Ls3 slo-poc

How far have you seen a d1 pushed. Would like to see if many people have been pushing into the 800s with any success. I'll be testing what I hope to be a solid setup.

Setup

376
TF heads
Meth
Med cam
8rib
7000rpm
Mn6

white01ss

iTrader: (37)

These should answer your question...

https://ls1tech.com/forums/forced-in...ou-making.html

https://ls1tech.com/forums/forced-in...will-make.html

forcd ind

iTrader: (7)

I didn't push mine to hard, but ran 9.91 136 @ 3900 lbs on 12 lbs boost, budget 408 in street trim, drag radials-my 60' wasn't great, but then it wasn't a drag car either, all steel 69 chevelle

The Alchemist

iTrader: (19)

I recently made 745rwhp with a fair bit of boost leak above 4800rpm. I'm fixing the leaks and should make a solid 800rwhp with a D1SC.

CALL911

iTrader: (17)

Specifically are you referring to the D1SC or the D-1? They are different and have different capabilities.

The Alchemist

iTrader: (19)

I'm guessing he means the D1SC which is the common supercharger for f-bodies.

Ls3 slo-poc

Thank y'all, it's in this vette. With the 4 inch upper and 7.95 crank I'll be able to still spin it to 7200 before the blower hits critical. If it makes any power up there. If not o well.

The Alchemist

iTrader: (19)

For reference, Detoxx has an LS3 vette as well with a D1SC and he made roughly 800rwhp with his setup.

Blackpanther99

iTrader: (8)

That's a clean Vette

CALL911

iTrader: (17)

D1SC's may be more common, but you can still have a D-1 in every application that is available for the D1SC.

At any rate; the D-1 is slightly more capable than the D1SC. Most D1SC's max out at about 15#'s of boost. I have heard of some hitting maybe a pound or so more. The D-1 will max out at around 18#'s and some have even hit more than 20#'s.

There are those that have broke the 800 RWHP mark with the D1SC. Although I would say that MOST people do not see this kind of power with it, I can say with some confidence that if your main goal was a specific 800 RWHP with it you could make it happen. From the OP's list of planned mods though, I don't know if it would happen. It would be in the ball park though if you have no belt slip, a good cam for the blower, and have a pulley combo and free flowing setup to allow max boost. FWIW, your chances would be better with the D-1. Or you could just have pretty much a garuntee and go with an F-1 unit.

99WS6_

iTrader: (1)

What wheels are those they look great

The Alchemist

iTrader: (19)

D1SC's definitely do NOT max out at roughly 15psi. Not sure where you got that information from, but I personally have logs showing north of 17psi and only spinning it 56,000rpm and that was with boost leaks out of both my iat sensor and my bypass valve. Once I fix those leaks, I'll see close to 19psi, maybe more. Guys who've pushed their D1's have seen 20psi on a 347 lots of times.

35thsscamaro02

Yea d1sc>d1. They don't make newer versions of head units to make them produce less. F1a>f1

Ls3 slo-poc

I'm good friends with toxx. You must not have seen the last video

The motor will hold what ever power the d1sc can make so we can pulley down to 3.8 and still spin the engine to 7k. We can always back it down and I still have the laughing gas for back up.

Ls3 slo-poc

19s ccw 550 fine texture black

The Alchemist

iTrader: (19)

I missed it. I'll check it out.

CALL911

iTrader: (17)

According to ATI's spec sheet both the D1SC and the D1 max out at 32#'s of boost although I have never heard of either reaching anywhere close to that. I would be impressed to see a D1SC hit 19#'s, but as I said I have heard of some achieving a couple pounds north of fifteen. The vast majority of guys with multiple combo's over the years that I have seen USUALLY max out at 15#'s. Some max out at 13#'s. Ponyhntr is a great reference since he worked for ATI for over a decade.

I'm sure for arguments sake we could start a poll to see where people are maxed out at.

Actually D1>D1SC

They both are almost the same, however the D1 impellor maxes out at 65,000 RPM where the D1SC impellor maxes out at 62,000 RPM allowing you to wind the D1 out further than the D1SC and why people with the D1 can achieve more boost over the D1SC. The D1SC's internal step up ratio is 4.10:1 vs the D1's 4.44:1.

Now, the D1SC is also self contained, so from a safety standpoint, it may be superior to the D1 since the D1 taps into the engines oil system.

The Alchemist

iTrader: (19)

They do not max out at 15psi. I was hitting 15psi spinning it to just 53,000 rpm. Now with a smaller pulley, I was getting boost leaking out of my proflo bypass valve.

There are a lot of guys who are north of 15psi.

yenkomike

iTrader: (2)

I have seen both go over 15# we keep turning my brothers d1sc slower to drop below 15# for pump/meth. I think he runs a 4.25 blower and 7.750 crank and it still goes mid teens at 6500 rpm.

it is hard to rate one of these by max boost as boost is just a measure of restriction . these blowers move a certain amount of air at a given rpm that we know . so the more boost you have the shittier your engine flows air.

Detoxx03

iTrader: (14)

Don't worry about it. Let's spin it until it cries.

Seriously though since we have less drivetrain loss it should make a good bit and we have seen plenty vette's in the 800's until they get bored and go F series.