CR head on 24valve - Competition Diesel.Com

jktcummins · 01-14-2008, 06:23 PM

Whats the advantage of running a cr head on a 24valve. Is there enough flow gained out of a cr head to make it worth while to buy the lines, and what ever else is need to do the swap??????

InlineCummins24 · 01-14-2008, 06:50 PM

yea i wanted to know that to

BgBlDodge · 01-14-2008, 07:05 PM

I heard hamilton is doing this on jared's truck and has apparently done it a few times on different trucks. I can't figure out why though.

JaMan · 01-14-2008, 10:25 PM

Not yet I am still researching this, may not be that feasable.

farmboysdiesel · 01-15-2008, 07:37 AM

Much better design in the CR head.

BgBlDodge · 01-15-2008, 11:47 AM

Vague, but ok. What makes it a better designed head?

csutton7 · 01-15-2008, 12:06 PM

flows better than the 2nd gen heads is one reason---chris

BgBlDodge · 01-15-2008, 12:09 PM

Any numbers showing the differences? I know the valve seats aren't any less prone to dropping like they are on a 2nd gen.

farmboysdiesel · 01-15-2008, 02:31 PM

2nd gen is pinched on the intake.

Jetpilot · 01-15-2008, 03:36 PM

If you remove the valves from both heads and look at the bowls you can see a big difference..... The CR head looks about like what most call a stage 1 port job. I have never had a stock CR head flowed but from what I can see it will be quite a bit better than a stock 24v head.

Doug

sleepin-sport · 01-15-2008, 03:45 PM

Turbo's on stock CR do spool significantly sooner than 2nd gen 24v. I know fuel and other things can also contribue to this but the head does seem to flow better.
If your going to dig down this deep, wouldn't it also be better to run CR pistons.....? I guess if you come to think about it, you might as well swap the whole motor.

zstroken · 01-15-2008, 03:56 PM

Well what if you were to just put money into working over a 2nd gen 24V head?

Ph4tty · 01-15-2008, 07:57 PM

Here's some pics of a cr head modified for a 24v along with a tubular manifold:

http://www.dieseltruckresource.com/c...ct=15909&cat=8

Muddin_dude06 · 01-15-2008, 08:00 PM

Hey Ph4tty can you copy that picture and just post it over here? lol

*lmills* · 01-15-2008, 08:22 PM

here ya go

inline6power · 01-15-2008, 08:56 PM

i know whos head that was and i also no who just purchased that head.

Muddin_dude06 · 01-15-2008, 11:05 PM

Thats pretty cool, it would deffinately be a super tight fit though.

JaMan · 01-16-2008, 05:00 PM

Can anyone think of a problem with sensors: are the map sensor volages the same on a 02' as say a 06' can you just get a adaptor harness or is the hole in the head for the map sensor to the rear like a VP truck?

Jared

jktcummins · 01-17-2008, 12:55 PM

In my eyes buy the time you buy a cr head and buy the lines then get all the sensor to fit. Your better off just spending the money on getting a 24 valve head ported.

I just dont see how you could gain enought out of a cr head on a 24 valve to actually gain enought hp to justify the cost of doing it.

inline6power · 01-17-2008, 05:13 PM

Quote:

Originally Posted by jktcummins

In my eyes buy the time you buy a cr head and buy the lines then get all the sensor to fit. Your better off just spending the money on getting a 24 valve head ported.

I just dont see how you could gain enought out of a cr head on a 24 valve to actually gain enought hp to justify the cost of doing it.

well when you are after highest possible numbers out of an VP every little bit helps. its a fact that the CR head is a much better design. the bowls are way better in the CR.

01-14-2008, 06:23 PM	#1
jktcummins Name: jktcummins Title: 24v GOD!!!! HAHAHA Status: Not Here Join Date: Apr 2007 Location: Texas Member`s Gallery Posts: 2,450	CR head on 24valve Whats the advantage of running a cr head on a 24valve. Is there enough flow gained out of a cr head to make it worth while to buy the lines, and what ever else is need to do the swap?????? __________________ GOLDDIGGER02, rotory head, dual VP44, dual feed JD Inj. .290 lines/tubes, 1" fuel lines, 1000 gpm fuel pump, ????.??HP ????.??TQ

01-14-2008, 06:50 PM	#2
InlineCummins24 Name: InlineCummins24 Title: git it ragggg Status: Not Here Join Date: Dec 2007 Location: north east,P.A. Member`s Gallery Posts: 96	yea i wanted to know that to __________________ 00 2500 24v 5in dynomax turbo back exhaust, silencer ring removed,auto,3.55 SOLD looking for a 12v

01-14-2008, 07:05 PM	#3
BgBlDodge Name: BgBlDodge Title: Hates hippies Status: Not Here Join Date: May 2007 Location: Buda, Tx Member`s Gallery Posts: 16,647	I heard hamilton is doing this on jared's truck and has apparently done it a few times on different trucks. I can't figure out why though. __________________ 2003 Nissan 350z Touring 6mt 2000 4runner Limited Tyler Williams We have become educated beyond our intelligence. -Jerry Clower

01-15-2008, 07:37 AM	#5
farmboysdiesel Name: farmboysdiesel Title: I'll Take Two!! Status: Not Here Join Date: Jul 2006 Member`s Gallery Posts: 1,124	Much better design in the CR head. __________________ 2002 Dodge 3500 Tow Rig 1999 Dodge 2500 Drag Truck 2001 Dodge 2500 Pulling Truck www.farmboysdiesel.com

01-15-2008, 11:47 AM	#6
BgBlDodge Name: BgBlDodge Title: Hates hippies Status: Not Here Join Date: May 2007 Location: Buda, Tx Member`s Gallery Posts: 16,647	Vague, but ok. What makes it a better designed head? __________________ 2003 Nissan 350z Touring 6mt 2000 4runner Limited Tyler Williams We have become educated beyond our intelligence. -Jerry Clower

01-14-2008, 10:25 PM	#4
JaMan Name: JaMan Title: Local Hero Status: Not Here Join Date: Apr 2006 Location: McDade, Tx. Member`s Gallery Posts: 746	Not yet I am still researching this, may not be that feasable.

01-15-2008, 12:06 PM	#7
csutton7 Name: csutton7 Title: Too Much Time Status: Not Here Join Date: Apr 2007 Location: Omaha, NE Member`s Gallery Posts: 694	flows better than the 2nd gen heads is one reason---chris

01-15-2008, 12:09 PM	#8
BgBlDodge Name: BgBlDodge Title: Hates hippies Status: Not Here Join Date: May 2007 Location: Buda, Tx Member`s Gallery Posts: 16,647	Any numbers showing the differences? I know the valve seats aren't any less prone to dropping like they are on a 2nd gen. __________________ 2003 Nissan 350z Touring 6mt 2000 4runner Limited Tyler Williams We have become educated beyond our intelligence. -Jerry Clower

01-15-2008, 02:31 PM	#9
farmboysdiesel Name: farmboysdiesel Title: I'll Take Two!! Status: Not Here Join Date: Jul 2006 Member`s Gallery Posts: 1,124	2nd gen is pinched on the intake. __________________ 2002 Dodge 3500 Tow Rig 1999 Dodge 2500 Drag Truck 2001 Dodge 2500 Pulling Truck www.farmboysdiesel.com

01-15-2008, 03:36 PM	#10
Jetpilot Name: Jetpilot Title: Got Fuel Status: Not Here Join Date: May 2006 Location: Hershey, PA Member`s Gallery Posts: 770	If you remove the valves from both heads and look at the bowls you can see a big difference..... The CR head looks about like what most call a stage 1 port job. I have never had a stock CR head flowed but from what I can see it will be quite a bit better than a stock 24v head. Doug __________________ 2007 Mega-Cab 5.9L, With a few extra parts.....

01-15-2008, 03:45 PM	#11
sleepin-sport Name: sleepin-sport Title: Too Much Time Status: Not Here Join Date: Oct 2007 Member`s Gallery Posts: 513	Turbo's on stock CR do spool significantly sooner than 2nd gen 24v. I know fuel and other things can also contribue to this but the head does seem to flow better. If your going to dig down this deep, wouldn't it also be better to run CR pistons.....? I guess if you come to think about it, you might as well swap the whole motor.

01-15-2008, 03:56 PM	#12
zstroken Name: zstroken Title: For $$$ your name here Status: Not Here Join Date: Sep 2006 Location: Western Michigan(by the lake) Member`s Gallery Posts: 23,151	Well what if you were to just put money into working over a 2nd gen 24V head?

01-15-2008, 07:57 PM	#13
Ph4tty Name: Ph4tty Title: I'm nobody Status: Not Here Join Date: Jun 2007 Location: Va Member`s Gallery Posts: 1,090	Here's some pics of a cr head modified for a 24v along with a tubular manifold: http://www.dieseltruckresource.com/c...ct=15909&cat=8 __________________ David 02 Dodge dually- mach 4's, 62/71/14, smarty, tst comp, F1 cam/springs and lift pump, South Bend 3250 diaphragm dual disk 12cb 542/1040 uncorrected 1/12/08

01-15-2008, 08:00 PM	#14
Muddin_dude06 Name: Muddin_dude06 Title: ... Status: Not Here Join Date: Sep 2007 Location: Chandler OK Member`s Gallery Posts: 2,541	Hey Ph4tty can you copy that picture and just post it over here? lol __________________ '96 2500 4x4 5sp. 3” Full Long arm lift w/35's ValAir DD Clutch w/ Input DFI 5x.012’s, O-ringed, 625’s Hamilton 178/208, pushrods, PDD street springs, S362sxe/.7WG ‘12 LML crew cab swb 4x4 RC 3.5” lift with 33’s Anarchy tune 5” exhaust w/ Jones 5050XL

01-15-2008, 08:56 PM	#16
inline6power Name: inline6power Title: more hp than you Status: Not Here Join Date: Apr 2007 Location: fresno,ca Member`s Gallery Posts: 3,485	i know whos head that was and i also no who just purchased that head. __________________ 1998 reg cab 4x4 play truck 59 blown alky 565 truck Blown small block jeep on alky Blown 588 mid engine rail on alky 1966 el Camino 572 NADM member # 042 HUGE thanks to Reb Brown and Eric Brown for all the help along the way.

01-15-2008, 11:05 PM	#17
Muddin_dude06 Name: Muddin_dude06 Title: ... Status: Not Here Join Date: Sep 2007 Location: Chandler OK Member`s Gallery Posts: 2,541	Thats pretty cool, it would deffinately be a super tight fit though. __________________ '96 2500 4x4 5sp. 3” Full Long arm lift w/35's ValAir DD Clutch w/ Input DFI 5x.012’s, O-ringed, 625’s Hamilton 178/208, pushrods, PDD street springs, S362sxe/.7WG ‘12 LML crew cab swb 4x4 RC 3.5” lift with 33’s Anarchy tune 5” exhaust w/ Jones 5050XL

01-16-2008, 05:00 PM	#18
JaMan Name: JaMan Title: Local Hero Status: Not Here Join Date: Apr 2006 Location: McDade, Tx. Member`s Gallery Posts: 746	Can anyone think of a problem with sensors: are the map sensor volages the same on a 02' as say a 06' can you just get a adaptor harness or is the hole in the head for the map sensor to the rear like a VP truck? Jared

01-17-2008, 12:55 PM	#19
jktcummins Name: jktcummins Title: 24v GOD!!!! HAHAHA Status: Not Here Join Date: Apr 2007 Location: Texas Member`s Gallery Posts: 2,450	In my eyes buy the time you buy a cr head and buy the lines then get all the sensor to fit. Your better off just spending the money on getting a 24 valve head ported. I just dont see how you could gain enought out of a cr head on a 24 valve to actually gain enought hp to justify the cost of doing it. __________________ GOLDDIGGER02, rotory head, dual VP44, dual feed JD Inj. .290 lines/tubes, 1" fuel lines, 1000 gpm fuel pump, ????.??HP ????.??TQ