went from 215's to DDP4's!
12-23-2006, 07:23 PM
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went from 215's to DDP4's!
when I swapped the twins for an sps62, I messed up the threads on one of my DDP4's, so I installed some 215's w/ thick washers... tons of idle haze, smokey, truck made 48psi, EGT's rarely saw 1200*. this was with the fuel rack resting on the stock front plug.
retorqued the studs up to 120lbs and installed the 4's today... anticipating a smoke show, I put ~1/8" pre-load on the AFC shaft and took the star wheel from full forward to contacting the spring. it'll bellow a black cloud if you romp it, but it's actually easier to control than it was before!
in 6th it's making 55psi w/ 50psi drive pressure, I didn't see the EGT's go over 1400*, and MY GOD does the turbo hit like a freight train now!
wish list: another 1000rpm and a 5sp
retorqued the studs up to 120lbs and installed the 4's today... anticipating a smoke show, I put ~1/8" pre-load on the AFC shaft and took the star wheel from full forward to contacting the spring. it'll bellow a black cloud if you romp it, but it's actually easier to control than it was before!
in 6th it's making 55psi w/ 50psi drive pressure, I didn't see the EGT's go over 1400*, and MY GOD does the turbo hit like a freight train now!
wish list: another 1000rpm and a 5sp
12-23-2006, 09:16 PM
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when I swapped the twins for an sps62, I messed up the threads on one of my DDP4's, so I installed some 215's w/ thick washers... tons of idle haze, smokey, truck made 48psi, EGT's rarely saw 1200*. this was with the fuel rack resting on the stock front plug.
retorqued the studs up to 120lbs and installed the 4's today... anticipating a smoke show, I put ~1/8" pre-load on the AFC shaft and took the star wheel from full forward to contacting the spring. it'll bellow a black cloud if you romp it, but it's actually easier to control than it was before!
in 6th it's making 55psi w/ 50psi drive pressure, I didn't see the EGT's go over 1400*, and MY GOD does the turbo hit like a freight train now!
wish list: another 1000rpm and a 5sp
retorqued the studs up to 120lbs and installed the 4's today... anticipating a smoke show, I put ~1/8" pre-load on the AFC shaft and took the star wheel from full forward to contacting the spring. it'll bellow a black cloud if you romp it, but it's actually easier to control than it was before!
in 6th it's making 55psi w/ 50psi drive pressure, I didn't see the EGT's go over 1400*, and MY GOD does the turbo hit like a freight train now!
wish list: another 1000rpm and a 5sp
Thanks for the post Forrest!
makes me wanna go pawn stuff to get the DDP 4's in, Im sure they are a nice kick over 370s as well, What DVs u runnin on them?
Rick
12-23-2006, 10:01 PM
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Thats the setup I was looking at.. I was looking for reviews on the SPS62, I really like that unit and if it reacts like you say, I will have to ask Santa for another Visa...LOL..
12-23-2006, 10:32 PM
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I think Jeff said he picked up like 60hp over the 370's w/ his twin setup... I'm just running the 181 DV's
I just had a little scare! after all that, I pulled in to get fuel and saw oil dripping under the truck!
started freaking out, and headed home... figured the worst I did was maybe blow the side cover seal. turns out I pinched the back valve cover gasket 
I just had a little scare! after all that, I pulled in to get fuel and saw oil dripping under the truck!
started freaking out, and headed home... figured the worst I did was maybe blow the side cover seal. turns out I pinched the back valve cover gasket
12-23-2006, 11:19 PM
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I think Jeff said he picked up like 60hp over the 370's w/ his twin setup... I'm just running the 181 DV's
I just had a little scare! after all that, I pulled in to get fuel and saw oil dripping under the truck! started freaking out, and headed home... figured the worst I did was maybe blow the side cover seal. turns out I pinched the back valve cover gasket
I just had a little scare! after all that, I pulled in to get fuel and saw oil dripping under the truck!
started freaking out, and headed home... figured the worst I did was maybe blow the side cover seal. turns out I pinched the back valve cover gasket
12-24-2006, 12:13 AM
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12-24-2006, 12:48 AM
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DDP4's are rated as a 140HP Injector, as well as 435's. They would probably just run/drive a tad better and have a iddy-bitty less smoke... But thats just speculation... lol
12-24-2006, 04:10 PM
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