Well I got the prochager packet today and after two months of consideration I still don't know. I like having power in the lower rpm range which the supercharger will do but the sts puts more power down at the same boost level. I know 383 with the turbo would be the best but moneys an issue. I want the best bang for the buck. Next summer it'll be time for a 383 if i still am making money. I can't find that much info on sts's for LT1's. I've looked all over. Any advice and opinions are apperciated. If anyone has an sts how do you like it and what numbers did you put down with the stock motor.

Thanks

 

Why not just go the 355 route?? The machining will be alot less and you will make very impressive gains if everything is matched correctly. It seems as though lately the 355 has gained alot more popularity in the FI community. I don't have any experience with the STS kit, but I did own a Prochager and I loved it. I have heard some good things about the sts kit though. I went with PTK ( although I am shooting for 900-1000rwhp) and the kit I ordered isn't even comparable with the sts, $$ and max output wise. At a lower power level I could see success with the sts, but now way is a rear mount going to even come close to a front mount in efficiency and power. THere are quite a few guys here running the sts and they say really good things about the kit. If it was between the sts and the procharger, I woud have to say prochager. Proven design, delivers what it says and reliable as all hell.

-Beau

 

Even though my sts kit is on an LS1, I love it. I think it's going to depend on how much you want to spend, and what you plan on using the car for. I've never had the Procharger, but it seems as though you can buy that kit, and pretty much be done. I enjoy have a project to work on, and I have had to add some things to my car. For example, FMIC, boost controller, 2 step. I just love the sound of the turbo spooling. But, I never said a S/C sounds bad!!

 

I have a procharger on my car and I love everything about it. Since I have just gotten my car tuned (after a couple of months of waiting) the feels strong as hell and pulls like a demon to redline. For the total kit (D1SC and Twin Highflow intercoolers) I paid just over 4k plus fuel upgrades for my 93 m6. STS will run you over 4k with the supporting fuel system. I love the blower wine, and see boost at 2500 rpm. If you want your STS to be intercooled, plan to spend more for a Front mount intercooler or meth injection. All in all, i love the boost at low rpm, the reliability of the system, and the overall price for 8 pounds of intercooled boost.

 

Still Having Fun!!!!!!!!!!!

 

It seems that the people that have either are very happy with them. So you probably can't go wrong either way. Both ways make power, and seem to be reliable.

 

Prochager sounds good because of power all through out the rpm's but I don't know if 8lbs of boost will hold together on a 95000+ motor and m6 even if it is intercooled and I've only heard of the sts's runing 12's and being dyno queens.

Kredz28
Do you have any dyno numbers or track slips.

Thanks

 

Have you seen the GTO's running 10's?? I'm working through some issues with mine, but I figure to be well into the 11's with mine, very soon. I ran a 12.2@116 last time out, with a 1.9x 60' time. If I can figure out how to cut a 1.5 or 1.6 60', I'll already be in the 11's, and that's before I solve any real issues!! When I get my combo figured out, low 11's should be do-able.

By the way, if you're definitely going FI, be careful with a high mileage motor!!

 

You seem confused here. The sts turbo will put down more power sooner than a centrifugal charger. Think about it, even with the little 60-1 turbo, if you have it set at 6psi it will hit 6 psi at ~3000-3500rpm. If you pulley your charger at 6psi you will only hit 6psi by ~6000rpm. That means your in full boost twice as fast as a centrifugal charger. Do the math…that means higher peak torque, more area under the curve, faster vehicle given equal traction. Go to ls1tech.com PM “Purevl”. He replaced his D1 procharger for an STS with Master Power T70 turbo and he made better numbers with it. Plus no need to worry about the slipping belt or tensioner problem.

 

Read post above

You need to look around. Plenty of people are making great mph, just not hooking up. Also, lots of people with M6 trannies are launching with no boost, so it wont launch as hard as a S/C car unless they use a 2 step. Look at Angie at Thunderracing, her LS1 with 5psi sts kit is a mid 11 car with very few bolt-ons.

 

I do not have any numbers yet because i went a different route with the tuning. I had a chip burned for me, then welded a bung on my header collector to get the wide band on before the cat. Then sent it back for adjusting. No track numbers yet...Waiting for my gm 12 bolt with 33 spline axles, ta girdle, eaton posi and 3.73's. As far as boost in concerned, i see a couple of pounds of boost at around 2500, then peak just after 5k. Judging by the STS Trans Am i rode in a while back, it saw peak boost just under 4k, and pulled great after that. I prefer my d1sc over the sts because i didnt like the lag. It also blew the tires away when it hit peak boost The power comes on smoother with the d1sc and builds boost throughout the powerband. Both kits will work great and you will make huge power with both, just depends what you want. ~kevin

 

WHY O WHY DO THE RACE CARS RUN WITH A TURBO ON THE HEADER?

Because thats where the most horsepower is.

 

If that mattered then I'd say your right. However, the poster wants to compare a rear mount kit to a supercharger. I am pretty sure he doesnt want a racecar or he would be considering a much bigger S/C.

 

You can buy a complete PTK kit minus I/C for $4K...buy an intercooler off of Ebay like quite a few folks are doing and fab up the piping. You'll be making more HP than the base STS kit with the T70 as opposed to the 60-1 for almost the same price.

IMO PTK is the way to go.

 

If you want to go fast get a Procharger. If you want to feel fast get an STS kit (or a Supra )