EPP

iTrader: (22)

Thanks! It wasn't easy, as I work on it between phone calls, and after we close for the day. Bob

T/A KID

iTrader: (12)

Bob I don't know what you guys are reving this car too, but what is the Typical Blower Speed on your D1SC cars?????
Procharger does not publish their compressor charts and I have seen and heard of people having great succes reving them in the 54000-57000 RPM. Anything past that just heats the blower up and could cause a loss in power from my understanding.

What are your thoughts on this b/c I am about to buy my Crank pulley an if I go with a 7.625 (LT1) I will spin my D1SC to 60571 RPM.

EPP

iTrader: (22)

We're revving the car to 6200 rpm, and the blower speed is close to 62,000 rpm, which is about the highest we like to see them at. We haven't seen a power loss taking them to 62,000 rpm, we have at higher rpm speeds. A lot of it is going to depend on what inlet hat and air filter assembly you are using, which can be restrictive. Bob

T/A KID

iTrader: (12)

Thats what were reving my setup to 6200, 7.625 Crank pulley and a 3.2 Blower Pulley.

From Prochargers website 62000 is the max "Recommended speed from a D1SC" so I suppose Procharger head units dont' like to be pushed more than that. From what I have heard Vortech guys push those head units past their recommended Blower RPM all the time.

Ok that makes me feel better b/c I am going to run a 4inch 90 or maybe a little more bend with as big as a Filter I can put on it .
I also have a SDCE 8Rib Tensioner with a Vortech Mono Bypass

Ed Blown Vert

iTrader: (2)

Nice numbers

EPP

iTrader: (22)

Thanks! I'm really surprised we were able to get 16 psi of boost with the 402 ci. Bob

EPP

iTrader: (22)

Here is one of the runs we made, this car is consistantly putting out 750 to 757 rwhp, run after run, all on 93 octane unleaded! The torque is right up there close to the horsepower! Bob

V-10 Killer

iTrader: (22)

Thats awesome Bob! Congrats, If I ever get tired of the 402 plus spray, maybe I'll send my TA over for this type of setup

OUTLAWZ RACING

iTrader: (9)

Great numbers good god Im trying to get those numbers now. Do u have specs on the cam and heads?

EPP

iTrader: (22)

Thanks, it looks to be this package here from SLP. Bob

Cylinder-Head-and-Cam Package, 1999-05 402 CID LS1 600 HP

--------------------------------------------------------------------------

Save Money on this SLP AFR Cylinder Head and Cam Package

We teamed up with AFR to bring you these street/strip heads and matched them with one of our high performance LS1/LS2/LS6 cams for an even better deal. The heads flow enough air (up to 320 CFM intake) to keep up with our ZL402 engines but they work with all LS1, LS2 or LS6 small blocks as large as 427 cubic inches. The secret to the high flow numbers are CNC porting and a newly designed combustion chamber with a double quench pad area.
Another reason we picked these heads is the rugged design that can live on top of a high-power engine. Don’t worry if you use nitrous or a blower because AFR’s 3/4 inch-thick deck is standard, along with reinforced rocker stud bosses, thick-wall runners and interlocking ductile iron valve seats. To maximize performance, we include double springs (.600 inch max lift) and titanium retainers.
To really get the full potential of these heads we matched them to our most aggressive cam for larger displacement engines.

Camshaft Specs: Valve Lift Duration@.050
in: .596" 250º
ex: .596" 246º


Centerline - 114º
Lobe Separation - 114º

Best of all, you’ll save $25 over the cost of purchasing the parts separately!

NOTES: These heads are ready to bolt on, but we recommend that final assembly of any engine be performed by an experienced, professional mechanic.

AFR SLP Cylinder Head and Cam Package features:
Intake flow up to 304 CFM at .500 lift, 320 CFM at .600 lift @ 28” of H2O.
Exhaust flow up to 250 CFM at .600 lift @ 28” of H2O (using 1-7/8 inch exhaust pipe).
225cc heads with 65cc combustion chamber.
CNC ported intake and exhaust ports, and combustion chambers.
2.080 intake, 1.600 exhaust standard length valves.
3-angle radiused valve job.
7° titanium retainers and valve locks.
1.290 inch double springs, 135 lbs seat, .600 inch maximum lift.
Fully assembled heads ready to bolt-on.
Matched .596”/250º int. .596”/246º exh. camshaft.
Will require shorter pushrods (heads milled approximately 0.042”); SLP always recommends measuring proper pushrod length (for use with SLP 51014/51015 cams, PN 53107 pushrod is likely)

2001WS6Vert

Bob, can't you do a simulated 1/4 mile run with that Mustang dyno? I'm just curious what that number would be.

EPP

iTrader: (22)

Yes we can, but I'm afraid this car would blow the tires right off the dyno. Traction in 4th gear at wide open throttle is getting close to spinning as it is. We noticed this afternoon that the rear tires are getting all balled up, and that is from getting on it from 3000 rpm in 4th gear. Bob

Superado

iTrader: (34)

awesome #'s, however, isn't there more there with a slightly different cam? Those specs are not in-line with what "should" be optimal (intake/exhaust separation) for a S/C are they? OR...do you think that is one of the keys to getting it to the level you have? Thanks Bob and everyone @ EPP for another awesome write-up w/ great pics!

EPP

iTrader: (22)

Excellent question!
The engine/blower combination in this car was already assembled and installed when this customer brought his car to us. The cam that is in this car is not what I would consider to be an optimal blower camshaft for this combination, but it again goes to show that with boost you can make a lot of power with a lot of different combinations that just shouldn't work. It would be interesting to swap this cam out for our blower cam to see what the dyno graph would look like. Thanks! Bob

Ryan@ABear

Very, very cool.

02SSLE

iTrader: (26)

Man Bob you all do some nice looking installs. I also like that you are always postings updates to things you all do. Keep up the good work.

onefastss223

iTrader: (14)

I think its time to upgrade to the D1 and swap shortblocks, too! As if the HP wasnt good enough, that torque is awesome. Congrats, guys.

EPP

iTrader: (22)

Thanks guys, I appreciate it. We also have a dyno video that we will have on here shortly. Bob

Jake@EPP

As bob said, we did a video on this car. There will be aditional video if the car is ran at the dragstrip, but for now here is this. The D1sc really screams uptop when it is making the 16#'s of boost!

Click the link below to display the video
750rwhp Pull

EPP

iTrader: (22)

Thanks Jake! If time and weather permits, we'll have this car at Muncie Dragway tomorrow, with track footage to follow! Bob