Will a f1 procharger fit a lt1 f-body?

lt1lt1
09-09-2004, 03:24 PM
I am looking to possibly put a f1 procharger on an lt1 f-body? I am wondering if it will fit the d1sc bracket with proper belt allignment. Will the d1sc tubing connect properly because both d1sc and f1 have the same diameter inlet and outlet? Is there any major clearence issues and is it a major hassle? What exactly has to be done to make it fit? Do i need to remove fans or clearence block or frame, etc? I would like to keep my air conditioner and will run better gas if neccessary. I am not looking to set the world on fire with boost just trying to gain some boost back as I am at 7200ft in elevation and don't want to overspin the d1sc trying to regain boost in a 383 stroker? The closest track is at 6000ft in elevation and d1sc stroker cars only seem to get between 10-14 psi max because they lose approx 5-6 psi because of altitude and bad air. If it does fit without to much trouble I will just order a d1sc complete kit with twin high flow intercoolers and upgrade the head unit to a f1! Thanks for any help or reply!

streetbad
09-09-2004, 05:23 PM
The twin hi-flows may be too small for you.

lt1lt1
09-09-2004, 06:02 PM
Procharger says the twin highflow intercoolers are good to 800-900 horsepower. At this elevation (6000ft) I will probably only see 550hp at 15lbs of boost (guestimating) so the twin highflow intercoolers I assume will be fine. I know I will have to spin the blower harder to get the same boost you guys get at or near sea level which will create more heat but that is why I wanted to upgrade to a f1 over the d1sc (more effecient blower that will take 8,000 more rpm). Plus I will probably run 104-105 octane fuel! We lose approx. 25-30% of our power up here at 6000ft. Any ideas or suggestions are greatly appreciated!

Josh-'04 GTO
09-09-2004, 07:27 PM
I had done some research on this, and was told the F1 will bolt up to the D1SC brackets. Not sure about the intake/discharge tubes. I believe you can also order the D1SC kit, and just pay around $400 extra or so to have the F1 instead of the D1SC.

As for the twin highflows, they'll work, but a large Spearco etc. would be better for ultimate power output.

SloLt1Z
09-11-2004, 08:04 AM
My friend has a 93 lt1 with a f1 I think the d1sc bracket fit, but may have been slightly modded. He had the twin ICs, but they wouldn't stay together(allthe hoses would blow off even with good clamps). The still made over 700 RWHP with them though.

rskrause
09-11-2004, 09:37 AM
This has been hashed through extensively. If you a search in "Forced Induction" with the keyword "F1" you will find a number of threads that address this.

Rich

SMOKNZ
09-11-2004, 04:49 PM
This has been hashed through extensively. If you a search in "Forced Induction" with the keyword "F1" you will find a number of threads that address this.

Rich

Unfortunately "F1" is to short a word to work in this site's search feature, so nothing comes up... Thats one thing I hate about this site... :mad:

Willie
09-11-2004, 06:31 PM
The P1SC, D1SC and F1s external case is identical. I replaced my D1SC with an F1, using the same bracket.

TenaciousDB
09-14-2004, 03:41 PM
The F-1 will indeed bolt right up to the P-1SC/D-1SC bracket. The transmission side of the casing on the F-1 is a bit larger than that of the other units, however. Due to this, I believe some grinding away of the engine block is required in order to get the unit to clear the engine itself. If you've ever seen how close a D-1SC is stuffed down there on the LT1, you know what I mean.

At one point I was told by ProCharger that it has been done but it is not an official offering. In other words, they'll sell it to you, just don't ask them for help with it. :p

I think the twin IC's should be up to the task for what you're looking to do.

Dave

rskrause
09-14-2004, 07:42 PM
There is no grinding of the block needed. The twin IC's will be too small and will restict flow excessively.

Rich

lt1lt1
09-15-2004, 01:01 PM
If I did upgrade to a spearco frontmount are there going to be any cooling issues as the formula picks all the air from the bottom of the car. I plan on keeping my air conditioner and just thought that making air go through the front mount -then the ac condenser -then the radiator would cause cooling issues that is why I was thinking about useing the twin high flow intercoolers (as they dont block any air going to radiator,etc.) and running 105 octane gas? Procharger is claiming 800hp through the twin high flow intercoolers but of course they are trying to move their product. If you guys think the twin high flow intercoolers won't be enough for say 10sec et's then please let me know. I am just wanting to hit high 10's at 6000' ft in elevation! Remember I will need to spin the supercharger a little harder (approx 5psi which should create a little more heat) to get the same psi you get at Sea level due to elevation that is why I am getting the f1! Thanks for the help!!

Josh-'04 GTO
09-15-2004, 07:45 PM
Take Rich's advice and ditch the twin "highflow" idea. Those are too small, and even if you do manage to cram good boost numbers through them, they will not do a good job of removing heat from the intake charge.

Ucantcme57
09-16-2004, 10:57 AM
Willie is posting good numbers through his twin IC setup.. He has the heat to deal with too... Why are the twins being bashed so much?

RealQuick
09-16-2004, 11:21 AM
A local guy here (ATI distributor) picked up 2 psi by using the front mount over the twin IC's that comes with the kit. With the twin IC's, the pulley was producing 8 psi at the intake, while with the front mount the boost reaing was 10 psi at the intake. Just thought I'd report what he said.

lt1lt1
09-16-2004, 12:17 PM
Does anyone make a custom spearco front mount that will be realitively easy to bolt in? Do the twin high flow intercoolers really suck that bad? I see that they may be more restrictive but are they really that ineffecient? Why does procharger rate the set up at 800-900 horsepower if they suck so bad? I Just want to see 10's at 6000ft in elevation!!

IDOXLR8
09-16-2004, 01:14 PM
I find it pretty funny how ATI claims that the twin high flows are rated 800-900 hp. Actually I will go out of the way and state that they told me a year and a half ago that the twin high flows were only good for 700 hp. As Rich already stated to get the most out of the setup I would highly recommend going with a Spearco front mount intercooler. IMO the twin high is a poorly constructed kit with many restrictions. Again I am basing my statements on experience rather what ATI says and what I hear from other people. Unlike Rich I did have to grind away my block in order to clock the blower outlet in the 6 o clock position. I also did have to have my friend make me a custom spacer in order to line the blower crank pulley with the blower pulley.

MEAN LT1
09-16-2004, 03:31 PM
I also did have to have my friend make me a custom spacer in order to line the blower crank pulley with the blower pulley.

Now thats news, i didnt know that ART. is that something common people have to do with the F1 ?

Hoostie
11-02-2004, 04:08 AM
Does anyone have any pics?

IDOXLR8
11-04-2004, 09:34 AM
Does anyone have any pics?


What are you trying to see with pics? The F1 mounts like the rest of the ATI blowers designed for an LT1.

Hoostie
11-08-2004, 02:34 AM
Well, some poeple say they have problems with clearencing, and others don't. I have a couple of friends that work at ati, and they say that not many people have teid it. I basically just wanted to know the biggest blower I can fit. Maybe an f1-c, guess I just need to look at the demensions.

mongse_1
11-08-2004, 08:56 PM
I find it pretty funny how ATI claims that the twin high flows are rated 800-900 hp. Actually I will go out of the way and state that they told me a year and a half ago that the twin high flows were only good for 700 hp. As Rich already stated to get the most out of the setup I would highly recommend going with a Spearco front mount intercooler. IMO the twin high is a poorly constructed kit with many restrictions. Again I am basing my statements on experience rather what ATI says and what I hear from other people. Unlike Rich I did have to grind away my block in order to clock the blower outlet in the 6 o clock position. I also did have to have my friend make me a custom spacer in order to line the blower crank pulley with the blower pulley.

Hey, they also say the P-series blowers will do like 30+ psi. :lol:

I'd go w/ a Spearco FMIC. You can get 3 2-110 cores welded together w/ endtanks on top and it'll work pretty good. Should run between $700-$800 depending on the dealer. I know some guys are running the OBX units and they seem to work pretty good.

MEAN LT1
11-09-2004, 05:58 AM
Hey, they also say the P-series blowers will do like 30+ psi. :lol:

I know some guys are running the OBX units and they seem to work pretty good.

Yea, alot of the LS1 guys are trying out the obx intercooler to get away from using the twins.

IDOXLR8
11-09-2004, 09:59 AM
Hey, they also say the P-series blowers will do like 30+ psi. :lol:

I'd go w/ a Spearco FMIC. You can get 3 2-110 cores welded together w/ endtanks on top and it'll work pretty good. Should run between $700-$800 depending on the dealer. I know some guys are running the OBX units and they seem to work pretty good.


You mean they don't make 30 psi of boost. :D

Someone needs to tell ATI that the P1SC has enough problems making half of that. They will then direct you to the experts who will tell you that they have many cars in the country making 30psi out of the P1SC. All I have to say to that is yeah right. :D

IDOXLR8
11-09-2004, 10:04 AM
Well, some poeple say they have problems with clearencing, and others don't. I have a couple of friends that work at ati, and they say that not many people have teid it. I basically just wanted to know the biggest blower I can fit. Maybe an f1-c, guess I just need to look at the demensions.

I unfortunately do not have any good pics of the blower installed on the car. We had to grind away quite a bit near the freeze plug on the front of the motor. The amount of grinding is dependant on how you plan on clocking the blower. It is funny how bad ATI lies about stuff. They told me that they have several cars running the F1 blower on LT1. :D

mongse_1
11-09-2004, 10:53 AM
You mean they don't make 30 psi of boost. :D

Someone needs to tell ATI that the P1SC has enough problems making half of that. They will then direct you to the experts who will tell you that they have many cars in the country making 30psi out of the P1SC. All I have to say to that is yeah right. :D

It's funny they put that number out, but when you ask them about running a 15# pulley, they say no. :confused:

As for the block grinding issue, I thought that only applied to the F-1R unit. I could be wrong, but I know the F-1R head will need about a 1/2" of block clearancing right above the freeze plug.

Hoostie
11-09-2004, 08:56 PM
I unfortunately do not have any good pics of the blower installed on the car. We had to grind away quite a bit near the freeze plug on the front of the motor. The amount of grinding is dependant on how you plan on clocking the blower. It is funny how bad ATI lies about stuff. They told me that they have several cars running the F1 blower on LT1. :D


Well I didnt exactally ask ati, I asked 2 really good friends that work there. Guess I need to get some money and find out.

Ponyhntr
11-10-2004, 10:37 AM
Hey, they also say the P-series blowers will do like 30+ psi. :lol:

Yes, they will-kinda. The ratings that ProCharger gives on the blowers is the max boost the unit can make before it gets too inefficient, starts to have compressor surge, or has too much strain on the internals and impeller. Those boost #'s are NOT what they can make on any given engine. Expecially on a mildly built V8, let alone on a highly built one.

It's funny they put that number out, but when you ask them about running a 15# pulley, they say no.

Well, that's because it's nearly impossible with a P1SC on an LT1 or LS1. The pulley would have to be so small that you would either slip the belt or redline the blower before it gets to 15#. It may be possible with a D1SC, with it's helixed impeller, but not with the P1SC's straight impeller.

mongse_1
11-10-2004, 12:07 PM
Yes, they will-kinda. The ratings that ProCharger gives on the blowers is the max boost the unit can make before it gets too inefficient, starts to have compressor surge, or has too much strain on the internals and impeller. Those boost #'s are NOT what they can make on any given engine. Expecially on a mildly built V8, let alone on a highly built one.
Right, but that's a tad on the side of false advertising. 30# is a mark that the F-series stuff hits w/o a problem, not a little bity P-charger. ;)


I think ASP used to make 15# pullies for the p-series blowers. In fact, there's a couple people on here who have or used to have them. Myself, I'd never try to spin a little p-series that high, but it's been done and they did work. From what I remember, ATI never warned me about the impeller type, it was more along the lines of the RPM the impeller would see. If you needed to run that much boost, changing head units is not only the more efficient route, but it's a lot safer too. ;)

IDOXLR8
11-10-2004, 12:20 PM
Right, but that's a tad on the side of false advertising. 30# is a mark that the F-series stuff hits w/o a problem, not a little bity P-charger. ;)


I think ASP used to make 15# pullies for the p-series blowers. In fact, there's a couple people on here who have or used to have them. Myself, I'd never try to spin a little p-series that high, but it's been done and they did work. From what I remember, ATI never warned me about the impeller type, it was more along the lines of the RPM the impeller would see. If you needed to run that much boost, changing head units is not only the more efficient route, but it's a lot safer too. ;)


I know when I had my P600b ATI sold me a 15 lb pulley. They told me that the P600b was a great blower and how I would have no problems running the 15lb pulley. Yeah no problem because after the blower encountered a bearing failure (did not overspin blower) they wanted to charge me an arm and a leg to rebuild it. Regardless of what the problem is ATI always blames the customer. I have heard just about ever excuse in the book. :D

I find it hard to believe that the P1SC would make 30 psi of boost through my RC Car motor. :D