D1SC or OFI? What would you go with?
 

Has anyone compaired the two yet? Yes I know the difference between the two, but they seem to put out around the same numbers, just a liltle curious. I know the D1SC is proven hands down, but not to much word on the OFI kit yet.

ATI. 1/2 the plumbing = 1/2 the headaches.

There are still OFI builds going on as I type this and if you wait until spring, Im sure numbers will be popping up everywhere...And if you want to know more about the D1SC, look up a member by the name "KP"(low 9's with one :eek: )...But in the end, it comes down to preference, like always.

Good point, sometimes I wonder if I souldve went with a F1A setup instead of a turbo. :judge:

Well what are you going to use it for?? If you're going with a stock engine for a while you're going to max out your combo with either one...

country boy has a good point, but i love turbos d

thats cause it take 3-4months to get an OFI kit ;)

I voted D1SC, its been proven to be reliable time a time again. That is why I just took delivery on my kit

Not sure how much is involved but I've always heard that turbos were a pain in the ass to tune? How true is this and what makes that so. Only downfall is the wait for the turbos! Where as the D1SC you can get alot sooner.

The upside that I prefer with the turbo is having the boost controler, where as the D1 you have to swap out pullies. Just my own thoughts though.

I went OFI for the ability to make 1000+ rwhp
ATI is simple, virtually maintenance free if you aren trying to max it out and sounds cool.

I'm not looking for those numbers but it's nice to have that option. :)

I would just be sketch on ordering anything that takes months to get delivered.

The D1sc is just easy, and gets results. BUT--there really is no beating a well designed turbo kit. I would not pay for one that is months out though.....

D1SC because of the power it makes, warranty, and Bob's @ EPP expertise/support behind it.

There are more areas of the map that are subject to boost with a turbo. The centrifugal's airflow is directly tied to engine rpm and tuning is more straightforward. The turbo on the otherhand could make 11 psi at 2500 to 6500 rpm and anything else in between so the tuning is much more involved. Your spark and fuel need to be dialed in for a much wider range of conditions.

I have gotton my delivery dates down to 4-6 weeks just for all of you to know. I had alot of orders at that time.

get our flanges so you can get a bunch of kits to the coater!! :)
OFI FTW!!

Turbo FTW.

I'm probably going to lock this soon because someone will get in an argument but pretty much my take on it all is...

If you want it NOW its hard to go wrong with the procharger, week or two and you have everything at your door. Easy to install, easy to tune and I have yet to see a head unit fail on an LS1 car. You need headers to get the most out of it so there is a little extra expense their. Either one you need a good fuel system and drivetrain so that doesnt matter.

Turbo can give you everything you want, install and tune is a little more involved, dont have to buy headers but you have the wait. I think the OFI stuff looks pretty nice though so its really a hard decision.

Personally I'm a no wait kinda guy, when I pony up 5-6K I wanna see some parts, may cost me a little ET and MPH and even some 'panty droppage' but I'm satisfied. Main thing is have fun with it when its done, its a big investment either way and its something that should be enjoyed and not frustrated over - buy what YOU want ;)

ProCharger girls don't wear panties, they all give it up to the Gods of Boost.

Heh, dont tell my wife that ;)

I've had both turbo and sc. If both had forged stuff and a great fuel system:

If I wanted a nice reliable true street car that I would drive and park and drive and park daily, I would buy a D1sc, put the boost around 12psi, tune it and forget about it.

Might possible do the same with an APS twin turbo system if it's as nice as the Vett system/old Incon system...but it's not available.

If I wanted something to keep tinkering with to go faster and faster I'd buy a turbo set-up from OFI, or others......which I'm hacking on today.

Then again, ya look at Kevin running 149.xx with a sc and go Hmmmmmmmmmmmm.

OFI FTW, could make some serious power if done right.

although the procharger would be faster to get and easier to maintain

turbo FTW!

yes, if you wanna wait awhile, then turbo is for you. even my STS took a couple of months to come together, but in the end it was worth it!! it just depends how you wanna boost!

what is the maintance differnce between the two? never really thought much about that, honestlly.

The ATI ProCharger is driven by a belt off the crankshaft.
The turbo systems are driven by exhaust velocity and exhaust heat.
There is less parasitic losses with a well designed turbo system, but there are very few good turbo systems on the market.
The OEM companies spend millions of dollars in R&D, where aftermarket companies largely rely on their customers for a lot of the R&D. Meaning, their kits get out on the market, and if problems are found, parts are redesigned. This method of R&D can work just fine if past customers kits are updated, and the companies stay in business. This last part, staying in business, has been a huge problem with most turbo companies. ATI ProCharger has been in business for over eleven years, and their kits have been redesigned and improved upon along the way. No turbo companies producing kits for our cars have been producing these kits for any length of time.
In my opinion there is a greater chance of turbo kits having some of their more expensive parts failing, due to the extreme heat cycles these parts endure. Turbo mounts fail, exhaust castings develop cracks, etc. Bob

Does anyone even have a OFI car running yet? Everyone keeps praising them, but Ive never seen any results. TTi (new sponsor) has done turbos on the LS1 since 98 and is proven.

I had a turbo, if I would do it all over again, Id get a D1SC.

My buddy is going to be running the OFI kit and I will be running an F1A, so I am anxious to see how each of our kits turn out. Most of the points bought up in this thread is why I decided to go the Procharger route.

One thing not pointed out is backpressure problems with a turbo kit. A turbo isnt the end all be all FI setup either because its "free" power.

Both are going to be badass.

:secret2:

http://www.turbotechnologyinc.com ??

Edit: Given the choices, I voted Procharger for proven performance. No offense to OFI, but I can't afford to pioneer a new kit.

I was thinking of the OFI, just to get rid of my super low SLP long tube headers. If I get the pro-charger, I will still probably want to spend money and replace those headers. But, I like the idea of sending away my PCM to get tuned since I plan on keeping everything stock, except for what I must change for the FI.

I would definitely go OFI with S-series. Good for daily driving....no annoying whine at idle, and easily adjustable from 7psi to 20+psi with a EBC.

what size s-series would you recomend for a built 347 as a daily driver?

S76 or S80. Both will push well over 1000hp and still be totally streetable.

I am pretty new to the idea of turbos, but what power can be expected from the s80 at 7-10#'s? on a 347 that is.

Well over 550rwhp+

Hey KP when did you go to the F1A?

Ive been running the OFI lt1 and love it ,runs amazing just weathers sucked for awhile so havent drove it a ton. mines a DD too

How can you stand by that statement? They made a turbo kit in 98, when our cars came out. Thats almost 10 years ago. Im sure they started before that also. Ati only has, what, 3 years on them?

Maybe I'm wrong, I didn't think they had been in continual production of their f body kits for that length of time. Bob

I think you are wrong. I had a TTI kit in 2001-2002 i think it was which is just before they changed it and made some improvements.

TTi has been around a while and has been in continious production, I dont think their first kit was out in 98 though - more like 99-2000 like everyone else but I could be wrong..

I was one of the first guys to buy a production LS1 F-body procharger kit in early 2001 I believe, so its been more then 3 years (may have been a little earlier). Doesnt seem like it but it has been :(

brought back from the dead due to a vote, nice.:jest: