Hey fellas,
I didn't see this posted anywhere else. I just received this reply to an email I sent to SDPC. I asked where they stood on these things:

The Vortec TPI manifold is about 3-four weeks away. They are currently in production!
We tested with stock runners, stock throttle body, stock mass air flow sensor and stock computer and chip. the numbers are as follows.

Stock L98 engine 250 hp
L98 with Vortec heads and TPI Intake - 300 hp
ZZ4 cam and 1.6 rockers on the intake side - 335hp
Hot Cam Kit - 375hp

We tried the Edelbrock runners, throttle body and E-Tec heads (200cc) with minimal gains.

The gains seem too good to be true. A factory long runner setup with 375 horses. If they ever deliver it, it would be awesome. Time will tell I guess.

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1989 IROC-Z Original 350 was swapped for a 305! Now I have a take-out 350 4-bolt main Vortec truck motor, ready to set things right

 

For the amount of time that Scoggin Dickey has been "smoking out the tailpipe", most of us will believe it when we see it.

 

Did they say if they would be taking orders?
I e-mailed them and mine came back (no room to accept)ha ha! You must have got lucky getting thru.

Don>>>

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Chronologically challenged. But still kicking!
'92 CAMARO RS
305 TBI 5/spd (now TPI)
B4C Alt.
'69 camaro-BB/Lenco,1050 dominators, /Pump Gas/no drugs 8.97-150+/3200lbs.
SoCal Thirdgen F-Bodies

 

I thought that project was canned. I would like to see them go through with it though.

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91 Z28 1LE 5.7 automatic
SLP 1 3/4 headers, Random Technology cats, Borla exhaust, Accel 8.8 wires, Hotchkis STB, Pirelli P7000 Super Sports P 245/50ZR 16
More to come...

 

Is there a link to this project anywhere?

 

visit http://www.sdpc2000.com/htm/vortec_tpi.html

thats the last link I had, just checked it, and its good.

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87 Formula Yellow/Black

5.1 TPI Automatic
Baer 12" brakes 4 wheels, KYB AGX Adjustable Shocks & struts, Custom Leather interior, WAAAY TOO MANY MODS TO LIST

87 Formula TPI (5 Speed) Yellow/Gray STOCK

1967 Buick Riviera 430hp Turns high 14's (Not bad for 4300 lbs)

83 Camaro (Parts)
83 T/A (parts)

http://www.3rdgenformula.com

 

HAHAHA!!!

2 months ago it was 3-4 weeks until release. And I also find it hard to believe that a factory TPI setup that makes 375 HP with a hotcam and vortec setup will not benefit from runners and plenum/TB mods. I bet the plenum wasn't even ported and it ran a factory 48mm TB and no airfoil and a factory unmodded MAF sensor(if they ran one). I don't believe that at all...I'll believe it when I see it. They forget the majority of TPI poeple on this board have already done those intake mods before they consider heads, cam and lower intake. We'll see...in the meantime, I still have a set of ported Vortec heads in my garage, waiting for a seperate engine buildup, probably for a truck or another F-body.

 

I got the same e-mail reply from SDPC. Expect it out in 3 weeks for $399. I'm counting the days.

 

damn $400?!!!! might as well get a Ram Jet intake

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-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

To be installed eventually far far far into the future: Yours if the price is right and I don't have to ship :
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
AOL IM: superGRtaz

 

I can't imagine the 375 hp being realistic. I guess it is nice to dream, though.

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1989 IROC-Z Original 350 was swapped for a 305! Now I have a take-out 350 4-bolt main Vortec truck motor, ready to set things right

 

I plugged in the numbers on the ol Desktop Dyno for my SLP cam which is almost identical to the LT4 Hot cam and it came out 376 HP @5,000 rpm, and 452 ft-lb torque @3500 rpm.

[This message has been edited by FlashGTA (edited August 27, 2001).]

 

I dont see why 375 HP makes you guys surprised. My engine made 317 HP to the wheels, and if you add the 15% drivetrain loss back in, thats about 370 HP at the flywheel. I've got a HOT cam, TPIS intake/runners/TB, ported Corvette L98 heads, and SLP 1 3/4" headers.

I'm glad this intake is finally going to be released.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
317 RWHP, 418 RWTQ
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Member: SoCal F-Bodies
-=ICON Motorsports=-

 

375 hp suprised me because it was using stock runners, plenum, MAF, and a factory ecm with a stock chip. That just seems like a lot to me.

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1989 IROC-Z Original 350 was swapped for a 305! Now I have a take-out 350 4-bolt main Vortec truck motor, ready to set things right

 

Funny, on their own website they claim the same numbers as the first post says, but,....

the website says only 360 hp with the Hot cam kit.

Even this seems high if they used oem runners(all their pictures show them using edlbrock runners) and a stock chip(iffy considering the huge difference in airflow between a stock tpi and one that supposedly makes 360 hp).

Call me a 'doubting Thomas' but SDPC hasn't done a lot to gain trust when it comes to this manifold.

 

On that same page I just saw a picture of there 375/360 horse motor. It has headers, electric water pump, and a msd ignition. Those are standard fair in a nice street motor, but I think they certainly had something to do with their numbers. Still nice to know that you can get those numbers on a iron headed motor with a streetable compression and long runners.

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1989 IROC-Z Original 350 was swapped for a 305! Now I have a take-out 350 4-bolt main Vortec truck motor, ready to set things right