.

TwinTurboTim · 12-02-2020, 12:07 PM

So you do have them? When I emailed it said you guys didn't?

*Texashighways* · 12-02-2020, 08:05 PM

We do have them and I instructed the guys to not sell until the final revision comes in. As I want you guys to have perfection. I was told they would have been in long ago then covid........ Once again, I apologize for any delays. The new ones are pretty amazing. I'll pressure the manufacturer a bit and let you know as soon as they are available.

*Snedge* · 12-03-2020, 06:24 AM

Quote:

Originally Posted by Texashighways

I'll pressure the manufacturer a bit

I know how well that works. lol Good luck Zack

TwinTurboTim · 12-03-2020, 08:56 AM

So if I blew my motor up now and need a set can I get them?

T-MAN · 12-03-2020, 03:14 PM

Quote:

Originally Posted by TwinTurboTim

So if I blew my motor up now and need a set can I get them?

Yes but he cant sell them to you lol

TwinTurboTim · 12-03-2020, 03:52 PM

We he can give them to me if he wants. I will buy a head and cam if it makes it work. I just want to get my truck going quickly.

T-MAN · 12-03-2020, 04:02 PM

If he’s turning current stock into ashtrays you may want to wait. He’s a straight shooter if he’s fixing a skirt issue with the new design he probably doesn’t want the old inventory to hit the street...that’s a good thing....

TwinTurboTim · 12-04-2020, 08:09 AM

I just want to rebuild my motor within a month since my truck is down. I dont know if I can wait an unspecified amount of time.

Poulina · 12-04-2020, 08:59 AM

any plans on making a 4.02 bore steel piston zach?

*Texashighways* · 12-05-2020, 03:43 AM

Quote:

Originally Posted by Snedge

I know how well that works. lol Good luck Zack

hahaha, this is not your first rodeo......

On the 4.020........bore size dictates valve size, valve size dictates flow potential. flow potential dictates power potential... so no.

Mahle already has an option for this.....

*Texashighways* · 12-05-2020, 03:45 AM

twin turbo tim, call my cell 1-512-627-3896 and I will help you how I can... What bore size are you working with? to the .0005 please

11-28-2020, 08:18 PM	#1
TwinTurboTim Name: TwinTurboTim Title: Green Behind the Ears Status: Not Here Join Date: Nov 2019 Member`s Gallery Posts: 48	Anyone running Hamilton Cams 6.7 Steel Piston? Just wondering if anyone is running this? Seems a longer rod would be great and a lighter piston even better. I also know steel expands less then aluminum at same temp so maybe run a tighter wall clearance. Anyone have any experience with these on the street around 1300hp.

11-28-2020, 08:40 PM	#2
YoungDiesel27 Name: YoungDiesel27 Title: Never Enough Time Status: Not Here Join Date: Jul 2010 Location: West Virginia Member`s Gallery Posts: 825	I’ve got them in two engines. One is in a puller so can’t have any street use input there. The other engine I have them in we don’t have a ton of miles on, maybe 1000, but we competed in the King of the Streets challenge with it at a 1400hp level for most of the event and turned it up a little to make 1687Hp on the dyno. We plan to take them well last this next year. We had these set at 0.004” PTW __________________ EFI Live, HP Tuners, Smarty custom tuning

11-29-2020, 10:25 AM	#3
jfreemanak Name: jfreemanak Title: Rookie Status: Not Here Join Date: Sep 2010 Member`s Gallery Posts: 14	Is there a reason why the pistons are no longer on Hamiltons website? __________________ 2019 2500 CCSB Bighorn Air Suspension SOLD 2010 CCSB 68RFE - HP Tuner self tuned - BD Diesel Protect68 Kit - Transgo 45RFE-HD2 Shift Kit - 4" TBE Exhaust w/ 17" FTE Resonator - Crower 110lb valve springs - Manton Series 3 Push Rods 7/16x.12 - 12.9 head bolts

11-29-2020, 03:43 PM	#6
jfreemanak Name: jfreemanak Title: Rookie Status: Not Here Join Date: Sep 2010 Member`s Gallery Posts: 14	They use to be on the site. The ceramic pistons have a link that says "Out of Stock". There isn't even a link to the steel pistons anymore. __________________ 2019 2500 CCSB Bighorn Air Suspension SOLD 2010 CCSB 68RFE - HP Tuner self tuned - BD Diesel Protect68 Kit - Transgo 45RFE-HD2 Shift Kit - 4" TBE Exhaust w/ 17" FTE Resonator - Crower 110lb valve springs - Manton Series 3 Push Rods 7/16x.12 - 12.9 head bolts

11-29-2020, 07:58 PM	#7
YoungDiesel27 Name: YoungDiesel27 Title: Never Enough Time Status: Not Here Join Date: Jul 2010 Location: West Virginia Member`s Gallery Posts: 825	There was a supply issue for a bit. They should be back in supply soon. __________________ EFI Live, HP Tuners, Smarty custom tuning

11-29-2020, 01:01 PM	#4
hoh91 Name: hoh91 Title: Green Behind the Ears Status: Not Here Join Date: Nov 2015 Member`s Gallery Posts: 72	my guess would be bc of covid. i just waited 2 month for a fluid damper to show up, a month for a oil cooler

11-29-2020, 01:33 PM	#5
TwinTurboTim Name: TwinTurboTim Title: Green Behind the Ears Status: Not Here Join Date: Nov 2019 Member`s Gallery Posts: 48	Or possibly they just don't update the website regularly.

12-02-2020, 09:01 AM	#8
Texashighways Name: Texashighways Title: Comp Diesel Sponsor Status: Not Here Join Date: Apr 2013 Member`s Gallery Posts: 401	Hey guys, We have plenty in stock but we did one last improvement on skirt profile. The ones on the shelf work fine but the new skirt profile and .003" PTW just works so perfectly that I will probably just recycle the ones on the shelf. They work amazing and we have done I think 5 hard dyno runs back to back and then a 5500rpm hold test. It really is crazy how much they take without melting. The problem is actually rings. The piston can get so hot without failure that the rings have been annealing and losing tension... We just found the solution to that as well. With the tighter piston to bore, the correct rings from total seal and a good hone, they work amazing. Yes Covid has slowed our final order. I apologize for any delays. __________________ Hamilton Cams 1.512.355.9101

12-02-2020, 12:07 PM	#9
TwinTurboTim Name: TwinTurboTim Title: Green Behind the Ears Status: Not Here Join Date: Nov 2019 Member`s Gallery Posts: 48	So you do have them? When I emailed it said you guys didn't?

12-02-2020, 08:05 PM	#10
Texashighways Name: Texashighways Title: Comp Diesel Sponsor Status: Not Here Join Date: Apr 2013 Member`s Gallery Posts: 401	We do have them and I instructed the guys to not sell until the final revision comes in. As I want you guys to have perfection. I was told they would have been in long ago then covid........ Once again, I apologize for any delays. The new ones are pretty amazing. I'll pressure the manufacturer a bit and let you know as soon as they are available. __________________ Hamilton Cams 1.512.355.9101

12-03-2020, 08:56 AM	#12
TwinTurboTim Name: TwinTurboTim Title: Green Behind the Ears Status: Not Here Join Date: Nov 2019 Member`s Gallery Posts: 48	So if I blew my motor up now and need a set can I get them?

12-03-2020, 03:52 PM	#14
TwinTurboTim Name: TwinTurboTim Title: Green Behind the Ears Status: Not Here Join Date: Nov 2019 Member`s Gallery Posts: 48	We he can give them to me if he wants. I will buy a head and cam if it makes it work. I just want to get my truck going quickly.

12-03-2020, 04:02 PM	#15
T-MAN Name: T-MAN Title: misunderstood Status: Not Here Join Date: Sep 2008 Member`s Gallery Posts: 352	If he’s turning current stock into ashtrays you may want to wait. He’s a straight shooter if he’s fixing a skirt issue with the new design he probably doesn’t want the old inventory to hit the street...that’s a good thing.... __________________ 2001.5 ppump allison 11.399@ 117.90 6850# 1997 rcsb 12v 6.7 9.38 @ 146.54

12-04-2020, 08:09 AM	#16
TwinTurboTim Name: TwinTurboTim Title: Green Behind the Ears Status: Not Here Join Date: Nov 2019 Member`s Gallery Posts: 48	I just want to rebuild my motor within a month since my truck is down. I dont know if I can wait an unspecified amount of time.

12-04-2020, 08:59 AM	#17
Poulina Name: Poulina Title: Too Much Time Status: Not Here Join Date: Dec 2015 Location: Norcal Member`s Gallery Posts: 795	any plans on making a 4.02 bore steel piston zach? __________________ 2008 QCLB 6.8 48re Suncoast PCS, DDP supermentals, forcedinductions 467/87, Hamilton 188/220, Carrillos, studded mains w/stock girdle

12-05-2020, 03:45 AM	#19
Texashighways Name: Texashighways Title: Comp Diesel Sponsor Status: Not Here Join Date: Apr 2013 Member`s Gallery Posts: 401	twin turbo tim, call my cell 1-512-627-3896 and I will help you how I can... What bore size are you working with? to the .0005 please __________________ Hamilton Cams 1.512.355.9101