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11-28-2010, 09:52 AM
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#121
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Name: Snedge
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Sep 2006
Location: Western Pa.
Member`s Gallery
Posts: 18,859
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Quote:
Originally Posted by lilredtruck
do they have the problem of the head lifting, stud stretching, if so how do they
solve that aspect?
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They keep lots of parts and rebuild after every pass.
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11-28-2010, 09:56 AM
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#122
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Name: TMONEYDIESEL
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Jan 2007
Member`s Gallery
Posts: 8,706
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And I'll add to Jeff's post with a little $$$$$$ holla if ya hear me!
__________________
MANNING MOTORSPORTS
Office +1 (512) 217-7644
YOUR SOURCE FOR:
Camshafts
Pushrods
Valve springs
Custom Turbos
Exhaust Manifolds
Carrillo Connecting rods
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11-28-2010, 10:07 AM
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#123
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Name: Snedge
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Sep 2006
Location: Western Pa.
Member`s Gallery
Posts: 18,859
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This is an interesting read/watch if you want an idea of what it takes to compete at the top fuel level. As always, money is the most important ingredient.
http://www.insideline.com/features/d...-dragster.html
Last edited by Snedge; 11-28-2010 at 10:13 AM.
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11-28-2010, 10:54 AM
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#124
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Name: gotta12v
Title: Too Much Time
Status: Not Here
Join Date: Dec 2006
Location: Fayette MO
Member`s Gallery
Posts: 435
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top fuel 1.375in rod journal
b cummins 1.717in rod journal
k cummins 4in rod journal
i think the solution to fuel car racing is to put a modified k crank in em lol
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11-28-2010, 12:17 PM
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#125
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Name: DIESEL_POWER
Title: NGM Diesel
Status: Not Here
Join Date: Jul 2006
Member`s Gallery
Posts: 5,178
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Quote:
Originally Posted by TMONEYDIESEL
And I'll add to Jeff's post with a little $$$$$$ holla if ya hear me!
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Yea really...if i had what they spend in one weekend of racing, i could live well all year.....at least most of it!
__________________
Proverbs 3:5-6 (KJV)
5 Trust in the Lord with all thine heart; and lean not unto thine own understanding. 6 In all thy ways acknowledge him, and he shall direct thy paths.
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12-01-2010, 02:20 PM
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#126
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Name: Timebomb
Title: Bootney Lee Fonsworth
Status: Not Here
Join Date: Apr 2007
Location: The Swap Meet
Member`s Gallery
Posts: 2,069
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Quote:
Originally Posted by COMP461
Listen goof ball, they don’t use gages, it take a ultra expensive piezo sensor. Listen bud, you know that we know the truth, so quite blowing smoke, when your evidently so far over your head. I have looked at cylinder pressure data logs on many types of engines, and your,,,, more than likely been closer then dreaming about that type of data logger .
Keep it up and I’ll dig a few out and print them on this thread.
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We use Piezo sensors for PCP and see between 3000-3300psi and that range covers 11,13,16L engines that are all over rated tests with HP from 450-700. Not much peack Cly pressure changes for the range of cubic inch and horsepower.
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12-01-2010, 02:42 PM
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#127
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Name: nwpadmax
Title: Turbo Geek
Status: Not Here
Join Date: Nov 2006
Location: Out in the shop
Member`s Gallery
Posts: 3,128
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Quote:
Originally Posted by Timebomb
We use Piezo sensors for PCP and see between 3000-3300psi and that range covers 11,13,16L engines that are all over rated tests with HP from 450-700. Not much peack Cly pressure changes for the range of cubic inch and horsepower.
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I assume you do this on a load cell chassis dyno?
__________________
"What I said does equate too what can happen....Alote."
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12-01-2010, 10:03 PM
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#128
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Name: TDX
Title: Green Behind the Ears
Status: Not Here
Join Date: Jun 2009
Member`s Gallery
Posts: 70
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Quote:
Originally Posted by gotta12v
top fuel 1.375in rod journal
b cummins 1.717in rod journal
k cummins 4in rod journal
i think the solution to fuel car racing is to put a modified k crank in em lol
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2.375 hemi
2.710 cummins
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12-01-2010, 10:56 PM
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#129
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Name: dieselduck
Title: Too Much Time
Status: Not Here
Join Date: Jul 2009
Member`s Gallery
Posts: 581
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Pics and an article on this new Indy aluminum 12v head in Diesel Power mag.
Sorry don't know how to post pics.
Quick specs;
price $7,995
300 cfm on intake out of the box
2.06 intake
machined for Jhon Deer injectors
12v for now, working on 24v head next
comes with removable stock style intake
Says it's 2000hp capable
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12-02-2010, 09:12 AM
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#130
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Name: Timebomb
Title: Bootney Lee Fonsworth
Status: Not Here
Join Date: Apr 2007
Location: The Swap Meet
Member`s Gallery
Posts: 2,069
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Quote:
Originally Posted by nwpadmax
I assume you do this on a load cell chassis dyno?
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Water and Electric engine dyno's
Quote:
Originally Posted by dieselduck
2.06 intake
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So If memory serves correct you would have to notch the top of the cly for the valves to clear, as a 2.02 will hit ???
Im sure this wouldnt be an issue for guys at this level anyway
__________________
95 12v 4x4 Ex Cab Auto
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12-02-2010, 10:13 AM
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#131
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Name: dieselduck
Title: Too Much Time
Status: Not Here
Join Date: Jul 2009
Member`s Gallery
Posts: 581
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Quote:
Originally Posted by Timebomb
Water and Electric engine dyno's
So If memory serves correct you would have to notch the top of the cly for the valves to clear, as a 2.02 will hit ???
Im sure this wouldnt be an issue for guys at this level anyway
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The article states; 2.06 intake and stock exhaust are limited in size by the bore diameter of the Cummins engine.
In the picture they are overlapping each other, I assume Indy moved some things around. No mention of notching the cylinder.
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12-02-2010, 10:25 AM
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#132
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Name: Joesixpack
Title: Pull'n it.
Status: Not Here
Join Date: Apr 2008
Member`s Gallery
Posts: 4,118
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Quote:
Originally Posted by DIESEL_POWER
http://www.precisionenginetech.com/t...ings-bearings/
Greg if you can read this tell me what it says AFTER you re-read all my prior post's.......
Right about when you get to this part. You'll feel even dumber...
"Cylinder pressures are incredibly high, as much as 12,000 to 13,000 PSI (when detonation takes place, cylinder pressure is in the 16,000 PSI range). To put that into perspective, a Pro Stock engine may generate around 4,000 PSI of cylinder pressure"
Greg, be Thankful for something! After all it is Thanksgiving day!
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Hate to crap up the thread more than it is, BUT I find it hard to believe they are hitting those pressures.....(Again absolutely no direct experience) but when I look at the studs sticking up from the block to hold down the head I don't see that kind of pressure.
I remember reading a while back, and I don't know who's team it was but they said it was a order more difficult keeping the head seal in Top alcohol from higher peaks than it was in their Top fuel motors, and he equated it to the long burn you get with Fuel.....and when you think about it, thats were the torque is coming from. They are cracking the exaust valve with some serious pressure still in the cylinder.
However.....you can simply calculate the BMEP for a top fuel engine and that works out to 1400-1600 PSI!!!! So obviously peaks are higher right....but DAMN, its frankly hard to imagine those pressures and in reality not much for studs holding it down.
The little bit of data I saw for cylinder pressure put them in the ~5000psi range as well but again that was some time ago.
On a side note.....know of a 5.9 head that was modified for a cylinder pressure sensor? The duramax guys have it too easy!
__________________
Basically stock if I would have built it at the factory.....
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12-02-2010, 03:18 PM
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#133
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Name: DIESEL_POWER
Title: NGM Diesel
Status: Not Here
Join Date: Jul 2006
Member`s Gallery
Posts: 5,178
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Quote:
Originally Posted by Joesixpack
Hate to crap up the thread more than it is, BUT I find it hard to believe they are hitting those pressures.....(Again absolutely no direct experience) but when I look at the studs sticking up from the block to hold down the head I don't see that kind of pressure.
I remember reading a while back, and I don't know who's team it was but they said it was a order more difficult keeping the head seal in Top alcohol from higher peaks than it was in their Top fuel motors, and he equated it to the long burn you get with Fuel.....and when you think about it, thats were the torque is coming from. They are cracking the exaust valve with some serious pressure still in the cylinder.
However.....you can simply calculate the BMEP for a top fuel engine and that works out to 1400-1600 PSI!!!! So obviously peaks are higher right....but DAMN, its frankly hard to imagine those pressures and in reality not much for studs holding it down.
The little bit of data I saw for cylinder pressure put them in the ~5000psi range as well but again that was some time ago.
On a side note.....know of a 5.9 head that was modified for a cylinder pressure sensor? The duramax guys have it too easy!
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Your right it is hard to imagine, untill you see it for yourself.
alcohol burns fast and short, nitro burns slow and long, like diesel.
Alky engines peak around 8-9k
__________________
Proverbs 3:5-6 (KJV)
5 Trust in the Lord with all thine heart; and lean not unto thine own understanding. 6 In all thy ways acknowledge him, and he shall direct thy paths.
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12-03-2010, 11:51 PM
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#134
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Name: 97rada
Title: Too Much Time
Status: Not Here
Join Date: Feb 2008
Member`s Gallery
Posts: 5,410
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i seen 2 of the 3 heads they are making today. D@mn is all i can say! it looked amazing
__________________
Austin
tow truck- 14-3500 with tuning
toy truck -94 rclb auto- 5.2x with a lot left. Shooting for 4s
Any intelligent fool can make things bigger and more complex...it takes a touch of genius- and alot of courage to move in the opposite direction.
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