Ati D-1sc Vs Sts Turbo
Originally Posted by bradyb
Here's my personal experience:
My car, see numbers below: My buddy's car 2001 SS 6-speed ATI at 7 Psi, he dynoed at 407 rwhp with 430 rwtorque. So my car dynoed at 2 pounds less boost but made more power then the ATI! Our cars are identical with about the mileage.
A Turbo is more efficient and I do get better gas mileage. Going to SEMA at 5PSI I got 30 MPG on the highway doing 85/90 with my 6-speed.
My car, see numbers below: My buddy's car 2001 SS 6-speed ATI at 7 Psi, he dynoed at 407 rwhp with 430 rwtorque. So my car dynoed at 2 pounds less boost but made more power then the ATI! Our cars are identical with about the mileage.
A Turbo is more efficient and I do get better gas mileage. Going to SEMA at 5PSI I got 30 MPG on the highway doing 85/90 with my 6-speed.
BTW.. I decided on the ATI over the STS for a couple reasons. 1) My tuner installed a STS kit on one of his customers cars and was kinda impressed with the kit but it seems to make really good numbers you need to upgrade the turbo, add a BOV, add either meth or IC to it, and then to add to it when he went to tune it he found that the location of the MAF was getting some turbulance causing tuning issues. (not saying this happens with all STS kits) 2) All the STS equipt vehicles around here, from what Ive seen, have had issues, in one way or another. They are very impressive when they are running. Water in the motor from wet conditions, motors getting hurt, etc. 3) ATI is a tried and true kit.. and to top it off you can get a smog legal kit and here in CA that kinda matters to me. (Even though Im gonna pass a D1SC off as a P1SC
) 4) The whole "use the piping for a SFC" kinda makes me laugh... and I dont want to give up my already welded in SFCs 5) I already have LTs and Y pipe, good foundation for the SC 6) The issues with belt slip are coming to an end.. ATI is developing a new bracket that will use a shorter belt, a TON more belt wrap, and I think it should be available very soon. Ive already seen one on a car.. the first one ever to be tested outside of ATIs place... and it works WELL!Not to mention I get all my ATI stuff at cost too.. trust me though thats NOT why I went ATI. I also had a chance to get a STS kit, with upgraded parts, for cost as well.
Ive always been impressed with the Procharger stuff.... but dont get me wrong Im impressed with the STS stuff too.. it just wasnt for me.
is your procharger on yet? Cause if it aint your in for a big surprise with cruise buck 
I spent 540 bucks FROM ATI THEMSELVES cause they know theres cruisebuck at 3k but they tell everyone to live with it unless you want to run a bypass on each side of the air box with the race ready bov as well like I did. Also there intercoolers are complete **** after 580 rwhp. They are however supposed to be making new ones that are thicker and better. I would get those if I were you or fmic the kit. Thats the best way to go. As for water, well unless your moving your filter, get used to more water cause I got water from the d1 as well. I never had many issues with the belt so cant complain there. I got slip but nothing to be concerned with. As for the sts maf, works ok on some cars an not ok on others. I moved my maf which was no big deal but your still correct. There are sometimes issues with that.
I spent 540 bucks FROM ATI THEMSELVES cause they know theres cruisebuck at 3k but they tell everyone to live with it unless you want to run a bypass on each side of the air box with the race ready bov as well like I did. Also there intercoolers are complete **** after 580 rwhp. They are however supposed to be making new ones that are thicker and better. I would get those if I were you or fmic the kit. Thats the best way to go. As for water, well unless your moving your filter, get used to more water cause I got water from the d1 as well. I never had many issues with the belt so cant complain there. I got slip but nothing to be concerned with. As for the sts maf, works ok on some cars an not ok on others. I moved my maf which was no big deal but your still correct. There are sometimes issues with that. I actually pieced my ATI kit together.. Ive heard of the surging problem but Im going to use a OBX FMIC with a Vortech Race BPV. I did hear about the thicker twins.. I guess they will be used only on the Vette kits from what Ive heard. The place I bought all my parts from wanted me to get the thicker twins and try em out but I had already bought the OBX.... and I think the OBX may work a little better anyways.
TECH Enthusiast
Joined: Oct 2003
Posts: 729
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From: Bakersfield, Ca.
Avengeance, How are you going to get your LT's to pass California inspection? If you can get them to look past that, they will look past wether it is a P1 or a D1.
And I really wish STS would put a fire under their respective butts and finish getting their CARB cert. Then I think it will be the only aftermarket Turbo that can pass a Cali smog inspetion (that I know of).
I thought the filter from the ATI was pretty low too? How close to the ground is it in inches?
Thanks for the good info.
And I really wish STS would put a fire under their respective butts and finish getting their CARB cert. Then I think it will be the only aftermarket Turbo that can pass a Cali smog inspetion (that I know of).
I thought the filter from the ATI was pretty low too? How close to the ground is it in inches?
Thanks for the good info.
Thread Starter
Launching!
Joined: Sep 2004
Posts: 246
Likes: 0
Originally Posted by LSs1Power
Im running an ATI D-1SC setup and love it... The whole cost for my 8 rib setup(No belt slip) is around 5K with the fuel system. I drive the car everyday and its making around 400rwtq at 3Krpm and 500rwtq at 4400RPM. Keep in mind this is with 8psi and stock bottom end engine running a conservative tune. With a built bottom end and 15-18psi this setup will net over 700rwhp. The vette guys are making almost 800rwhp with the D-1SC. EPP is running 15psi with the ATI setup with no problems and making close to 600rwhp on a mustang dyno(close to 700rwhp on a dynojet) on stock engine. The nice thing about the D-1SC is that u can make 450rwhp if u want and close over 700rwhp if u want without changing a turbo to suit your setup which could add more lag. The throttle response is awsome too with a blower which feels like a N/A engine. On the road course my car respond really fast when i need more gas instantly.
It all comes down to what u really want, do u want a whinning sound or a whoosh sound. Do u want brutal midrange or better low end (under 4K RPM) or endless high end (over 6K rpm). You have to make up your mind on what u want . Good luck.
It all comes down to what u really want, do u want a whinning sound or a whoosh sound. Do u want brutal midrange or better low end (under 4K RPM) or endless high end (over 6K rpm). You have to make up your mind on what u want
. Good luck.LS1 Tech Stories
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Originally Posted by Wildman
Avengeance, How are you going to get your LT's to pass California inspection? If you can get them to look past that, they will look past wether it is a P1 or a D1.
And I really wish STS would put a fire under their respective butts and finish getting their CARB cert. Then I think it will be the only aftermarket Turbo that can pass a Cali smog inspetion (that I know of).
I thought the filter from the ATI was pretty low too? How close to the ground is it in inches?
Thanks for the good info.
And I really wish STS would put a fire under their respective butts and finish getting their CARB cert. Then I think it will be the only aftermarket Turbo that can pass a Cali smog inspetion (that I know of).
I thought the filter from the ATI was pretty low too? How close to the ground is it in inches?
Thanks for the good info.
I hear you about STS.. I emailed them towards the end of 04 and they told me that they were anticipating a carb cert early 05.. still not here though.
The ATI filter is pretty low.. but from what Ive seen its kinda tucked behind the front end. Of course it would be a problem in a good size puddle but from normal rain I dont think it would be a problem. My friends STS Z71, some of you know him as F8L Z71, drove through a storm we had here and even on low boost, Im pretty sure it was low *5psi*, sucked up some water and had to drain his FMIC.
Originally Posted by slow ride
I will take the brutal midrange please. I am assuming that is the STS unit?
Any turbo kit... Thats how turbos act unless u run a really large turbo then u will get all the power in the topend.
Thread Starter
Launching!
Joined: Sep 2004
Posts: 246
Likes: 0
Originally Posted by slow ride
D-1SC/P-1SC and STS owners I would like some feedback good or bad on both these units. This is a daily driver 2002 SS M6 with a stock LS1 Just most bolt on's. I drive 50-250 miles a day and would like to maintain at least 20 MPG. It has to be depenable and most of all FUN!!! to drive. Lots of TQ. I think you get idea. Not a drag king or a dyno queen. Current dyno is 362/370 I know that I can do a H/C and make 425-450 hp for about the same amount money I think that I would like to try the F/I route making 450-500RWHP?. So owners of these let me know your experiences please. I am flexable and open to sugesstions. If I left any thing out let me know. I am thanking all of you in advance. I am a fifty year old newb so take is easy on me please. 
Originally Posted by Avengeance
My LTs wont pass inspection... I still have my stock stuff for when that comes around. Ive heard of people passing a D1 off as a P1 often enough. I have another trick up my sleeve too.
I hear you about STS.. I emailed them towards the end of 04 and they told me that they were anticipating a carb cert early 05.. still not here though.
The ATI filter is pretty low.. but from what Ive seen its kinda tucked behind the front end. Of course it would be a problem in a good size puddle but from normal rain I dont think it would be a problem. My friends STS Z71, some of you know him as F8L Z71, drove through a storm we had here and even on low boost, Im pretty sure it was low *5psi*, sucked up some water and had to drain his FMIC.
I hear you about STS.. I emailed them towards the end of 04 and they told me that they were anticipating a carb cert early 05.. still not here though.
The ATI filter is pretty low.. but from what Ive seen its kinda tucked behind the front end. Of course it would be a problem in a good size puddle but from normal rain I dont think it would be a problem. My friends STS Z71, some of you know him as F8L Z71, drove through a storm we had here and even on low boost, Im pretty sure it was low *5psi*, sucked up some water and had to drain his FMIC.
I'm going the same route as Avengeance. There are shops that will build a custom kit with a custom FMIC, 8 rib, etc. for under 5K. I already have the fuel system, headers, 4.11 gears anyway. If I went turbo (which is still a small possibility), I'd go front mount, but the extra cost would be to far off what I want to spend right now. Anyway, I respect the opinion of those that have had both turbo and super, but would I be dissapointed in a supercharger if I got it? Or would I be happy with it, but happier with a turbo?
Thanks for starting this thread, I've been pulling hair out trying to figure out which way to go myself for the last 3 months.
Dan
Thanks for starting this thread, I've been pulling hair out trying to figure out which way to go myself for the last 3 months.
Dan
TECH Enthusiast
Joined: Oct 2003
Posts: 729
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From: Bakersfield, Ca.
Originally Posted by DanZ28
I'm going the same route as Avengeance. There are shops that will build a custom kit with a custom FMIC, 8 rib, etc. for under 5K. I already have the fuel system, headers, 4.11 gears anyway. If I went turbo (which is still a small possibility), I'd go front mount, but the extra cost would be to far off what I want to spend right now. Anyway, I respect the opinion of those that have had both turbo and super, but would I be dissapointed in a supercharger if I got it? Or would I be happy with it, but happier with a turbo?
Thanks for starting this thread, I've been pulling hair out trying to figure out which way to go myself for the last 3 months.
Dan
Thanks for starting this thread, I've been pulling hair out trying to figure out which way to go myself for the last 3 months.
Dan
$5K is a lot of money for any kit, and I think you would be upset with yourself if you decided you got the wrong kit. If there is such a thing
Post in the Western section, maybe attend a get together. I think in any case, with either kit, you will have fun.
Originally Posted by Wildman
If you live in the Bay area, you should see about getting a ride in each one before you make up your mind. I know there are guys on this board with each kit that live up there. Check with Synergie, they might help.
$5K is a lot of money for any kit, and I think you would be upset with yourself if you decided you got the wrong kit. If there is such a thing
Post in the Western section, maybe attend a get together. I think in any case, with either kit, you will have fun.
$5K is a lot of money for any kit, and I think you would be upset with yourself if you decided you got the wrong kit. If there is such a thing
Post in the Western section, maybe attend a get together. I think in any case, with either kit, you will have fun.
Dan
12 Second Truck Club
Joined: Feb 2002
Posts: 5,574
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From: Sacramento, CA
Nick you foo! I was on high boost with no sock and the oversized air filter. :p
I ran around with the small filter, the sock and 5psi and and I had zero issues.
IMO you need to do something about the filter concering water on both kits if you wanna be worry free.
As for Dan, he is very well versed in the F-body world and drag racing in general and I think the ATI kit (peiced together like Avengeance is doing) is the best bet for his needs unless he wants to spend the money on a front mount which is superior IMO.
I ran around with the small filter, the sock and 5psi and and I had zero issues.
IMO you need to do something about the filter concering water on both kits if you wanna be worry free.
As for Dan, he is very well versed in the F-body world and drag racing in general and I think the ATI kit (peiced together like Avengeance is doing) is the best bet for his needs unless he wants to spend the money on a front mount which is superior IMO.
Originally Posted by F8L Z71
Nick you foo! I was on high boost with no sock and the oversized air filter. :p
