12v or 24v

cfl18 · 11-15-2009, 10:10 AM

Looking to build a drag truck want to know what everyone else would build 12v or 24v or somthing newer

Last edited by cfl18 : 11-15-2009 at 11:08 AM.

cbtoyz · 11-15-2009, 01:57 PM

I bought a 2wd 12 valve to build a race truck out of. But they both have strengths and down falls. For fueling, you can't beat the mechanical injection of a 12 valve. But you have to spend some money on head work to make it flow well. A 24 valve head flows pretty good right out of the box. I say p-pump a 24 valve!

__________________
Colin-'06 QC, SB, 4x4- 853hp/1467 & 11.30@122mph. Thanks, Brad and everybody at Ponci's Diesel Center, Dave Goerend and everyone who helped along the way!

**partyshortbusdriver** · 11-15-2009, 02:04 PM

if you p pump a 24v, you have more chances of dropping a valve seat when your pushing higher rpm

__________________
97 Fiat 3500 - Under Construction
Mark My Words. There will soon be change in our diesel world.

cbtoyz · 11-17-2009, 01:01 PM

You can have that issue addressed with pressing in over sized seats, and peening them in. You can also find a head that has cast seats like a 12 valve. Also I don't feel it's rpm that makes them drop, it's high EGT's that do it.

__________________
Colin-'06 QC, SB, 4x4- 853hp/1467 & 11.30@122mph. Thanks, Brad and everybody at Ponci's Diesel Center, Dave Goerend and everyone who helped along the way!

11-15-2009, 10:10 AM	#1 (permalink)
cfl18 Newbie Join Date: Nov 2008 Location: New York Posts: 7 Thanks: 0 Thanked 0 Times in 0 Posts cfl18's Truck Pics	12v or 24v For Drag Truck Looking to build a drag truck want to know what everyone else would build 12v or 24v or somthing newer Last edited by cfl18 : 11-15-2009 at 11:08 AM.

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11-15-2009, 01:57 PM	#2 (permalink)
cbtoyz Cummins Fanatic Join Date: Aug 2007 Location: fortuna, ca. Posts: 191 Thanks: 0 Thanked 3 Times in 3 Posts cbtoyz's Truck Pics	I bought a 2wd 12 valve to build a race truck out of. But they both have strengths and down falls. For fueling, you can't beat the mechanical injection of a 12 valve. But you have to spend some money on head work to make it flow well. A 24 valve head flows pretty good right out of the box. I say p-pump a 24 valve! __________________ Colin-'06 QC, SB, 4x4- 853hp/1467 & 11.30@122mph. Thanks, Brad and everybody at Ponci's Diesel Center, Dave Goerend and everyone who helped along the way!

11-15-2009, 02:04 PM	#3 (permalink)
partyshortbusdriver Wisconsin Chapter President Join Date: Jan 2008 Location: Mayville/Menomonie, WI Posts: 1,520 Thanks: 6 Thanked 61 Times in 56 Posts partyshortbusdriver's Truck Pics	if you p pump a 24v, you have more chances of dropping a valve seat when your pushing higher rpm __________________ 97 Fiat 3500 - Under Construction Mark My Words. There will soon be change in our diesel world.

11-17-2009, 01:01 PM	#4 (permalink)
cbtoyz Cummins Fanatic Join Date: Aug 2007 Location: fortuna, ca. Posts: 191 Thanks: 0 Thanked 3 Times in 3 Posts cbtoyz's Truck Pics	You can have that issue addressed with pressing in over sized seats, and peening them in. You can also find a head that has cast seats like a 12 valve. Also I don't feel it's rpm that makes them drop, it's high EGT's that do it. __________________ Colin-'06 QC, SB, 4x4- 853hp/1467 & 11.30@122mph. Thanks, Brad and everybody at Ponci's Diesel Center, Dave Goerend and everyone who helped along the way!