Who got the highest boost readings from a D-1SC?
Who got the highest boost readings from a D-1SC? I was just wondering did anyone get 16-17psi from a D-1SC? If not what was the highest boost levels from a D-1SC on a LS1? Whats your pulley setup(BP and CP sizes)? Also please list the mods.
Originally Posted by 5-liter-eater
im at 12psi with a 4.0 pulley, hardly the big dog though
Do u have a 6 rib or 8 rib ATI setup? Do u have stock Crank pulley size? Give us more info about your setup. Thanks.
Originally Posted by 5-liter-eater
im at 12psi with a 4.0 pulley, hardly the big dog though
Stock motor?????
I know BLWNTA (Mark) see's 12psi w/ his 408ci motor and hes using SDCE spring tensioned 8 rib setup. I know Bos is seeing close to that too.
Kyle
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Yea, I see 12 consistently, but by the looks of it, I'll be going to and F1 and most likely using my 3.4" pulley, at 6500rpms that would put me 700rpms over the blowers 70,000rpm max, I'll have a FMIC on that, 100 octane, and hopefully around 17psi 
I want to sneak a cam in before it comes out again, but we will see, my FMIC should be here next week
I had plans to push the D1SC real hard upcoming, I ordered a 3.2" pulley, that with the FMIC would put me around 16-17psi Right now though in its current state, its bein spun 14,000rpms before its max........
I want to sneak a cam in before it comes out again, but we will see, my FMIC should be here next week
I had plans to push the D1SC real hard upcoming, I ordered a 3.2" pulley, that with the FMIC would put me around 16-17psi
Right now though in its current state, its bein spun 14,000rpms before its max........ LS1 Tech Stories
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Originally Posted by MelloYellow
Are you asking who has the most restrictive motor with a D1-SC? 
Originally Posted by LSs1Power
Whats ur engine, and exhaust setup?
The engine is not that restrictive if that is what you are getting at. On a full bolt-on 346, at the same blower speed it would be over 18 psi.
sorry left out the details
forged ls6 block 3.905 bore -2cc reliefs
6.0l stage 2 72cc FI heads
cam 230-234 .598-.602 114
ati d1 kit with ati damper and 8 rib
fast intake
ati race ready bov
1 3/4 longtubes
stock crank and stock rods(balanced)
forged ls6 block 3.905 bore -2cc reliefs
6.0l stage 2 72cc FI heads
cam 230-234 .598-.602 114
ati d1 kit with ati damper and 8 rib
fast intake
ati race ready bov
1 3/4 longtubes
stock crank and stock rods(balanced)
Originally Posted by 5-liter-eater
sorry left out the details
forged ls6 block 3.905 bore -2cc reliefs
6.0l stage 2 72cc FI heads
cam 230-234 .598-.602 114
ati d1 kit with ati damper and 8 rib
fast intake
ati race ready bov
1 3/4 longtubes
stock crank and stock rods(balanced)
forged ls6 block 3.905 bore -2cc reliefs
6.0l stage 2 72cc FI heads
cam 230-234 .598-.602 114
ati d1 kit with ati damper and 8 rib
fast intake
ati race ready bov
1 3/4 longtubes
stock crank and stock rods(balanced)
What is the SC pulley size?
Originally Posted by NoGo
383 All-bore, ported blower heads, LT headers, high speed collectors, 8.5:1 compression. Basically fully built with everything you can throw at it.
U have a great flowing motor there..... Whats the crank pulley size?
Originally Posted by NoGo
383 All-bore, ported blower heads, LT headers, high speed collectors, 8.5:1 compression. Basically fully built with everything you can throw at it.
The engine is not that restrictive if that is what you are getting at. On a full bolt-on 346, at the same blower speed it would be over 18 psi.
The engine is not that restrictive if that is what you are getting at. On a full bolt-on 346, at the same blower speed it would be over 18 psi.
Your info could really help alot of us out...... What size Crank Puley? the 7.25 that comes with the SDCE kit?? Were do you shift so we know how many RPM's you are spinning the blower at?? All 3" hard piping? Intercooler Dimensions?? Bypass valve? Sorry for all the question, but my FMIC shows up today and i am currently running the SDCE 8 rib w/ a 3.7" blower pulley shifting at 6600rpm and i was thinking about going with a 3.2" RR blower pulley. I should be pretty close to your boost levels with my 370. any RWHP numbers? Track numbers?
Thanks
Kyle
I spin the blower at 56k to 58k
ATI Race BOV
There is only one piece of piping forming a U from the blower to the intercooler (about 1.5' long)
Intercooler core is 1500 CFM spearco core (I forget the dimension). Custom end tanks (baffled)
To get the D1 up to that speed you basically have to pin and key everything, run a better balancer (ATI superdamper), and the SDCE tensioner. I can't stress the importance of alignment. Also it helps to keep the SC pulley above a 3.2 size. Try to size your cam accordingly to put the engine peak power north of 6000.
The big component to reaching this goal is the SDCE kit. Without it there is little chance of reaching this kind of boost/flow combination.
ATI Race BOV
There is only one piece of piping forming a U from the blower to the intercooler (about 1.5' long)
Intercooler core is 1500 CFM spearco core (I forget the dimension). Custom end tanks (baffled)
To get the D1 up to that speed you basically have to pin and key everything, run a better balancer (ATI superdamper), and the SDCE tensioner. I can't stress the importance of alignment. Also it helps to keep the SC pulley above a 3.2 size. Try to size your cam accordingly to put the engine peak power north of 6000.
The big component to reaching this goal is the SDCE kit. Without it there is little chance of reaching this kind of boost/flow combination.