That they are offering this blower for a stock thirdgen. I dont know if Id want to put a blower THAT LARGE on a stock TPI car. I mean, the internals alone would make me think twice.

I have this vision in my mind. In the NMRA renegade class, the limit the blower size. The Vortech T-Trim is the equal of the Procharger D1.

I wouldnt dream of putting a t-trim on a stock 3rd gen either. *shew*

Just seems like a lot of blower to me. I know most of you here now installing the D1 have modded/rebuilt motors. I hope that they work out for you guys.

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-86 IROC
Vortech stuffed EFI 406 in progress
-=ICON Motorsports=-

 

Guido,

Even if I had a stock engine, I still would have bought the D1 (which has boost capabilities of 20 psig). Of course, I'd have it pullied to produce only 10 psig boost (it's called knowing the limits of a stock engine). The reason is simple. Us motorheads can never go fast enough -- right? So by buying a compressor that's capable of producing even more boost opens up more possibilities down the road. If I would have gone with a P1 (max boost of 12 psig), I would probably max it out and still want more.

Knowing that 10 psig boost is 10 psig boost, whether its produced by a P1 or a D1, I would go with the one with more "potential". This saves money in the long run.

Again, only my opinion.

Willie

[This message has been edited by Willie (edited January 03, 2001).]

 

I know your point of view willie. Id have done the same thing in your shoes. But you have a modded engine too. I hope in time that you bump up from 10psi though.

You know, there was a 305 TPI that had 24psi of boost once. He ran 9's. *hint hint jab poke*

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-86 IROC
Vortech stuffed EFI 406 in progress
-=ICON Motorsports=-

 

Guido, when I first contacted ATI, I told them I wanted 15 psig boost. They highly suggested I start low and work my way up. I arbitrarily chose 15 pounds knowing my stock engine (before the rebuild) was handling 10.5 pounds. After the rebuild, my boost reduced to 6. So in a way, ATI makes sense. With the 6 pounds and a 50 shot, I ran my best time of 12.04 (and blew my tranny on the way home after this run). My goal was to break 12 seconds -- oh, so close -- yet so far!!!

Let's assume the "10 pound pulley" I got really does give me 10 pounds. If so, it will be interesting to see if the additional 4 pounds is equivalent to a 50 shot. (I doubt it.) But again, my goal is to break 12 seconds without nitrous. If I can do this without upping to 15 pounds, so be it. Unlike you, I do not want to install a roll cage in my daily driver, therefore the 12 second limitation.

Did he run 9's once, followed by a mushroom cloud eminating from under his hood?? hehe

Willie


[This message has been edited by Willie (edited January 03, 2001).]

 

Guido,
I am installing my D1 on a STOCK 350 3rd gen,..my engine has never had the valve covers off, except to put some nice shiny covers on....I originally was going to go with the P600 series but after talking with ATI....and telling them my future plans of building a new engine....I was talked into the D1 purchase....Little did I know that I was going to be a guinnea pig....well we'll see how long the stock engine will hold up...
later,

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MÅN¡ÅÇ ©
88 IROC 5.7L,edelbrock TES,random tech cat,borla exhaust,chip,sfc,accel wires,airfoil,k&n's,ETC..
and soon to be supercharged
http://maniac.megamania.com

 

I don't see anything wrong with using a D1 or T Trim on a stock TPI. It leads plenty of room to grow for future HP demands.I might be wrong here, but larger the blower, the more Air(CFM) it can move at less rpm(blower speed). That would mean less heat in the intake charge.. right?

 

Here are a couple of good reasons to go with a D1 now.Like the previous post said,blower wont work as hard,less heat,more power.ATI doesnt have a buy back program like Vortech,so when its time to upgrade,like I did you have to sell it out right,I was lucky to sell it to some one I knew.And I think the equal of the D1 is not the T trim ,but the YS trim.But to really make you think,the P600B throws a lot of cfm too,but alows no room for improvement,when going wilder with your combo,well if you intend to run more than 15lbs.#1 reason for going with the D1 is the belt issue.Vortech doesnt even offer a 12 rib,6 rib is weak at best at anything over 8lbs.I had trouble adjusting to my P600B,when I first got the system to make 9lbs with the 8 rib.That 12 rib is massive and belt slippage is almost nonexsistant with the contact area of that belt and the size of the pully,plus for us D1SC owners,in a way,our problem with the initial design I see as a god send,that extra pully does wonders for contact,and getting rid of that belt slap increasing the contact of the belt even more.This unit is leaps and bounds over the P600B system,while good for stock and no more than 12lbs,I wouldn't recommend it for a rebuilt motor making some ponies.I also have the 10lb pully on my motor,I will probably see less,because of my motor being modded.

Willie,you should have no problem hitting 12s,my friend with his 305 and only a small compucam on a stock headed block hit 13.2 at 105 with 6lbs from his SN-93.He had gears and slicks,but an untouched block with stock chip,and fuel pump and 24lb injectors.I would see you in the 12s easy,traction considering.You are going to do back to back comparison?Compare old mph combo to the new right?Ets to ETs?At same boost level?WHat were your times befor?At what lbs of boost?Thanks

 

Actually, my best time with my old Paxton at 6 psig boost without nitrous is a 12.57. My best with a 50 shot is a 12.04. Traction is not an issue. I use Hoosier Quick Time DOT's at the track. These in combo with my line lock results in 60-footers in the 1.7x range.

Please check out my webpage. I've done back-to-back comparisons from day one, when I was running 15.90's. I would add a few mods, then hit the track again. All my results are posted. Heck, if I can run a 12.57 with "only" 6 psig boost, I would be able to click off a 12-flat with an ATI, right? Presently, the compressor has the 10 lb pulley. If that doesn't cut the mustard, I've got room to increase boost (which wasn't the case with my old Paxton).

Willie

 

Oops. The link to my webpage is in my signature.

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Willie

Supercharged 1987 305 IROC-Z, Daily-Driver, Emissions-Legal.
12.57 @ 111 mph.
12.04 @ 114 mph (50-hp nitrous).
http://members.optushome.com/au/downunder1/rides/willie/willie.html

1987 "20th Anniversary Commemorative Edition" Z28 Convertible -- Super Chevy Show Class Winner, 1998.

My custom front marker lamp assemblies:
http://members.optushome.com/au/downunder1/misc/lens.html

 

Wilie,your car is the exact same color as mine,same pinstriping and all,only difference is the Iroc-Z sticker is towards the back of the door.My interior is Dark Carmine Red.I see yours is black.I think this white and pinstripe combo looks the best.Others ask if I will keep the pinstrip and Iroc-Z if I ever repaint it,I say yes looking stock on the outside and running fast go really good together.I love your car so much,because it look just like mine.

Where did you get those fog lights,BTW?

 

Darren,

I love white cars, especially with contrasting accent colors (especially fond of red). My car was originally bright metallic blue. I wanted white so bad that I had it painted, which it needed anyways. Mine's an '87 and white IROC-Z's only came with silver or gold trim, not red. GM offered this combo in '88 and '89 (like yours). I wanted to keep it "looking" somewhat original, so I placed the door decal in the original position. My striping is not "factory". Notice the red and black striping is reversed from yours? I did this because it's closer to the '87 striping scheme, even though there is no exposed body between the two stripes on an '87. I found that by separating the two colors, the red stood out much better.

I also did not like the original "Tuned Port Injection" emblem on the rear bumper. On a white car, it was kind of hard to read. So I bought a red rocker panel TPI decal and stuck it on my rear bumper. Although the text is smaller than the original emblem, it's easier to read (and somewhat unique).

My original interior was gray. I wanted black. After years, I finally acquired all the interior panels in black. I have yet to locate a set of black '87 seats though. It looks like I'm going to have them made by an upholstery shop.

I also replaced the hood louvers with the '91-'92 style blisters. I painted them gloss black to appear similar to the original black louvers. Although I love the look of my hood and want to keep my car looking somewhat original, I may be going to a cowl induction hood soon. I just don't like where ATI mounts the air filter -- right over the header!!! I hate the thought of introducing such hot air into the supercharger. I'm considering installing a cowl induction hood and enclosing the raised portion with one hole cut out above the air filter, fabricating an enclosure around the air filter with an open top. The top would seal around an opening on the underside of the hood, effectively making it a fresh air system with the cowl inlet grate being the intake.

My fog lamps are Catz MSX driving lights. I believe their website address is

http://www.fet-usa.com

They are very expensive, but are awesome. Not cheap in appearance or performance like other brands you see at Pep Boys or AutoZone.

Do you have any pics of your car you could share? I'd love to see it!!

Willie

[This message has been edited by Willie (edited January 04, 2001).]

 

Willie,If you dont mind,Ill send you pictures in the mail.I have already sent pictures to Guido,and ProchargerIrocZ.Of when I first put my motor in my car,and they wanted to see my coil over pics.Just send me your address and I will send them.Im just about polishing off another disposable camera.Probably about 30 or so pics,of my current combo,suspension,car.Is there anyway you could post them for me,It would be very much appriciated,I have no scanner and I dont own a digital camera just yet.Thankyou if you can do me such a favor,but I will send you the pics anyway.Thanks again.

 

procharged
Could you send me some pics of your blower and coil over front end i would realy like to see it. I have a a white iroc with red accent with chrome zr-1 wheels if anyone wants to see it. Please email me at matt01b@aol.com

 

Hey Darren id like to see some more pics of your setup now that you are further along with it. The ones you sent me, didnt have the blower nad still looked pretty incomplete under the hood.



------------------
-86 IROC
Vortech stuffed EFI 406 in progress
-=ICON Motorsports=-

 

Darren,

CALL ME!!!!....I called ya and left a message the other night....
Willie...I told ATI to send you that metric bolt....and also send one to you,Darren...Then they tell me if you guys want the bolt you have to call...and request it.....They do have them in stock so I'm told....THe bolt they have is 10mm X 1.5...150mm long...That will work just fine!!!

Later,
Larry