Hammerhead 12 bolt installed, testing being done !!!!!! - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Driveshaftshop · 06-30-2012, 07:51 AM

6.29.2012:
The first of the Hammerhead 12 bolt diffs was installed and completed yesterday. Its been a longer road than most wanted but the end result is worth the wait. Thomas Hendrix (Street Slayer clutch guy) and his good friend Jolly took the time to put the diff in, supply all the need dimensions for both the axles and the driveshaft and provided us with all the info needed to get the job done. it was a success.

Here is Jeff and Skip Lee holding the the 1st Hammerhead 12 bolt after being machined and internals installed

This Hammerhead diff was set up with the 35 Spline Wavetrac (supplied by Moser engineering) a 3-1/2" Aluminum CV Driveshaft (we believe with the space provided we may be able to get a 4" aluminum shaft so critical speed will be higher) and of coarse the DSS 30 spline axles (same axles that Mark Carlyle's Vette ran a 7.22 @ 209mph this past week) so no need for over sized heavy parts.

Here is the Hendrix car in my garage on ramps checking last night to make sure everything was correct, looked great

We went out for a ride on the back country roads of NC near my house and it was a blast, testing the car but not being able to really hit is hard because the rear was still being broken in. Did a few blasts up over 100 with out a single objectionable sound, in fact the car felt stock (well as stock as a 700Hp car can feel)

ok, on to the pictures

Sorry for all the burnt rubber under the car in all the pictures, he did take the 9" out to test it. He is not easy on the car as you can tell.

Over the next few days we will have some better shots and more importantly the results from taking the 9" kit out and seeing if there is any truth to the 12 bolt having less Parasitic loss and gaining Hp with just a diff change.

Being the stub outputs are higher than the 9" (even though our 9" kit is as high as we can get it) the angle on the axles is allot less even on his very low car. (again sorry for all that burnt rubber)

The Driveshaft was only .250 shorter than the Stock shafts we make with the steel flange so we will be making a front plate for the trans .250 longer for you guys that either want to move up to the 12 bolt slowly by buying our axles and shaft 1st or for you lucky guys that have already purchased DSS products and are ready for the Hammerhead 12 bolt. it will be a nice and easy transition.

over the next little while we will be giving you all the Data collected we will have all the info you would want to know about this amazing piece, it will include HP gains when the Dyno testing is done, info on the axle angles (this will include all manufacturers angles) we will have info on clearance for the larger driveshafts in both aluminum and Carbon fiber along with interior DB differences from the 9" to the 12 bolt and more.......

now that we know what has to be done it will take a little to proceed with the final machining and assembly but its a reality and now for away for you guys that have been patiently waiting.

tadams72 · 06-30-2012, 09:30 AM

Awesome! It's on the list as soon as final package is available. Nice work. Looks like the wait will be worth it.

DandD · 06-30-2012, 09:56 AM

This is great guys, I'm one who isn't in a big rush unlike a lot of you guys. I do my major work on my car during our nice long winters here in Michigan, so I'll be looking to get one of these 12 bolts say around Feb or March, I already have the level 5 axles and 1pc aluminum driveshaft so this is just great news to me. Keep up the good work guys!!!

mikepage0007 · 06-30-2012, 10:16 AM

looks good, interested to see if tommy keeps the hammerhead or wants his 9 inch back...lol..

NC-V · 06-30-2012, 01:00 PM

Holy crap you could mold a new tire with all that rubber! No one can say he hasn't put that 9" to the test LOL

Do you know what day you guys are planning on Dynoing again? If I'm not working maybe I'll run down the road and watch him add to his collection of rubber.

And Frank, you certainly have a lot of bicycles!

Driveshaftshop · 06-30-2012, 01:25 PM

too bad all the cars were not in the garage, yea i love them bikes.

mikepage0007 · 06-30-2012, 01:36 PM

i think tommy just sprays bedliner stuff under his car to give impression it can spin the tires..lol

Hendrix-Engineering · 06-30-2012, 04:59 PM

Quote:

Originally Posted by mikepage0007

i think tommy just sprays bedliner stuff under his car to give impression it can spin the tires..lol

shhhhhh!

I do need to clean it

nitto85 · 06-30-2012, 07:49 PM

Great news confirming these kits can be pieced together. Makes it much easier for me and I'm sure many others to piece this together than buy all at once.

Awesome work guys.

HammerHeadHousings · 06-30-2012, 08:07 PM

So cool! We're really excited to see it in the car, and it has been great working with Frank on this project. And also thanks to Tom for testing with your car. First car with the 9" IRS, and first with the HammerHead!

Hendrix-Engineering · 06-30-2012, 08:24 PM

Quote:

Originally Posted by HammerHeadHousings

So cool! We're really excited to see it in the car, and it has been great working with Frank on this project. And also thanks to Tom for testing with your car. First car with the 9" IRS, and first with the HammerHead!

Thanks for the chance,just got back putting a few more miles on it,MAN! i cant wait to see the hp numbers on the dyno because it is alot more responsive and ive lost a little gear with the swap but it feels much quicker.oh and we love leading the way ,(if you aint first your last lol)

bthibodeaux · 06-30-2012, 09:02 PM

Quote:

Originally Posted by Hendrix-Engineering

Thanks for the chance,just got back putting a few more miles on it,MAN! i cant wait to see the hp numbers on the dyno because it is alot more responsive and ive lost a little gear with the swap but it feels much quicker.oh and we love leading the way ,(if you aint first your last lol)

Cool. On that note I will be retiring to the theater to watch Talladega Nights for the cagillienth time.

BTW, what gear is in it? Thanks.

Hendrix-Engineering · 06-30-2012, 09:16 PM

Quote:

Originally Posted by bthibodeaux

Cool. On that note I will be retiring to the theater to watch Talladega Nights for the cagillienth time.

BTW, what gear is in it? Thanks.

I had a 3.64 with the 9 inch and with the HammerHead i have a 3.55

bthibodeaux · 06-30-2012, 09:21 PM

Quote:

Originally Posted by Hendrix-Engineering

I had a 3.64 with the 9 inch and with the HammerHead i have a 3.55

Thanks man. Looking forward to the dyno numbers then. I am so glad to see this finally coming to market. I have been watching for a while now.
Shake and Bake Bitches!

06-30-2012, 07:51 AM	#1
Driveshaftshop Drives: own more cars than i can list Join Date: Nov 2010 Location: Charlotte NC Posts: 1,124	Hammerhead 12 bolt installed, testing being done !!!!!! 6.29.2012: The first of the Hammerhead 12 bolt diffs was installed and completed yesterday. Its been a longer road than most wanted but the end result is worth the wait. Thomas Hendrix (Street Slayer clutch guy) and his good friend Jolly took the time to put the diff in, supply all the need dimensions for both the axles and the driveshaft and provided us with all the info needed to get the job done. it was a success. Here is Jeff and Skip Lee holding the the 1st Hammerhead 12 bolt after being machined and internals installed This Hammerhead diff was set up with the 35 Spline Wavetrac (supplied by Moser engineering) a 3-1/2" Aluminum CV Driveshaft (we believe with the space provided we may be able to get a 4" aluminum shaft so critical speed will be higher) and of coarse the DSS 30 spline axles (same axles that Mark Carlyle's Vette ran a 7.22 @ 209mph this past week) so no need for over sized heavy parts. Here is the Hendrix car in my garage on ramps checking last night to make sure everything was correct, looked great We went out for a ride on the back country roads of NC near my house and it was a blast, testing the car but not being able to really hit is hard because the rear was still being broken in. Did a few blasts up over 100 with out a single objectionable sound, in fact the car felt stock (well as stock as a 700Hp car can feel) ok, on to the pictures Sorry for all the burnt rubber under the car in all the pictures, he did take the 9" out to test it. He is not easy on the car as you can tell. Over the next few days we will have some better shots and more importantly the results from taking the 9" kit out and seeing if there is any truth to the 12 bolt having less Parasitic loss and gaining Hp with just a diff change. Being the stub outputs are higher than the 9" (even though our 9" kit is as high as we can get it) the angle on the axles is allot less even on his very low car. (again sorry for all that burnt rubber) The Driveshaft was only .250 shorter than the Stock shafts we make with the steel flange so we will be making a front plate for the trans .250 longer for you guys that either want to move up to the 12 bolt slowly by buying our axles and shaft 1st or for you lucky guys that have already purchased DSS products and are ready for the Hammerhead 12 bolt. it will be a nice and easy transition. over the next little while we will be giving you all the Data collected we will have all the info you would want to know about this amazing piece, it will include HP gains when the Dyno testing is done, info on the axle angles (this will include all manufacturers angles) we will have info on clearance for the larger driveshafts in both aluminum and Carbon fiber along with interior DB differences from the 9" to the 12 bolt and more....... now that we know what has to be done it will take a little to proceed with the final machining and assembly but its a reality and now for away for you guys that have been patiently waiting.

06-30-2012, 09:30 AM	#2
tadams72 When is enough ever... Drives: 2006 Silverado 2500HD CC/SB LBZ Join Date: Apr 2011 Location: Residence: Chula Vista, CA Home: Billings, MT Posts: 996 View My Garage	Awesome! It's on the list as soon as final package is available. Nice work. Looks like the wait will be worth it. __________________ The Project: 2011 Camaro 2SS/RS (ERL 427 Superdeck NA Monster) "Just like farmer engineering. Find the weak link and fix it, then find the next one." Salt Cat Racing

06-30-2012, 09:56 AM	#3
DandD Drives: 2010 2SS and 2011 LS Join Date: Aug 2011 Location: Western burbs of the Motor City Posts: 628 View My Garage	This is great guys, I'm one who isn't in a big rush unlike a lot of you guys. I do my major work on my car during our nice long winters here in Michigan, so I'll be looking to get one of these 12 bolts say around Feb or March, I already have the level 5 axles and 1pc aluminum driveshaft so this is just great news to me. Keep up the good work guys!!! __________________ Around here we like baseball, hot dogs, apple pie, and Chevrolet

06-30-2012, 10:16 AM	#4
mikepage0007 Drives: 2010 camaro Join Date: Aug 2009 Location: port st lucie ,florida Posts: 4,273	looks good, interested to see if tommy keeps the hammerhead or wants his 9 inch back...lol.. __________________

06-30-2012, 01:36 PM	#7
mikepage0007 Drives: 2010 camaro Join Date: Aug 2009 Location: port st lucie ,florida Posts: 4,273	i think tommy just sprays bedliner stuff under his car to give impression it can spin the tires..lol __________________

06-30-2012, 01:00 PM	#5
NC-V Drives: cts-v Join Date: Dec 2011 Location: Mooresville, NC Posts: 506	Holy crap you could mold a new tire with all that rubber! No one can say he hasn't put that 9" to the test LOL Do you know what day you guys are planning on Dynoing again? If I'm not working maybe I'll run down the road and watch him add to his collection of rubber. And Frank, you certainly have a lot of bicycles!

06-30-2012, 01:25 PM	#6
Driveshaftshop Drives: own more cars than i can list Join Date: Nov 2010 Location: Charlotte NC Posts: 1,124	too bad all the cars were not in the garage, yea i love them bikes.

06-30-2012, 07:49 PM	#9
nitto85 Caffeine Injected Drives: 13 Ram - 05 Widebody 1050rwhp Vette Join Date: Sep 2010 Location: Woodstock, Ga Posts: 1,033	Great news confirming these kits can be pieced together. Makes it much easier for me and I'm sure many others to piece this together than buy all at once. Awesome work guys.

06-30-2012, 08:07 PM	#10
HammerHeadHousings Drives: 2010 Camaro Join Date: Jun 2012 Location: Muskegon, MI Posts: 6	So cool! We're really excited to see it in the car, and it has been great working with Frank on this project. And also thanks to Tom for testing with your car. First car with the 9" IRS, and first with the HammerHead!